[Surgical ventricular reconstruction for ischemic cardiomyopathy]
Koichi Toda1, Tomoyuki Fujita, Yusuke Shimahara
1Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center, Suita, Japan.
Insights
Surgical ventricular reconstruction (SVR) in ischemic cardiomyopathy (ICM) patients improved left ventricular geometry and function. Long-term follow-up is crucial for sustained benefits after SVR.
Area of Science:
- Cardiology
- Cardiac Surgery
- Medical Devices
Context:
- Ischemic cardiomyopathy (ICM) presents significant surgical challenges due to advanced ventricular remodeling.
- Surgical ventricular reconstruction (SVR) is a potential therapeutic option for ICM patients.
Purpose:
- To evaluate the long-term clinical and echocardiographic outcomes of SVR in patients with ICM.
- To assess the efficacy of SVR in restoring left ventricular geometry and function.
Summary:
- 34 ICM patients with ejection fraction <35% underwent SVR between 1999-2009.
- Hospital mortality was 6%, with a 5-year survival rate of 70%.
- SVR significantly reduced left ventricular end-systolic volume and improved ejection fraction, with sustained benefits up to 3 years.
Impact:
- SVR effectively restores left ventricular geometry and function in ICM patients.
- Optimized medical treatment combined with SVR is essential for long-term patient management.
- This study highlights the durable benefits of SVR in improving cardiac structure and function.
Objectives:
Ischemic cardiomyopathy (ICM) associated with advanced ventricular remodeling remains a surgical challenge. The purpose of this study was to evaluate long-term clinical and echocardiographic results following surgical ventricular reconstruction (SVR).
Methods:
From 1999 to 2009, 34 consecutive ICM patients with ejection fraction less than 35% underwent SVR. Cardiac catheterization was examined before and after surgery. Clinical follow-up and serial echocardiographic examinations were performed at baseline, 1 month, and annually thereafter.
Results:
Hospital mortality was 6% (n = 2) and the overall survival rate after 5 years was 70%. Angiogram findings revealed a reduction of left ventricular end-systolic volume index (112 +/- 47 ml/m2 vs. 62 +/- 28 ml/m2, p < 0.05) and improved left ventricular ejection fraction at 1 month after SVR. Serial echocardiogram findings demonstrated that significant reduction of left ventricular dimension was maintained along with well-controlled mitral regurgitation until 3 years after SVR.
Conclusion:
In ICM patients, SVR restored left ventricular geometry and functions. Long-term followup with optimized medical treatment is necessary after SVR.
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