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Right ventricular function and residual mitral regurgitation after left ventricular assist device implantation determines the incidence of right heart failure.

左心室辅助装置植入后的右心室功能和残余二尖瓣反流决定了右心衰竭的发生率。

  • 影响因子:1.52
  • DOI:10.1016/j.jtcvs.2019.03.089
  • 作者列表:"Tang PC","Haft JW","Romano MA","Bitar A","Hasan R","Palardy M","Wu X","Aaronson KD","Pagani FD
  • 发表时间:2020-03-01
Abstract

BACKGROUND:The effect of significant mitral regurgitation (MR) on outcomes after continuous flow left ventricular assist device (cfLVAD) implantation remains unclear. METHODS:We performed a retrospective review of prospectively collected data from 159 patients with preoperative severe MR who underwent cfLVAD implantation (2003-2017). Two-step cluster analysis using the log-likelihood distance for post-cfLVAD implantation parameters, which included right ventricular (RV) dysfunction, MR severity, and tricuspid regurgitation (TR) severity. Post-cfLVAD implantation echocardiographic parameters were obtained within the first month. RESULTS:Cluster analysis resulted in 3 groups. Group 1 (n = 67) had mild or less MR with moderate-severe RV dysfunction (RVD). Group 2 (n = 43) had moderate-severe MR with moderate-severe RVD. Group 3 (n = 49) had moderate MR with mild RVD. Group 2 had the largest proportion with Interagency Registry for Mechanically Assisted Circulatory Support score of 1 (30.2%) and 2 (41.9%). They were more likely to undergo temporary mechanical circulatory support (18.6%) and tricuspid valve procedure (62.8%). Group 2 had the highest rate of stroke (30.2%; P = .02), hemolysis (39.5%; P = .01), device thrombosis (30%; P = .01), and worst survival (46.5%; P = .01). Survival at 5 years for groups 1, 2, and 3 were 56.0%, 17.6%, and 55.8%. Regression analysis of the entire population showed that greater MR severity after cfLVAD was associated with RV failure (P < .05; odds ratio, 1.6) and RV assist device use (P = .09; odds ratio, 1.6). After excluding tricuspid valve repairs, MR severity had a positive correlation with TR severity (R = 0.33; P < .01). CONCLUSIONS:After cfLVAD implantation, moderate-severe MR and RVD predicted RV failure. Patients with preoperative moderate-severe MR and TR coupled with moderate-severe RVD might benefit the most from mitral and tricuspid valve intervention.

摘要

背景: 显著的二尖瓣反流 (MR) 对连续血流左心室辅助装置 (cfLVAD) 植入后结果的影响仍不清楚。 方法: 我们对 159 例接受cfLVAD植入的术前重度MR患者 (2003-2017) 前瞻性收集的数据进行了回顾性分析。使用cfLVAD植入后参数的对数似然距离进行两步聚类分析,包括右心室 (RV) 功能障碍、MR严重程度和三尖瓣反流 (TR) 严重程度。在第一个月内获得cfLVAD植入后超声心动图参数。 结果: 聚类分析结果为 3 组。组 1 (n = 67) 有轻度或更少的MR伴中重度RV功能障碍 (RVD)。第 2 组 (n = 43) 为中重度MR伴中重度RVD。组 3 (n = 49) 为中度MR伴轻度RVD。组 2 在机械辅助循环支持评分的机构间登记中所占比例最大,分别为 1 (30.2%) 和 2 (4 1.9%)。他们更可能接受临时机械循环支持 (18.6%) 和三尖瓣手术 (62.8%)。2 组脑卒中产生率最高 (30。2%; P =。0 2) 、溶血 (39.5%; P = .01) 、器械血栓形成 (30%; P = .01) 和最差生存率 (46.5%; P = .01)。存活 5 年组 1 、 2 和 3 分别为 5 6.0%,1 7.6%,5 5.8%.对整个人群的回归分析显示,cfLVAD后更大的MR严重程度与RV失败相关 (P <。05; 优势比 (odds ratio,1.6) 和RV辅助装置使用 (P = .09; 优势比,1.6)。排除三尖瓣修复后,MR严重程度与TR严重程度呈正相关 (R = 0.33; P <.01)。 结论: cfLVAD植入后,中重度MR和RVD预测RV失败。术前中-重度MR和TR合并中-重度RVD的患者可能从二尖瓣和三尖瓣介入治疗中获益最大。

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影响因子:1.52
发表时间:2020-03-01
DOI:10.1016/j.jtcvs.2019.03.089
作者列表:["Tang PC","Haft JW","Romano MA","Bitar A","Hasan R","Palardy M","Wu X","Aaronson KD","Pagani FD"]

METHODS:BACKGROUND:The effect of significant mitral regurgitation (MR) on outcomes after continuous flow left ventricular assist device (cfLVAD) implantation remains unclear. METHODS:We performed a retrospective review of prospectively collected data from 159 patients with preoperative severe MR who underwent cfLVAD implantation (2003-2017). Two-step cluster analysis using the log-likelihood distance for post-cfLVAD implantation parameters, which included right ventricular (RV) dysfunction, MR severity, and tricuspid regurgitation (TR) severity. Post-cfLVAD implantation echocardiographic parameters were obtained within the first month. RESULTS:Cluster analysis resulted in 3 groups. Group 1 (n = 67) had mild or less MR with moderate-severe RV dysfunction (RVD). Group 2 (n = 43) had moderate-severe MR with moderate-severe RVD. Group 3 (n = 49) had moderate MR with mild RVD. Group 2 had the largest proportion with Interagency Registry for Mechanically Assisted Circulatory Support score of 1 (30.2%) and 2 (41.9%). They were more likely to undergo temporary mechanical circulatory support (18.6%) and tricuspid valve procedure (62.8%). Group 2 had the highest rate of stroke (30.2%; P = .02), hemolysis (39.5%; P = .01), device thrombosis (30%; P = .01), and worst survival (46.5%; P = .01). Survival at 5 years for groups 1, 2, and 3 were 56.0%, 17.6%, and 55.8%. Regression analysis of the entire population showed that greater MR severity after cfLVAD was associated with RV failure (P < .05; odds ratio, 1.6) and RV assist device use (P = .09; odds ratio, 1.6). After excluding tricuspid valve repairs, MR severity had a positive correlation with TR severity (R = 0.33; P < .01). CONCLUSIONS:After cfLVAD implantation, moderate-severe MR and RVD predicted RV failure. Patients with preoperative moderate-severe MR and TR coupled with moderate-severe RVD might benefit the most from mitral and tricuspid valve intervention.

影响因子:2.15
发表时间:2020-03-01
DOI:10.1007/s40520-019-01228-0
作者列表:["Bo M","Bergamo D","Calvi E","Iacovino M","Falcone Y","Grisoglio E","Salizzoni S"]

METHODS:BACKGROUND:Among elderly with severe aortic stenosis (AS), Comprehensive Geriatric Assessment (CGA) originally contributed to address to transcatheter aortic valve implantation (TAVI) patients not suitable to surgical aortic valve replacement(SAVR). Nevertheless, TAVI has recently been proposed also in lower surgical risk patients. AIMS:To evaluate predictors of TAVI procedure and clinical outcomes among these patients. METHODS:For each patient ≥ 65 years with severe AS referring to our Cardiac Surgery Division, CGA was performed, including functional and cognitive status, comorbidity burden, frailty, nutritional status, gait speed, hand-grip strength and number of medications. Surgical risk was evaluated according to the Society of Thoracic Surgeons (STS) score (low-risk < 4%). Post-procedural outcomes (30-day survival and post-procedural complications) were obtained by medical records and a one-year follow-up assessed survival, and functional and cognitive performance. RESULTS:Among 154 subjects (mean age 82.9 years), 52 were at low-risk according to STS score. 32 patients were addressed to TAVI, 20 to SAVR. Variables significantly associated with TAVI-approach were lower gait speed (p 0.030) and higher number of medications (p 0.015). Short and long-term outcomes did not differ between groups. DISCUSSION:Among CGA variables, gait speed and number of medications were associated with the decision to perform TAVI instead of SAVR, even in patients at low surgical risk. 30-day and one-year survival and one-year functional and cognitive decline were similar between groups, despite a relevant prevalence of frailty in the TAVI group. CONCLUSIONS:We suggest that gait speed and number of medications should be considered in selecting appropriate candidates to TAVI among low surgical risk patients.

心脏瓣膜病方向

人的心脏有四个瓣膜,分别为二尖瓣、三尖瓣、主动脉瓣和肺动脉瓣。心脏瓣膜病就是指二尖瓣、三尖瓣、主动脉瓣和肺动脉瓣的瓣膜因风湿热、黏液变性、退行性改变、先天性畸形、缺血性坏死、感染或创伤等出现了病变,影响血流的正常流动,从而造成心脏功能异常,最终导致心力衰竭的单瓣膜或多瓣膜病变。随着人口老龄化加重,老年性瓣膜病以及冠心病、心肌梗死后引起的瓣膜病变也越来越常见。

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