text_1: 研究者 指出 , 在 由 旁观者 实施 除颤 和 由 EMS 实施 除颤 的 患者 中 , 存活 至 出院 的 比例 分别 为 66.5% 和 43.0% ; 此外 , 在 由 旁观者 实施 除颤 的 患者 中 , 有 良好 神经系统 结局 的 出院 患者 比例 高于 由 EMS 实施 除颤 的 患者 ( 57.1% vs . 32.7% ) .
  
text_2: the investigators reported that 66.5 % of patients in whom defibrillation was performed by bystanders , as compared with 43.0 % in whom defibrillation was performed by EMS , survived to hospital discharge ; in addition , hospital discharge with a favorable neurologic outcome was more commonly seen among patients in whom defibrillation had been performed by bystanders than among those in whom defibrillation had been performed by EMS ( 57.1 % vs. 32.7 % ) .
  