Heart:无症状主动脉瓣狭窄患者心源性猝死

2020-08-01 MedSci原创 MedSci原创

无症状轻度至中度AS患者的SCD少见,与左心室肥厚密切相关,但与狭窄程度无关。

近日,心脏病领域权威杂志Heart上发表了一篇研究文章,研究人员回顾性地分析了辛伐他汀和依泽替米贝在主动脉瓣狭窄(SEAS)研究中的结局数据,以评估无症状主动脉瓣狭窄(AS)患者队列中心源性猝死(SCD)的发生率和潜在危险因素。

在SEAS纳入的1873例患者中,研究人员分析了1849例(99%)临床、超声心动图和随访数据可用的轻度至中度AS患者(基线时射血速度为2.5–4.0μm/s)。手术时对接受主动脉瓣置换的患者进行审查。

在46.1±14.6个月的总体随访期间,平均28.3±16.6个月后,有27例无症状患者发生了SCD(1.5%)。年事件发生率为0.39%/年。事件发生前的最后一次超声心动图检查发现22例轻度至中度狭窄患者,5例SCD病人存在严重狭窄(射血速度>4μm/s)。诊断为严重狭窄后的年事件发生率为0.60%/年,而未进展为严重狭窄的患者为0.46%/年(p=0.79)。与存活的患者相比,SCD患者年龄较大(p=0.01),左心室质量指数较高(LVMI,p=0.001),而体重指数较低(BMI,p=0.02)。Cox回归分析确定了年龄(HR为1.06,95%CI为1.01至1.11/年,p=0.02)、LVMI增加(每增加10g/m2的HR为1.20,95%CI为1.10至1.32,p<0.001)和BMI较低(HR为0.87,95%CI为0.79至0.97/kg/m2,p=0.01)作为SCD的独立危险因素。

由此可见,无症状轻度至中度AS患者的SCD少见,与左心室肥厚密切相关,但与狭窄程度无关。

原始出处:

Jan Minners.et al.Sudden cardiac death in asymptomatic patients with aortic stenosis.heart.2020.https://heart.bmj.com/content/early/2020/07/31/heartjnl-2019-316493

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    2020-08-03 zhaojie88
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    2020-08-03 slcumt
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    2020-08-03 mhm295

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