Multicenter study on the use of gemcitabine to prevent recurrence of multiple-recurring superficial bladder tumors following intravesical antiblastic agents and/or BCG: evaluation of tolerance.

Objectives: The treatment of choice for superficial bladder TCC is endoscopic resection, followed or not by intravesical immuno/chemotherapy. Some patients are not responders to common intravesical therapy and are more exposed to disease progression. In this case the suitable treatment is radical cystectomy.

Urinary stone size: comparison of abdominal plain radiography and noncontrast CT measurements.

Background And Purpose: To compare urinary stone size as measured by abdominal plain radiography (AXR) with stone size as measured by noncontrast three-dimensional spiral CT in patients with acute renal colic.

Patients And Methods: Patients presenting to the emergency room of a single institution with urinary stones that were visible on both AXR and noncontrast spiral CT were identified. Two radiologists blinded to the clinical outcomes separately and randomly reviewed all films and measured maximum longitudinal (craniocaudal) and transverse (anteroposterior) stone diameters.

Laparoscopic pyeloplasty with concomitant pyelolithotomy.

Purpose: We present our experience with laparoscopic pyeloplasty plus pyelolithotomy in patients in whom stones were not the cause of ureteropelvic junction obstruction.

Materials And Methods: A transperitoneal approach was used for laparoscopic pyeloplasty and pyelolithotomy in 19 patients (20 renal units). Before ureteropelvic junction repair stones were extracted through a small pyelotomy that was eventually incorporated into the final pyeloplasty incision.

Infundibular stenosis after percutaneous nephrolithotomy.

Purpose: Acquired infundibular stenosis can develop after percutaneous nephrolithotomy. We review our experience with infundibular stenosis after this procedure.

Materials And Methods: We evaluated the records of patients diagnosed with infundibular stenosis after percutaneous nephrolithotomy was performed at our institution between 1995 and 2000.

[Endourologic treatment of transitional cell carcinoma of the upper urinary tract].

Nephrourete-rectomy with excision of a bladder cuff has been the standard treatment of the upper urinary tract transitional cell carcinoma. The very indolent behavior (GI, II, Ta, T1) of more than 50% and up to 82% of the upper urinary tract tumors treated with nephroureterectomy in different series in conjunction with the advent of sophisticated endourological techniques have permitted in certain cases alternative treatments using a conservative approach with either ureteropyeloscopy or percutaneous access. Ureteroscopy is reserved for ureteral tumors and small, simple tumors of the renal pelvis (< 1.

[Percutaneous treatment of calculosis in caliceal diverticulosis: 13-year experience].

We report our experience with the composition and management of caliceal diverticular stones for the past 13 years at our institution. Fourty patients with caliceal diverticular stones were treated percutaneously at Long Island Jewish Medical Center. The size of the diverticula ranged from 1 to 4.