ECG Weekly

Weekly Workout · #502 · August 12, 2024

Cardiac Arrest During Summer Heatwave and an Unexpected ECG Pattern

HPI

A 40-year-old man is found unconscious inside a car during a hot summer day. He is extricated by EMS and found to be in asystolic cardiac arrest. ROSC is achieved en route, and he is comatose and hyperthermic (39℃/102.2 ℉) on arrival to the ED. ECG 1 is obtained after intubation and initiation of a propofol infusion for sedation, ECG 2 is obtained after cooling and discontinuation of the propofol infusion:

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