What question did this study set out to answer?

The aim is to identify factors that predict mortality in seawater drowning patients and assess the role of various clinical parameters.

July 10, 2026Open Access

Predictors of Mortality in Adult Seawater Drowning Patients: A Retrospective Analysis of Arterial Blood Gas, Inflammatory Indices, and Radiological Findings

AYAhmet YurttaşAlanya Hamdullah Emin Pasa University DÇDeniz ÇelikAlanya Hamdullah Emin Pasa University HLHüseyin LakadamyalıAlanya Hamdullah Emin Pasa University

Key Points

The aim is to identify factors that predict mortality in seawater drowning patients and assess the role of various clinical parameters.
Retrospective review of 51 drowning cases, collecting data on demographics, clinical parameters, and imaging findings.
Analysis of age, sex, ethanol level, complete blood count, arterial blood gas parameters, and outcomes.
ROC curve analysis to determine cut-off values for mortality predictive parameters.
Overall mortality rate was 45% (23 out of 51 cases).
Key factors linked with increased mortality included advanced age, cardiac arrest, and elevated troponin levels (>11 ng/L).
Severe metabolic acidosis was identified as a significant predictor of mortality.

Abstract

This study sought to identify independent predictors of mortality in patients with seawater drowning and to evaluate the prognostic performance of arterial blood gas parameters and inflammatory indices using receiver operating characteristic (ROC) curve analysis. Medical records of a total of 51 drowning cases (34 males, 17 females; mean age 48.8 years) were retrospectively reviewed. Age, sex, ethanol level, complete blood count, biochemical parameters, arterial blood gas parameters, lung imaging findings, and clinical outcomes were analyzed. The cut-off values of parameters with predictive values for mortality were determined using receiver operating characteristic (ROC) curve analysis. The overall mortality rate was 45% (23/51). The main factors significantly associated with mortality were advanced age, cardiac arrest, need for intensive care, elevated troponin levels (11 ng/L), and severe metabolic acidosis. Bicarbonate

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