Introduction

Mass Casualty Incidents (MCI) by Motor Vehicle Crashes (MVCs) are most common type of MCIs. Casualties from MCIs usually require more hospitalization resources. The purpose of this study was to compare the injury characteristics, survivability, and medical resource utilization of casualties from Mass-Casualty Motor Vehicle Crashes (MC-MVCs) and casualties from other (non MCI) MVCs.

Methods

This retrospective cohort study examined a population of 50,321 Israeli casualties hospitalized due to MVCs between 1998 and 2017, of which 595 (1.2%) were admitted from a MC-MVC. Analysis included type of motor vehicle involved and collision circumstances, injury characteristics, hospital resource utilization, and demographics.

Results

The results suggest that most casualties from MC-MVCs were bus passengers who were injured when the vehicle rolled over. Injuries from MC-MVCs were more urgent as almost two times more MC-MVCs casualties were rushed directly from the emergency room into the operating rooms and intensive care units than casualties of regular MVCs. Mortality rate was higher in MC-MVCs compared to regular MVCs (2.69% compared to 1.46%, respectively; p = .013). Severe injuries (ISS≥16) were more frequent in MC-MVCs (23.40% versus 15.53%, p < .0001). Casualties from MC-MVCs required more hospitalization resources, including ICU admission, surgery, and extended lengths of stay. The multivariate analysis demonstrated that mass casualty conditions are predictive of severe injuries even when controlling for age, gender, and collision circumstances.

Conclusions

This study demonstrates that hospitals receiving casualties from MC-MVCs should expect not only a multitude of casualties, rather also the need to treat more urgent and severe injuries, in more body regions per casualty, and expect higher admissions rates to intensive care units and operation rooms under MCI conditions.

中文翻译：

---

大规模伤亡事故中的人员伤亡与其他机动车事故中的人员伤亡是否有所不同？

介绍

机动车碰撞（MVC）造成的大规模伤亡事故（MCI）是最常见的MCI类型。MCI造成的伤亡通常需要更多的住院资源。这项研究的目的是比较大规模伤亡机动车辆事故（MC-MVC）和其他（非MCI）MVC的人员伤亡的伤害特征，生存能力和医疗资源利用。

方法

这项回顾性队列研究调查了1998年至2017年之间因MVC住院的50321名以色列伤亡人口，其中595人（1.2％）来自MC-MVC。分析包括涉及的机动车类型和碰撞情况，伤害特征，医院资源利用率和人口统计。

结果

结果表明，MC-MVC造成的伤亡大多数是公共汽车乘客，他们在车辆翻身时受伤。MC-MVC造成的伤害更为紧急，因为将MC-MVC的人员直接从急诊室送往手术室和重症监护室的伤亡是普通MVC的伤亡近两倍。与常规MVC相比，MC-MVC的死亡率更高（分别为2.69％和1.46％； p = 0.013）。MC-MVC中重伤（ISS≥16）的发生率更高（23.40％对15.53％，p <.0001）。MC-MVC造成的伤亡需要更多的住院资源，包括入住ICU，进行手术和延长住院时间。多变量分析表明，即使在控制年龄，性别和碰撞情况的情况下，大量人员伤亡状况仍可预示严重伤害。

结论

这项研究表明，接受MC-MVC伤亡的医院不仅应该期待众多伤亡，而且还需要在每个伤员的更多身体区域中治疗更多的紧急和重伤，并期望重症监护病房和手术的接诊率更高房间在MCI条件下。