title: Ambulatory blood pressure monitoring and renal functions in children with a solitary kidney.
abstract: The aim of this study is to investigate the blood pressure (BP) profile, microalbuminuria, renal functions, and relations with remaining normal kidney size in children with unilateral functioning solitary kidney (UFSK). Sixty-six children with UFSK were equally divided into three groups: unilateral renal agenesis (URA), unilateral atrophic kidney (UAK), and unilateral nephrectomy (UNP). Twenty-two age-, weight-, and height-matched healthy children were considered as a control group. The serum creatinine level and first-morning urine microalbumin and creatinine concentrations were determined by the standard methods. Also, the BP profile was determined by ambulatory blood pressure monitoring (ABPM). We found that the serum creatinine level was higher and creatinine clearance was lower in each patient groups compared to those of the control group (p < 0.05). Compared with the controls, each group of patients had mean office, 24-h, daytime, and night-time systolic and diastolic BP values similar to those of the controls (p > 0.05). An inverse correlation was found between the renal size standard deviation scores (SDS) of normal kidneys and 24-h systolic and diastolic BP load SDS in all of the patients (p < 0.05; r = -0.372, r = -0.295, respectively). The observed relationship between renal size SDS and 24-h mean arterial pressure (MAP), systolic and diastolic BP load SDS suggests that children with UFSK should be evaluated by using ABPM for the risk of hypertension.
authors.affiliation: Department of Pediatric Nephrology, Cukurova University School of Medicine, 01330 Balcali, Adana, Turkey. dursunhs@yahoo.com
authors.forename: Hasan
authors.initials: H
authors.lastname: Dursun
authors.forename: Aysun K
authors.initials: AK
authors.lastname: Bayazit
authors.forename: Nurcan
authors.initials: N
authors.lastname: Cengiz
authors.forename: Gulsah
authors.initials: G
authors.lastname: Seydaoglu
authors.forename: Mithat
authors.initials: M
authors.lastname: Buyukcelik
authors.forename: Mustafa
authors.initials: M
authors.lastname: Soran
authors.forename: Aytul
authors.initials: A
authors.lastname: Noyan
authors.forename: Ali
authors.initials: A
authors.lastname: Anarat
mesh_terms: D000293:Adolescent; D018660:Blood Pressure Monitoring, Ambulatory; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007674:Kidney Diseases / Q000175:diagnosis*; D007677:Kidney Function Tests; D008297:Male