Diagnostic and prognostic yields of ambulatory blood pressure measurements in haemodialysis patients: a 6-year longitudinal study

• Published in: Acta cardiologica 2024-12, p.1
• Main Authors: Huart, J, Vanderweckene, P, Seidel, L, Bovy, C, Delanaye, P, Dubois, B, Grosch, S, Xhignesse, P, Saint-Remy, A, J-M, Krzesinski, Jouret, F
• Format: Article
• Language: English
• ISSN: 1784-973X; 1784-973X
• DOI: 10.1080/00015385.2024.2436811

Blood pressure (BP) control in haemodialysis (HD) patients is essential. Peri-dialytic BP levels do not accurately diagnose hypertension or predict the cardiovascular (CV) mortality. In this study, we recruited 43 adult patients who had been on chronic HD for ≥3 months. Seven-day home BP monitoring (HBPM) (values of Day1 discarded) and 44-h interdialytic ambulatory BP monitoring (iABPM) were performed. Pre- and post-dialysis BP levels were measured during the 6 dialysis sessions prior to iABPM. A 6-year follow-up was carried out to assess all-cause and CV mortality. In patients considered as normotensive in pre-dialysis (  = 17), masked hypertension was found in 24% and 29% on the basis of iABPM and HBPM, respectively. Conversely, among hypertensive patients in pre-dialysis (  = 26), 'white-coat' hypertension was noted in 23% either by iABPM or HBPM. After a 6-year follow-up, 25 patients were deceased including 6 patients from CV causes. Day-time systolic BP measured by iABPM was associated with all-cause mortality in an adjusted model for age and gender (  = 0.045). In chronic HD patients, 44-h iABPM and 6-day HBPM show a reliable concordance and help to re-classify ∼25% of cases miscategorised based on pre-dialysis measurements. Day-time systolic BP levels using iABPM were significantly associated with 6-year all-cause mortality.