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Updated: Feb 9, 2026

Chronic Thromboembolic Pulmonary Hypertension and Assessment of Right Ventricular Function in the Piglet
Published on: November 4, 2015
Chronic Thromboembolic Pulmonary Hypertension.
Stuart Jamieson1, G Victor Pretorius1
1Division of Cardiovascular and Thoracic Surgery, University of California, San Diego, California.
Chronic thromboembolic pulmonary hypertension (CTEPH) results from unresolved blood clots causing lung artery obstruction and right heart failure. Pulmonary artery endarterectomy surgery offers a curative treatment option with low mortality at specialized centers.
Area of Science:
- Cardiology
- Pulmonary Medicine
- Vascular Surgery
Background:
- Chronic thromboembolic pulmonary hypertension (CTEPH) arises from incompletely resolved acute pulmonary emboli.
- Fibrotic scar tissue obstructs pulmonary arteries, leading to progressive right heart failure.
- Current medical therapies for CTEPH are primarily supportive.
Purpose of the Study:
- To highlight the pathophysiology of CTEPH.
- To emphasize the curative potential of pulmonary artery endarterectomy.
- To underscore the importance of experienced surgical centers for managing CTEPH.
Main Methods:
- Review of the pathophysiology of chronic thromboembolic pulmonary hypertension.
- Analysis of treatment outcomes for pulmonary artery endarterectomy.
- Evaluation of mortality rates in experienced surgical centers.
Main Results:
- Pulmonary artery endarterectomy is a curative surgical intervention for CTEPH.
- Surgical treatment is associated with low mortality rates when performed at experienced centers.
- Medical management provides supportive care but does not resolve the underlying obstruction.
Conclusions:
- Pulmonary artery endarterectomy is the definitive treatment for chronic thromboembolic pulmonary hypertension.
- Successful surgical outcomes for CTEPH are dependent on surgical expertise and center volume.
- Prompt surgical intervention can prevent irreversible right heart failure in CTEPH patients.
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