JACC:雷诺嗪治疗高风险ICD患者效果不及预期

2018-08-30 吴星 环球医学

2018年8月,美国和加拿大学者在《J Am Coll Cardiol》发表了RAID试验,考察了植入型心律转复除颤器(ICD)的高风险患者使用雷诺嗪的效果。

2018年8月,美国和加拿大学者在《J Am Coll Cardiol》发表了RAID试验,考察了植入型心律转复除颤器(ICD)的高风险患者使用雷诺嗪的效果。

背景:ICD患者中,室性心动过速(VT)和心室颤动(VF)仍然是一个具有挑战性的问题。

目的:本研究旨在确定雷诺嗪是否会降低ICD患者VT、VF或死亡的可能性。

方法:这是一项双盲、安慰剂对照临床试验,研究对象为缺血性或非缺血性心肌病的高风险ICD患者。患者被随机分配到雷诺嗪1000 mg每天两次或安慰剂组中。首要终点是需要适当ICD治疗的VT或VF或死亡,以先发生者为准。预先指定的次要终点包括VT、VF或死亡造成的ICD休克,和需要ICD治疗的复发性VT或VF。

结果:1012名ICD患者中(雷诺嗪组510例,安慰剂组502例),平均年龄为64±10岁,18%为女性。在28±16个月的随访期,有372例(37%)患者发生首要终点,270例(27%)有VT或VF,148例(15%)死亡。接受安慰剂的199名患者(39.6%)和接受雷诺嗪的253名(49.6%)患者停用了设盲研究药物(p=0.001)。对于VT、VF或死亡,雷诺嗪vs安慰剂的风险比为0.84(95% 置信区间[CI],0.67~1.05;p=0.117)。在预先指定的二次分析中,对于复发性VT或VF,随机分配到雷诺嗪的患者ICD治疗风险略有显著降低(风险比[HR],0.70;95% CI,0.51~0.96;p=0.028)。其他预先指定的二次分析中,没有其他显著的治疗效果,包括首要终点的单个组成、不适当的休克、心脏病住院和生活质量。

结论:高风险ICD患者中,雷诺嗪治疗未显著降低首次VT或VF或死亡的发生率。然而,该研究检测首要终点差异的效力不足。在预先指定的次要终点分析中,雷诺嗪与需要ICD治疗的复发性VT或VF的显著降低相关,而没有死亡率增加的证据。(Ranolazine Implantable Cardioverter-Defibrillator Trial[RAID];NCT01215253)

原始出处:

Zareba W, Daubert JP, Beck CA, et.al. Ranolazine in High-Risk Patients With Implanted Cardioverter-Defibrillators: The RAID Trial. J Am Coll Cardiol. 2018 Aug 7;72(6):636-645. doi: 10.1016/j.jacc.2018.04.086.

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    2018-12-10 hbwxf
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    2019-03-06 yilong5287542
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    2018-09-01 仁医06
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    2018-08-30 CHANGE

    疗效只是效果的众多方面之一,还要看对患者的获益,包括生活质量等因素共同决定效果的

    0

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