title: [Experiences with the new cardioverter-defibrillator Ventak PRxII].
abstract: Clinical safety and efficacy of the new third-generation implantable cardioverter defibrillator (ICD) Ventak PRxII was studied in 50 patients (pts) with ventricular tachycardia (VT) and/or fibrillation (VF). In 23 pts (46%) the ICD was implanted with a transvenous lead system as first implant and 27 pts (54%) received the Ventak PRxII as generator replacement. Intraoperatively, the mean defibrillation threshold (DFT) was 13 +/- 8 joules and 12 +/- 8 joules, respectively. One pt died perioperatively. During a follow-up of 5.3 +/- 3.8 months 3 patients died due to heart failure. During follow-up 1060 arrhythmia episodes (AE) occurred and were terminated primarily by countershock in 121 AE (11%). Antitachycardia pacing (ATP) was tried in 939 AE (89%) and was successful in 878 AE (94%). Acceleration was present in 6 AE (< 1%). We conclude that there is a high efficacy rate in AE termination by the Ventak PRxII, using ATP or countershock. Therefore, the Ventak PRxII allows a flexible approach to cardiac rhythm management.
authors.affiliation: Abteilung Kardiologie, Medizinische Hochschule Hannover.
authors.forename: P
authors.initials: P
authors.lastname: Pfitzner
authors.forename: H J
authors.initials: HJ
authors.lastname: Trappe
authors.forename: H G
authors.initials: HG
authors.lastname: Fieguth
authors.forename: B
authors.initials: B
authors.lastname: Kielblock
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D017147:Defibrillators, Implantable; D004562:Electrocardiography; D004867:Equipment Design; D004869:Equipment Safety; D005260:Female; D005500:Follow-Up Studies; D006352:Heart Ventricles / Q000503:physiopathology; D006439:Hemodynamics / Q000502:physiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D017180:Tachycardia, Ventricular / Q000503:physiopathology / Q000628:therapy*; D016896:Treatment Outcome; D014693:Ventricular Fibrillation / Q000503:physiopathology / Q000628:therapy*
vernacular_title: Erfahrungen mit dem neuen Kardioverter-Defibrillator Ventak PRxII.