A prospective study on the risk-stratification for patients with non-sustained ventricular tachycardia using a novel algorithm

Autor: Takashi Nitta, Akira Ueno, Takao Kato, Toshimi Yajima, Kenji Yodogawa, Yasushi Miyauchi, Yoshinori Kobayashi, Teruo Takano
Rok vydání: 2007
Předmět:
Zdroj: Circulation journal : official journal of the Japanese Circulation Society. 71(7)
ISSN: 1346-9843
Popis: Background The therapeutic strategy for non-sustained ventricular tachycardia (NSVT), considered as a risk-stratifier for sudden cardiac death (SCD), still remains undetermined. Methods and Results In the present study 222 of 4,079 patients (5.4%) hospitalized with NSVT during 2002 to 2004 were prospectively evaluated using an algorithm for risk-stratification according to each type of structural heart disease. The algorithm comprises the left ventricular ejection fraction, signal-averaged electrocardiography, programmed ventricular stimulation and the family history of SCD. Of the 222 patients, 151 (68.0%) were successfully risk-stratified and 32 patients consequently received an implantable cardioverter defibrillator (ICD) (21.2%; algorithm-ICD group). The remaining 119 patients without an ICD (algorithm-observation group) were observed. During 27.7±11.4 months of follow-up, the patients in the algorithm-ICD group had a significantly higher prevalence of tachyarrhythmic events than did those in the algorithm-observation group (9/32 vs 1/119; p
Databáze: OpenAIRE