The effect of hemodialysis adequacy on ventricularrepolarization in end-stage kidney disease [Turk Kardiyol Dern Ars]
Turk Kardiyol Dern Ars. Ahead of Print: TKDA-64359 | DOI: 10.5543/tkda.2019.64359

The effect of hemodialysis adequacy on ventricularrepolarization in end-stage kidney disease

Belma Kalaycı1, Engin Onan2, Saime Paydaş2, Bülent Kaya2, Ülkü Adam2, Serkan Besli2, Süleyman Kalaycı3, Fürüzan Köktürk1
1Department of Cardiology, Zonguldak Bülent Ecevit University Faculty of Medicine, Zonguldak, Turkey
2Department of Internal Diseases, Çukurova University Faculty of Medicine, Adana, Turkey
3Department of Cardiology, Zonguldak Atatürk State Hospital, Zonguldak, Turkey

Ventricular repolarization markers may predict ventricular arrhythmias and cardiac arrest. This study aimed to investigate the acute effects of a hemodialysis session and hemodialysis adequacy on ventricular repolarization markers in hemodialysis patients.

The cross-sectional study conducted in two university hospitals and we measured ventricular repolarization markers before and after a hemodialysis session, including QT, QTc, QT minimum, QT maximum, dispersion of QT (QTd), Tp-e interval and Tp-e/QT in 83 hemodialysis patients. Kt/V reflected dialysis adequacy that was calculated using the second generation Daugirdas formula. Patients were divided into two groups according to the Kt/V value, group 1 ≤1.6 as standard dialysis dose and group 2 >1.6 as high dialysis dose.

36 patients were in group 1 and 47 patients were in group 2. There were statistically significantly more female patients in the group 2 (p=0.016). After hemodialysis heart rate increased, blood pressure decreased, QT, QTc, QT maximum, QTd, Tpe interval and Tpe/QT prolonged after hemodialysis session (p<0.05). Ventricular repolarization markers were found similar in two groups. In diabetic patients ventricular repolarization markers also did not affected with Kt/V values.

Hemodialysis session may be a risk factor for cardiac arrest in hemodialysis patients because of prolonged ventricular repolarization parameters independently hemodialysis adequacy. High dialysis dose may not always be the best for the heart.

Keywords: Dialysis dose, hemodialysis; hemodialysis adequacy; Kt/V; QT interval; ventricular repolarization.

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Corresponding Author: Belma Kalaycı, Türkiye
© Copyright 2019 Archives of the Turkish Society of Cardiology
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