OBJECTIVE Our aim was to evaluate the clinical profile, treatment, and outcome of ceftriaxone-associated postrenal acute renal failure (PARF) in children. METHODS We retrospectively studied 31 consecutive cases from 2003 to 2012 for PARF after ceftriaxone treatment. There was no past history of urolithiasis or nephropathy in these children. RESULTS The average time of ceftriaxone administra...

Some simple mathematical formulae to calculate the volumes of proximal pyeloureteral reflexive systems are presented, and the results are compared to bladder capacity values. Using the results of the calculi, the author discusses possible implications of severe urinary sequestration in the pyeloureteral systems. Using geometrical and topological approximations we calculate the volumes of ureter...

OBJECTIVE To compare the usefulness of unenhanced spiral CT (UCT) with that of excretory urography (EU) in patients with acute flank pain. MATERIALS AND METHODS Thirty patients presenting with acute flank pain underwent both UCT and EU. Both techniques were used to determine the presence, size, and location of urinary stone, and the presence or absence of secondary signs was also evaluated. T...

OBJECTIVE To demonstrate the various applications of CT-virtual endoscopy, for the assessment of urinary tract abnormalities. MATERIALS AND METHODS Sixty-three patients were evaluated by CT-virtual endoscopy (49 CT-cystoscopy; 14 CT-pyeloureteroscopy). CT-cystoscopy was obtained for follow-up of bladder tumor (n=21), radiologic suspicion (n=12) or radiologic evidence of urinary tract lesion (...

PURPOSE To evaluate hyoscine N-butyl bromide (HBB) and three different alpha-1 blockers in the treatment of distal ureteral stones. MATERIALS AND METHODS A total of 140 patients with stones located in the distal tract of the ureter with stone diameters of 5 to 10mm were enrolled in the present study and were randomized into 4 equal groups. Group 1 received HBB, Group 2 received alfuzosin, Gro...

PURPOSE We assessed the role of non-contrast spiral computerized tomography (CT) for prediction of a favorable clinical outcome in patients with ureterolithiasis, presenting with acute flank pain. MATERIALS AND METHODS Consecutive 185 patients having acute flank pain were prospectively evaluated with physical examination, urinalysis and hemogram, and non-contrast spiral CT. Size (greatest wid...

PURPOSE To compare efficacy and safety of holmium:YAG laser and pneumatic lithotripter in the management of ureteral stones. MATERIALS AND METHODS One hundred and twelve patients with 1 to 2 cm ureteral calculi were selected for pneumatic or holmium:YAG laser transurethral ureterolithotripsy (56 patients in each group). Ultrasonography and plain abdominal x-ray were performed for all the pati...

PURPOSE Assessment of safety and efficacy of extracorporeal shockwave lithotripsy versus semi-rigid ureteroscope with lithoclast for treatment of large proximal ureteral stones. MATERIALS AND METHODS The study included 147 patients with large upper ureteral stones. SWL and ureteroscopy were performed in 71 and 76 patients respectively. Patients in the SWL group were treated with Siemens: - Mo...

The aim of this study was to evaluate the clinical value of the PolyScope™ endoscope system in the treatment of upper urinary calculi with a diameter of <2 cm. A total of 86 patients hospitalized with upper urinary tract calculi were included. The patients were placed under general or spinal anesthesia and in a lithotomy position. Following the dilation of the ureter, a guide wire was inserted ...