Circulation:ICD植入同时进行消融可改善合并单形性室速的心肌病患者的综合预后

2022-06-28 MedSci原创 MedSci原创

对于各种病因的心肌病患者,ICD 植入时进行早期导管消融可显著降低 VT 复发、心血管住院及死亡的复合结局。

导管消融作为植入式心律转复除颤器 (ICD) 植入时室性心动过速 (VT) 的一线治疗尚未被纳入临床指南。此外,目前仍缺乏评估 VT 消融在非缺血性心肌病患者中的作用的前瞻性研究。非缺血性心肌病的发病率越来越高,在全球范围内都被推荐接受先进的治疗。

该研究是一项国际性、多中心、随机对照的临床试验,招募了180位有 ICD 植入指征的心肌病和单形性 VT 患者,以评估早期一线消融治疗的作用。共121位患者被随机(1:1)分至消融+ICD 组或常规治疗+ICD 组。拒绝行 ICD 治疗的47位患者在单纯消融治疗后进行前瞻性的随访。主要终点是 VT 复发、心血管因素住院或死亡的复合结局。

随机分组患者的平均年龄是55岁(四分位距 46-64),平均左心室射血分数是40%(四分位距 30%-49%);81%的是男性。35%的患者是缺血性心肌病,30%的患者是非缺血性心肌病,还有35%的患者是致心律失常性心肌病。在植入 ICD 前中位 2 天进行了消融(四分位距 前5天-后14天)。


两组患者无复合终点事件生存率

第31天时,消融组和对照组的主要终点发生率分别是49.3%和65.5%(风险比[HR] 0.58,p=0.04)。两组之间的差异主要是消融组的 VT 复发明显减少(HR 0.51,p=0.02)。与对照组相比,在接受消融治疗的患者中观察到 ICD 电击(10.0% vs 24.6%;p=0.03)和抗心动过速起搏(16.2% vs 32.8%;p=0.04)次数均显著降低。


两组无各终点事件的生存率

此外,两组患者的心血管因素住院率(32.0% vs 33.7%,p=0.55)或死亡率(8.9% vs 8.8%,p=0.62)均未观察到显著差异。8.3%的患者发生了消融相关并发症。

总而言之,对于各种病因的心肌病患者,ICD 植入时进行早期导管消融可显著降低 VT 复发、心血管住院及死亡的复合结局。

 

原始出处:

Roderick Tung, et al. First-Line Catheter Ablation of Monomorphic Ventricular Tachycardia in Cardiomyopathy Concurrent With Defibrillator Implantation: The PAUSE-SCD Randomized Trial. Circulation. 2022;145:1839–1849. https://doi.org/10.1161/CIRCULATIONAHA.122.060039.

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    2023-01-12 yilong5287542
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    2022-06-29 jiyangfei
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