Curtis Leigh, Salmon Mark, Lyon Richard M
Kent, Surrey and Sussex Air Ambulance Trust, Kent, UK.
Kent, Surrey and Sussex Air Ambulance Trust, Kent, UK; University of Surrey, Surrey, UK.
Air Med J. 2017 Nov-Dec;36(6):307-310. doi: 10.1016/j.amj.2017.06.005. Epub 2017 Aug 14.
This study sought to assess the impact of a helicopter emergency medical service (HEMS) capable of night operations.
This is a retrospective case review of all night HEMS missions attended by a charity air ambulance service in South East England over a 2-year period (October 1, 2013, to October 1, 2015).
During the 2-year trial period, the HEMS service undertook a total of 5,004 missions and attended to 3,728 patients. Of these, 1,373 missions, or 27.4% of the total HEMS activity, were night missions. Night missions increased from year 1 (n = 617) to year 2 (n = 756). A mean of 1.9 missions per night were conducted, resulting in the treatment of 1.3 patients per night. A higher proportion of patients were transported to a major trauma center at night (64% vs. 51%, χ = 41.8, P < .0001). Weather conditions prevented HEMS from responding at night via air for 15% of the night operational hours.
A 2-year trial period of a night HEMS service in South East England showed the predicted activation rate, with a mean of 1.3 patients attended to per night. Patients transported to a major trauma center had a mean Injury Severity Score of 23. Further research is warranted to determine if the night HEMS service conveys a patient outcome benefit.
本研究旨在评估具备夜间作业能力的直升机紧急医疗服务（HEMS）的影响。
这是一项对英格兰东南部一家慈善空中救护服务机构在2年期间（2013年10月1日至2015年10月1日）参与的所有夜间HEMS任务进行的回顾性病例分析。
在2年的试验期内，HEMS服务总共执行了5004次任务，救治了3728名患者。其中，1373次任务（占HEMS总活动的27.4%）为夜间任务。夜间任务从第1年的617次增加到第2年的756次。平均每晚执行1.9次任务，每晚救治1.3名患者。夜间有更高比例的患者被转运至主要创伤中心（64%对51%，χ = 41.8，P <.0001）。天气状况导致HEMS在15%的夜间作业时间内无法通过空中响应。
在英格兰东南部进行的为期2年的夜间HEMS服务试验显示了预期的启动率，平均每晚救治1.3名患者。被转运至主要创伤中心的患者平均损伤严重度评分为23分。有必要进行进一步研究以确定夜间HEMS服务是否能带来患者预后益处。
