Spontaneous improvement of hypertension in multicystic dysplastic kidney: a case report.
We report a case of transitory hypertension associated with unilateral multicystic dysplastic kidney (MCDK). A newborn girl with MCDK, detected by prenatal ultrasonography, was conservatively treated and has been followed for 18 months at the Pediatric Nephrourology Unit (HC-Belo Horizonte, Brazil). Arterial hypertension was observed at about 4 months of age and was associated with high levels of plasma renin activity and circulating angiotensin, and also with changes in renal Doppler ultrasonography. For these reasons, a nephrectomy was initially proposed. However, a spontaneous improvement of blood pressure levels was noticed at about 10 months of age. Serial Doppler ultrasonography showed involution of the affected renal volume and decreased arterial flow. The anatomical improvement was observed simultaneously with normalization of the peripheral renin and angiotensin values. The literature is reviewed regarding the relationship between hypertension and MCDK.
Oliveira
Eduardo A
EA
Pediatric Nephrourology Unit, Department of Pediatrics, Hospital das Clínicas, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil. eduolive@medicina.ufmg.br
Silva
Ana Cristina Simões
AC
Rabelo
Eli Armando Siqueira
EA
Filgueiras
F Freire
FF
Pereira
Alamanda K
AK
Mesquita
Francesca M
FM
D001794:Blood Pressure / Q000502:physiology; D005260:Female; D006801:Humans; D006977:Hypertension, Renal / Q000000981:diagnostic imaging / Q000209:etiology* / Q000503:physiopathology; D007223:Infant; D007677:Kidney Function Tests; D021782:Multicystic Dysplastic Kidney / Q000150:complications* / Q000000981:diagnostic imaging / Q000503:physiopathology; D011877:Radionuclide Imaging; D012075:Remission, Spontaneous