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Updated: Jun 20, 2026

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Published on: January 16, 2026
[Structural and functional changes of postoperative small left ventricle patients].
Sheng-Li Jiang1, Chang-Qing Gao, Bo-Jun Li
1Department of Cardiovascular Surgery, General Hospital of People's Liberty Army, People's Liberty Army Cardiac Surgery Institute, Beijing, China. jiangsl301@sina.com
Patients with small left ventricles undergoing valve surgery require careful management of low-output syndrome. Early postoperative left ventricular dimensions do not significantly expand after valvular operations.
Area of Science:
- Cardiac Surgery
- Cardiology
- Echocardiography
Context:
- Small left ventricle presents unique challenges in valvular surgery.
- Perioperative management and early postoperative structural changes are critical for patient outcomes.
Purpose:
- To analyze perioperative features of surgical treatment in valvular patients with small left ventricles.
- To investigate early postoperative structural changes in the left ventricle and their correlation with cardiac function.
Summary:
- This study examined 51 patients with small left ventricles undergoing mitral valve replacement.
- Perioperative mortality was 3.9%, with 27.5% experiencing low-output syndrome. Early postoperative left ventricular dimensions showed no significant expansion, and contractility improved slightly without statistical significance.
Impact:
- Highlights the importance of managing low-output syndrome in this patient population.
- Suggests that left ventricular dimensions remain unchanged in the early postoperative period following valvular surgery.
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