Clin. Cardiol. 23, 857 (2000)
This section edited by Edward A. Geiser, M.D.
Bashir Hanif, M.D., and Krishnamurthy Suresh, M.D.
Cardiology Division, Health Sciences Center, S.U.N.Y. at Stony Brook, New York, USA
During hospitalization, a 66-year-old Caucasian woman admitted to our hospital for treatment of acute bronchitis developed an episode of ventricular tachycardia that proved refractory to therapy, and she expired. Her baseline electrocardiogram and a three-channel electrocardiographic recording during the episode of ventricular tachycardia demonstrate unusual pacemaker spikes (Figs. 1 A and B).
This patient had a past medical history of a myocardial infarction resulting in severe left ventricular dysfunction and had undergone dynamic cardiomyoplasty using the latissimus dorsi muscle. The unusual pacemaker spikes seen represent the drive train of stimuli delivered by the cardiomyostimulator to the latissimus dorsi to assist cardiac mechanical systole.