A man in his 40s with self-reported hypertrophic cardiomyopathy, hypertension, and obstructive sleep apnea presented in cardiac arrest owing to ventricular tachycardia/fibrillation. He reported feeling unwell on the afternoon of presentation with dizziness and blurry vision, and then abruptly lost consciousness with seizure-like activity. On the arrival of emergency services, he was found to be pulseless with a rhythm of ventricular fibrillation; he was resuscitated with return of spontaneous circulation, intubated, and brought to the emergency department where cooling was initiated. His initial electrocardiogram (ECG) is shown in the Figure, A.
Ge J, Goldschlager N. A Patient With Hypertrophic Cardiomyopathy Presenting in Cardiac Arrest. JAMA Intern Med. Published online February 06, 2017. doi:10.1001/jamainternmed.2016.8756