RESUMEN
BACKGROUND: The presence of a trauma surgeon during patient resuscitations is required at most American College of Surgeons-verified trauma centers despite little evidence showing improved patient outcomes in the less-than-critically injured (Tier 2) trauma patients. This study was designed to identify the impact of extending required surgeon response times on outcomes in tier 2 trauma patients. METHODS: An American College of Surgeons-verified level 2 trauma center extended the maximum allowed surgeon response time for tier 2 activations from 60 min to 120 min on November 1, 2011. Surgeon response time and patient outcomes of the retrospective control group (January 1, 2008-October 31, 2011) were then compared with the prospective test group (November 1, 2011-December 31, 2014). Primary outcomes included mortality and hospital length of stay (HLOS). Secondary outcomes were emergency department length of stay, and time from ED arrival to CT scan. A subset analysis of all patients evaluated by a surgeon within 60 min of arrival versus those evaluated by a surgeon after 60 min was also performed. RESULTS: The control and test groups were composed of 757 and 792 patients, and their mean injury severity score was 9.0 and 6.0, respectively. Emergency department length of stay showed a statistically significant increase of 12 min, whereas HLOS was unchanged throughout the study. Mortality was not significantly different between the groups. Subset analysis revealed a median surgeon arrival time of 15 min in the <60-min group and 85 min in the >60-min group, whereas the injury severity score, HLOS, and mortality were not significantly different between these subsets. No correlation existed between these outcomes and surgeon arrival time. CONCLUSIONS: Doubling required surgeon response time in tier 2 trauma patients does not produce negative outcomes in this patient group. Mandatory surgeon response times in similar patient groups can be re-evaluated to allow for greater flexibility of a limited surgeon workforce while still providing safe care.