Hyponatremic-Hypertensive Syndrome in an 18-Month-Old Male Child

An eighteen-month-old boy presented with polyuria, polydipsia, hypertension, severe hyponatremia, metabolic alkalosis and nephrotic-range proteinuria. Hypertension was drug resistant. Renal artery angiogram revealed right renal artery occlusion. Nonfunctional right kidney was also detected on the nuclear renal scan. As percutaneous transluminal renal artery angioplasty was not appropriate for our patient, nephrectomy was performed. Right nephrectomy resulted in the resolution of all the symptoms. Rarity of hyponatremic hypertensive syndrome in children may project its under-recognition. We aimed to increase awareness of early diagnosis of HHS among polyuric, hypertensive and hyponatremic children in order to prevent renal damage and life-threatening complications