Noninvasive conversion of atrial flutter using a multiprogrammable DDD pulse generator.

A patient with sick sinus syndrome and resistant paroxysmal atrial flutter was treated with amiodarone and implanted with a Medtronic 7005 DDD pacemaker. Following discontinuation of amiodarone, an episode of sustained atrial flutter was converted to sinus rhythm by noninvasive rapid atrial pacing in the outpatient clinic. This case illustrates one of the many capabilities for arrhythmic intervention using currently available implanted pacemakers.