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  • Title: Arterial hypertension with brachydactyly in a 15-year-old boy.
    Author: Litwin M, Jurkiewicz E, Nowak K, Kościesza A, Grenda R, Malczyk K, Kościesza I.
    Journal: Pediatr Nephrol; 2003 Aug; 18(8):814-9. PubMed ID: 12811651.
    Abstract:
    Autosomal dominant brachydactyly with hypertension is the only form of monogenic hypertension which is not sodium dependent. The disease is characterized by brachydactyly type E, short stature, arterial hypertension and aberrant loop of posterior inferior cerebellar artery (PICA) causing neurovascular conflict. So far the syndrome was described in one family in Turkey and two in Canada. We report a case of a 15-year-old boy who was admitted because of arterial hypertension 160/100 mmHg. He complained also of attacks of bilateral numbness of hands with deterioration of visual field. Examination revealed short stature (156 cm) and bone deformities of hands and feet consistent with brachydactyly type E. Ophthalmoscopy showed mild narrowing of retinal arteries. Serum electrolytes, blood gases, and renal function were normal. Renin activity and aldosterone concentrations were raised, and 24-h urinary excretion of catecholamines and urinary steroid profile were in normal range. Renal Doppler ultrasound was normal, but renal scintigraphy suggested vascular changes in the left kidney. Echocardiographic examination, besides mild left ventricular hypertrophy, was normal. Magnetic resonance angiography (angio-MR) revealed bilateral abnormal PICA loops and neurovascular conflict. Spiral angiotomography of renal arteries revealed narrow additional left renal artery. Both nonconsanguineous parents and younger brother were healthy, with normal height, without bone deformities, and had normal intracranial vessels. Amlodipine and metoprolol were given, and blood pressure lowered to 143/87. Adding rilmenidine gave no effect and enalapril was then added. It led to further improvement in blood pressure control. To our knowledge, this is the first pediatric description of a sporadic form of autosomal dominant brachydactyly with hypertension with abnormalities of brain and renal arteries.
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