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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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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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Morphological and Functional Assessment of the Right Ventricle Using 3D Echocardiography
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Morphological and Functional Assessment of the Right Ventricle Using 3D Echocardiography

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The vulnerable right ventricle.

Sushma Reddy1, Daniel Bernstein

  • 1Department of Pediatrics (Cardiology) and the Stanford Cardiovascular Institute, Stanford University, Stanford, California, USA.

Current Opinion in Pediatrics
|August 12, 2015
PubMed
Summary
This summary is machine-generated.

Right ventricle (RV) failure is common in congenital heart disease (CHD) patients. New RV-specific therapies are needed because standard treatments for left ventricle failure are ineffective for RV failure.

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Area of Science:

  • Cardiology
  • Pediatric Cardiology
  • Cardiovascular Research

Background:

  • The right ventricle (RV) is uniquely vulnerable in congenital heart disease (CHD), including tetralogy of Fallot, corrected transposition, single right ventricle, and pulmonary hypertension.
  • Patients with these conditions experience abnormal lifelong cardiac loading, increasing predisposition to right heart failure.
  • Improved surgical techniques for complex RV-affecting CHDs lead to more survivors into adulthood, making RV function preservation critical for long-term outcomes.

Purpose of the Study:

  • To elucidate the distinct responses of the right and left ventricles to stress.
  • To review current understanding of RV adaptation to unique hemodynamic stressors in CHD.
  • To emphasize the necessity of understanding RV failure mechanisms for developing targeted therapeutics.

Main Methods:

  • Literature review focusing on right ventricular adaptation and failure in congenital heart disease.
  • Analysis of studies comparing right and left ventricular responses to stress.
  • Synthesis of current knowledge on hemodynamic stressors and molecular mechanisms in RV failure.

Main Results:

  • Standard heart failure therapies are ineffective for RV failure, indicating divergent molecular pathways compared to left ventricular failure.
  • Growing numbers of children with CHD survive into adulthood due to surgical advancements.
  • Preserving RV function is paramount for enhancing long-term survival and quality of life in adult CHD patients.

Conclusions:

  • Significant differences exist between right and left ventricular responses to cardiac stress.
  • Understanding RV adaptation to hemodynamic challenges in CHD is crucial.
  • Further research into RV failure mechanisms is essential for developing novel, RV-specific therapeutic strategies.