Key result
Mitral valve surgery combined with left atrial reduction by posterior wall plication significantly reduced left atrium diameter from 7.0 cm preoperatively to 4.6 cm at six months.
Why the study?
Does left atrial reduction by posterior wall plication combined with mitral valve surgery improve sinus rhythm restoration and reduce left atrial diameter in patients with a dilated left atrium?
Observational (n=38)
No
Does left atrial reduction by posterior wall plication combined with mitral valve surgery improve sinus rhythm restoration and reduce left atrial diameter in patients with a dilated left atrium?
Absolute Event Rate: 4.6% vs 7%
p-value: p=<0.05
Left atrial reduction by posterior wall plication during mitral valve surgery effectively reduces left atrial size and helps restore sinus rhythm without added morbidity.
Left atrial plication with mitral surgery was associated with reduced diameter; leaves open its role in sinus rhythm restoration without randomized data.
Background: We aimed to reduce atrial fibrillation and thromboembolic events by reducing left atrial dilatation via posterior plication technique. Methods: Between May 2003 and January 2009, 38 patients (17 males, 21 females; mean age 53.7±9.9 years; range 44 to 76 years) underwent mitral valve surgery with left atrial reduction by posterior wall plication. Neither bipolar nor unipolar catheter ablation therapy for chronic atrial fibrillation (AF) was performed in this study. We also did not include patients in this study who had undergone radiofrequency ablation therapy for chronic AF. Results: At discharge, 15 patients (39%) were in sinus rhythm. During follow-up, sinus rhythm was restored in 14 patients (37%). Left atrium diameter was significantly reduced from 7.0±1.4 cm preoperatively to 4.6±0.5 cm at six months after surgery. Conclusion: In conclusion, left atrial size reduction is simple, takes less time, and is also effective in maintaining sinus rhythm without adding any additional mortality or morbidity compared to mitral valve surgery alone.
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Gökhan Özerdem (2011) conducted an observational in Mitral valve disease with dilated left atrium (n=38). Mitral valve surgery with left atrial reduction by posterior wall plication vs. Baseline (preoperative) was evaluated on Left atrium diameter at 6 months (p=<0.05). Mitral valve surgery combined with left atrial reduction by posterior wall plication significantly reduced left atrium diameter from 7.0 cm preoperatively to 4.6 cm at six months.
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