PMID- 15273456 OWN - NLM STAT- MEDLINE DCOM- 20060818 LR - 20181113 IS - 1383-875X (Print) IS - 1383-875X (Linking) VI - 11 IP - 1 DP - 2004 Aug TI - Implantable cardioverter defibrillator therapy in patients with ischemic or non-ischemic cardiomyopathy and nonsustained ventricular tachycardia. PG - 59-65 AB - BACKGROUND: Mortality benefit from implantable cardioverter defibrillator (ICD) therapy in ischemic cardiomyopathy (ICM) with non-sustained ventricular tachycardia (NS-VT) and inducible VT is well defined. Although NS-VT may suggest an increased risk of sudden cardiac death (SCD) in non-ischemic cardiomyopathy (NICM), the role of ICD therapy is unclear. This retrospective study compares follow-up data in these two groups after ICD implantation. METHODS: 153 consecutive patients with ICD implantation for NS-VT were analyzed. ICM patients received an ICD if they had inducible VT at electrophysiology study (EPS). NICM patients did not routinely undergo EPS before ICD implantation. RESULTS: There were 48 patients (33 males) in NICM group and 105 patients (89 males) in the ICM group. Baseline characteristics including mean ejection fraction (EF), distribution in various New York Heart Association (NYHA) classes, and the mean duration of follow up in the two groups were similar. 50% of the patients in the NICM group and 36% in the ICM group received appropriate therapies (p = 0.106). The mean number of appropriate therapies in the two groups were similar (23.3 +/- 56.7 and 22.5 +/- 59.5 respectively, p = NS). The percentage of patients with inappropriate therapies in the two groups were 27% and 23% respectively (p = NS). Patients in the NICM group received appropriate ICD discharges at a greater rate (p = 0.02). CONCLUSION: Patients undergoing ICD implantation for NICM and NS-VT receive appropriate ICD therapy at a greater rate than those implanted for ICM, NS-VT, and a positive EPS. Although these data do not prove survival benefit in NICM, they suggest a beneficial effect. FAU - Evonich, Rudolph F AU - Evonich RF AD - Thoracic and Cardiovascular Institute, Department of Epidemiology, Michigan State University, Lansing, Michigan 48912, USA. FAU - Maheshwari, Alok AU - Maheshwari A FAU - Gardiner, Joseph C AU - Gardiner JC FAU - Khasnis, Atul AU - Khasnis A FAU - Kantipudi, Sricharan AU - Kantipudi S FAU - Ip, John H AU - Ip JH FAU - Grimes, Denise AU - Grimes D FAU - Hayter, Gregory AU - Hayter G FAU - Thakur, Ranjan K AU - Thakur RK LA - eng PT - Comparative Study PT - Journal Article PL - Netherlands TA - J Interv Card Electrophysiol JT - Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing JID - 9708966 SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Cardiomyopathies/physiopathology/*therapy MH - *Defibrillators, Implantable MH - Electrophysiologic Techniques, Cardiac MH - Female MH - Follow-Up Studies MH - Humans MH - Male MH - Michigan MH - Middle Aged MH - Myocardial Ischemia/physiopathology/*therapy MH - Retrospective Studies MH - Stroke Volume MH - Survival Analysis MH - Tachycardia, Ventricular/physiopathology/*therapy MH - Treatment Outcome EDAT- 2004/07/27 05:00 MHDA- 2006/08/19 09:00 CRDT- 2004/07/27 05:00 PHST- 2004/07/27 05:00 [pubmed] PHST- 2006/08/19 09:00 [medline] PHST- 2004/07/27 05:00 [entrez] AID - 5276804 [pii] AID - 10.1023/B:JICE.0000035931.10063.50 [doi] PST - ppublish SO - J Interv Card Electrophysiol. 2004 Aug;11(1):59-65. doi: 10.1023/B:JICE.0000035931.10063.50.