St. Jude Medical

Physician warning issued relating to potential malfunction due to a microprocessor anomaly in "a very small number" of the firm's Trilogy family of pacemakers, firm reports March 10. Notification follows a July 1999 physician communication related to Trilogy line. Twenty out of roughly 144,000 devices currently on the market have been "reported to exhibit an inappropriate pacing mode change to single-chamber atrial pacing," the company explains. No patient injuries are reported