Purpose:

AF is also common among hemodialysis patients and is associated with high mortality. P wave dispersion have been shown to be a predictor of AF in several clinical conditions. The objective of our study was to determine the effects of dialysis on P wave dispersion and P wave durations among non diabetic patients with end-stage renal disease on chronic hemodialysis.

Materials and methods:

We studied P max , P min and P dispersion in 96 patients (46 men and 50 women, mean age 50.56 ± 15.6 ) with chronic renal failure undergoing hemodialysis. P dispersion was calculated as difference between maximum and minumum p wave duration. Twelve-lead ECGs were recorded at the beginning and at the end of each session. Ionic parameters checked during the study.

Results:

P dispersion did not show any significant change ( 42.76±17.6 vs 43.88±17.31, p = 0.50). Likewise P dispersion , P maximum (103.14±16.8 vs 104.35±16.42 , p=0.43) , P minimum ( 60.38±16.1 vs 60.47±16.7 ,p =0.90 ) and P mean (83.89±15.16 vs 84.01±15.69 , p =0.91) did not show any significant difference before and after dialysis. Potassium (4.97±0.55 vs 3.41±0.46 p = 0.01) and calcium (8.71±0.85 vs 8.54±0.74) levels decreased significantly during dialysis session.

Conclusion:

According to our findings dialysis process does not cause significant increase in P dispersion and P wave duration.

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