Marlais, M; Cuthell, O; Langan, D; Dudley, J; Sinha, MD; Winyard, PJ; (2016) Hypertension in autosomal dominant polycystic kidney disease: a meta-analysis. Archives of Disease in Childhood , 101 (12) pp. 1142-1147. 10.1136/archdischild-2015-310221.

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Abstract

CONTEXT: Autosomal dominant polycystic kidney disease (ADPKD) is a common disorder that can cause hypertension during childhood, but the true prevalence of hypertension during childhood is not known. OBJECTIVE: We undertook a systematic review and meta-analysis to determine the prevalence of hypertension in children with ADPKD. DATA SOURCES: Systematic review of articles published between 1980 and 2015 in MEDLINE and EMBASE. STUDY SELECTION: Studies selected by two authors independently if reporting data on prevalence of hypertension in children and young persons aged <21 years with a diagnosis of ADPKD. Observational series were included with study populations of >15 children. Articles were excluded if inadequate diagnostic criteria for hypertension were used. Studies with selection bias were included but analysed separately. DATA EXTRACTION: Data extracted on prevalence of hypertension, proteinuria and reduced renal function using standardised form. Meta-analysis was performed to calculate weighted mean prevalence. RESULTS: 903 articles were retrieved from our search; 14 studies met the inclusion criteria: 1 prospective randomised controlled trial; 8 prospective observational studies; and 5 retrospective cross-sectional studies. From 928 children with clinically confirmed ADPKD, 20% (95% CI 15% to 27%) were hypertensive. The estimated prevalence of proteinuria in children with ADPKD is 20% (8 studies; 95% CI 9% to 40%) while reduced renal function occurred in 8% (5 studies; 95% CI 2% to 26%). LIMITATIONS: Studies showed a high degree of methodological heterogeneity (I(2)=73.4%, τ(2)=0.3408, p<0.0001). Most studies did not use ambulatory blood pressure (BP) monitoring to diagnose hypertension. CONCLUSIONS: In this meta-analysis we estimate 20% of children with ADPKD have hypertension. In the population, many children with ADPKD are not under regular follow-up and remain undiagnosed. We recommend that all children at risk of ADPKD have regular BP measurement.

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