Related Experiment Video
Updated: Jun 13, 2025
07:38
Comprehensive Echocardiographic Assessment of Right Ventricle Function in a Rat Model of Pulmonary Arterial Hypertension
Published on: January 20, 2023
3.5K
Pulmonary Hypertension and Right Ventricle: A Pathophysiological Insight.
Mehrshad Namazi1,2, Seyed Parsa Eftekhar1, Reza Mosaed1
1Trauma and Surgery Research Center, AJA University of Medical Sciences, Tehran, Iran.
Clinical Medicine Insights. Cardiology
|September 11, 2024
Summary
Pulmonary hypertension (PH) causes right ventricular (RV) pressure overload, leading to RV hypertrophy and failure, the main cause of death in pulmonary arterial hypertension (PAH). Oxidative stress plays a key role in RV failure development.
Area of Science:
- Cardiology
- Pulmonology
- Pathophysiology
Background:
- Pulmonary hypertension (PH) is a vascular disease defined by high pulmonary artery pressure.
- Sustained PH leads to right ventricular (RV) pressure overload, RV hypertrophy, and eventual RV failure.
Purpose of the Study:
- To elucidate the mechanisms underlying RV structural and functional changes in PH.
- To highlight the role of oxidative stress in RV failure secondary to PH.
Main Methods:
- Review of existing research on PH and RV failure.
- Analysis of proposed pathophysiological mechanisms.
Main Results:
- RV failure is the primary cause of mortality in pulmonary arterial hypertension (PAH).
- Proposed mechanisms include extracellular remodeling, hypertrophy, metabolic shifts, inflammation, apoptosis, autophagy, endothelial-to-mesenchymal transition, neurohormonal imbalance, capillary rarefaction, and ischemia.
- Oxidative stress is significantly implicated in RV failure development.
Conclusions:
- Understanding the interplay of these mechanisms is vital for managing RV failure in PH patients.
- Targeting oxidative stress may be a key therapeutic strategy.
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