P-Wave Variation and Effective Hemodialysis in Chronic Hemodialysis Patients
K. CHAMSI *
Department of Nephrology, Marrakech’s Mohammed VI University Hospital, Morocco.
I. KATIF
Department of Cardiology, Marrakech’s Mohammed VI University Hospital, Morocco.
M. CHETTATI
Department of Nephrology, Marrakech’s Mohammed VI University Hospital, Morocco.
W. FADILI
Department of Nephrology, Marrakech’s Mohammed VI University Hospital, Morocco.
M. ELHATTAOUI
Department of Cardiology, Marrakech’s Mohammed VI University Hospital, Morocco.
M. I.LAOUAD
Department of Nephrology, Marrakech’s Mohammed VI University Hospital, Morocco.
*Author to whom correspondence should be addressed.
Abstract
Background: Analyzing a 12‐lead surface electrocardiogram (ECG), specifically variability of the P wave interval, we aimed to assess whether or not P-wave variation can be used as a good indicator of effective hemodialysis with chronic hemodialysis patients.
Methods: Data from 56 patients receiving HD over a period of one year were collected; the same group of patients was then evaluated during treatment with conventional HD. Electrolyte values were obtained, and Holter ECGs were performed.
Results: P maximum was 108±76 ms at the beginning and showed a decrease by the end of dialysis to 101±37ms (P<0.0001). Although statistically significant decreases were observed in potassium and a significant increase in natremia and calcium levels after hemodialysis, no such changes were observed in other blood electrolytes.
Conclusion: The decrease of P-wave after hemodialysis and its significant correlation with the variability of natremia, calcemic and potassium serum level, which can be used as an indicator of effective hemodialysis.
Keywords: Hemodialysis, ECG, electrolytes variation