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Fully Endoscopic Mitral Valve Repair with Percutaneous Cannulation of Groin Vessels
Published on: May 26, 2023
Coronary revascularization alone or with mitral valve repair: outcomes in patients with moderate ischemic mitral
Sorel Goland1, Lawrence S C Czer, Robert J Siegel
1Division of Cardiology, Cedars-Sinai Medical Center, Los Angeles, California 90048, USA.
Insights
Coronary artery bypass grafting (CABG) with or without mitral valve repair (MVr) improved patient function. While both approaches showed similar survival, CABG+MVr had higher rates of recurrent mitral regurgitation long-term.
Area of Science:
- Cardiovascular Surgery
- Cardiac Medicine
- Interventional Cardiology
Background:
- Moderate ischemic mitral regurgitation (IMR) often coexists with coronary artery disease.
- Surgical management decisions for IMR remain complex, balancing risks and benefits.
Purpose of the Study:
- To compare outcomes of coronary artery bypass grafting (CABG) alone versus CABG with concomitant mitral valve repair (CABG+MVr) in patients with moderate IMR.
- To evaluate the impact of surgical strategy on mitral regurgitation severity, functional status, and survival.
Main Methods:
- Retrospective analysis of 83 patients with reduced ejection fraction and moderate IMR.
- Comparison of outcomes between 28 patients undergoing CABG+MVr and 55 patients undergoing CABG alone.
- Assessment of mitral regurgitation, functional class, and ejection fraction changes over a mean follow-up of 5.1 years.
Main Results:
- Both CABG and CABG+MVr improved functional class and ejection fraction.
- Early and intermediate-term survival rates were similar between groups (1-year: 96%, 5-year: 81-87%).
- CABG+MVr showed greater initial reduction in mitral regurgitation, but higher rates of late recurrence (22% vs. 47% at late follow-up).
Conclusions:
- Both CABG and CABG+MVr are effective in improving functional class and survival in moderate IMR.
- CABG+MVr may lead to a higher incidence of late recurrent mitral regurgitation compared to CABG alone.
Abstract:
We sought to evaluate retrospectively the outcomes of patients at our hospital who had moderate ischemic mitral regurgitation and who underwent coronary artery bypass grafting (CABG) alone or with concomitant mitral valve repair (CABG+MVr).A total of 83 patients had a reduced left ventricular ejection fraction and moderate mitral regurgitation: 28 patients underwent CABG+MVr, and 55 underwent CABG alone. Changes in mitral regurgitation, functional class, and left ventricular ejection fraction were compared in both groups.The mean follow-up was 5.1 +/- 3.6 years (range, 0.1-15.1 yr). Reduction of 2 mitral-regurgitation grades was found in 85% of CABG+MVr patients versus 14% of CABG-only patients (P < 0.0001) at 1 year, and in 56% versus 14% at 5 years, respectively (P = 0.1), as well as improvements in left ventricular ejection fraction and functional class. One- and 5-year survival rates were similar in the CABG+MVr and CABG-only groups: 96% +/- 3% versus 96% +/- 4%, and 87% +/- 5% versus 81% +/- 8%, respectively (P = NS). Propensity analysis showed similar results. Recurrent (3+ or 4+) mitral regurgitation was found in 22% and 47% at late follow-up, respectively.In patients with moderate ischemic mitral regurgitation, either surgical approach led to an improvement in functional class. Early and intermediate-term mortality rates were low with either CABG or CABG+MVr. However, an increased rate of late recurrent mitral regurgitation in the CABG+MVr group was observed.
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