ABSTRACT
Between August 1993 and Apri1 1994, intrarenal arterial color duplex Doppler sonography was performed on 55 patients(110 kidneys) with acute ureteral obstruction and 12 patients(24 kidneys) with painless ureteral obstruction by unilateral ureteral stones to assess renal hemodynamic changes and its clinical applications. The mean resistive index(RI) of the doppler waveforms obtained on the acutely obstructed 55 kidneys(0.663+/-0.055) was significantly higher than that of the contralateral normal kidneys (0.613+/-0.052) (P0.05). There was no correlation between the levels of ureteral obstruction and intrarenal RI values(P>0.05). The RIs of 3 significantly obstructed kidneys decreased after relief of obstruction. We conclude that the RI is easily obtained and measured, and it would provide important physiological informations on renal vascular impedance in acute ureteral obstruction. Renal doppler findings could be the one of the criteria for assessing the upper urinary tract obstruction.
Subject(s)
Humans , Electric Impedance , Hemodynamics , Kidney , Ultrasonography, Doppler , Ureter , Ureteral Obstruction , Urinary TractABSTRACT
Bilateral adrenal tuberculosis is a rare disease and often occurs bilaterally. We report a case of bilateral adrenal masses due to tuberculosis with adrenal insufficiency. The patient was a 39- year-old man who had complained of intermittent pain of right upper quadrant and general weakness. The plasma levels of cortisol and catecholamine were normal. The levels of 24-hour urinary catecholamine and VMA were also normal. But the levels of 24-hour urinary 17- hydroxycorticosteroids and 17-ketosteroids were reduced. Abdominal CT showed about 6.5 x4.8 x 5.4cm sized left adrenal mass and 4.0 x 2.8 x 3.6cm sized right adrenal mass with calcification. The result of sono-guided percutaneous needle biopsy was adrenal tuberculosis. The patient was treated with antituberculous chemotherapy and hormonal replacement. But the masses are unchanged during 5-months follow-up.