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Related Concept Videos

Cardiac Catheterization II: Right Heart Catheterization01:21

Cardiac Catheterization II: Right Heart Catheterization

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Right Heart Catheterization: An OverviewRight heart catheterization is an invasive diagnostic procedure that measures right-sided cardiac and pulmonary artery pressures, calculates cardiac output, and identifies intracardiac shunts. It provides detailed hemodynamic data essential for diagnosing and managing various cardiovascular conditions, such as pulmonary hypertension.Access SitesCommon access sites for right heart catheterization include the internal jugular vein in the neck region, the...
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Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
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Left heart catheterization is an invasive diagnostic procedure used to evaluate the function and structure of the left side of the heart. It is generally performed to diagnose and treat cardiovascular conditions such as valve abnormalities, coronary artery disease, and congenital heart defects.Diagnostic and therapeutic purposesLeft heart catheterization serves various diagnostic and therapeutic purposes, including:Assessing coronary artery bypass grafts.Evaluating coronary artery disease in...
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The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
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An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
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Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

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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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Related Experiment Video

Updated: Nov 19, 2025

Biventricular Assessment of Cardiac Function and Pressure-Volume Loops by Closed-Chest Catheterization in Mice
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Importance of Cx43 for Right Ventricular Function.

Kerstin Boengler1, Susanne Rohrbach1, Norbert Weissmann1

  • 1Institute of Physiology, Justus-Liebig University, 35392 Giessen, Germany.

International Journal of Molecular Sciences
|January 27, 2021
PubMed
Summary
This summary is machine-generated.

Connexin 43 (Cx43) plays a crucial role in right ventricular (RV) development and function. This review explores Cx43

Keywords:
connexinmitochondriapulmonary hypertensionright ventricletetralogy of fallot

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Area of Science:

  • Cardiovascular Biology
  • Cellular Physiology
  • Molecular Cardiology

Background:

  • Connexin 43 (Cx43) is the predominant connexin in ventricular tissue, forming gap junctions, hemichannels, and localized within mitochondria.
  • While Cx43's role in the left ventricle is well-defined, its significance in right ventricular (RV) development and dysfunction remains less understood.

Purpose of the Study:

  • To elucidate the importance of Cx43 in the developing heart, particularly concerning RV function.
  • To review the expression and localization of Cx43 in diseased RV conditions like tetralogy of Fallot and pulmonary hypertension.
  • To discuss other connexin molecules involved in RV pathophysiology and potential therapeutic strategies targeting Cx43.

Main Methods:

  • Literature review focusing on Cx43 expression, localization, and function in the developing and diseased RV.
  • Analysis of studies investigating RV hypertrophy, failure, tetralogy of Fallot, and pulmonary hypertension.
  • Exploration of therapeutic interventions related to Cx43 in RV disease.

Main Results:

  • Cx43 is critical for RV development and its alterations are implicated in RV dysfunction.
  • Expression and localization of Cx43 are significantly changed in pathological RV conditions, including tetralogy of Fallot and pulmonary hypertension.
  • Other connexins and Cx43-related pathways are involved in RV pathophysiology, suggesting potential therapeutic targets.

Conclusions:

  • Cx43 is a key determinant of RV development and function, with altered expression contributing to RV disease.
  • Understanding Cx43's role in the RV is essential for developing effective treatments for conditions like pulmonary hypertension.
  • Targeting Cx43 and related pathways offers promising therapeutic strategies for improving RV function in disease.