A case of recurrent ventricular tachycardia produced by an asynchronous ventricular stimulus of a normally functioning 'committed' atrioventricular (AV) sequential demand (DVI) pacemaker is described. The characteristics of these units are compared with those of the 'noncommitted' type of AV sequential pacemaker. Caution is suggested in the use of committed DVI pacemakers in situations where ventricular vulnerability may occur.
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine