ObjectiveTo report the short-term outcomes of a standardized, simplified and reproducible strategy of mitral valvuloplasty (MVP), which was focused on leaflet foldoplasty and anatomic anomalies of congenital mitral regurgitation (MR).MethodsConsecutive 74 patients who underwent MVP by our standardized strategy in our institution from 2016 to 2018 were included retrospectively. There were 30 males and 44 females with a median age of 18.5 (6-146) months and weight of 15.4 (7-51) kg.ResultsAnatomic anomalies of MR included: (1) subvalvular apparatus: 72 (97.3%) patients with mal-connected chordae tendineae, 31 (41.9%) with absent chordae tendineae and 14 (18.9%) with fused or dysplastic papillary muscle; (2) leaflet: 10 (13.5%) patients with cleft of anterior leaflet, 61 (82.4%) with leaflet prolapse including 56 (91.8%) with anterior leaflet prolapse; (3) annulus: 71 (95.9%) patients with annular dilatation. Leaflet foldoplasty was performed in 61 (82.4%) patients with leaflet prolapse. All patients were successfully discharged and 4 (5.4%) patients were with moderate MR. The follow-up time was 22.0 (9.1-41.8) months. During the follow-up period, 3 patients had moderate MR and 1 patient had reoperation for severe MR. All patients were in normal cardiac function with a mean left ventricular ejection fraction of 66.0%±6.1%. In addition, the mean left ventricular end-diastolic dimension was 31.8±6.0 mm, which was significant smaller than that before the operation (t=6.090, P<0.000 1).ConclusionThe standardized leaflet foldoplasty with resection of mal-connected chordae tendineae and posterior annuloplasty technique is safe and feasible with favorable short-term outcomes in MR patients.
ObjectiveTo summarize the reoperation experience for complete atrioventricular septal defect (CAVSD) with severe left atrioventricular valve regurgitation (LAVVR) by standardized mitral repair-oriented strategy.MethodsFrom 2016 to 2019, 11 CAVSD patients underwent reoperation for severe LAVVR by standardized mitral repair-oriented strategy at Fuwai Hospital, including 5 males and 6 females with a median age of 56 (22-152) months. The pathological characteristics of severe LAVVR, key points of repair technique and mid-term follow-up results were analyzed.ResultsThe interval time between the initial surgery and this surgery was 48 (8-149) months. The aortic cross-clamp time was 54.6±21.5 min and the cardiopulmonary bypass time was 107.4±38.1 min, ventilator assistance time was 16.4±16.3 h. All patients recovered smoothly with no early or late death. The patients were followed up for 29.0±12.8 months, and the echocardiograph showed trivial to little mitral regurgitation in 5 patients, little regurgitation in 5 patients and moderate regurgitation in 1 patient. The classification (NYHA) of cardiac function was class Ⅰ in all patients.ConclusionStandardized mitral repair-oriented strategy is safe and effective in the treatment of severe LAVVR after CAVSD surgery, and the mid-term results are satisfied.
ObjectiveTo summarize the clinical outcomes and experience of surgical treatment for patients with complete atrioventricular septal defect (CAVSD) above the optimal age for surgery.MethodsWe retrospectively reviewed clinical data of 163 simple type CAVSD patients less than 7 years who underwent operations in Fuwai Hospital from 2002 to 2013. The patients were divided into a normal group (n=84, including 37 males and 16 females with an average age of 7.6±2.7 months) and an over-age group (n=79, including 30 males and 49 females with an average age of 34.6±19.6 months) according to whether the age was more than 1 year.ResultsThe average aortic cross clamp time (88.3±24.4 min vs. 106.1±35.4 min, P<0.001) and cardiopulmonary bypass time (123.6±31.1 min vs. 142.6±47.1 min, P=0.003) were statistically different between the two groups. During the follow-up period (the normal group 53.3±43.9 months, the over-age group 57.2±48.2 months), there was no statistical difference in all-cause mortality (10.7% vs. 8.9%, P=0.691), the incidence of moderate or severe left atrioventricular valve regurgitation (16.7% vs. 21.5%, P=0.430) and reintervention rate (3.6% vs. 0.0%, P=0.266) between the two groups. No left ventricular outflow tract obstruction and complete atrioventricular block occurred in both groups.ConclusionFor CAVSD children above the optimal age, rational surgical treatments can also achieve satisfying results.
Objective To summarize the reoperation experience for mitral regurgitation with leaflet augmentation in children. Methods From 2018 to 2022, the patients who underwent reoperation for mitral regurgitation with leaflet augmentation after atrioventricular septal defect repair or mitral valve repair in Fuwai Hospital were retrospectively collected. The characteristics of mitral valve disease, key points of surgery and short and mid-term follow-up results were analyzed. Results Finally 24 patients were enrolled, including 6 males and 12 females with an average age of 49.1±29.1 months. The time interval from the primary valve surgery to the reoperation was 24.9±17.0 months. The cardiopulmonary bypass time was 150.1±49.5 min and the aortic clamp time was 94.0±24.2 min. There was no early death. The average follow-up period was 20.3±9.1 months. During the follow-up period, the mortality rate was 4.2%, the rate of reoperation was 4.3%, and the rate of moderate or severe mitral regurgitation was 13.0%. The left ventricular ejection fraction was 62.6%±6.7%. In addition, the mean left ventricular end-diastolic dimension was 35.8±7.8 mm, which was significant smaller than that before the operation (t=4.858, P<0.000 1). Conclusion The application of leaflet augmentation is a safe and effective treatment option with good results in the short and mid-term, which thus provides a good technical option for pediatric patients with recurrent mitral regurgitation.