Zuern Christine S, Barthel Petra, Bauer Axel
Innere Medizin III (Kardiologie), Eberhard-Karls-Universität Tübingen Tübingen, Germany.
Front Physiol. 2011 Dec 12;2:99. doi: 10.3389/fphys.2011.00099. eCollection 2011.
Heart rate turbulence (HRT) is the baroreflex-mediated short-term oscillation of cardiac cycle lengths after spontaneous ventricular premature complexes. HRT is composed of a brief heart rate acceleration followed by a gradual heart rate deceleration. In high risk patients after myocardial infarction (MI) HRT is blunted or diminished. Since its first description in 1999 HRT emerged as one of the most potent risk factors after MI. Predictive power of HRT has been studied in more than 10,000 post-infarction patients. This review is intended to provide an overview of HRT as risk-predictor after MI.
心率震荡（HRT）是指在自发性室性早搏后，由压力反射介导的心动周期长度的短期振荡。HRT由短暂的心率加速随后逐渐的心率减速组成。在心肌梗死（MI）后的高危患者中，HRT减弱或消失。自1999年首次被描述以来，HRT已成为MI后最有力的危险因素之一。已经在超过10000例心肌梗死后患者中研究了HRT的预测能力。本综述旨在概述HRT作为MI后风险预测指标的情况。
