title: The effect of hemodialysis on electrocardiographic parameters.
abstract: BACKGROUND
  Cardiovascular complications are the leading causes of premature deaths in hemodialysis patients. Due to rapid changes in volume and electrolyte concentration following dialysis, the some electrocardiographic (ECG) changes or arrhythmias might be seen.
  
  
  OBJECTIVE
  To investigate the acute effects of hemodialysis on the ECG parameters in patients with chronic end-stage renal disease (ESRD).
  
  
  METHODS
  We included the consecutive ESRD patients who underwent a hemodialysis. Before and after hemodialysis, some 12 lead ECG parameters were analyzed by two different cardiologists by using electronic digital caliper device.
  
  
  RESULTS
  A total of 62 patients (mean 52 ± 15 years; 65% male) with ESRD undergoing hemodialysis were recruited to the study. P-wave amplitude, QRS amplitude, QRS duration, QTc dispersion, the sum of amplitudes in V1S + V5R derivations, total QRS amplitude, and duration were significantly greater in posthemodialysis patients compared to the prehemodialysis ones. However, T-wave amplitude and QTc duration were significantly lower in posthemodialysis patients.
  
  
  CONCLUSIONS
  The ECG changes including prolangated QRS and increased QTc interval after hemodialysis should be kept in mind and assessed carefully in ESRD patients. Prolongation of these parameters may prove to be a further noninvasive marker of susceptibility to ventricular arrhythmias.
authors.affiliation: Department of Cardiology, Batman Regional State Hospital, Batman, Turkey.
authors.forename: Ramazan
authors.initials: R
authors.lastname: Astan
authors.affiliation: Faculty of Medicine, Department of Cardiology, Bulent Ecevit University, Zonguldak, Turkey.
authors.forename: Ibrahim
authors.initials: I
authors.lastname: Akpinar
authors.affiliation: Department of Cardiology, Türkiye Yüksek Ihtisas Education and Research Hospital, Ankara, Turkey.
authors.forename: Adnan
authors.initials: A
authors.lastname: Karan
authors.affiliation: Department of Cardiology, Health Center in The Middle East Private Hospital, Sanlıurfa, Turkey.
authors.forename: Fehmi
authors.initials: F
authors.lastname: Kacmaz
authors.affiliation: Department of Cardiology, Bilecik State Hospital, Bilecik, Turkey.
authors.forename: Erdogan
authors.initials: E
authors.lastname: Sokmen
authors.affiliation: Department of Cardiology, Diyarbakır Training and Research Hospital, Diyarbakır, Turkey.
authors.forename: Erkan
authors.initials: E
authors.lastname: Baysal
authors.affiliation: Department of Cardiology, Türkiye Yüksek Ihtisas Education and Research Hospital, Ankara, Turkey.
authors.forename: Ozcan
authors.initials: O
authors.lastname: Ozeke
authors.affiliation: Department of Cardiology, Türkiye Yüksek Ihtisas Education and Research Hospital, Ankara, Turkey.
authors.forename: Mehmet Timur
authors.initials: MT
authors.lastname: Selçuk
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001145:Arrhythmias, Cardiac / Q000209:etiology* / Q000503:physiopathology*; D004562:Electrocardiography; D005260:Female; D006801:Humans; D007676:Kidney Failure, Chronic / Q000150:complications*; D008297:Male; D008875:Middle Aged; D006435:Renal Dialysis / Q000009:adverse effects*; D055815:Young Adult
keywords: ECG; electrocardiography; hemodialysis