随机对象研究,以优化低梯度严重大动脉狭窄症的症状患者的治疗,并保留左心室喷射部分 (ROTAS试验)
Elena Galli1, Florent Le Ven2, Augustin Coisne3
1Univ Rennes, CHU Rennes, Inserm, LTSI - UMR 1099, Rennes, France gallelena@gmail.com.
Heart (British Cardiac Society)
|August 29, 2024
概括
在ROTAS试验中,由于早期终止和小样本大小,主动脉置换 (AVR) 对低梯度严重主动脉缩 (AS) 的医疗治疗 (MT) 没有显著的益处. 定期评估对于MT患者至关重要,以确定需要AVR的患者.
科学领域:
- 心脏病学 心脏病学
- 临床试验 临床试验
- 膜心脏疾病 膜心脏疾病
背景情况:
- 症状较低梯度 (LG) 严重的大动脉狭窄症 (AS) 与保存的射出分数的管理仍然不清楚.
- 针对低梯度严重大动脉狭窄症 (ROTAS) 症状患者最佳治疗的随机研究研究研究了治疗选择.
研究的目的:
- 评估一下大动脉置换 (AVR) 是否优于医疗治疗 (MT) 对于症状严重的LG严重AS患者,左心室喷射分数 (LVEF) 保存.
主要方法:
- 患有症状的LG严重AS和保存的LVEF (>50%) 的患者被随机分配1:1到AVR或MT.
- 使用多布他胺应激心声学和/或CT-大动脉评分来证实AS严重程度.
- 主要终点是所有原因死亡和/或心血管住院的复合结果.
主要成果:
- 由于患者招募不足 (n=52),ROTAS研究被提前停止.
- 没有观察到AVR与MT相比具有显著的预后益处 (HR 0.76,95% CI 0.24-2.39,p=0.63).
- 在MT组中,很大一部分 (42%) 的患者开发了AVR或需要交叉的严重症状的标准.
结论:
- 该试验不足以证明AVR和MT之间的显著差异,这是由于样本规模小和随访时间短.
- 建议对MT患者进行定期的临床和心声学评估,以确定那些发展为AVR的迹象的人.
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