Cold Water Near-Drowning Reversal: Post-Rescue Rewarming Protocols for Hypothermic Victims

Introduction: The Unique Challenge of Cold Water Near-Drowning

Cold water near-drowning presents a distinct clinical entity that challenges conventional resuscitation dogma. The combination of submersion and hypothermia creates a pathophysiological state where the usual timelines for resuscitation are extended, and the risk of iatrogenic harm from aggressive rewarming is heightened. This guide addresses the core question: How does one safely reverse hypothermia in a victim rescued from cold water? The answer lies not simply in applying heat, but in understanding the dynamic interplay between the patient's thermal gradient, cardiovascular status, and the rewarming method chosen. For the experienced practitioner, the nuances of heat transfer, the dangers of the 'afterdrop' phenomenon, and the selection between passive and active techniques are critical. This overview reflects widely shared professional practices as of May 2026; verify critical details against current official guidance where applicable.

Understanding the Pathophysiology

When a victim is submerged in cold water (