Video Experimental Relacionado
Updated: Jan 28, 2026
07:27
Implantation of Total Artificial Heart in Congenital Heart Disease
Published on: July 18, 2014
25.2K
Pacing en el área de la rama de haz en pacientes con cardiopatía congénita biventricular moderada a compleja
Taylor S Howard1, Anna John2, Malena Gutierrez1
1Department of Pediatrics, Lillie Frank Abercrombie Section of Pediatric Cardiology, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas, USA.
Journal of cardiovascular electrophysiology
|January 27, 2026
Resumen
El pacing en el área de la rama de haz (BBAP) es una opción segura y factible para pacientes con cardiopatías congénitas (CC), que mejora eficazmente la sincronía eléctrica. Este estudio demuestra que el BBAP
Área de la Ciencia:
- Cardiología; Cardiología Pediátrica; Electrofisiología
Sus antecedentes:
- La miocardiopatía inducida por pacing causa una morbilidad significativa en pacientes con cardiopatías congénitas (CC). Existen informes limitados sobre la eficacia y seguridad del pacing en el área de la rama de haz (BBAP) en esta población específica de pacientes.
Objetivo del estudio:
- Evaluar la seguridad y viabilidad del pacing en el área de la rama de haz (BBAP) en pacientes con cardiopatía congénita biventricular moderada a compleja. Evaluar el impacto del BBAP en la sincronía eléctrica y la función ventricular en esta cohorte.
Principales métodos:
- Análisis retrospectivo de 18 pacientes con cardiopatía congénita biventricular moderada a compleja que se sometieron a BBAP. Evaluación de las tasas de éxito del procedimiento, duración del QRS (QRSd), tiempo de pacing ventricular derecho V6-RV (V6-RWPT) y parámetros de los electrodos. Evaluación de la fracción de eyección (FE) y el cambio fraccional del área (FAC) antes y después del pacing.
Principales resultados:
- Se logró un BBAP exitoso en 15 de 18 pacientes (83%). Se observó una reducción significativa en el QRSd en los pacientes con pacing para mejorar la sincronía (p=0.01). Los parámetros eléctricos se mantuvieron estables, sin cambios clínicamente significativos en la fracción de eyección del ventrículo izquierdo sistémico.
Conclusiones:
- El pacing en el área de la rama de haz (BBAP) es una estrategia de pacing segura y factible para pacientes con cardiopatía congénita biventricular moderada a compleja. El BBAP logra eficazmente una buena sincronía eléctrica, con parámetros de electrodos estables durante el seguimiento.
Palabras clave:
cardiomiopatíacardiopatía congénitapacing en el área de la rama izquierdamarcapasospediatríaMás Videos Relacionados
12:45Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing
Published on: December 11, 2017
10.9K
07:49Author Spotlight: Investigating HR-Dependent Cardiac Function in Mouse Models Through a Novel Atrial-Pacing Approach
Published on: July 21, 2023
1.9K
Videos de Conceptos Relacionados
01:17Ischemic Heart Disease: Overview
3.4K
Ischemic heart disease occurs when the heart's blood supply dwindles, causing an ominous lack of oxygen and nutrients. This deficiency, stemming from reduced or obstructed blood flow, spells danger, leading to heart muscle damage and dysfunction.
Atherosclerosis, the primary malefactor, orchestrates this dangerous condition. It manifests as the accumulation of fatty deposits, akin to insidious plaques, within arterial walls. As time elapses, these plaques metamorphose, hardening and...
Atherosclerosis, the primary malefactor, orchestrates this dangerous condition. It manifests as the accumulation of fatty deposits, akin to insidious plaques, within arterial walls. As time elapses, these plaques metamorphose, hardening and...
3.4K
01:23Rheumatic Heart Disease I: Introduction
495
Rheumatic heart disease or RHD is a chronic condition that results from rheumatic fever, causing permanent damage to the heart valves.Etiology and Risk FactorsIt primarily arises from rheumatic fever, an inflammatory disease that can develop after untreated or inadequately treated group A streptococcal (GAS) pharyngitis. Streptococcus spreads through direct contact with oral or respiratory secretions. While the bacteria are the causative agents, factors like malnutrition, overcrowding, poor...
495
01:20Rheumatic Heart Disease IV: Nursing Management
318
AssessmentA comprehensive assessment is essential in managing a patient with rheumatic heart disease (RHD). Begin with obtaining a detailed medical history, including recent streptococcal infections, a history of rheumatic fever, or previously diagnosed rheumatic heart disease. Assess the patient for symptoms such as fever, chest pain, widespread joint pain (arthralgia), tachycardia, pericardial friction rub, muffled heart sounds, heart murmurs, peripheral edema, subcutaneous nodules, and...
318
01:21Rheumatic Heart Disease III: Medical Management
339
Rheumatic heart disease (RHD) management can be divided into two main strategies: prevention and long-term management.Primary PreventionPrimary prevention focuses on timely diagnosis and management of group A streptococcal pharyngitis to prevent acute rheumatic fever. The most widely used antibiotic for treating this condition is intramuscular benzathine penicillin G.Acute Rheumatic Fever TreatmentThe primary treatment goal for a patient diagnosed with acute rheumatic fever is to suppress the...
339
01:22Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies
555
The key clinical manifestations of Rheumatic heart disease (RHD) include several distinct cardiac symptoms.Carditis, a hallmark of acute rheumatic fever, involves inflammation of the heart's endocardium, myocardium, and pericardium. Chronic RHD often results from recurrent episodes of carditis. Its symptoms include the following:Murmurs are caused by valvular damage, especially to the mitral and aortic valves. Mitral stenosis or regurgitation is common, with characteristic heart murmurs...
555
02:41Protein Complex Assembly
16.7K
Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types. Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
Many viruses self-assemble into a fully functional unit using the infected host cell to...
Many viruses self-assemble into a fully functional unit using the infected host cell to...
16.7K