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The human heart is a complex organ made up of four chambers: the right and left atria and the right and left ventricles. These internal chambers are separated by partitions known as the interatrial and interventricular septa. The exterior of the heart features a groove known as the coronary sulcus that demarcates the atria from the ventricles, while the anterior and posterior interventricular sulci distinguish between the two ventricles.
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Heart Valves01:16

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The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
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Auscultation, an essential part of a heart examination, is done using a stethoscope. It provides crucial information about heart function and possible heart problems. Due to heart problems, abnormal sounds can be heard during systole or diastole. These sounds include S3 and S4 gallops, opening snaps, systolic clicks, and murmurs.
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Mitral Valve Prolapse I: Introduction01:27

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IntroductionThe mitral valve, one of the heart's four valves, regulates blood flow. These valves have flaps that open and close to direct blood properly through the heart and body. During each heartbeat, the flaps open for blood to pass through and seal shut to prevent backflow. Specifically, the mitral valve opens to allow blood flow from the heart's upper left chamber to the lower left chamber. It then closes securely as the lower left chamber contracts to pump blood to the body, preventing...
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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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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...
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Video Experimental Relacionado

Updated: May 5, 2026

Murine Fetal Echocardiography
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Defectos en el tabique ventricular.

Mary S Minette1, David J Sahn

  • 1Pediatric Cardiology, Oregon Health & Science University, Portland 97239-3098, USA.

Circulation
|November 15, 2006
PubMed
Resumen
Este resumen es generado por máquina.

Los defectos del tabique ventricular (VSD) son problemas cardíacos congénitos comunes. Este artículo detalla sus características clínicas y los enfoques de tratamiento actuales para mejores resultados en los pacientes.

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Área de la Ciencia:

  • Cardiología Cardiología.
  • Cardiología Pediátrica Cardiología pediátrica.
  • Enfermedad cardíaca congénita.

Sus antecedentes:

  • Los defectos del tabique ventricular (VSD) representan la anomalía cardíaca congénita más frecuente.
  • Las SDV exhiben una heterogeneidad significativa en la ubicación anatómica, la manifestación clínica y las lesiones cardíacas asociadas.
  • Comprender la historia natural de los VSD es crucial para una gestión efectiva.

Objetivo del estudio:

  • Revisar exhaustivamente los aspectos clínicos de los defectos del tabique ventricular.
  • Para esbozar las estrategias diagnósticas y terapéuticas actuales para VSDs.

Principales métodos:

  • Revisión de la literatura de estudios clínicos y directrices de manejo para VSDs.
  • Síntesis de la información sobre la clasificación, la presentación y la progresión natural del VSD.
  • Análisis de las modalidades de tratamiento contemporáneas, incluidas las intervenciones médicas y quirúrgicas.

Principales resultados:

  • Las SDV se presentan con diversos escenarios clínicos, que van desde asintomáticos hasta insuficiencia cardíaca grave.
  • Las estrategias de gestión se adaptan en función del tamaño, la ubicación y el impacto hemodinámico de VSD.
  • El diagnóstico precoz y la intervención adecuada son clave para mejorar los resultados.

Conclusiones:

  • Los defectos del tabique ventricular requieren enfoques de manejo individualizados.
  • Las estrategias actuales se centran en la intervención oportuna para prevenir complicaciones y optimizar la salud a largo plazo.
  • La investigación continua es esencial para refinar el tratamiento de VSD y mejorar el pronóstico de los pacientes.