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Videos de Conceptos Relacionados

Mitral Regurgitation I: Introduction01:20

Mitral Regurgitation I: Introduction

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Mitral regurgitation is characterized by the backward circulation of blood from the left ventricle to the left atrium during systole, a phase of the cardiac cycle when the heart contracts and pumps blood out of the chambers. This abnormal flow occurs primarily due to the dysfunction of the mitral valve or its supporting structures, which include the mitral leaflets, chordae tendineae, annulus, and papillary muscles.Etiology and Mechanisms:Primary Mitral Regurgitation: This type arises from...
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Heart Failure VI: Adjunct Therapies01:22

Heart Failure VI: Adjunct Therapies

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Additional therapies for treating patients with heart failure (HF) may include procedural interventions, supplemental oxygen, the management of sleep disorders, and nutritional therapy.Procedural InterventionsImplantable Cardioverter-Defibrillator: For patients at risk of life-threatening arrhythmias due to severe left ventricular dysfunction, an Implantable Cardioverter-Defibrillator (ICD) can detect and terminate these arrhythmias, preventing sudden cardiac death and improving survival rates.
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Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

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Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...
34
Cardiomyopathy II: Dilated Cardiomyopathy01:30

Cardiomyopathy II: Dilated Cardiomyopathy

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Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
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Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

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Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
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Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

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Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
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Prediction of peri-procedural cerebrovascular accidents in patients with severe peripheral artery disease undergoing transcatheter aortic valve replacement.

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Temporal trends in mitral edge-to-edge repair for primary mitral regurgitation.

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Video Experimental Relacionado

Updated: Sep 9, 2025

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La derivación auricular para la insuficiencia cardíaca

Alexander M Spring1, Andrea Scotti1, Julio Echarte-Morales1

  • 1Montefiore-Einstein Center for Heart and Vascular Care, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York, USA.

Structural heart : the journal of the Heart Team
|September 2, 2025
PubMed
Resumen

La derivación auricular ofrece un nuevo tratamiento para pacientes con insuficiencia cardíaca avanzada que no responden a las terapias estándar. Esta revisión cubre la fisiología, los dispositivos y los ensayos de derivación auricular en todo el espectro de HF.

Palabras clave:
Desviación auricularTerapia con el dispositivoInsuficiencia cardíaca con fracción de eyección conservadaInsuficiencia cardíaca con fracción de eyección reducidaInsuficiencia cardíaca intervencionistaVasculopatía pulmonar

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Área de la Ciencia:

  • Cardiología
  • Dispositivos médicos
  • Tratamiento de la insuficiencia cardíaca

Sus antecedentes:

  • Las terapias farmacológicas para la insuficiencia cardíaca (IC) tienen limitaciones en el manejo de etapas avanzadas.
  • La carga sintomática en HF avanzada sigue siendo una necesidad clínica no satisfecha significativa.
  • La derivación auricular ha surgido como un nuevo enfoque terapéutico para los pacientes con IC.

Objetivo del estudio:

  • Revisar la fisiología, los dispositivos y los ensayos clínicos que dan forma al campo de la derivación auricular.
  • Explorar la aplicación de la derivación auricular en todo el espectro de la HF.
  • Detallar los diferentes tipos de derivaciones interatrial y sus posibles beneficios y limitaciones clínicas.

Principales métodos:

  • Revisión de la literatura existente sobre la derivación auricular en la insuficiencia cardíaca.
  • Análisis de los principios fisiológicos subyacentes a las terapias de derivación auricular.
  • Examen de varias estrategias de derivación interatrial basadas en dispositivos y sin implante.

Principales resultados:

  • La derivación auricular está evolucionando de una terapia para la IH diastólica a una aplicable en todo el espectro de la IH.
  • Se están investigando derivaciones interatrial basadas en dispositivos, derivaciones sin implante y derivaciones sinusales coronarias.
  • Estas derivaciones tienen como objetivo proporcionar un beneficio clínico en poblaciones específicas de pacientes con HF.

Conclusiones:

  • La derivación auricular representa una nueva terapia prometedora para la insuficiencia cardíaca avanzada sintomática.
  • Comprender la fisiología y las variaciones del dispositivo es crucial para optimizar la selección del paciente.
  • Se necesitan ensayos adicionales para establecer completamente la eficacia y las limitaciones de varias técnicas de derivación auricular.