Department of Emergency Medicine, Trauma and Critical Care Center, Teikyo University School of Medicine, Tokyo, Japan.
Circ J. 2010 Jul;74(7):1339-45. doi: 10.1253/circj.cj-09-0928. Epub 2010 May 27.
External chest compression is considered to play a significant role in cardiopulmonary resuscitation (CPR), but during a rhythm check, chest compressions must be discontinued to avoid artifacts. A new multifunctional electrocardiograph (ECG; Radarcirc) has been developed for use in clinical settings.
The performance of the Radarcirc and conventional ECG (CoECG) during CPR was compared in a single-center, non-randomized, sequential self-controlled study. CPR was performed on 41 out-of-hospital cardiac arrest patients. Cardiac rhythm with and without chest compressions during a rhythm check was measured using leads I and II. When the rhythm changed during CPR, it was measured as another waveform. Fifty ECG recordings were obtained, of which 27 were asystole, 18 pulseless electrical activity, and 5 ventricular fibrillation (VF). The area under the receiver-operating characteristic curve (AUC) for VF was 0.448 (95% confidence interval (CI) 0.274-0.622) for lead II of the CoECG, and 0.797 (95%CI 0.684-0.910) for lead II of the Radarcirc. The AUC for VF was 0.422 (95%CI 0.219-0.626) for lead I of the CoECG, and 0.987 (95%CI 0.975-1.00) for lead I of the Radarcirc.
Diagnoses based on the data from Radarcirc were more accurate in predicting rhythm during chest compressions than those based on data from the CoECG.
胸外按压被认为在心肺复苏（CPR）中起着重要作用，但在进行节律检查时，必须停止按压以避免产生伪影。一种新的多功能心电图（ECG；Radarcirc）已经开发出来用于临床。
在一项单中心、非随机、连续自身对照研究中比较了 Radarcirc 和常规心电图（CoECG）在 CPR 中的性能。对 41 例院外心脏骤停患者进行了 CPR。使用导联 I 和 II 测量有和没有按压时节律检查期间的心脏节律。当 CPR 期间节律发生变化时，将其测量为另一种波形。获得了 50 个 ECG 记录，其中 27 个为窦性停搏，18 个为无脉性电活动，5 个为室颤（VF）。CoECG 导联 II 的 VF 受试者工作特征曲线（ROC）下面积（AUC）为 0.448（95%置信区间（CI）0.274-0.622），Radarcirc 导联 II 的 AUC 为 0.797（95%CI 0.684-0.910）。CoECG 导联 I 的 VF AUC 为 0.422（95%CI 0.219-0.626），Radarcirc 导联 I 的 AUC 为 0.987（95%CI 0.975-1.00）。
基于 Radarcirc 数据的诊断在预测按压期间节律方面比基于 CoECG 数据的诊断更准确。
