Circadian variation of paroxysmal supraventricular tachycardia

Shih Huang Lee, Pan Chen Chang, Huei Fong Hung, Peiliang Kuan, Jun Jack Cheng, Chi Ren Hung

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Background: Various clinical manifestations of cardiovascular diseases have a pattern of circadian variation. In this study, we investigated whether the onset and duration of paroxysmal supraventricular tachycardia (PSVT) has a circadian variation. Methods and results: In our analysis, we included 105 patients with 498 PSVT episodes. In this study, the onset of PSVT did not have a uniform distribution throughout the 24-h period. There were nearly equal peaks in the time periods from 8:00 to 9:00 AM, 12:00 to 1:00 PM, and 5:00 to 6:00 PM, with a trough at night. The duration of PSVT also did not show a uniform distribution throughout the 24-h period; it increased significantly during the daytime, with a peak between 1:00 and 2:00 PM, another peak between 6:00 and 7:00 PM, and a significant reduction at night. Conclusions: The onset and duration of PSVT showed a circadian variation. However, the time-oriented antiarrhythmic therapy for preventing PSVT needs further study.

Original languageEnglish
Pages (from-to)674-678
Number of pages5
Issue number3
Publication statusPublished - 1999
Externally publishedYes


  • Circadian variation
  • Supraventricular
  • Tachycardia

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine
  • Critical Care and Intensive Care Medicine
  • Cardiology and Cardiovascular Medicine


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