Evaluation of QT dispersion and T-peak to T-end interval in patients with early-stage sarcoidosis

KASAPKARA H. A. , Senturk A., Bilen E., AYHAN H., Karaduman B. D. , Turinay Z. S. , ...More

REVISTA PORTUGUESA DE CARDIOLOGIA, vol.36, no.12, pp.919-924, 2017 (Peer-Reviewed Journal) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 36 Issue: 12
  • Publication Date: 2017
  • Doi Number: 10.1016/j.repc.2017.05.011
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.919-924


Introduction and Aim: Sarcoidosis increases inhomogeneity in ventricular repolarization due to the presence of sarcoid granuloma, which significantly correlates with ventricular fibrillation. Various studies have suggested that the interval from the peak to the end of the electrocardio-graphic T wave (T-peak to T-end [Tpe] interval) may correspond to the transmural dispersion of repolarization and that increased Tpe interval and Tpe/QT ratio are associated with malignant ventricular arrhythmias. The present study hypothesized that QT and Tpe intervals are significantly prolonged in sarcoidosis patients without apparent cardiac involvement.