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Evaluation of the changes in electrocardiographic ventricular repolarization parameters after COVID-19 recovery in

Raziye Yazıcı1, İbrahim Güney2

  • 1Department of Internal Medicine, Division of Nephrology, Konya Beyhekim Training and Research Hospital, Konya, Turkey.

Therapeutic Apheresis and Dialysis : Official Peer-Reviewed Journal of the International Society for Apheresis, the Japanese Society for Apheresis, the Japanese Society for Dialysis Therapy
|July 10, 2023
PubMed

Insights

COVID-19 recovery prolonged ventricular repolarization in hemodialysis patients. This increases arrhythmia risk in a population already prone to sudden cardiac death.

Area of Science:

  • Cardiology
  • Nephrology
  • Infectious Diseases

Background:

  • Coronavirus disease-2019 (COVID-19) presents cardiac complications.
  • Limited data exists on electrocardiogram (ECG) changes post-COVID-19 in hemodialysis patients.
  • Ventricular repolarization alterations are crucial in cardiac health.

Purpose of the Study:

  • To investigate changes in ventricular repolarization parameters after COVID-19 recovery.
  • To assess the impact of COVID-19 on ECG findings in hemodialysis patients.
  • To evaluate the potential increase in arrhythmia risk post-COVID-19.

Main Methods:

  • Included 55 hemodialysis patients who recovered from COVID-19.
  • Measured QT interval, Tp-e interval, corrected QT (QTc), QTc dispersion, and Tp-e dispersion.
  • Compared ECG parameters before COVID-19 and at least one month post-recovery.

Main Results:

  • Prolonged longest QTc (QTcmax) values post-recovery (455 ± 26 ms) compared to pre-infection (427 ± 28 ms).
  • Significantly increased QTc dispersion post-recovery (65 ± 20 ms) versus pre-infection (39 ± 16 ms).
  • Statistical significance achieved for both QTcmax and QTc dispersion changes (p < 0.000).

Conclusions:

  • Ventricular repolarization parameters notably increased in hemodialysis patients after COVID-19 recovery.
  • COVID-19 recovery may exacerbate arrhythmia risk in hemodialysis patients.
  • Further research is warranted to manage cardiac risks in this vulnerable population.
Abstract

Keywords:
COVID-19QT dispersionhemodialysisrecoveryventricular repolarization

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