Related Experiment Video
Updated: Aug 14, 2026

Chronic Ovine Model of Right Ventricular Failure and Functional Tricuspid Regurgitation
Published on: March 17, 2023
[Chronic aortic regurgitation with left ventricular dysfonction]
Sofiane Jerbi1, Faouzi Limayem, Chokri Kortas
1Département de Chirurgie Cardiovasculaire et Thoracique CHU Sahloul Sousse Tunisie.
Insights
Aortic regurgitation patients with left ventricular dysfunction undergoing valve replacement had a 5.8% operative mortality. Survivors showed improved outcomes during a 24-month follow-up, indicating the procedure
Area of Science:
- Cardiology
- Cardiac Surgery
- Cardiovascular Research
Context:
- Aortic regurgitation (AR) is a serious valvular heart disease.
- Left ventricular dysfunction (LVD) complicates AR, increasing surgical risk.
- Patients with severe AR and LVD often present with advanced New York Heart Association (NYHA) functional class (III or IV).
Purpose:
- To evaluate the outcomes of valve replacement surgery in patients with aortic regurgitation and left ventricular dysfunction.
- To assess the perioperative mortality and long-term follow-up results in this high-risk patient cohort.
Summary:
- Fifty-one patients (40 men, 11 women) with AR and LVD (left ventricular ejection fraction [LVEF] < 50%) underwent valve replacement between 1990 and 2002.
- 45% of patients were NYHA class III or IV, indicating significant symptoms.
- Perioperative mortality was 5.8%, primarily due to myocardial failure. Of the survivors, 81.4% were followed for a mean of 24 months post-surgery.
Impact:
- Valve replacement in selected AR patients with LVD is feasible with acceptable perioperative mortality.
- Long-term follow-up suggests potential for improved functional status and survival post-surgery.
- This study provides valuable data for surgical decision-making in complex cardiac cases.
Abstract:
We studied fifty one patients (40 men and 11 women) under going valve replacement from 1990 to 2002 for aortic regurgitation and had left ventricular dysfunction. 45% patients were in class III or IV of New York Heart Association (NYHA). All patients were investigated by echocardiography (left ventricular ejection fraction [LVEF] < 50%) - Peroperative mortality was 5.8% due to myocardial failure. 81.4% of survivors were followed duering a mean period of 24 months (rangis from 3 to 67 months) after valve replacement.
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Mitral Regurgitation II: Clinical Features and Diagnostic Tests
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