Echocardiographic predictors of intraoperative right ventricular dysfunction: a 2D and speckle tracking echocardiography study
Echocardiographic predictors of intraoperative right ventricular dysfunction: a 2D and speckle tracking echocardiography study
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DOI：
10.1186/s12947-019-0161-3
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发表时间：
2019-06-07
影响因子：
1.9
通讯作者：
Kim, Jiwon
中科院分区：
文献类型：
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作者：
Rong, Lisa Q.;Yum, Brian;Kim, Jiwon
研究背景术中或术后右心室功能障碍导致术后预后不良。传统的预测RV功能是有限的，由于心脏手术对传统的RV指数的影响，新的超声心动图技术的承诺，以提高RV功能stratification.MethodsComprehensive超声心动图数据收集前瞻性在择期心脏手术。经食管超声心动图（TEE）定量三尖瓣环平面收缩期偏移（TAPSE）、RV收缩期峰值速度（S）和RV面积变化分数（FAC）。在RV聚焦视图中使用斑点追踪回波量化RV整体和区域（间隔和游离壁）纵向应变。使用两个术中时间点进行比较：胸骨前切开术结果该人群由53名接受心脏手术的患者组成[15.1%仅冠状动脉旁路移植术（CABG），28.3%仅瓣膜，50.9%组合（例如瓣膜/CABG，瓣膜/主动脉移植物）手术]，其中38%在基线时RV功能受损，定义为RV FAC
BackgroundIntraoperative or post procedure right ventricular (RV) dysfunction confers a poor prognosis in the post-operative period. Conventional predictors for RV function are limited due the effect of cardiac surgery on traditional RV indices; novel echocardiographic techniques hold the promise to improve RV functional stratification.MethodsComprehensive echocardiographic data were collected prospectively during elective cardiac surgery. Tricuspid annular plane systolic excursion (TAPSE), peak RV systolic velocity (S), and RV fractional area change (FAC) were quantified on transesophageal echo (TEE). RV global and regional (septal and free wall) longitudinal strain was quantified using speckle-tracking echo in RV-focused views. Two intraoperative time points were used for comparison: pre-sternotomy (baseline) and after chest closure.ResultsThe population was comprised of 53 patients undergoing cardiac surgery [15.1% coronary artery bypass graft (CABG) only, 28.3% valve only, 50.9% combination (e.g. valve/CABG, valve/aortic graft) surgeries], among whom 38% had impaired RV function at baseline defined as RV FAC