Haemodialysis increases QTc interval but not QTc dispersion in ESRD patients without manifest cardiac disease

68 stable, non-diabetic end-stage renal disease (ESRD) patients on haemodialysis (47.1% males, age 40.2+/-12.7 years, HD duration 57+/-36 months and 37% hypertensive), with normal maximal ECG stress test and sub-endocardiac viability index and without ECG left ventricular hypertrophy.

A single haemodialysis (HD) session

Pre-haemodialysis baseline values

Changes in QTc interval and QTc dispersion measured 10 min pre- and post-HDsurrogate