功能性二尖瓣反流在二叶式主动脉瓣重度狭窄患者经导管主动脉瓣置换术后的转归分析  

Outcome analysis of functional mitral regurgitation after transcatheter aortic valve replacement in patients with severe bicuspid aortic stenosis

作　　者：林大卫 翁梓珑 张峰 潘文志[1,2] 周达新 LIN Da-wei;WENG Zi-long;ZHANG Feng;PAN Wen-zhi;ZHOU Da-xin(Department of Cardiology,Zhongshan Hospital,Fudan University,Shanghai 200032,China;Shanghai Institute of Cardiovascular Diseases,Shanghai 200032,China)

机构地区：[1]复旦大学附属中山医院心内科,上海200032 [2]上海市心血管病研究所,上海200032

出　　处：《复旦学报（医学版）》2024年第1期34-40,共7页Fudan University Journal of Medical Sciences

基　　金：上海市放射与治疗(介入治疗)临床医学研究中心基金(19MC1910300)。

摘　　要：目的探讨先天性二叶式主动脉瓣(bicuspid aortic valves,BAV)分型与功能性二尖瓣反流(functional mitral regurgitation,FMR)转归的关系及影响FMR改善的因素。方法回顾性分析2018年6月至2022年9月复旦大学附属中山医院收治的接受经导管主动脉瓣置换术(transcatheter aortic valve replacement,TAVR)治疗的BAV重度主动脉瓣狭窄(aortic valve stenosis,AS)合并FMR患者,比较不同BAV患者的基线信息及影像学资料,分析其对FMR改善的影响。根据FMR是否改善分组,应用Logistic回归分析影响FMR转归的因素。结果共纳入100例行TAVR的患者,其中二叶瓣0型49例,二叶瓣1型51例。相比二叶瓣1型患者,二叶瓣0型患者年龄较小[(72.78±6.09)岁vs.(77.00±8.35)岁,P=0.050],男性比例偏低(47%vs.73%,P=0.009),BMI偏高[23.19±2.62)kg/m^(2)vs.(21.99±3.13)kg/m^(2),P=0.041],二叶瓣0型组主动脉瓣关闭不全反流发生率较低(69%vs.92%,P=0.040)。相比非改善组,改善组有更低的冠心病发病率(5%vs.18%,P=0.042),以及更高的肺动脉高压发病率(20%vs.2%,P=0.007);改善组左室舒张末期内径较大[(51.98±6.74)mm vs.(48.04±7.72)mm,P=0.009],主动脉瓣口最大流速更高[(4.86±0.95)cm/s vs.(4.47±0.75)cm/s,P=0.023]。Logistic回归分析结果表明,BAV患者术前肺高压、左室舒张末期内径以及瓣口最大流速是TAVR术后FMR改善的影响因素。结论二叶瓣0型与二叶瓣1型患者TAVR术后FMR改善率无显著差异。对于BAV狭窄患者,术前肺高压、左室舒张末期内径较大、主动脉瓣口最大流速更快与更高的FMR改善率相关。Objective To explore the relationship between the types of bicuspid aortic valves(BAV)and the outcome of functional mitral regurgitation(FMR)and the affecting factors of FMR.Methods From Jun 2018 to Sep 2022,patients with severe BAV aortic valve stenosis(AS)complicated with FMR underwent post transcatheter aortic valve replacement(TAVR)in Zhongshan Hospital,Fudan University were retrospectively analyzed.The baseline information and imaging data of different BAV patients were collected.Logistic regression was used to analyze the factors affecting the outcome of FMR(improvement and non-improvement).Result A total of 100 patients with TAVR were included,including 49 patients with type 0 of BAV and 51 patients with type 1 of BAV.Compared with patients of type 1,patients of type 0 had younger age[(72.78±6.09)y vs.(77.00±8.35)y,P=0.050],lower male ratio(47%vs.73%,P=20.009)higher BMI[(23.19±2.62)kg/m vs.(21.99±3.13)kg/m^(2),P=0.041],and lower incidence of aortic regurgitation(69%vs.92%,P=0.040).Compared with the non-improvement group,the improvement group had a lower incidence of coronary heart disease(5%vs.18%,P=0.042),higher incidence of pulmonary hypertension(20%vs.2%,P=0.007),larger left ventricular diastolic diameter[(51.98±6.74)mm vs.(48.04±7.72)mm,P=0.009]and higher maximum flow velocity[(4.86±0.95)cm/s vs.(4.47±0.75)cm/s,P=0.023]of the aortic valve.The results of Logistic regression analysis showed that preoperative pulmonary hypertension,left ventricular end-diastolic diameter and maximum valvular flow velocity of BAV patients were the potential affecting factors of FMR improvement after TAVR.Conclusion No significant difference was found in FMR improvement between BAV patients of type 0 and type 1 after TAVR.For BAV patients with AS,preoperative pulmonary hypertension,larger left ventricular end-diastolic diameter,and faster aortic valve flow velocity were associated with higher FMR improvement rate.

关 键 词：二叶式主动脉瓣(BAV) 经导管主动脉瓣置换术(TAVR) 功能性二尖瓣反流(FMR) 主动脉 瓣狭窄(AS) 

分 类 号：R542.52[医药卫生—心血管疾病]