McCowan Christy L, Swanson Eric R, Thomas Frank, Handrahan Diana L
Emergency Department Clinical Operations, University of Utah School of Medicine, Salt Lake City, UT 84132, USA.
Air Med J. 2008 Mar-Apr;27(2):78-83. doi: 10.1016/j.amj.2007.10.001.
Mortality differences exist between victims of urban and rural trauma. It is unknown if these differences persist in those patients who survive to HEMS transport. This study examined the in-hospital mortality, hospital LOS, and discharge status of pediatric blunt trauma victims transported by HEMS from rural and urban scenes.
Retrospective review of pediatric (< 17) transports between 1997 and 2001. 130 rural and 419 urban pediatric patients transported to area trauma centers were identified from HEMS and registry records.
Total mileage, flight times, and scene times were significantly longer for rural flights (P < 0.05). There were no significant differences between the groups with regard to age, gender, vitals, hospital/ICU days, and mortality. After controlling for ISS and mechanism of injury, urban patients were 9 times more likely to die compared to rural patients.
Pediatric patients injured in urban areas had shorter total flight and scene times than pediatric patients flown from rural scenes. Higher adjusted in-hospital mortality rates in the urban group were likely a result of faster EMS response and transport times, which minimized out-of-hospital deaths. Factors prior to HEMS arrival may have more impact on the increased mortality rates of rural blunt trauma victims documented nationally.
城市和农村创伤受害者之间存在死亡率差异。对于那些存活至直升机紧急医疗服务(HEMS)转运的患者,这些差异是否持续存在尚不清楚。本研究调查了由HEMS从农村和城市现场转运的小儿钝性创伤受害者的院内死亡率、住院时间和出院状态。
回顾性分析1997年至2001年间小儿(<17岁)的转运情况。从HEMS和登记记录中确定了130名农村和419名城市小儿患者被转运至地区创伤中心。
农村飞行的总里程、飞行时间和现场时间显著更长(P<0.05)。两组在年龄、性别、生命体征、住院/重症监护病房天数和死亡率方面无显著差异。在控制损伤严重度评分(ISS)和损伤机制后,城市患者死亡的可能性是农村患者的9倍。
城市地区受伤的小儿患者的总飞行和现场时间比从农村现场飞行的小儿患者短。城市组调整后的较高院内死亡率可能是由于紧急医疗服务(EMS)响应和转运时间更快,从而将院外死亡降至最低。在全国记录的农村钝性创伤受害者死亡率增加方面,HEMS到达之前的因素可能产生更大影响。