Should time from cardiac arrest until call to emergency medical services (EMS) be collected in EMS research?
Should time from cardiac arrest until call to emergency medical services (EMS) be collected in EMS research?
复制标题
在 EMS 研究中是否应该收集从心脏骤停到呼叫紧急医疗服务 (EMS) 的时间？
DOI：
10.1097/00003246-200204001-00001
复制
发表时间：
2002
影响因子：
8.8
通讯作者：
Hallstrom,AlfredP
中科院分区：
文献类型：
--
作者：
Hallstrom,AlfredP
由于在院外心脏骤停的情况下收集从晕倒到拨打911电话的时间的难度和成本，以及此类数据可能固有的潜在噪声和偏差，因此进行了一项模拟研究，以量化此类数据可能对估计从晕倒到除颤时间与生存概率之间关系的影响。在没有偏差的情况下，可能会低估20%到30%的斜率。然而，在存在偏差的情况下，对斜率估计的影响是不可预测的。最可能的偏差往往会导致对斜率的高估。建议，除非能准确无误地获得从晕倒到拨打911的时间，否则可能不值得这样做。
Because of the difficulty and cost of collecting the time from collapse to placing the 911 call in instances of out-of-hospital cardiac arrest and because of the potential noise and bias that might be inherent in such data, a simulation study was conducted to quantitate the impact that such data might have on estimates of the relationship between time from collapse to defibrillation and probability of survival. In the absence of bias, an underestimate of the slope on the order of 20% to 30% might be expected. However, in the presence of bias, the impact on the slope estimate is unpredictable. The most likely bias would tend to cause an overestimate of the slope. It is suggested that unless the time from collapse to placing the 911 call can be obtained accurately and without bias, it is probably not worthwhile to do so.