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MP13: Injuries presenting to the ED following jumps from bridges into water: a multi-agency retrospective case series

Published online by Cambridge University Press:  13 May 2020

D. Stephanian
Affiliation:
University of British Columbia, Vancouver, BC
D. Shearer
Affiliation:
University of British Columbia, Vancouver, BC
N. Bandara
Affiliation:
University of British Columbia, Vancouver, BC
J. Brubacher
Affiliation:
University of British Columbia, Vancouver, BC

Abstract

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Introduction: Suicidal jumps from bridges into water are a unique blunt trauma mechanism. Impact into water produces substantial variation in injuries as compared to falls onto hard surfaces. Outcomes can be further complicated by submersion injuries. We identified cases through a multi-agency review in order to analyze injury patterns seen in EDs. Methods: Cases in British Columbia's Lower Mainland of jumps from bridges >12m into water between 2006 and 2017 were identified by retrospective review of Coast Guard and Police records. Records pertaining to identified incidents were located in ambulance and then hospital records. This multi-agency approach was necessary to generate a comprehensive case series, as case identification was not possible at the hospital level. Patient hospital charts were abstracted and injury incidence rates were analyzed. Results: Records were available for 41 of 52 patients. The population was 63% (26/41) male, median age 37 (IQR 29-48). Thirty-two cases were admitted to hospital, seven were deceased in the ED, one was discharged, and disposition is unknown for one. Most patients (85%) presented to Level One trauma centers. Bridge heights ranged from 15m to 70m; the mean fall height was 40.1m. Pulmonary injuries were nearly universal, including pneumothorax (51%), haemothorax (22%), and pulmonary infiltrate (34%). The primary cardiovascular concern was cardiac arrhythmia (51%). A quarter of cases had intraabdominal lacerations or ruptures (27%). Vertebral fractures at all levels were frequent (59%), although there was only one case each of cord transection and contusion. Neurological injuries were rare; 59% of patients presented to the ED with GCS ≥14 and the incidence of intracranial bleeding was low (7%). Rib fractures were commonly reported (37%) along with other fractures (32%). Body temperature was reported in 24 cases with 3 reports of moderate and 6 reports of mild hypothermia. Conclusion: This case series is the first to characterize injury patterns of jumps from bridges into water in Canada. Patterns are similar to reports in the literature from other countries. However, we found lower injury severity, and higher incidences of spinal fractures and cardiac arrhythmias. The low injury severity reflects the survivorship bias inherent to the sample: data was only obtained from patients who survived to be assessed the ED. These results suggest that patients with this mechanism of injury should be treated for both suspected trauma and cold-water immersion injuries.

Type
Moderated Poster Presentations
Copyright
Copyright © Canadian Association of Emergency Physicians 2020