Coarse ventricular fibrillation presenting as asystole or very low amplitude ventricular fibrillation.
D001145:Arrhythmias, Cardiac / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004562:Electrocardiography; D006323:Heart Arrest / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012151:Resuscitation; D014693:Ventricular Fibrillation / Q000175:diagnosis*