Olshansky Brian, Wood Freda, Hellkamp Anne S, Poole Jeanne E, Anderson Jill, Johnson George W, Boineau Robin, Domanski Michael J, Mark Daniel B, Lee Kerry L, Bardy Gust H
Department of Internal Medicine, University of Iowa Hospitals, 4426A JCP, 200 Hawkins Dr, Iowa City, IA 52242, USA.
Am Heart J. 2007 Jun;153(6):1089-94. doi: 10.1016/j.ahj.2007.02.036.
Common locations of death in patients with congestive heart failure (CHF) are unknown. In the SCD-HeFT, mortality of patients with CHF was assessed after randomization to an implantable cardioverter/defibrillator (ICD), amiodarone, or placebo. The aim of this study was to evaluate the location of deaths in SCD-HeFT.
Among SCD-HeFT patients whose location of death was identified, we used logistic regression to assess the relationship of randomized treatment arm and other baseline predictors with the location of death. Cause of death was adjudicated by a therapy-blinded events committee.
In SCD-HeFT, 666 (26%) of 2521 patients died. Of the 604 (91%) for whom location of death was known, 58% died in hospital and 29% died at home. Patients randomized to receive an ICD were less likely to die at home than patients randomized to placebo (P = .002). Fewer patients randomized to ICDs died; even fewer randomized to ICDs died at home. Age, sex, etiology of heart failure, left ventricular ejection fraction, and New York Heart Association functional class were not associated with location of death. Sudden cardiac death represented 52% of all out-of-hospital deaths but in hospital deaths exceeded out-of-hospital deaths.
Deaths in SCD-HeFT, a well-treated CHF population, were most often in hospital. ICDs were associated with lower total and sudden death rates at home and in hospital. Development of methods to identify which patients will not respond to optimal treatment, including an ICD, remain a challenge.
充血性心力衰竭(CHF)患者常见的死亡地点尚不清楚。在“心脏性猝死-心力衰竭试验(SCD-HeFT)”中,对CHF患者随机分配接受植入式心脏复律除颤器(ICD)、胺碘酮或安慰剂治疗后评估其死亡率。本研究的目的是评估SCD-HeFT中患者的死亡地点。
在已确定死亡地点的SCD-HeFT患者中,我们使用逻辑回归来评估随机治疗组以及其他基线预测因素与死亡地点之间的关系。死亡原因由一个对治疗不知情的事件委员会判定。
在SCD-HeFT中,2521例患者中有666例(26%)死亡。在已知死亡地点的604例(91%)患者中,58%在医院死亡,29%在家中死亡。随机接受ICD治疗的患者在家中死亡的可能性低于随机接受安慰剂治疗的患者(P = 0.002)。随机接受ICD治疗的患者死亡人数较少;随机接受ICD治疗且在家中死亡的患者更少。年龄、性别、心力衰竭病因、左心室射血分数和纽约心脏协会心功能分级与死亡地点无关。心脏性猝死占所有院外死亡的52%,但院内死亡人数超过院外死亡人数。
在SCD-HeFT这个接受良好治疗的CHF人群中,死亡最常发生在医院。ICD与较低的在家中和医院的总死亡率及心脏性猝死率相关。开发识别哪些患者对包括ICD在内的最佳治疗无反应的方法仍然是一项挑战。