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Can Planned Traffic Patterns Improve Survival Among the Injured During Mass Casualty Motorcycle Rallies?
Journal of Surgical Research 2019 Februrary
BACKGROUND: Mass casualty events are infrequent and create an abrupt surge of patients requiring emergency medical services within a brief period. We hypothesize that implementation of a controlled "traffic loop" pattern during a planned high-volume motorcycle rally could improve overall mortality and impact patient outcomes.
MATERIALS AND METHODS: We performed a retrospective analysis of all motorcycle-related injuries during the city's annual motorcycle rally over a 4-y period. Comparative analysis was completed between those injured during "nontraffic loop" hours versus the city's scheduled 23-mile, 3-d "traffic loop" pattern. The two groups were compared for age, gender, injuries, Injury Severity Score, Glasgow Coma Scale, length of stay, ventilator-free days, and mortality. The primary outcome was mortality.
RESULTS: A total of 139 patients were included (120 nonloop and 19 loop). Mean (standard deviation) age was 36.1 (11.2) y and 72.1% were male. Both groups were equivalent in age, gender, Injury Severity Score, and Glasgow Coma Scale. Traffic loop patients required longer intensive care unit length of stay, (median = 9.0, range: 1-49 d), ventilator days (median = 29.5), (range: 1-49 d) and experienced abdominal trauma (P = 0.002). Emergency medical services transport times during loop hours had shorter response times than the nonloop injury group (7.79 ± 5.2 min and 13.22 ± 14.01 min (P = 0.049). No deaths occurred during the city's scheduled traffic loop (0 versus 22, P = 0.0447).
CONCLUSIONS: Controlled traffic patterns during high-volume city gatherings can improve overall mortality and morbidity. Regional trauma system preparedness with field triage guidelines and coordinated trauma care is warranted to effectively care for the injured.
MATERIALS AND METHODS: We performed a retrospective analysis of all motorcycle-related injuries during the city's annual motorcycle rally over a 4-y period. Comparative analysis was completed between those injured during "nontraffic loop" hours versus the city's scheduled 23-mile, 3-d "traffic loop" pattern. The two groups were compared for age, gender, injuries, Injury Severity Score, Glasgow Coma Scale, length of stay, ventilator-free days, and mortality. The primary outcome was mortality.
RESULTS: A total of 139 patients were included (120 nonloop and 19 loop). Mean (standard deviation) age was 36.1 (11.2) y and 72.1% were male. Both groups were equivalent in age, gender, Injury Severity Score, and Glasgow Coma Scale. Traffic loop patients required longer intensive care unit length of stay, (median = 9.0, range: 1-49 d), ventilator days (median = 29.5), (range: 1-49 d) and experienced abdominal trauma (P = 0.002). Emergency medical services transport times during loop hours had shorter response times than the nonloop injury group (7.79 ± 5.2 min and 13.22 ± 14.01 min (P = 0.049). No deaths occurred during the city's scheduled traffic loop (0 versus 22, P = 0.0447).
CONCLUSIONS: Controlled traffic patterns during high-volume city gatherings can improve overall mortality and morbidity. Regional trauma system preparedness with field triage guidelines and coordinated trauma care is warranted to effectively care for the injured.
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