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Changes in QTc interval in long-term hemodialysis patients

Author

Listed:
  • Yoshihiro Matsumoto
  • Yasuo Mori
  • Shinji Kageyama
  • Kazuo Arihara
  • Hidemaro Sato
  • Kijun Nagata
  • Yasushi Shimada
  • Yohichi Nojima
  • Koichiro Iguchi
  • Toshikazu Sugiyama

Abstract

Background: Cardiovascular diseases, including sudden cardiac death (SCD), are the leading cause of death in hemodialysis (HD) patients. A prolonged QT interval on the electrocardiogram (ECG) is a risk factor for SCD in HD patients. This study investigated whether the heart rate-corrected QT (QTc) interval becomes prolonged along with dialysis vintage. Methods: A total of 102 HD patients were retrospectively studied. Their ECG data were analyzed at 1, 4, and 7 years after HD initiation. The control group comprised 68 age-matched individuals who had normal renal function and two available ECG reports at an interval of more than 4 years. QTc was measured according to the Bazett formula. The association between QTc interval and dialysis vintage was studied. Additionally, clinically relevant variables related to QTc duration at 1 year after HD initiation were assessed. Results: Average QTc interval at 4 and 7 years after HD initiation was significantly longer than that at 1 year after HD initiation (443, 445, and 437 ms) (p

Suggested Citation

  • Yoshihiro Matsumoto & Yasuo Mori & Shinji Kageyama & Kazuo Arihara & Hidemaro Sato & Kijun Nagata & Yasushi Shimada & Yohichi Nojima & Koichiro Iguchi & Toshikazu Sugiyama, 2019. "Changes in QTc interval in long-term hemodialysis patients," PLOS ONE, Public Library of Science, vol. 14(1), pages 1-10, January.
    • Handle: RePEc:plo:pone00:0209297
    DOI: 10.1371/journal.pone.0209297
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