Assessment of Hypertension in Children with Autosomal Dominant Polycystic Kidney Disease; Single-Center Experience

Abstract

Autosomal dominant polycystic kidney disease (ADPKD) is one of the most common hereditary renal cystic diseases. Althoughits clinical manifestations usually occur in adulthood, hypertension (HT) is known to develop in most patients before the decline inrenal function and it is associated with faster progression to end stage kidney disease (ESKD). We investigated ambulatory bloodpressure monitoring (ABPM) results of 23 patients with ADPKD, followed up in the Pediatric Nephrology Clinic of Ondokuz MayısUniversity Medical Faculty Hospital. Patients’ demographic characteristics, laboratory and ultrasonography (US) results, officeblood pressure, and ABPM measurements were evaluated. The parameters of gender, age, increased kidney size, proteinuria,glomerular filtration rate (GFR) was compared in hypertensive and non-hypertensive group. Twenty three patients (13 girls, tenboys) with a mean age of 11.94±4.01 (min-max: 4.6-18) years and a female/male ratio of 1.3/1 were examined. Ultrasound revealedincreased kidney sizes in 12 patients (52.2%) and multiple cysts in the bilateral kidneys in 20 patients (87%). Mild to moderateproteinuria was detected in 7 patients (30.4%). The HT ratio of patients was 52.2% and 39.1% when assessed with office bloodpressure (BP) measurement and ABPM respectively. A non-dipper pattern was established in 14 patients (60.9%). Gender, age,increased kidney size, proteinuria, GFR did not differ significantly between ADPKD patients with and without ambulatory HT. Thisstudy shows that nearly half of children with ADPKD have HT by ABPM. BP should be regularly screened by ABPM in all pediatricADPKD patients.