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Saudi Journal of Kidney Diseases and Transplantation
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Year : 2009  |  Volume : 20  |  Issue : 4  |  Page : 596-603
Effect of dialysate temperature on hemodynamic stability among hemodialysis patients


Biomedical Engineering Department, Misr University for Science and Technology, 6th of October City, Egypt

Correspondence Address:
Ahmad Taher Azar
Menoufeya, Menouf Ahmad Orabi Square Azar Building
Egypt
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PMID: 19587499

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Cooling the dialysate below 36.5°C is an important factor that contributes to hemody­namic stability in patients during hemodialysis (HD). In this study, the effect of dialysate tempe­rature on hemodynamic stability, patients' perception of dialysis discomfort and post dialysis fatigue were assessed in a group of patients on HD. A total of 50 patients, all of whom were on 3-times-per­week dialysis regimen, were studied. Patients were assessed during six dialysis sessions; in three sessions, the dialysate temperature was normal (37°C) and in three other sessions, the dialysate tem­perature was low (35°C). Specific scale questionnaires were used in each dialysis session, to evaluate the symptoms during the dialysis procedure as well as post-dialysis fatigue, and respective scores were noted. The results showed that usage of low dialysate temperature was associated with the fol­lowing: higher post dialysis systolic blood pressure (P< 0.05) and lower post dialysis heart rate (P< 0.01), with similar ultrafiltration rates, better intra-dialysis symptoms score and post-dialysis fatigue scores (P< 0.001, and P < 0.001, respectively), shorter post-dialysis fatigue period (P< 0.001) as well as higher urea removal (P< 00001) and Kt/V (P< 0.0001). Patients' perceptions were measured by a questionnaire, which showed that 76% of them felt more energetic after dialysis with cool dialysate and requested to be always dialyzed with cool dialysate. Low temperature dialysate is particularly beneficial for highly symptomatic patients, improves tolerance to dialysis in hypotensive patients and helps increase ultrafiltration while maintaining hemodynamic stability during and after dialysis.


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