Abstract 215: Out-of-Hospital Cardiac Arrest Due to Drowning: Drowning Locations and Outcomes---a Nationwide Observational Study
Background: Little is known about the effect of drowning locations to outcomes in out-of-hospital cardiac arrest due to drowning. This study aims to describe drowning locations and associated outcomes in the South Korea.
Methods: All out-of-hospital cardiac arrest patients due to drowning and treated with emergency medical services were collected from nationwide out-of-hospital cardiac arrest registry between 2008 and 2012. Main outcome was survival hospital discharge measured by hospital medical record review. Descriptive analysis using chi-square test and t-test were performed for comparing drowning locations and survival. Multivariable logistic regression analysis were performed adjusting for potential confounders to calculate adjusted odds ratios and 95% confidence intervals for determining effect size of drowning location with sport or leisure activity to the survival discharge.
Results: Of 113,075 total out-of-hospital cardiac arrest patients, 1,982 patients (1.8%) were drowning victims. After excluding patients with suicidal attempt, unknown information of scene location and activity, survival discharge rate of patients at a swimming pool or a beach resort were 15.0% (n=12/80), patients at a natural water such as river or lake doing sports or leisure activity were 3.5% (n=16/459), patients at a natural water doing other activities were 5.0% (n=11/219), and patients at other locations were 4.8% (n=6/126). When we performed multivariable logistic regression analysis in all patients with sport or leisure activity for measuring effect size of drowning location to survival discharge, there was a significant negative association between natural water and survival discharge (adjusted OR=0.15, 95% CI=0.05-0.46, p<0.001).
Conclusion: Drowning location was significantly associated with survival discharge in out-of-hospital cardiac arrest due to drowning in our nationwide observational study. Current international drowning prevention have been focused on activities in swimming pools or resort beaches, but actually more fatal drowning cardiac arrest event occurred in natural water other than swimming pool or beach resort. Prevention and resuscitation effort on drowning event in non-recreational natural water should be encouraged.
Author Disclosures: J. Jeong: None. S. Shin: None.
- © 2014 by American Heart Association, Inc.