Exposures and Outcomes
bradycardia, atrial fibrillation/flutter, arrhythmia, asystole, ventricular tachycardia
ARRHYTHMIA, VENTRICULAR ARRHYTHMIA, INTRAVENTRICULAR CONDUCTION DELAY, EVENTS, ASYSTOLE, JUNCTIONAL RHYTHM, FIRST DEGREE ATRIOVENTRICULAR BLOCK, ATRIAL FIBRILLATION/FLUTTER, VENTRICULAR TACHYCARDIA, SECOND DEGREE ATRIOVENTRICULAR BLOCK
The primary exposure for these The Medtronic SEEQ devices were preprogrammed to detect 26 arrhythmia events. Because some of the arrhythmia events were rare, the outcomes for the present analyses considered six aggregated categories of arrhythmia events as follows: (1) atrial fibrillation/flutter on ≥41 of 45 consecutive beats at ≥150 beats per minute; (2) ventricular arrhythmia defined as polymorphic or monomorphic ventricular tachycardia on ≥18 of 20 beats; (3) conduction blocks defined as asystole >3 seconds, first degree atrioventricular block, second degree atrioventricular block, or junctional rhythm or intraventricular conduction delay; (4) bradycardia defined as <40 beats per minute on four of five consecutive beats; (5) atrial/sinus or other nonventricular tachycardias; and (6) conduction blocks or bradycardia (