典型文献
Novel apical-to-femoral rail technique for horizontal aorta in transcatheter aortic valve replacement
文献摘要：
Transcatheter aortic valve replacement (TAVR) has emerged as a viable treatment option for patients with severe aortic stenosis regardless of its surgical risk stratification (Otto et al., 2021). Aortic angulation is usually measured as the angle between the horizon-tal and the aortic annulus planes based on preproced?ural multidetector computed tomography (MDCT) (Al-Lamee et al., 2011). Extremely horizontal aorta, defined as an aortic angulation greater than 70° , is an unfavorable anatomic structure that poses particular technical challenges for TAVR. Abramowitz et al. (2016) have proved that an extremely horizontal aorta increased the risk of procedural complications, such as lower device success rates, more moderate or even severe perivalvular leakage (PVL), and the need for second valve implantation. Because of the long stent frame, inflexibility, and non-steerability, it is challeng-ing to pass the delivery system of self-expanding valves (SEVs) through an extremely horizontal aorta. As a result, patients with an extremely horizontal aorta have always been excluded from the clinical trials of TAVR, and transfemoral (TF)-TAVR with SEV is considered as an"off-label"use of TAVR (Adams et al., 2014;Kaneko et al., 2020). Herein, we present a technically difficult case, in which a patient with an extremely horizontal aorta underwent TF-TAVR with SEV by applying a unique apical-to-femoral rail strategy.
文献关键词：
中图分类号：
作者姓名：
Xianbao LIU;Hanyi DAI;Lihan WANG;Jiaqi FAN;Jian'an WANG
作者机构：
Department of Cardiology,the Second Affiliated Hospital,Zhejiang University School of Medicine,Hangzhou 310009,China;Internal Medicine,Zhejiang University School of Medicine,Hangzhou 310058,China
引用格式：
[1]Xianbao LIU;Hanyi DAI;Lihan WANG;Jiaqi FAN;Jian'an WANG-.Novel apical-to-femoral rail technique for horizontal aorta in transcatheter aortic valve replacement)[J].浙江大学学报（英文版）（B辑：生物医学和生物技术）,2022(07):613-616
A类：
preproced,Lamee,Abramowitz,perivalvular,inflexibility,steerability,SEVs,Kaneko
B类：
Novel,apical,rail,technique,horizontal,aorta,transcatheter,aortic,replacement,Transcatheter,TAVR,has,emerged,viable,treatment,option,patients,severe,stenosis,regardless,its,surgical,risk,stratification,Otto,Aortic,angulation,usually,measured,angle,between,annulus,planes,multidetector,computed,tomography,MDCT,Extremely,defined,greater,than,unfavorable,anatomic,structure,that,poses,particular,challenges,have,proved,extremely,increased,procedural,complications,such,lower,device,success,rates,more,moderate,even,leakage,PVL,need,second,implantation,Because,long,stent,frame,pass,delivery,system,self,expanding,valves,through,result,always,been,excluded,from,clinical,trials,transfemoral,TF,considered,off,label,Adams,Herein,present,technically,difficult,case,which,underwent,by,applying,unique,strategy
AB值：
0.491042
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
