To evaluate early and midterm outcomes of tricuspid ring annuloplasty using three-dimensional (3D) MC3 ring for treatment of functional tricuspid regurgitation (FTR) during mitral valve replacement for rheumatic valve disease. This prospective study included 105 patients who underwent repair for ≥ moderate tricuspid regurgitation (TR) during mitral valve replacement for rheumatic valve disease. Between January 2016 and December 2018, a group of 23 patients who underwent ring annuloplasty with Edward MC3 rings was compared to another group of 82 patients who underwent standard suture (DeVega) repair. The primary outcome was residual TR (≥ moderate TR). During an average follow-up period of 18.84 ± 9.90 months (range 3–33 months), the preoperative grade of TR improved significantly in both groups. The postoperative mean of TR in the MC3 group was significantly lower than that in the DeVega group (0.17 ± 0.49 versus 0.77 ± 0.93, P = 0.004). The rate of TR recurrence (≥ 2+ TR) was significantly higher after MC3 ring annuloplasty (4.3% versus 23.1%, P = 0.03). Freedom from mild TR was 30.5% in the DeVega group and 61% in the ring annuloplasty group (P = 0.007). Freedom from residual TR was 76.8% in the DeVega group and 95.7% in the ring annuloplasty group (P = 0.04). The use of MC3 rings is a safe and effective alternative to DeVega repair for the management of FTR. However, further evaluation of long-term durability is recommended.

中文翻译：

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MC3环瓣环成形术治疗风湿性二尖瓣疾病相关的中度和重度三尖瓣关闭不全的结果

若要评估三尖瓣瓣环成形术的早期和中期结果，使用三维（3D）MC3环治疗二尖瓣置换性风湿性瓣膜疾病期间的功能性三尖瓣关闭不全（FTR）。该前瞻性研究纳入了105例因风湿性瓣膜疾病而进行二尖瓣置换术时接受≥中度三尖瓣关闭不全（TR）修复的患者。在2016年1月至2018年12月之间，将23例使用Edward MC3环进行瓣环成形术的患者与另一组82例进行了标准缝合线（DeVega）修复的患者进行了比较。主要结局是残余TR（≥中度TR）。在平均随访18.84±9.90个月（范围3-33个月）内，两组的术前TR评分均明显改善。MC3组的TR平均值低于DeVega组（0.17±0.49对0.77±0.93，P = 0.004）。MC3环形瓣环成形术后，TR复发率（≥2+ TR）显着更高（4.3％对23.1％，P = 0.03）。在DeVega组中轻度TR的释放率为30.5％，在环形瓣环成形术组中为61％（P = 0.007）。在DeVega组中，残余TR的自由度为76.8％，在环形瓣环成形术组中为95.7％（P = 0.04）。MC3环的使用是DeVega维修FTR的安全有效替代方法。但是，建议进一步评估长期耐久性。DeVega组为轻度TR的比例为30.5％，环瓣环成形术组为61％（P = 0.007）。在DeVega组中，残余TR的自由度为76.8％，在环形瓣环成形术组中为95.7％（P = 0.04）。MC3环的使用是DeVega维修FTR的安全有效替代方法。但是，建议进一步评估长期耐久性。在DeVega组中轻度TR的释放率为30.5％，在环形瓣环成形术组中为61％（P = 0.007）。在DeVega组中，残余TR的自由度为76.8％，在环形瓣环成形术组中为95.7％（P = 0.04）。MC3环的使用是DeVega维修FTR的安全有效替代方法。但是，建议进一步评估长期耐久性。