Cirugia Vascular

#Estudo sugere que 4400 passos por dia bastam para reduzir risco cardiovascular

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exercicios

Estudo sugere que 4400 passos por dia bastam para reduzir risco cardiovascular

 

Quando se trata de viver mais tempo e melhor, alcançar a meta dos 10 mil passos por dia pode não ser mais necessário. Essa é uma informação gerada de um estudo observacional publicado recentemente no JAMA Internal Medicine.

Ainda de acordo com o novo estudo, as mulheres mais velhas que andaram mais do que os seus companheiros tiveram taxas de mortalidade menores. Elas deram apenas 4400 passos por dia para se exercitar.

Mas, de onde saiu esse número?

Curiosamente, o número tem como origem uma campanha de marketing do Japão dos anos 1960. Na preparação para a Olimpíada de 64, em Tóquio, uma empresa criou um dispositivo voltado aos consumidores preocupados com a saúde. Ele era chamado de Manpo-Kei, que significa “medidor de 10 mil passos”.

O aparelho foi um dos primeiros podômetros, baseado no trabalho do médico Yoshiro Hatano, do Departamento de Saúde e Bem-Estar da Universidade Kyushu.

Por que isso importa?

A maioria das pessoas, independentemente de sua idade ou nível de condicionamento físico, pode andar em seu próprio ritmo, tornando essa forma de atividade física amplamente acessível.  Mas para muitos idosos, a ideia de dar 10 mil passos todos os dias pode parecer assustadora, podendo desencorajá-los a caminhar mais.

Com tudo isso em mente, o Comitê Consultivo de 2018 sobre atividades físicas solicitou mais pesquisas sobre a relação dose-resposta entre passos diários e uma boa saúde.

Metodologia

Ao longo de uma semana, 16. 741 mulheres com idade média de 72 anos usaram acelerômetros durante suas horas de vigília. Os pesquisadores coletaram dados ao longo de quatro a sete dias. As mulheres foram divididas em quatro grupos, com base enquanto caminhavam. Os pesquisadores rastrearam quantas mulheres morreram em cada quartil durante uma média de 4,3 anos de acompanhamento.

Resultados

  • As mulheres tomaram uma média de 5499 passos por dia. Foi um pouco mais do que a média dos Estados Unidos, medida por smartphones, de 4800 passos. Durante o seguimento, 504 mulheres morreram;
  • Mulheres com média de, aproximadamente, 4400 passos diários tiveram taxas de mortalidade menores do que aquelas que tomaram cerca de 2700 passos por dia;
  • Houve uma resposta à dose, particularmente no extremo inferior ou inativo do espectro;
  • Houve declínios adicionais na mortalidade entre as mulheres que andaram mais. Mas apenas até cerca de 7.500 passos diários. Além desses, as taxas de mortalidade se estabilizaram;
  • Andar mais rápido ou mais devagar não pareceu afetar as taxas de mortalidade quando o número de passos foi calculado.

Uma advertência

Este tipo de estudo não pode provar definitivamente que andar mais ajuda as pessoas a viver mais. É possível que as mulheres que estavam doentes no estudo tenham reduzido os seus passos, por exemplo.

No entanto, os pesquisadores controlaram muitos fatores que poderiam ter influenciado os resultados. Incluindo o estado de saúde, a idade, a dieta e o estilo de vida.

Também foram analisados novamente os dados, com resultados semelhantes, após a exclusão de mulheres que podem não estar em boa saúde com base em fatores como diabetes, câncer ou baixo peso.

O que os pesquisadores dizem?

Os resultados provavelmente se aplicam a todos os indivíduos que não são muito ativos, incluindo homens e mulheres mais jovens. Essa informação veio do principal autor do estudo, I-Min Lee, MD, ScD, do Hospital Brigham and Women e Harvard Medical School, em Boston.

“Dê mais passos, até mesmo um número modesto de etapas está associado a uma mortalidade mais baixa. Todas as etapas contam, não apenas as tomadas durante o exercício”, disse I-Min Lee.

 

PebMed

Autora: 

Jornalista carioca. Diretora executiva do Digitais do Marketing, colunista de cultura e maternidade dos sites Cabine Cultural e Feminino e Além, respectivamente.

Referências:

#Après les complications cardiovasculaires et rénales, la copeptine associée au #risque d’amputation – Association entre taux de #copeptine plasmatique et risque d’amputation des membres inférieurs chez des patients #diabétiques de type 1 et 2

Postado em

Louis Potier, Paris

Le diabète est la première cause d’amputation non traumatique dans le monde. Si les plaies du pied en sont à l’origine, il est difficile de prédire le risque d’amputation chez les patients diabétiques tant les facteurs impliqués sont nombreux. Récemment, de nombreuses études ont mis en évidence un rôle de la copeptine dans la survenue des complications cardiovasculaires et rénales du diabète. La copeptine est à la vasopressine (hormone antidiurétique) ce que le peptide-C est à l’insuline, un marqueur de sa sécrétion par la posthypophyse. Sa sécrétion est donc en partie dépendante de la volémie extracellulaire (la copeptine augmente en compensation quand la volémie diminue).

Dans cette étude, les auteurs ont analysé l’association entre le taux de copeptine plasmatique à l’inclusion et le risque de survenue d’une amputation dans plusieurs cohortes de patients diabétiques de type 1 (cohortes GENESIS n = 503, durée de suivi 5 ans et GENEDIAB : n = 207, durée de suivi 10,2 ans) et de type 2 (DIABHYCAR : n = 3 101, micro/macroalbuminurie, durée de suivi 5 ans et SURDIAGENE : n = 1 452, durée de suivi 7 ans). Les cohortes ont été poolées pour chaque type de diabète.

L’âge moyen des patients était de 45 ans et 66 ans, avec une durée moyenne de diabète de 28 et 14 ans pour les DT1 et les DT2 respectivement. L’incidence des amputations étaient de 5,5 % (n = 39) pour les DT1 et 2,5 % (n = 115) pour les DT2. En analyse multivariée, les facteurs associés avec le risque d’amputation étaient pour les DT1 : l’HbA1c, les antécédents d’amputation et le taux de copeptine à l’inclusion. Pour les DT2 : le sexe masculin, la présence d’une microalbuminurie, les antécédents d’amputation et le taux de copeptine à l’inclusion.

Le risque d’amputation pour chaque augmentation d’une déviation standard de copeptine était de 1,91 (1,47-2,45), p < 0,0001 et 1,79 (1,52-2,09), p < 0,0001 pour les DT1 et DT2 respectivement. Ces associations restaient similaires et significatives après ajustement sur un ensemble de facteurs de risque d’amputation dont le débit de filtration glomérulaire et l’albuminurie. Le risque de revascularisation des membres inférieurs était également associé au taux de copeptine chez les DT2.

Ces résultats complètent ceux de la même équipe qui ont déjà montré une association forte entre copeptine, maladie rénale et risque cardiovasculaire. De plus, ils soulèvent des hypothèses explicatives pour les observations récentes d’un sur risque d’amputation chez les patients traités par inhibiteur du SGLT2. En effet, si la copeptine est un marqueur de la volémie, ces résultats suggèrent qu’une diminution de la volémie augmente le risque d’amputation. On peut imaginer que cela soit par diminution de la perfusion distale qui décompenserait une lésion sur un tissu déjà mal perfusé. Un article récent des mêmes auteurs a mis en évidence une association entre diurétique et amputation (Potier et al. Diabetologia 2019). Au vu de cette hypothèse, l’effet diurétique des inhibiteurs SGLT2 pourrait être une explication au surrisque d’amputation sous ces traitements.


D’après la communication de L. Potier et coll.
“Publié par Diabétologie Pratique

#El #dispositivo de asistencia ventricular se reduce a lo mínimo en la #insuficienca cardiaca

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La Paz implanta el dispositivo de asistencia ventricular izquierda más pequeño hasta ahora para dar soporte circulatorio a los pacientes con insuficiencia cardiaca terminal y que no son candidatos a trasplante de corazón.

El Hospital Universitario La Paz ha implementado un programa para dar respuesta a pacientes en situación de insuficiencia cardiaca terminal y que no son candidatos a trasplante de corazón.

Esta opción alternativa consiste en instalar un dispositivo de asistencia ventricular izquierda (LVAD, por sus siglas en inglés) que se implanta en la cavidad pericárdica y da soporte circulatorio a estos pacientes. Estos dispositivos representan un tratamiento efectivo y bien establecido para los pacientes que presentan insuficiencia cardíaca avanzada, es decir, cuando el corazón no puede bombear suficiente sangre para satisfacer las necesidades del organismo.

El abordaje para implantar este tipo de dispositivos debe planificarse desde una perspectiva multidisciplinar. En el Programa desarrollado en el Hospital La Paz están implicados y coordinados los servicios de Cardiología, Cirugía Cardíaca, y Anestesiología Cardio-Torácica.

El dispositivo implantado es hasta ahora el modelo comercialmente disponible más pequeño del mundo y está diseñado para reducir la invasión quirúrgica y mejorar los tiempos de recuperación del paciente y sus resultados. Además de su uso como terapia de destino en pacientes con insuficiencia cardíaca avanzada y refractaria del ventrículo izquierdo, este tipo de dispositivos sirven también como puente para el trasplante cardíaco. Con un peso de sólo 160 gramos, la bomba de flujo continuo de este dispositivo es un 30% más delgada y tiene un 38% menos de volumen que otros dispositivos centrífugos disponibles. Ello elimina la necesidad del bolsillo abdominal para alojar el dispositivo. Además, cuenta con una única cánula de entrada integrada de 10 mm de diámetro que facilita su disposición en pacientes con anatomía compleja, ya que mantiene una posición de entrada en la aorta estable

La insuficiencia cardíaca es una patología que afecta a más de 15 millones de personas en Europa y es hoy la primera causa de ingreso hospitalario no planificado. Se espera, además, que esta cifra siga aumentando, principalmente por el envejecimiento poblacional. De ahí la importancia de estos programas para dar respuesta a aquellos pacientes en los que los tratamientos convencionales no son efectivos o que, por causas diversas, no son candidatos para un trasplante de corazón. El Hospital Universitario La Paz dispone de una consulta monográfica de insuficiencia cardíaca avanzada en la que se valoran anualmente 150-200 pacientes.

Rehabilitación cardíaca

Los programas de rehabilitación en pacientes con insuficiencia cardiaca han demostrado una mejoría de la capacidad funcional de los pacientes a corto y medio plazo y un aumento de la supervivencia de los pacientes a largo plazo.

La Unidad de Rehabilitación Cardiaca del Hospital La Paz contempla la rehabilitación cardiaca del paciente portador del dispositivo de asistencia ventricular definitiva, siendo la única unidad en España que ha ofertado a este servicio a este tipo de pacientes. En estos programas se incluye el entrenamiento físico, educación a pacientes y cuidadores, pautas de actuación psicológica y control de los factores de riesgo para conseguir la máxima eficacia.

Que antitrombótico usar em paciente com doença arterial obstrutiva periférica?

Postado em Atualizado em

Eduardo Sansolo
Escrito por Eduardo Sansolo
A Doença Arterial Obstrutiva Periférica (DAOP) é a terceira mais prevalente manifestação da aterosclerose atrás apenas da doença coronariana e cerebrovascular. Está presente em mais de 200 milhões de pessoas no mundo e é uma causa significativa de morbidade e mortalidade devido à perda do membro. Apesar da terapia antitrombótica ser parte importante do tratamento para prevenção de eventos cardiovasculares, os pacientes com DAOP são frequentemente subtratados. Além disso, há poucos estudos duplo-cegos, randomizados com tratamento clínico dos pacientes com DAOP, dificultando a uniformização de práticas clínicas e guidelines. É nesse contexto que visamos a resumir as evidências disponíveis sobre os agentes antitrombóticos no tratamento da DAOP.

O estreitamento devido à aterosclerose da aorta infra-renal e das artérias dos membros inferiores é a principal causa da DAOP e a ativação plaquetária desempenha papel importante no surgimento e agravamento dessas lesões. Do ponto de vista da decisão clínica, os pacientes portadores de DAOP devem ser divididos em 3 grandes grupos:

  • Assintomáticos;
  • Sintomáticos;
  • Revascularizados

Baseado nesta divisão, seguem os principais estudos com evidência de antitrombóticos em DAOP(Fig 1):

 

Pacientes assintomáticos

Atualmente, não há evidência da eficácia de aspirina em pacientes portadores de DAOP assintomáticos, entretanto dado o risco aumentado de eventos cardiovasculares, o tratamento com AAS em pacientes assintomáticos é sensato, particularmente se há evidência de doença aterosclerótica em outros leitos arteriais.

Pacientes sintomáticos

Pacientes com DAOP sintomática devem ser tratados com agentes antitrombóticos a fim de reduzir o risco cardiovascular. O uso em esquema de monoterapia de AAS ou clopidogrel é recomendado, embora estudos robustos de pacientes com DAOP sejam limitados e as inferências feitas através de análise de subgrupos de estudos cardiovasculares. Estes estudos demonstram uma redução de 1,5% ao ano de complicações vasculares sérias com o uso de AAS em pacientes portadores de DAOP sintomática. Logo, apesar da fraca evidência, o uso de AAS em monoterapia deve ser encorajado em pacientes com DAOP sintomática.

Outros agentes também foram estudados como prevenção secundária. O estudo CAPRIE demonstrou um benefício do clopidogrel sobre o AAS em pacientes com DAOP demonstrando uma redução anual de 1,15% em eventos vasculares. Já o COMPASS evidenciou que o uso de Rivaroxaban associado ao AAS reduziu 1,54% ao ano o risco de amputação de membros em pacientes sintomáticos. Entretanto, estes benefícios devem ser ponderados, uma vez que há o aumento de risco de sangramento de 0,69% ao ano.

Pacientes portadores de DAOP com história recente de angioplastia coronariana ou evento coronariano agudo devem receber duplas antiagregação com AAS + Clopidogrel ou AAS + Ticagrelor. O uso de dois antiagregantes a longo prazo deve ser não é isento de riscos, uma vez que aumenta a chance de eventos hemorrágicos em 2 vezes se comparada com o uso de monoterapia com AAS.

Pacientes revascularizados

Pacientes submetidos à revascularização dos membros inferiores devem receber terapia antitrombótica continuamente. No subgrupo submetido à cirurgia convencional, tanto o AAS quanto o Clopidogrel ou a associação de Rivaroxaban com AAS apresentam benefícios. Nos pacientes cirúrgicos de risco baixo e intermediário de perda do membro a monoterapia com AAS ou Clopidogrel está bem indicada. Já nos do subgrupo de mais alto risco de perda do membro, tais como bypass com prótese, bypass para vasos da perna, desague pobre,  a associação Rivaroxaban + AAS deve ser prescrita. A terapia tripla com 2 antiagregantes + anticoagulação deve ser evitada devido ao risco proibitivo de eventos hemorrágicos.

Nos pacientes submetidos ao tratamento endivascular, a terapia padrão de dupla antiagregação com AAS + Clopidogrel por 1 a 6 meses seguida de monoterapia contínua deve ser a indicada.

Abaixo segue um algoritmo para o auxílio à escolha clínica de manejo antitrombótico em pacientes com DAOP(Fig2).

Referências bibliográficas:

Mohamad A. Hussain, Mohammed Al-Omran, Mark Creager, Deepak L. Bhatt et al. Antithrombotic therapy for peripheral artery disease. Journal of the American College of Cardiology 2018; 71(21): 2381-2496.

#Anticoagulantes orales directos: la opción para #trombosis en cáncer

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Nuevos tratamientos facilitan la prevención del evento trombótico en cáncer, complicación que ensombrece la evolución del paciente.

Infusion pump feeding IV drip into patients arm focus on needle

En un paciente con cáncer, la prioridad es controlar el tumor, ya que es el principal riesgo para su vida. Sin embargo, asociados a la enfermedad hay otra serie de riesgos que también deben vigilarse porque pueden acabar siendo la causa indirecta del fallecimiento. De esta forma, por ejemplo, la enfermedad tromboembólica venosa (ETV) es una de las complicaciones más frecuentes y la segunda causa de muerte prevenible en los pacientes oncológicos.

La última actualización de las guías clínicas para el tratamiento de la trombosis asociada al cáncer señala que el uso de los anticoagulantes orales directos debería ser a partir de ahora el tratamiento de primera línea. “En el estudio en el que hemos participado se ha visto que la trombosis venosa ocurre en el 20% de los pacientes y comprobamos que los nuevos anticoagulantes igualan los resultados de la heparina, que es el actual tratamiento de elección, en la prevención de las complicaciones trombóticas y su gran aportación es que disminuyen de manera muy significativa el riesgo de sangrado, excepto en los tumores gastrointestinales”, explica Amparo Santamaria, hematóloga y jefa de la Unidad de Trombosis del Hospital Universitario Valle de Hebrón, de Barcelona.

Limitar los riesgos

Los tumores producen sustancias procoagulantes que activan la coagulación. La cirugía, la quimioterapia, la colocación de catéteres o la inmovilización prolongada pueden inducir estados de hipercoagulabilidad y la formación de trombos. En algunos cánceres, como el de riñón, ovario, colon o sistema nervioso central (SNC), existe un mayor riesgo. La edad avanzada y el estadio del cáncer también son factores de riesgo que se deben tener en cuenta. Todo esto hace que en los pacientes oncológicos el riesgo de sufrir un evento tromboembólico sea hasta siete veces superior y que un 20% de los pacientes presenten un riesgo alto de hemorragia y de tromboembolismo recurrente.

La hemorragia y el tromboembolismo son siete veces superiores en enfermos oncológicos. También existe mayor riesgo de fibrilación auricular 

“Sin embargo, a pesar de saber todo esto, no se le está dando la importancia que tiene la anticoagulación en estos pacientes. Vemos cada vez más cómo se siguen administrando los mismos tratamientos y hay pacientes que llevan muchos años con heparina cuando sabes que lo que hay que hacer es manejarlos de forma diferente. No existen unidades especializadas en el manejo a largo plazo de estas complicaciones”, señala Santamaria.

Otra de las complicaciones asociadas es la fibrilación auricular, que en los pacientes de cáncer llega a ser de hasta el 4%, el doble de prevalencia que en la población general. “Esto puede deberse al mismo cáncer, que crea problemas en el corazón, pero sobre todo por los nuevos tratamientos contra dianas moleculares que consiguen mejorar la supervivencia, pero que tienen este efecto secundario”, explica la hematóloga, quien además señala cómo hace no mucho tiempo no se veían pacientes de cáncer con fibrilación auricular, una enfermedad que se suele asociar a la edad.

“Al cronificar la enfermedad estamos empezando a ver complicaciones nuevas, como estas fibrilaciones auriculares. Es una buena noticia, entre comillas, porque significa que estamos mejorando la supervivencia, pero que hace necesario que tengamos presentes estas nuevas comorbilidades para que no haya complicaciones con los pacientes”, apunta, e insiste en que con la terapia con anticoagulantes orales directos es posible un manejo seguro y que ayude a reducir muchos de estos riesgos.

“Aunque la primera causa de muerte sigue siendo el cáncer, la segunda es la coagulación. Estamos tratando muy bien al paciente con cáncer, pero estos nuevos fármacos están haciendo que haya un aumento de trombosis y problemas cardiológicos. Por eso, es necesario que el especialista determine cuál es el tratamiento más adecuado y así mejorar el pronóstico a largo plazo y la calidad de vida del paciente”.

No limitar por financiación

Uno de los factores que juegan más a favor de la utilización de los nuevos anticoagulantes directos orales es cómo ayudan en la adherencia terapéutica. “A pesar de que ahora mismo no está financiado por la Seguridad Social, los pacientes prefieren el tratamiento por vía oral. Tras varios meses con heparina muchos de ellos tienen molestias por los pinchazos y pueden saltarse alguna dosis”.

Aunque los pacientes de cáncer suelen ser en general muy cumplidores de sus tratamientos, también es cierto que no se debe olvidar la facilidad de la administración de los fármacos para ayudarles en este sentido. Por eso, la profesional considera que debería insistirse más en que estos nuevos anticoagulantes fueran financiados. “Una vez que se pueda disponer de esta opción, el paso siguiente sería concretar, de forma individualizada, cuál es el mejor tratamiento: o heparina o los nuevos anticoagulantes, en función de la situación de cada paciente. Pero debería quedar claro que su financiación o no por el sistema no debería ser el elemento determinante”, concluye.

 

Nuevas unidades para el control de la oncotrombosis

Las nuevas recomendaciones sobre terapia de la trombosis asociada al cáncer apoyan un enfoque multidisciplinar, de oncólogos y hematólogos, en unidades de Oncotrombosis con un objetivo: mejorar los resultados para los pacientes.

“Los afectados necesitan un manejo más exquisito y de precisión de los anticoagulantes, porque sus tratamientos van cambiando a lo largo de la enfermedad. La experiencia del hematólogo ayudaría en esta medicina más personalizada”, explica Amparo Santamaria, quien pone como ejemplo las unidades creadas en su momento de cardio-oncología para tratar la toxicidad cardiovascular de los tratamientos y los buenos resultados que se están obteniendo.

“El aumento de la supervivencia en cáncer hace necesario un enfoque más a largo plazo y un buen seguimiento por parte de especialistas dentro de estas unidades de onco-trombosis”.

#20 Warning Signs of Poor Blood Circulation in Your System

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Good health depends on a lot of different factors, and a proper blood circulation is one of its main ones. The blood in our bodies is the responsible fluid to take nutrients and oxygen from one spot to another. Helping our body functioning correctly and being balanced. Whenever our blood circulation fails to deliver the proper nutrients to the specific parts of our body, that leads to a diverse range of health issues.

If these issues are left untreated, poor blood circulation can cause severe damage to our heart, brain, liver, limbs, and kidneys. There are many reasons why you may suffer from poor blood circulation. One of the most common ones if atheroscletosis. Which is also known as the hardening of the arteries. As well as peripheral artery disease (also known as PAD).

However, poor blood circulation can also be a result of a variety of health problems. Such as heart diseases, diabetes, blood clots or obesity. An excess of drinking, smoking, and also things like eating disorders or pregnancy can make you extremely vulnerable to this conditions.

If you are aware of the symptoms that show up when your blood circulation isn’t the appropriate, you will be able to control the reason behind it and find a timely treatment. Poor blood circulation can also lead to heart attacks, strokes, or even death. So make sure to check up with your doctor if you experience any of the symptoms listed below in this article. Keeping a healthy blood circulation is key to staying healthy and leading a good lifestyle!

Doctors can process a number of tests on you to find out what is causing your poor blood circulation, thus finding an appropriate solution in a timely manner. So read our article below to find out more about blood circulation.

1.Blood circulation: Swelling of lower extremities

A number of causes can produce swelling on your feet. For example, sitting or standing for a very long period of time in the same position. Or suffering from obesity, malnutrition or PMS (pre-menstrual syndrome). Among others such as high salt intake, ageing, leading a sedentary lifestyle or being pregnant. However, these listed types of swelling are only temporary and do get better within hours.

If the swelling or edema on your feet lasts for a long time, then the reason may relay on poor blood circulation. The explanation for this is that the lack of proper blood circulation make it so that the kidneys are unable to function as they should. By not being able to keep fluids in the blood vessels where they should be. The result of this is the leeching out of fluids which then settle in the surrounding tissues. This leads to swelling. In very severe cases, this poor blood circulation process can cause leg ulcers.

An easy trick to reduce swelling on your feet and legs is by laying down and raising your legs above heart level. Use some pillows or a higher chair to do so. Relax and apply cold if possible (never directly on the skin, always use towels or blankets to prevent skin burns from ice). If swelling does not reduce within a couple hours, please do consult your doctor. Blood circulation should improve once you’re laying down. But if it doesn’t, it could be a sign of poor blood circulation and needs to be diagnosed

If you also get swelling in other extremities or if your swelling includes discolouring or bruising under your skin make sure to inform your physician about that. Take pictures and write down when it happened and how it happened, if anything triggered it.

2.Blood circulation: Numbness of hands and feet

Numbness of hands and feet can be a consequence of numerous factors. But it can also be a sign of poor blood circulation. Numbness is usually felt in two different ways. The first one being a slight tingling on your extremities. This is reported to feel like little insects or ants walking over your skin. Just like when your hands or feet fall asleep and start waking up again.

The second symptom being what is usually called numbness. A feeling of numbness is when you stop feeling your extremities the way you usually do. When poor blood circulation comes into play, you will have this feeling that your hands and feet are swollen and cannot really feel what you touch. Like if your extremities had fallen asleep and couldn’t really wake up.

In this case, you need to be careful not to hurt yourself when doing normal activities as you won’t have full sensitivity in your hands and feet. Whenever your blood circulation is not at its best, there are several things you can do to help your extremities.

First of all, keep your hands and feet warm. Move them around, clap your hands, walk often. Don’t let your blood circulation get the best of you! If you have to sit or stand in the same position for long at work, make sure to take small breaks. Move around and stretch to help your blood circulation get back to normal. This will also help you get a little extra fitness!

If you do feel like your hands or feet are often feeling numb or tingling, you may want to check with your doctor. Blood circulation issues can be solved easily if treated on time. Just give a quick call to your local doctor if you have any of these symptoms.

3.Blood circulation: Cold hands and feet

Similarly to the above, having cold hands and feet is a symptom of bad blood circulation. It usually goes hand in hand with numbness and tingling, but not always. You may experience them together or separately.

Our blood is what maintains our body temperature. Thus, when having poor blood circulation, your extremities may suffer from a loss of temperature. Your hands and feet are the furthest parts of your body, so it’s normal that they suffer first. Including your fingers and toes. Additionally, blood circulation is what takes the oxygen to the cells around the body. When oxygen levels drop in your cells, this can lower the body’s temperature.

If you feel like your hands and feet are getting too cold, make sure to rub them. Try clapping your hands, jumping, massaging your hands and feet. Moving around will help getting your blood circulation going. However, poor blood circulation is not the only thing that could cause this symptom. A peripheral neuropathy, Raynaud’s syndrome, or even an underactive thyroid are common causes. Make sure to cover your extremities if it is cold outside and to use loosen clothes. This will help with your blood circulation. Additionally, make sure to use the correct size of shoes to tackle the problem on the feet. High heels or open shoes may cause blood circulation issues if used with the wrong size or temperature.

Whatever the cause, it is very important to tackle the problem correctly. Your doctor will be able to diagnose what causes your cold hands and feet. If related to blood circulation, you will get proper treatment. Make sure to bring all your current medications with you and to list any other symptoms that you may feel. Same applies to any other causes whenever needed.

4.Blood circulation: Persistent tiredness and fatigue

Tiredness is a typical symptom of physical effort and can also be linked to numerous drugs. Nonetheless, when consistently feeling weakness and fatigue, the reason may lay on poor blood circulation to various body parts.

Struggling organs will fight to make sure they continue functioning correctly. It even influences the way muscles work. As they are not getting enough nutrients and oxygen.

Alongside weariness and tiredness, a few people may significantly experience the ill effects of shortness of breath, absence of stamina and sore muscles. These are few of the associated symptoms of poor blood circulation related to your system. More reasons for tiredness include excessive drinking (alcohol abuse), uncontrolled intake of caffeine, lack of quality sleep, inactivity, bad dietary patterns, anxiety, grief, depression and stress.

All in all, having proper blood circulation means having good health. As soon as blood circulation is affected, our body will show symptoms to alert us. If you feel like you have any of the ones listed in this article, you really want to contact your doctor. Blood carries the oxygen around our body, and a lack of oxygen in our cells and brain can cause critical issues in the long-term. When caught early enough, it can be cured and controlled without further issues.

However, tiredness and fatigue may also be the symptoms of a list of other diseases. This is also why it is important to always keep your doctor in the loop of what happens within your body. Either by poor blood circulation or any other reason, it is important that you feel energetic and ready to conquer the day at any given time! If that is not how you feel, you definitely need to visit your doctor of choice to check your blood circulation.

5.Blood circulation: Slow healing and weak immune system

A slow blood circulation (also called circulatory system) will directly affect your immune system and general health. Because of poor blood circulation, your body is not receiving the vitamins and minerals that it needs to fight off diseases and infections. As these are not distributed in a timely manner or even in proper amounts. This directly affects the capacity of your body to recognise, diagnose, and fight off pathogens.

Whenever your immune system is weak, you will notice that your body suffers more often from common diseases or takes you longer to heal. You may also notice that you get bruised easily, this is due to blood thinning. Or even that small wounds hurt more and take very long to heal or scar. Your gums may bleed as well as your nose.

To enhance your blood circulation and get your immune system back to work, make sure to incorporate exercise in your every day schedule. Even just 20 minutes of walking, five to seven times a week can make a real difference to your blood circulation and immune system. Additionally, keep a balanced diet so that your body gets all the right nutrients. Make sure that your dishes are colourful and incorporate plenty of leafy greens, veggies, fruits, and proteins. Avoid sugars and processed foods, as well as carbonated sodas.

If after doing all these things you still feel weak and not healing properly, it is necessary that your refer your problems to your doctor. The physician will be able to diagnose whether your issues are related to poor blood circulation or to any other cause. Whatever the reason, make sure to follow the steps your doctor lays down for you and keep a balanced lifestyle with exercise and proper nutrition.

6.Blood circulation: Varicose veins

Varicose veins developing in the legs can be a side effect and also a reason for poor blood circulation. Because of an incorrect blood circulation system, there is a pressure buildup in your legs. This leads to varicose veins just under the first layer of the skin. Veins then become extremely visible, twisted, and swollen.

Varicose veins have a tendency to show up on the lower part of the legs and cause itchiness, irritation, pain, restlessness, heaviness and burning sensations. The presence of protruding veins is obviously a beauty concern for those suffering it and having to show off their legs at work or social events. However, varicose veins are not only caused by poor blood circulation. They are also common symptoms of hereditary diseases, obesity, hormonal changes, jobs that require standing still, the use of birth control pills, and even constipation.

On the off chance that you have varicose veins, it is extremely important to wear pressure stockings to allow for appropriate blood circulation to occur. Additionally, counsel your specialist to decide the correct reason and treatment for your varicose veins. Varicose veins can be treated with non-invasive procedures such as massages, use of compression stockings, and laser. But can also be reduced with injections and surgery.

Additional Information:

Making a few changes in your lifestyle and nutrition will help control, reduce, and prevent the appearance of varicose veins. If the reason behind them is indeed poor blood circulation, your doctor will be able to prescribe proper medication. As well as providing important advises to get your circulatory system in motion again! Always make sure to bring a list of your medications when visiting the doctor and listing any other symptoms you may be suffering from. This will help with the diagnose and get you back on your feet in a timely manner!

7.Blood circulation: Hair loss

Balding with no apparent reason is an unmistakable sign that blood isn’t getting pumped appropriately around your system. The moment your scalp is not receiving the appropriate amount of essential nutrients, you will feel your hair becoming thin and dry. Thus falling out at a higher rate than usual.

When the hair loss issue is related to poor blood circulation, the use of specific shampoos is unnecessary. Instead, it is very important to activate the follicles in your scalp. In order to do so, make sure to wash your hair with your head downwards and massage throughout. This will activate the cells of your scalp and bring more blood circulation to it. Another way to diagnose blood circulation issues is to check your skin and nails. If you get brittle and weak nails, as well as dry skin and hair loss, you are not getting the proper nutrients. Which is usually related to poor blood circulation.

Even though hair loss is usually encountered in men, women can also suffer from it when it comes from poor blood circulation. Other factors causing baldness are stress, excessive smoking, aging, hormonal imbalance, nutritional deficiencies, thyroids, anemia, chronic illnesses, and genetic factors among many.

If you notice that your hair is falling off faster than usual, it is getting thinner and the ends are split, check your skin and nails. If they’re dry and brittle, then get an appointment with your doctor. After running a few tests you will be able to have a proper diagnose of the causes for your hair loss and start treatment straight away. Make sure to tell your doctor if you noticed any other symptoms and bring with you your most recent blood tests and list of current medication as to avoid any interactions.

8.Blood circulation: Erectile dysfunction

Blood is the reason why most of our organs work the way they do. When there is poor blood circulation, many things will stop working or will work from time to time. This includes the reproductive organs. A poor blood circulation can cause erectile dysfunction in men. This issue is represented by consistent problems in sustaining and even achieving an erection even though the subject feels aroused.

Erectile dysfunction (also known as ED) is also frequently associated with atherosclerosis. This is another very important reason to leave any embarrassment behind and to contact your doctor as soon as this becomes a recurrent problem. Due to erectile dysfunction being caused by physical and not emotional issues, it can be treated if diagnosed correctly.

Whenever visiting your doctor, make sure to take with you not only a list of your current medications and illnesses. But also a detailed list of the dates and times erectile dysfunction has happened to you. This will help the doctor diagnose the reasons behind erectile dysfunction and help you correct it as soon as possible. Once the issue is solved, either blood circulation or atherosclerosis, you will be able to achieve and sustain proper erections, thus returning to a satisfactory sexual life with your partner.

Do not feel ashamed or afraid to talk about this. Many men suffer from erectile dysfunction and the only way to solve the issue is talking to a physician. Keeping it a secret will only add to your stress and anxiety and make the problem not only physical but also psychological. Leading to a more complicated treatment. Make sure to talk about it with your physician and also with your partner as to get the proper support and treatment, you will soon be happy again!

9.Blood circulation: Cyanosis or skin discolouring

On the off chance that your skin or lips turn blue, it unmistakably shows low blood oxygen levels due to poor blood circulation. This issue is otherwise called cyanosis or skin discolouring.

When your blood circulation is normal, your skin will look its natural shade and organs will look either pink or red. However, whenever your blood circulation levels drop, your skin and organs will turn of a greyish color. Some part of your body will turn blue instead, similar to a bruising color. These parts are: fingers, toes, nails, eyes, gums, and lips.

Blue skin is also an early sign of heart disease in babies. It is very important that if you ever get or see someone getting blue or extremely discoloured skin, that you call a doctor or emergency services. Cyanosis can be the indication of something going extremely wrong with your heart and blood circulation so it needs to be treated as soon as possible.

Family history, current medications, and a list of all the symptoms that you have felt is what the doctor needs to diagnose you and treat you correctly. Make sure to take them with you when you attend your next appointment or the emergency room at your nearest hospital. Congenital heart diseases are a major factor for skin discolouring so it is very important to have the above with you when seeing a doctor. Take a friend or relative with you in case you need to be administered medication that may make you dizzy or hospitalised for the time being. Don’t worry, this can be treated, but it is important to catch it on time. Do not wait for the next time it happens, go as soon as occurs the first time. Better safe than sorry, even more when talking blood circulation!

10.Blood circulation: Heaviness in the chest

Our heart is the main and most important organ in your body. Its function is to pump blood around, thus being the manager of blood circulation as we know it.But in order to pump blood correctly, it also needs to receive blood correctly. If your arteries are not bringing enough blood back to your heart, it will cause heaviness and tightness.

The pain will not be constant, it will come and go. This pain is usually known as andina pectoris or angina. However, pain and heaviness in your chest can also be a symptom of atherosclerosis in your arteries. In addition, this same pain can also represent heartburn, muscle spasms, acidity, stomach ulcers, indigestion, or upper respiratory infections.

Because of its nature, it is important that chest pain is treated as soon as possible. Either one of the reasons above can lead to serious heart damage as well as many other organs. Please make sure to check with your physician as soon as possible.

11. Reduced cognitive function

When you think of blood, you do not always think of the brain. The first thing that generally comes to mind is the heart along with its accompanying veins and arteries. This is correct, and technically blood does not go into the brain. There is even something called the Blood-Brain Barrier which is specifically designed to keep blood out of the brain.

While blood does not enter the brain, the brain does need the things that get carried by the blood. This includes oxygen and nutrients to name but a few. Therefore, the brain, like every other part of the body, requires sufficient blood flow if it is to operate correctly. When this blood flow has been decreased, then there will certainly be problems.

Many symptoms of poor circulation are a lot more intuitive than reduced cognitive function. But, if a person has problems remembering things, or possibly they feel a bit mentally foggy, then they could be suffering from reduced or poor circulation. A diagnosis of this kind can only be made if the person displays other symptoms, but it is completely advisable to take it very seriously if the cognitive function is impaired.

A person cannot survive without their brain and if poor circulation is left untreated, the brain will not only suffer in the short-term. If the brain is left without proper blood flow for too long, then the cells will start to die. Unlike other cells in your body, brain cells don’t regenerate properly. Once they have been damaged, the chances of them recovering are incredibly slim. Your mother may have told you that you only get one set of eyes, but you also get one brain.

12. Digestive irregularities

This is another system that one doesn’t usually associate with blood flow. When you think of your digestive system as a whole, you think of food and the waste matter that is created once this food has been broken down. But, consider for a second how this system works. It is a very active system that requires a reliable source of blood, and it needs this blood constantly. No part of the digestive system can be left without blood for any period.

If there is a case where circulation is reduced, then there will be disruptions to digestion. These disruptions can be of many different kinds as the digestive system is quite complex and is made up of many different parts. The noticeable digestive problem that could result from poor circulation is a pain in the abdomen. The abdomen houses the digestive system, so clearly this is the area that would hurt if something goes amiss. This pain may be localized, or it could be a pain that spreads through the general area.

The other problem which could arise is related to the stool. You can tell a lot about the health of a person by looking at their stool. In the case of poor circulation, there is a multitude of things that could go wrong with one’s stool. A person could experience very uncomfortable bouts of diarrhea, or they could even be very constipated.

The type of issue that one is having with their stool is almost irrelevant. The point is, if there has been a drastic change in a person’s bowel movements, then they could very well be suffering from poor circulation.

13. Systemic cramping and pain

There is not a single person on this planet who has not experienced muscle pain at some point or other. There is muscle pain that results from exercise. Then there is the pain that accompanies an injury. Most people also know what it is like to have stiff joints. Granted, this is generally more felt by the elderly, but on the whole, people are quite aware of the concept. The same can be said for cramping. People sleep in awkward positions and pull their backs out all the time. The one thing that all these types of aches and pains have in common is that the people suffering from them can generally pinpoint the root of the problem.

They know that they may have pushed their workout too far, or possibly the sat in an awkward position for too long. If, however, a person has muscle pain or joint cramping and they have no clue why they are feeling that way, then the problem could be poor circulation.

The concept is quite simple, and muscles need blood to function. They need oxygen, and they need nutrients. If they do not get these things, then they will stop working properly. If this wasn’t bad enough, not only will the muscles stop working, they will also start to hurt. This pain will generally result from the stiffness and cramping that will arise when the muscles do not get enough blood.

There will also be pain that will be associated with the reheating of the hands and feet which have become cold due to inadequate blood flow. This pain will be more throbbing than stabbing, but it will be pain none the less.

14. Ulcers on the legs

This condition is not one that is very well known. People may know about ulcers when they think of their mouths as mouth ulcers are relatively common. But, it is possible to get ulcers elsewhere on one’s body. In particular, these ulcers can appear on one’s legs. First, let us have a look at what would happen to the blood in the legs if circulation was decreased.

When blood circulation has been impaired or reduced, what happens is that the blood starts pooling in the veins. This does not necessarily occur in the arteries as the blood here is pumping out the heart and isn’t as affected by gravity. But, the blood in the veins has to try and work against gravity to make its way back up to the heart.

When the circulatory system has been impaired then this blood pool, especially in the legs, which then creates a hospitable environment for ulcers. It is more likely for these to develop on one’s legs, but it is possible for them to appear in other parts of the body. Another reason why a person with bad circulation is prone to ulcers is that of how bad circulation affects a person immune system.

If blood is not flowing correctly, then a person’s immune system is compromised. When this happens, then it will take longer for them to heal which is another thing that will contribute to the development of ulcers. This symptom of poor circulation is one of the more visible ones as an ulcer on the legs or feet of a person is incredibly hard to miss. There are also not many other conditions which will result in this kind of skin condition.

15. Inability to perform strenuous tasks

The secret to living a healthy and happy life is no real secret. There is no mystery here, and there is no real debate. There may be people out there who would want to argue the finer points, points like whether it is healthier to be vegetarian or whether humans need meat to survive. These points will be discussed until the end of the earth. But at the core of each argument is that to be healthy a person needs to do a few simple things.

They need to eat healthy food that is not overly processed, and that is not loaded with chemicals. Added to this diet is exercise. A person who is not exercising is a person who is certainly not healthy. Now, this is all well and good, but what about the people who physically cannot exercise.

Put aside fitness levels for a moment and think about what it must be like to not even be able to walk up a flight of stairs without getting severely out of breath. Or trying to lift something heavy and not be able to move it an inch. This is a very real reality for people with poor circulation. They may not even know that this is why they are unable to perform specific physical tasks. They might think that they are unfit and that they need to try harder.

The reason why people with bad circulation are less physically capable is that their muscles are not getting enough blood and not at the correct speed. Their heart is also taking the strain as it is forced to pump harder to try to get the blood to where it needs to go.

 

16. Unexplained weight loss

These days everyone is obsessed with their weight. People go to the gyms on mass. They spend thousands on diet products and are always on the lookout for the next best thing that will make them thin without having to put in too much effort. This is the society we live in. The thinner, the better. It is for this reason, that if a person suddenly loses weight, they would not blink an eye.

They would more likely be thanking their lucky stars rather than sitting back and trying to figure out what is happening. But, and there is no argument here if a person loses weight and they can find no explanation for it they should not just brush it under the rug. This person needs to take a moment to try and figure out what has changed in their lifestyle. Are they more stressed than usual or possibly they have changed their diet? Maybe they have started a new medication?

If they can find absolutely no reason for this weight loss and they have a few of the other symptoms on this list, then the culprit could be poor blood circulation. Poor circulation does not necessarily affect one’s weight directly, and it is more of a secondary consequence. When a person’s blood is not getting appropriately circulated, they are more inclined to have a decreased appetite, after an extended enough period, this will lead to weight loss. There is also the case of malabsorption. If the digestive system is not getting the correct blood flow, then it does not operate properly. Food is not broken down and absorbed correctly, also leading to weight loss over time.

17. High blood pressure

Blood pressure is a bit of an odd physiological value. It is not one that is widely understood by those who do not work in the medical field. People know about their heart. They know that it beats and on the whole, they can find their pulse if they need to. Barring this, they can feel their heartbeat if they are paying enough attention. But heart rate is only one part of the equation. There is the speed at which the heart pumps blood around the body, and then there is the actual pressure that is created when the heart pumps this blood.

It is almost counter intuitive, but when the body is experiencing poor circulation, a person will have increased blood pressure. This is because the heart has to work harder to pump blood throughout the body. If blood is pooling in one’s limbs and muscles then when the heart tries to beat as normal, it is trying to fit more blood into a space that already has blood.

On the surface, a slight increase in blood pressure may not seem that dangerous. This is only somewhat true. The body is designed to handle periods of high blood pressure. The heart and blood vessels will not be immediately affected if blood pressure increases. There are times when it is normal to have elevated blood pressure. The problem here would involve the timeframe.

High blood pressure in the short-term will not necessarily cause long-term damage. But, if this high blood pressure persists for too long, then the body will start taking the strain. This damage will not only be limited to the heart and blood vessels, but even organs like the kidneys will begin to falter if blood pressure remains high for too long.

18. A decrease in libido

Sex is very much a part of life. It is arguably one of the most critical aspects of the human experience. There are some who may even argue that it controls the world. If this is, in fact, the case, then it would be because sex is a huge motivator for many people. This number is not one that can be tested, but it is safe to say that a lot of us, maybe even all of us, make a lot of our decisions with sex in mind. Considering how important sex is in our lives, it is odd that we are so reluctant to talk about it.

While we may have made quite a bit of progress in this arena over the last couple of years, we are not almost nearly where we need to be. We need to be able to talk about sex not only for our mental health but our physical health as well. The reason for this is because sex is important as it is quite a reliable indicator of one’s overall health.

When using this as a health indicator, doctors will look at not only the reproductive organs themselves but also at a person libido. Libido is made up of a couple of components. There are quite a few hormones involved which are made in the brain and the organs themselves, and then there are the organs which contribute in their way to one’s libido. When it comes to poor circulation, if these organs do not get the correct supply of blood then they will not work in the way that they should.

This applies to both men and women and will manifest itself in a decreased libido. There will also be other dysfunctions in this area including irregular menstrual cycles for women and decreased fertility and functionality in men.

19. Dark rings underneath your eyes

Sleep is incredibly important. A person can go longer without food then they can without sleep. When a person sleeps, their body recharges, and it heals. If a person does not get enough sleep, the effects are incredibly visible. Symptoms of sleep deprivation range from mood disturbances to a decreased immune system. There is also the appearance of little bags and dark rings underneath the eyes.

While these bags and rings may not be attractive, they are temporary. But, if you have dark rings underneath your eyes that won’t go away even though you are getting the correct amount of sleep. Then there may be other factors that should be considered. One of these being bad circulation. There are certain items on this list which are more secondary consequences of poor circulation as opposed to a direct result.

When it comes to dark rings underneath the eyes, these appear because blood is not moving the way it should. Instead, it is pooling in that area and not being circulated by the natural mechanisms in place. As mentioned, there are other causes for these dark rings other than poor circulation. But, there is a very easy way to check whether circulation is the culprit.

The way to do this is to press down on the rings while looking in the mirror. If the rings subtly clear up for a few seconds and then darken up again, then the problem is poor circulation. This little at home test should tell you whether you are having circulation issues, but it will not tell you the extent of the problem. A doctor can only do this after further testing.

20. Brittle nails

When one thinks of their health, they do not generally look to their nails as indicators. Many people do not even look after their nails, so they wouldn’t even actually know if something is wrong with them. Sure, smokers may look at the discoloration and think that maybe their health is taking a beating, but this isn’t even an internal consequence and is only due to the nicotine in cigarettes.

While nails may not be the gold standard when it comes to testing one’s health, they can be good indicators if you know what to look for. The first thing that needs to be considered is the quality of the nail. Are the strong or are they brittle? Do they chip and break very easily or are they thick and hard to cut? If the nails are brittle, then there could be a circulation problem that exists. The reason for this is that nails, like every other part of the body, needs nutrients to grow.

If circulation is weak, then these areas will not be getting enough nutrients and they will, therefore, be weak and will not grow properly. Another way that nails can indicate the quality of circulation is by looking at the nail beds themselves. If you press down on them until they turn white and then release, look at how long it takes for them to go pink again. If this seems like it is taking too long, then there could be a prevailing circulatory problem.

When it comes too poor circulation, there are many symptoms which can be sought out simply because bad circulation will affect the entire body. By looking at one’s nails, you will not be able to make a full diagnosis, but it will give you a pretty good idea on the state of one’s blood circulation.

How to Improve Blood Circulation

• Add physical exercise to your daily routine.

• Stress can be one of the affecting causes of poor blood circulation. Practice meditation, mindfulness, and yoga to control your stress levels.

• Massage your body using warm olive oil and some drops of rosemary essential oil. Use it on your extremities such as hands, fingers, feet, and toes. As well as legs and arms.

• Try contrast hydrotherapy (jumping from hot to icy water and viceversa) to improve your blood circulation.

• Posture is a leading factor to blood circulation, either good or bad. Talk to a professional to make sure that you sit, walk, and stand properly.

• Caffeine is also not good for blood circulation as it causes anxiety. Change it for green tea or herbal teas in general.

• Alcohol intake must be reduced to a minimum.

• Smoking is bad either actively or passively, so we advise to quit smoking and to stay away from secondhand smoke.

• Add nuts, black pepper, cayenne pepper, seeds, onion, garlic, and ginger to your diet to boost your metabolism and blood circulation.

• Proper shoes are key to keep your legs and feet healthy and to help with blood circulation.

#Actualités de la #cardiologie interventionnelle

Postado em

Olivier VARENNE, Hôpital Cochin, Paris

Un dossier réalisé avec la collaboration d’Olivier Varenne, Hôpital Cochin, Paris.

Quelles sont les causes de FFR sub-optimale après déploiement d’un stent ?

La FFR était utilisée pour évaluer le résultat du stenting. Une valeur FFR < 0,90 a été montrée comme étant associée à plus d’événements cardiovasculaires dans le suivi clinique après stenting.
Ce travail étudiait par OCT les causes associées à une FFR < 0,90 et éventuellement visait à améliorer cette valeur.
Les résultats de cette étude montrent une FFR optimale observée chez 40 % des patients (n = 14) et < 0,90 chez 60 % (n = 21). Chez 61,9 % de ces patients avec FFR < 0,90, le stent était mal déployé. Une optimisation par angioplastie complémentaire permettait d’améliorer la FFR finale (0,80 ± 0,02 à 0,88 ± 0,01 ; p = 0,008). Malgré un bon résultat angiographique, le résultat fonctionnel demeurait sub-optimal chez 60 % des patients évalués par la mesure de la FFR, principalement à cause d’un mauvais déploiement du stent.
L’utilisation de l’OCT permet d’améliorer la valeur finale de la FFR.

Wolfrum M et al. Eurointerv 2018 ; 14 (12) : e1324-31.

Durabilité à long terme des prothèses valvulaires après TAVI

La durabilité des substituts valvulaires utilisés lors des interventions de TAVI reste une préoccupation clinique, en particulier depuis le développement des indications chez des patients à risque intermédiaire.
Ce travail décrit l’incidence des dégénérescences valvulaires entre 5 et 10 ans après la procédure de TAVI. Tous les patients traités par TAVI au Royaume-Uni entre 2007 et 2011 ont été inclus dans un registre national (United Kingdom Transcatheter Aortic Valve Implantation registry). Ce travail comprend les données des patients qui avaient une échographie cardiaque au moins 5 ans après TAVI.
Au total, 241 patients (79,3 ans, 46 % de femmes) avec un suivi médian de 5,8 ans ont été étudiés. Parmi eux 149 patients (64 %) ont été traités par valve autoexpansible et 80 (34,7 %) par valve sur ballon. Le gradient transaortique maximal durant le suivi était plus bas qu’en postprocédure (17,1 vs 19,1 mmHg ; p = 0,002). Il y avait plus de patients avec insuffisance aortique minime ou absente (47,5 % vs 33 %) durant le suivi. Il y a eu 1 seul cas de dégénérescence sévère (0,4 %) 5 ans après l’implantation (insuffisance aortique sévère) et 21 cas de dégénérescence modérée (8,7 %) entre 4,9 et 8,6 ans due à une insuffisance aortique (57 %) ou une sténose aortique (43 %).
Le suivi à moyen/long terme des valves aortiques implantées au cours des procédures de TAVI apparaît donc bon avec une incidence de dégénérescence sévère inférieure à 1 %. Il faut également noter que dans ce registre, 91 % des patients restent indemnes de dégénérescence entre 5 et 10 ans après TAVI.

Blackman DJ et al. J Am Coll Cardiol 2019 ; 73 : 537-45.

Cicatrisation à 1 et 2 mois de l’angioplastie avec stents BuMA™ Supreme ou XIENCE

Le but de cette étude était de comparer la cicatrisation dans les stents XIENCE et dans les nouveaux stents BuMA™ (stents cobalt chrome au sirolimus et polymère résorbable), par OCT à 1 et 2 mois de leur implantation.
L’étude PIONEER II OCT est une étude randomisée multicentrique avec deux cohortes. Les patients de la cohorte 1 avait un OCT à 1 mois (BuMA™ : 16 patients, XIENCE : 15 patients), ceux de la cohorte 2 un OCT à 2 mois (BuMA™ : 21 patients, XIENCE : 23 patients).
Le critère principal, le pourcentage de mailles de stents recouvertes à 1 mois était supérieur dans le groupe BuMA™ (83,8 ± 10,4 % vs 73,0 ± 17,5 % ; psup < 0,037). Dans la cohorte 2, le BuMA™ était non inférieur au XIENCE (80,3 ± 18,3 % vs 73,3 ± 21,3 %). Les scores de cicatrisation étaient meilleurs pour le BuMATM dans la cohorte 1 (32,36 ± 21,59 vs 54,88 ± 34,65 ; p = 0,027), mais pas dans la cohorte 2 (39,86 ± 37,77 vs 53,75 ± 42,84 ; p = 0,25).
Le stent BuMA™ semble avoir une couverture de mailles plus rapide que le XIENCE mais cette différence ne s’observe plus à 2 mois.

Asano T et al. Eurointervention 2018 ; 14 (12) : e1306-15.

Durabilité des substituts valvulaires aortiques après TAVI ou chirurgie

Le but de l’étude NOTION (Nordic Aortic Valve Intervention) était de comparer la durabilité des substituts valvulaires aortiques au cours des remplacements valvulaires chirurgicaux et par TAVI.
Les patients avec sténose aortique ont été randomisés pour être traités par TAVI (n = 139) ou chirurgie (n = 135). Une dégénérescence valvulaire était définie par un gradient transvalvulaire ≥ 20 mmHg, ou une augmentation du gradient moyen de plus de 10 mmHg après le 3e mois ou par une insuffisance aortique intraprothétique après la procédure.
À 6 ans, les taux de mortalité étaient similaires entre les deux techniques (42 ,5 % vs 37,7 % ; p = 0,58). Le taux de dégénérescence était plus important après chirurgie (24,0 % vs 4,8 % ; p < 0,001). Il n’y avait pas de différence en termes d’endocardite (5,9 % vs 5,8 % ; p = 0,95).
Le résultat principal de cette étude est que la dégénérescence valvulaire semble plus fréquente après chirurgie de remplacement aortique qu’après TAVI. Ces données demandent bien évidemment confirmation avec un plus grand nombre de patients inclus.

Søndergaard L et al. J Am Coll Cardiol 2019 ; 73 : 546-53.

Thrombose de valve précoce et tardive après TAVI

La fréquence de survenue d’une thrombose valvulaire après TAVI et ses conséquences cliniques demeurent mal définies.
Dans ce registre multicentrique, OCEAN TAVI, 485 patients ayant bénéficié d’un scanner post-TAVI ont été analysés à 3 jours, 6 mois, 1 an, 2 ans et 3 ans après la procédure. La thrombose de valve était définie comme un épaississement hypodense avec diminution de la mobilité valvulaire. Les patients ne recevaient pas de traitement anticoagulant en cas de détection de thrombose valvulaire. Une thrombose précoce était retrouvée chez 9,3 % des patients. Le gradient moyen à la sortie de l’hôpital était plus haut chez les patients présentant une thrombose valvulaire précoce. Les autres paramètres associés à la thrombose précoce en cas de valve déployée sur ballon étaient une sténose aortique à bas flux et bas gradient, un mismatch important, et une valve de 29 mm. Il n’y avait pas de facteur prédictif en cas de valve autoexpansive.
Les taux de décès, AVC ou insuffisance cardiaque entraînant une hospitalisation à 2 ans étaient de 10,7 % et 16,9 % chez les patients avec et sans thrombose de valve respectivement (p = 0,63).
Une thrombose valvulaire non anticoagulée en post-TAVI ne modifie pas le risque global de MACE.

Yanagisawa R et al. Circ Cardiovasc Interv 2019 ; 12 : e007349.

Traitement par angioplastie des occlusions coronaires chroniques

Les techniques de revascularisation coronaire permettent un haut taux de succès y compris dans les occlusions coronaires chroniques (CTO) les plus compliquées. Cependant, l’évaluation de l’angioplastie dans les CTO demeure surtout le fait de registres.
L’étude de non-infériorité DECISION-CTO a inclus des patients avec au moins une occlusion chronique et les a randomisés entre angioplastie et traitement médical. Les patients ayant d’autres lésions pouvaient être traités par angioplastie. Le critère principal d’évaluation, était un critère composite (décès, infarctus du myocarde, AVC ou tout type de revascularisation). L’étude a été interrompue avant l’inclusion des 1 284 patients prévus. Entre mars 2010 et septembre 2016, seuls 834 patients ont été inclus et traités par angioplastie (n = 417) ou traitement médical seul (n = 398). Le taux de cross over des patients du groupe traitement médical était de 19,6 % dans les 3 jours suivants la randomisation.
Le taux de succès de l’angioplastie était de 91 %. Durant le suivi de 4 ans, il n’y avait pas de différence dans le critère principal d’évaluation entre les patients avec angioplastie et ceux sans (22,3 % vs 22,4 % ; p = 0,86).
L’angioplastie des CTO apparaît faisable et sûre mais sans impact fort sur les critères évalués. L’étude est cependant limitée par une faible puissance et un taux élevé de cross over.

Lee SW et al. Circulation 2019 ; doi.org/10.1161/CIRCULATIONAHA.118.031313.

Comparaison entre valves autoexpansibles et valves déployées sur ballon dans les TAVI

Le but de ce travail était de comparer les résultats cliniques après TAVI par prothèse autoexpansible ou prothèse délivrée par ballon.
Dans ce méta-registre (Collaboration CENTER), les données de deux registres individuels ont été poolées. Le critère principal était la mortalité ou le risque d’AVC à 30 jours. Les valves étaient de plus catégorisées comme ancienne ou nouvelle génération. Le total des 12 381 patients ont été traités par valves autoexpansibles (n = 6 142) ou valves déployées par ballon (n = 6 239). L’âge moyen des patients était de 81 ± 7 ans et le score STS-PROM médian de 6,5 %
À 30 jours, la mortalité n’était pas différente dans les deux groupes 6,2 % vs 5,3 % ; p = 0,10. Un AVC était moins fréquent en cas de valve déployée sur ballon (1,9 % vs 2,6 % ; p = 0,03). Les valves autoexpansibles étaient associées à un triplement du risque de stimulateur cardiaque (7,8 % vs 20,3 % ; p < 0,001). Les nouvelles valves délivrées sur ballon étaient associées à plus de saignements majeurs (4,8 % vs 2,1 % ; p < 0,001).

Vlastra W et al. Eur Heart J 2019 ; 40 (5) : 456-65.

STEMI : efficacité des DES avec polymère résorbable

Les résultats à long terme des stents actifs avec polymère résorbable au biolimus (BES) versus stents nus ont été rapportés dans l’étude randomisée COMFORTABLE (1 157 patients ; BES : n = 575 et BMS : n = 582).
Une imagerie endocoronaire (IVUS ou OCT) était réalisée à l’implantation des stents et à 13 mois chez 103 patients. À 5 ans, les BES étaient associés à une réduction du risque de MACE (RR : 0,56 ; IC 95 % : 0,39-0,79 ; p = 0,001], principalement due à une réduction du risque de réinfarctus dans le vaisseau traité (RR : 0,44 ; IC 95 % : 0,22-0 ,87 ; p = 0,02) et des revascularisations (RR : 0,41 ; IC 95 % : 0,25- 0,66 ; p < 0,001). Les thromboses de stents (2,2 % et 3,9 %) et les thromboses de stents très tardives (1,3 % vs 1,6 % ; p = 0,77) n’étaient pas différentes entre les groupes.
La fréquence de mailles malapposées était similaire dans les deux groupes (BES : 0,08 % vs BMS : 0,02 % ; p = 0,10) mais les mailles non recouvertes étaient plus fréquentes dans les BES (2,1 % vs0,15 % ; p < 0,001).
Dans le STEMI, l’utilisation de stents BES comparativement aux BMS est associée à une réduction des MACE à 5 ans. À 13 mois, la cicatrisation dans les deux types de stents est voisine.

Räber L et al. Eur Heart J 2019 ; doi: 10.1093/eurheartj/ehz074.

Essai randomisé comparant deux types de sondes de FFR : essai COMET

Cette étude visait à comparer deux des sondes de mesure de la FFR disponibles sur le marché en comparant les mesures obtenues de façon simultanée.
Des mesures pairées ont été réalisées chez les 106 patients randomisés en trois groupes selon les sondes de FFR utilisées (BS : Boston Scientific et SJ : St Jude/Abbott), dans l’évaluation de sténoses intermédiaires (BS/BS, SJ/SJ ou SJ/BS). Après égalisation des pressions, des paires de mesures étaient réalisées au maximum de l’hyperhémie (BS/BS n = 90 ; SJ/SJ n = 90 ; SJ/ BS n = 108) et au retrait du cathéter (drift ; BS n = 105 ; SJ n = 103)).
Les moyennes des différences (DS) entre les paires de mesures étaient similaires : BS/BS = 0,0016 (0,023) ; SJ/SJ = 0,002 (0,03) ; SJ/BS = 0,0013 (0,028). Le drift était similaire entre les deux types de sondes : BS = 0,02 (0,01-0,05) ; SJ = 0,02 (0,01-0,04) ; p = 0,14.
Il n’a donc pas été retrouvé de différences entre les deux guides de mesure de la FFR, les guides St Jude/Abbott et les guides COMET de Boston Scientific.

Stables R et al. Eurointervention 2019 ; 14 (15) : e1578-84.

Traitement antithrombotique après SCA ou angioplastie coronaire chez les patients en FA

L’essai factoriel 2 x 2, AUGUSTUS, a randomisé 4 614 patients en fibrillation atriale (FA) lors d’un SCA ou après angioplastie coronaire entre apixaban/AVK et aspirine/placebo en plus d’un inhibiteur P2Y12 et cela pendant 6 mois.
Le critère principal comprenait les saignements majeurs ou non majeurs mais cliniquement significatifs.
Les saignements ont été observés chez 10,5 % des patients sous apixaban et 14,7 % de ceux sous AVK (HR : 0,69 ; IC95 % : 0,58-0,81 ; p < 0,001), et chez 16,1 % des patients sous aspirine et 9,0 % sous placebo (HR : 1,89 ; IC 95 % : 1,59-2,24 ; p < 0,001). De plus, les patients sous apixaban avaient une plus faible incidence de décès ou d’hospitalisations que ceux sous AVK (23,5 % vs 27,4 % ; p = 0,002) et autant d’événements ischémiques. Les patients sous aspirine avaient une incidence de décès et d’hospitalisations et d’événements ischémiques similaires à ceux sous placebo.
Cette étude montre que chez les patients sous anti-P2Y12 en fibrillation atriale avec un SCA ou une angioplastie coronaire récents, un traitement antithrombotique à base d’apixaban sans aspirine fait moins saigner et conduit à moins d’hospitalisations sans augmenter le risque ischémique.

Lopes RD et al. NEJM 2019 ; doi: 10.1056/NEJMoa1817083.


“Publié dans Cath’Lab