Saudi Journal of Kidney Diseases and Transplantation

RENAL DATA FROM THE ARAB WORLD
Year
: 2020  |  Volume : 31  |  Issue : 3  |  Page : 639--646

Evaluation of electrocardiographic findings before and after hemodialysis session


Hela Jebali1, Hiba Ghabi2, Ikram Mami2, Lilia Ben Fatma2, Wided Smaoui2, Badr Ben Kaab2, Madiha Krid2, Manel Ben Hlima3, Tasnim Ben Ayed3, Omar Guermazi3, Mohamed Sami Mourali3, Soumaya Beji2, Mohamed Chermiti4, Loumi Zied4, Hanene Kateb5, Mohanad Hassan6, Fethi Ben Hmida6, Lamia Raies2, Mohamed Karim Zouaghi2 
1 Department of Nephrology, Rabta Hospital; Faculty of Medicine, Tunis, Tunisia
2 Department of Nephrology, Rabta Hospital, Tunis, Tunisia
3 Department of Cardiology, Rabta Hospital, Tunis, Tunisia
4 Department of Nephrology, Kef Hospital, Kef, Tunisia
5 Department of Nephrology, Manouba Hospital, Manouba, Tunisia
6 Department Laboratory Research of Kidney Pathology (LR00SP01), Charles Nicolle Hospital, Tunis, Tunisia

Correspondence Address:
Hela Jebali
Department of Nephrology, Rabta Hospital, Tunis
Tunisia

Dialysis patients have higher rates of sudden cardiac death. The study of the electrocardiogram could identify patients at risk of developing rhythm disorders. The aim of this study was to evaluate the electrocardiographic findings before and after the hemodialysis (HD) session and to examine associations of clinical and serum electrolytes with electrocardiogram findings. We conducted a multicentric transversal study, including chronic HD patients during January 2018. Standard 12-lead electrocardiogram was recorded, before and after the HD session. A medical history was documented. It included age, gender, initial nephropathy, and comorbidities. Serum potassium and total serum calcium were measured before a routine HD session. Serum potassium was measured after HD session. Corrected QT for heart rate was calculated using Bazett’s formula. The study included 66 patients. Nineteen patients (28.8%) had hyperkalemia before the HD session and 44 (66.7%) patients had hypokalemia after the HD session. Seventeen patients had prolonged QTc interval (25.7%). On multiple regression analysis, only the prolonged QTc interval was significantly correlated with the serum potassium (P = 0.046).When comparing the mean values of electrocardiogram parameters before and after the HD session, we noted a significant change of heart rate (P = 0.001), R wave (P = 0.016), T wave (P = 0.001), and T/R (P = 0.001) wave. Delta K+ did not correlate with the change in T wave amplitude (r = 0.23, P = 0.59), R wave amplitude (r = –0.16, P = 0.2), T/R wave (r = 0.055, P = 0.65), or QRS duration (r = 0.023, P = 0.85). Delta QTc was correlated to ΔK+. We conclude that usual electrographic manifestations of hyperkalemia are less pronounced in HD patients. Our results confirmed the unstable status of cardiac electrophysiology during HD session.


How to cite this article:
Jebali H, Ghabi H, Mami I, Fatma LB, Smaoui W, Kaab BB, Krid M, Hlima MB, Ayed TB, Guermazi O, Mourali MS, Beji S, Chermiti M, Zied L, Kateb H, Hassan M, Hmida FB, Raies L, Zouaghi MK. Evaluation of electrocardiographic findings before and after hemodialysis session.Saudi J Kidney Dis Transpl 2020;31:639-646


How to cite this URL:
Jebali H, Ghabi H, Mami I, Fatma LB, Smaoui W, Kaab BB, Krid M, Hlima MB, Ayed TB, Guermazi O, Mourali MS, Beji S, Chermiti M, Zied L, Kateb H, Hassan M, Hmida FB, Raies L, Zouaghi MK. Evaluation of electrocardiographic findings before and after hemodialysis session. Saudi J Kidney Dis Transpl [serial online] 2020 [cited 2020 Sep 23 ];31:639-646
Available from: http://www.sjkdt.org/article.asp?issn=1319-2442;year=2020;volume=31;issue=3;spage=639;epage=646;aulast=Jebali;type=0