ESPN 51th Annual Meeting

ESPN 2018


 
Comparison of blood pressures between children with unilateral scarred and unilateral hypoplastic kidney
ROYALA BABAYEVA 1 SEBUH KURUĞOĞLU 3 SEHA SAYGILI 2 SERMIN ÖZCAN 2 NUR CANPOLAT 2 LALE SEVER 2 SALIM ÇALIŞKAN 2

1- DEPARTMENT OF PEDIATRICS, İSTANBUL UNIVERSITY CERRAHPAŞA FACULTY OF MEDICINE
2- DEPARTMENT OF PEDIATRICS, DIVISION OF PEDIATRIC NEPHROLOGY, İSTANBUL UNIVERSITY CERRAHPAŞA FACULTY OF MEDICINE, İSTANBUL, TURKEY
3- DEPARTMENT OF PEDIATRIC RADIOLOGY, ISTANBUL UNIVERSITY CERRAHPAŞA FACULTY OF MEDICINE, ISTANBUL, TURKEY
 
Introduction:

 It is suggested that hypoplastic and/or scarred kidneys may cause hypertension. In this study, we aimed to investigate the blood pressure(BP) by ambulatory blood pressure monitoring(ABPM) in patients with both unilateral hypoplastic kidney and unilateral scarred kidney.

Material and methods:

 This cross-sectional single center study included 55 patients with unilateral renal hypoplastic or scarred kidneys aged between 5 and 18 years. Renal ultrasonography was performed in all patients. Total, small and normal kidney volumes were calculated and indexed to height. Patients were classified according to their DMSA images; 26 patients had renal hypoplasia(RH) and 29 patients had renal scarring(RS). Anthropometric measurements were obtained and their standard deviation score(SDS)s were calculated. All subjects were evaluated by both casual and ambulatory BP measurements. The height specific SDSsof BPs were calculated. Hypertension was classified according to the American Heart Association recommendations.

Results:

There were no significant differences in height SDS, BMI SDS, GFR, total, small or normal kidney volume indexes between the patients with RH and RS. Patients with RS had significantly higher daytime MAP-SDS(p=0.040), daytime systolic BP-SDS(p=0.039) and nighttime systolic BP-SDS(p=0.047) compared to the patients with RH. Dipping in systolic and diastolic BP did not differ between the two groups. Sustained hypertension was detected in 4 patients in the RS group, but not in the RH group(p=0.049).

Conclusions:

 This study reveals that patients with scarred kidneys have an increased risk of hypertension compared to the patients with hypoplastic kidneys.