[A congenital vascular anomaly--arteriovenous shunt to the right kidney with an aneurysm of the inferior right branch of the renal artery as a cause of asymptomatic hematuria and vasorenal hypertension]. / Vrodena sudova anomaliia--arterio-venozen shunt v desen bubrek s anevrizma na dolen desen klon na renalnata arteriia kato prichina za bezsimptomna khematuriia i vazorenalna khipertoniia.

A case of a 19 years old man with a congenital vascular anomaly is presented: arteriovenous shunt in the right kidney with an aneurysm of the inferior right branch of the renal artery as a cause of asymptomatic hematuria and vasorenal hypertension. The diagnosis was determined with the help of subtraction angiography. The method is recommended for the precise diagnosis of asymptomatic hematuria caused by arteriovenous malformations of the kidneys in order to help for a correct therapeutic decision.

[Urinary magnesium excretion in nephrolithiasis]. / Magnezieva urinna ekskretsiia pri bubrechnokamenna bolest.

Magnesium urine excretion and its correlation with calcium urine excretion were studied in 152 patients with nephrolithiasis by atomic-absorption spectrophotometry. In 14.5% of the patients with unilateral nephrolithiasis and in the 25.6% of the patients with bilateral nephrolithiasis the magnesium urine excretion was lowered. Following calcium loading the magnesiumuria in healthy persons was reliably and positively influenced while in the patients with nephrolithiasis with initial lowered magnesium excretion there was an insignificant increase. The ration MgU/CaU is of special importance for the evaluation of the lithogenic risk. The determination of the Ca-Mg interrelation is obligatory for every patient with nephrolithiasis because of its great practical importance for the treatment of these patients.