71 Q-T DISPERSION ABNORMALITIES IN THE METABOLIC SYNDROME. Issue 1 (1st January 2007)

• Record Type: Journal Article
• Authors: Altieri, P. I.; Figueroa, Y.; Banchs, H.; Escobales, N.; Crespo, M. J.; de la Madrid, J. G.; López, J. C.
• Is Part Of: Journal of investigative medicine. Volume 55:Issue 1(2007)
• Page Start: S258
• Page End: S258
• Publication Date: 2007-01-01
• Subjects: Clinical medicine -- Periodicals; Medicine -- Research -- Periodicals; Medicine; Research -- United States; Clinical medicine; Medicine -- Research; Periodicals; 616.075
• Languages: English
• ISSNs: 1081-5589

Abstract

Abstract : We studied 173 patients with the metabolic syndrome (MS) with an average age of 60 years. Fifty-seven percent were males and 43 percent were females. The mean blood glucose in the MS group was 169 mg%; 97% were diabetic type 2 and 3% were diabetic type 1. The mean body mass was 30 kg/m 2 . The Q-T interval was measured by standard techniques and corrected by linear correction formula. Q-TC dispersion (QTCD) calculated from the difference between QTCmax and QTC min was 98 ± 4 ms in the MS group and 45 ± 15 ms in the control group ( p < .001). A higher incidence of atrial fibrillation was found in the MS group (12% in MS vs 5.9% in controls, p < .001). Ventricular arrhythmias were not observed in the MS group, and the ejection fraction was subnormal ( p < .001) when compared with the control group (50 ± 8% vs 62 ± 12%, respectively). These results agree with the observation by Larroude (J Heart Rhythm 2006;3:660-4) regarding Q-T dynamics and variability in paroxysmal atrial fibrillation.