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Saudi J Kidney Dis Transpl. 2019 Sep-Oct;30(5):1038-1043. doi: 10.4103/1319-2442.270258.

Evaluation of blood pressure profile in chronic hemodialysis patients using two measurement methods: Home blood pressure measurement and conventional measurement.

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Department of Nephrology, Cheikh Anta Diop University; Department of Nephrology, Aristide Le Dantec University Hospital, Dakar, Senegal.
Department of Nephrology, Aristide Le Dantec University Hospital, Dakar, Senegal.


The monitoring of hypertension (HTN) in dialysis is often delicate with potentially false measurements due to the white coat effect on the one hand and masked HTN (M-HTN) on the other hand. In this population, there is much controversy over the ideal moment for taking blood pressure (BP) and the target values. An answer to these questions is given by home BP measurement that can detect white coat HTN (WC-HTN) and M-HTN. The aim of this study was to determine the respective prevalence of permanent HTN (P-HTN), WC-HTN, M-HTN, and permanently normotensive (P-NTN) in this population and to analyze the risk factors of M-HTN and WC-HTN in hemodialysis (HD) centers in sub-Saharan Africa. This was a multicenter, descriptive, and analytical cross-sectional study conducted over a period of one month and 23 days. Data collection was performed using a home BP measurement form, conventional BP measurement form, and clinical and laboratory data collection form. The study included all patients who could take their BP at home using an electronic BP machine and record results on the BP forms. All analyses were performed using the Sphinx plus software version 5. The significance level for all statistical tests was set at 5%. The mean age of patients was 45.57 years ± 14.11, with a sex ratio of 1.42. The mean duration in dialysis was 57.96 months ± 34.86. Adherence to the home BP measurement was 100% in 71.7%. P-NTN patients were 15.2% (7 patients), WC-HTN patients were 13% (6 patients), M-HTN patients were 17.5% (8 patients), and P-HTN patients were 54.3% (25 patients). A statistically significant association was observed between WC-HTN and age (P = 0.01). In this work, we noted an important proportion of M-HTN and WC-HTN. This result confirms the need for home BP measurement in the follow-up of BP in HD patients.

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