Electrophysiologic study, 24-hour ambulatory electrocardiographic monitoring, treadmill exercise test and angiographic evaluations were performed in 45 @entity1 14 +/- 3 days (mean +/- standard deviation) after @entity583 . Electrophysiologic study protocol included burst ventricular pacing and 1 to 3 ventricular extrastimuli at 2 cycle lengths from right ventricular apex, right ventricular outflow and left ventricle. Sustained monomorphic @entity1165 ( @entity1165 ) (13 @entity1 ) or @entity2224 ( @entity2224 ) (7 @entity1 ) was induced in 20 @entity1 (44%) (group I). In these 20 @entity1 , @entity1165 / @entity2224 was inducible with 2 extrastimuli in 10 @entity1 , 3 extrastimuli in 9 @entity1 and burst pacing in 1 @entity1 . In the remaining 25 @entity1 (56%), induction of no fewer than 7 ventricular beats were noted (group II). Severe left ventricular (LV) wall motion abnormalities occurred in 70% of group I @entity1 and 22% of group II @entity1 (p less than 0.005). There was no difference in the site of @entity1188 , frequency and grade of @entity1540 on ambulatory electrocardiographic monitoring, double product on submaximal exercise, LV ejection fraction, and number of obstructed coronary arteries (70% or greater) (p greater than 0.1) between group I and group II @entity1 . During a mean follow-up of 10 +/- 3 months, 1 @entity1 in each group died suddenly, and in 1 group I @entity1 spontaneous sustained @entity1165 developed which was identical in morphologic configuration to that induced during electrophysiologic study. In conclusion, electrical induction of sustained @entity1165 or @entity2224 during electrophysiologic study is common in @entity1 2 weeks after @entity583 .(ABSTRACT TRUNCATED AT 250 WORDS)

Frequency and significance of induced sustained XXXX or fibrillation two weeks after @entity583 .

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity1165 :: ('MESH:D017180', 'Disease') :: ['VT', 'ventricular tachycardia'] @entity1188 :: ('MESH:D007238', 'Disease') :: ['infarction'] @entity2224 :: ('MESH:D014693', 'Disease') :: ['VF', 'ventricular fibrillation'] @entity1540 :: ('MESH:D018879', 'Disease') :: ['ventricular ectopic rhythm'] @entity583 :: ('MESH:D009203', 'Disease') :: ['acute myocardial infarction']
@entity1165 :: (MESH:D017180,Disease) :: ['ventricular tachycardia']
