Stone C K, Hunt R C, Sousa J A, Whitley T W, Thomas S H
Department of Emergency Medicine, East Carolina University School of Medicine, Greenville, NC 27858.
Air Med J. 1994 May;13(5):159-62. doi: 10.1016/S1067-991X(05)80106-3.
The purpose of this study was to compare the outcome of interhospital transported cardiac patients for whom bias in selecting transport mode was removed due to helicopter unavailability.
Patients with the diagnosis of unstable angina or myocardial infarction who underwent transport by ground only because helicopter transport was not available, were compared to patients transported by helicopter. Patients were matched by gender and referring hospital. Ninety-six patients were studied and both groups were comparable in age, diagnosis, Killip classification, treatment with thrombolytics and post-transport procedures.
There were no statistically significant differences between the groups for mean ICU days (5.3 air vs. 3.5 ground) and mean hospital days (9.9 vs. 8.2, respectively). No differences were detected in the proportions of deaths within 72 hours of arriving at the receiving institution (1/48 air vs. 0/48 ground), but air transportation was associated with more total deaths (9/48 vs. 1/48, respectively).
It appears that the interhospital transport of cardiac patients by air offers no outcome advantage over ground transport.
本研究的目的是比较因无法使用直升机而消除了转运方式选择偏差的院际转运心脏病患者的结局。
将仅因无法使用直升机而通过地面转运的不稳定型心绞痛或心肌梗死诊断患者与通过直升机转运的患者进行比较。患者按性别和转诊医院进行匹配。共研究了96例患者，两组在年龄、诊断、Killip分级、溶栓治疗及转运后程序方面具有可比性。
两组在平均ICU住院天数（空中转运为5.3天，地面转运为3.5天）和平均住院天数（分别为9.9天和8.2天）方面无统计学显著差异。到达接收机构72小时内的死亡比例无差异（空中转运48例中有1例死亡，地面转运48例中无死亡），但空中转运的总死亡人数更多（分别为9/48和1/48）。
心脏病患者的院际空中转运似乎在结局方面并不优于地面转运。
