BACKGROUND: @entity955 has a high incidence in @entity1 wearing an implantable cardioverter defibrillator for @entity1165 and may lead to palpitations, @entity712 , @entity951 , @entity64 and inappropriate defibrillator discharge. The aim of the study was to evaluate the efficacy of a dual chamber defibrillator with @entity177 in treating spontaneous @entity4710 . METHODS: One hundred and twelve @entity1 , 88 male, mean age 64+/-11 years, were enrolled. Seventy-six had @entity299 , 21 @entity1000 , nine other @entity299 , six no structural @entity299 . The mean left ventricular ejection fraction was 40+/-11%. Sixty-two had prior @entity4710 . RESULTS: Follow-up lasted 11+/-9 months (range 1-42). Among 933 @entity1165 , 100% of @entity2224 and 92% of @entity1165 were successfully cardioverted. Among 414 detected sustained @entity4710 , 195 were classified as @entity591 (47.1%), 192 as @entity955 (46.4%) and 27 (6.5%) as sinus rhythm. The detection-positive predictive value was 93.5%. Therapy success rates: antitachy pacing on @entity591 = 71.3% (crude estimate); 66.1% (adjusted estimate); 50 Hertz on @entity955 =36.2% (crude estimate); 13.5% (adjusted estimate); @entity1457 on @entity955 = 62.5% (mean energy 7.8+/-14.1J). Shock efficacy was 32% when delivered energy was < or = 2 atrial defibrillation threshold at implant and 92% when >2. Duration of successfully treated @entity955 was significantly lower than that of unsuccessfully treated (6+/-26 min vs 42+/-60). CONCLUSIONS: Atrial antitachy pacing and shock therapies demonstrated very high efficacy in treating @entity4710 in defibrillator @entity1 .

Efficacy of a dual chamber defibrillator with @entity177 in treating spontaneous @entity4710 in XXXX with life-threatening @entity1165 .

@entity1 :: ('9606', 'Species') :: ['patients'] @entity712 :: ('MESH:D006333', 'Disease') :: ['heart failure'] @entity1165 :: ('MESH:D017180', 'Disease') :: ['ventricular tachyarrhythmia episodes', 'ventricular tachyarrhythmias', 'ventricular tachycardia'] @entity64 :: ('MESH:D020521', 'Disease') :: ['stroke'] @entity1457 :: ('MESH:D012769', 'Disease') :: ['atrial shock'] @entity177 :: ('MESH:D051437', 'Disease') :: ['atrial antitachycardia functions'] @entity591 :: ('MESH:D013610', 'Disease') :: ['atrial tachycardia'] @entity1000 :: ('MESH:C536277', 'Disease') :: ['idiopathic dilated cardiomyopathy'] @entity951 :: ('MESH:D000787', 'Disease') :: ['angina'] @entity2224 :: ('MESH:D014693', 'Disease') :: ['ventricular fibrillation'] @entity955 :: ('MESH:D001281', 'Disease') :: ['Atrial fibrillation', 'atrial fibrillation', 'atrial episodes'] @entity299 :: ('MESH:D006331', 'Disease') :: ['heart diseases', 'ischaemic heart disease', 'heart disease'] @entity4710 :: ('MESH:D013617', 'Disease') :: ['atrial tachyarrhythmias']
@entity1 :: (9606,Species) :: ['patients']
