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Diagnosis of Renovascular Hypertension with Captopril Renal Scintigraphy in a Patient with a Solitary Kidney

Servizio di Medicina Nucleare, Policlinico S. Orsola-Malpighi, Bologna, Italy
Ospedale per gli Infermi, Faenza, Italy

Correspondence: For correspondence or reprints contact: Dr. Stefano Fanti, Servizio di Medicina Nucleare, Policlinico S. Orsola-Malpighi, Via Albertoni 15, 1-40138 Bologna, Italy.

ABSTRACT

A patient with a solitary kidney due to renal agenesis and contralateral kidney perfusion impairment due to renal artery stenosis was successfully treated with percutaneous transluminal renal angioplasty. Preintervention diagnostic work-up included captopril renal scintigraphy, which was suggestive of high probability of renovascular hypertension. Scintigraphic assessment 2 mo after angioplasty failed to show any abnormality after captopril administration, a finding in line with blood pressure beneficial response to renal artery revascularization. A 12-mo follow-up confirmed cure of hypertension.