Complete postoperative evaluation of @entity737 ( @entity737 ) before discharge, including @entity943 induction, has been the standard since their introduction. Whereas the original @entity737 provided little telemetered information and used separate pace-sense and defibrillation leads, modern, third-generation devices provide pace-sense function information in addition to other data and are used in conjunction with integrated transvenous endocardial leads that combine pace-sense and defibrillation function. Changes in lead position, which can potentially result in either an inability to detect fibrillation or to terminate it, should be mirrored by changes in resting pace-sense function. Thus, for newer @entity737 implanted with integrated endocardial lead systems, it is possible that in at least some cases predischarge @entity943 inductions can be avoided. Two hundred @entity1 receiving third-generation @entity737 in conjunction with integrated transvenous leads were evaluated before discharge. Defibrillation detection or termination problems were seen in 8. Declines in resting R-wave amplitude and pacing impedance were significantly associated with such complications (-7 +/- 5 vs -0.3 +/- 2.3 mV [p <0.0001] and -158 +/- 138 vs -93 +/- 76 omega [p <0.05], for those with vs without complications, respectively), as were gross right ventricular lead migrations on chest x-ray. No @entity1 with a defibrillation complication had an R-wave change of <3 mV. However, 13% of @entity1 without complications had R-wave changes of >3 mV. It is concluded that a pace-sense evaluation of @entity737 may be a satisfactory screen to determine those who need to go on to complete testing with @entity943 induction in selected cases.

Predischarge XXXX induction testing of implantable defibrillators may be unnecessary in selected cases.

@entity737 :: ('MESH:D057873', 'Disease') :: ['implantable cardioverter-defibrillators', 'ICDs'] @entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity943 :: ('MESH:D001145', 'Disease') :: ['arrhythmia']
@entity943 :: (MESH:D001145,Disease) :: ['arrhythmia']
