Évaluation de la performance de la mesure conventionnelle et séquentielle de la pression artérielle en centre chez les patients en dialyse péritonéale à Dakar.

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Abstract
Introduction: The aim of this study was to evaluate the performance of conventional (CBPM) and sequential (SBPM) blood pressure measurements in peritoneal dialysis (PD) patients using ambulatory blood pressure measurements (ABPM) as a reference. Patients and methods: Through a cross-sectional study including 17 patients followed in the PD unit of the Aristide Le Dantec Hospital, BP was measured by 3 methods: i) an automated measurement (OMRON M3 COMFORTTM) performed by a health care staff called CBPM; ii) the average of 5 automated measurements in an isolated patient in a cubicle called SBPM; iii) 24-hour ABPM with the CONTECTM device (Germany). High blood pressure was considered when the BP was higher than 130/80 mmHg at the 24-hour ABPM. Results: The area under the curve (AUC) for systolic blood pressure (SBP) was similar (p=0.28) between SBPM [AUC, 0.933; 95% CI, 0.813 – 1.000] and CBPM [AUC, 0.900; 95% CI, 0.752 – 1.000]. Regarding diastolic blood pressure (DBP), SBPM [AUC, 0.858; 95% CI, 0.638 – 1.000] was similar (p=1) to CBPM [AUC, 0.917; 95% CI, 0.753 – 1.000]. On Bland-Altman analysis, CBPM overestimated SBP by 11.65 mmHg and DBP by 3.94 mmHg. SBPM overestimated SBP by 6.2 mmHg and DBP by 4.35 mmHg. Conclusion: SBPM and CBPM are efficient in the diagnosis of ambulatory hypertension in PD patients in Dakar.

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