Sudden cardiac arrest: Case 4

ECG 1. Sinus rhythm interrupted by ventricular tachycardia (VT).

ECG 2. Spontaneous termination of ventricular tachycardia (VT).

ECG 3. A single ventricular beat, followed by a three ventricular beats (VT).

ECG 4. Regular supraventricular rhythm (P-waves precede the QRS).