Novel dual-lumen ureteral stents provide better ureteral flow than single ureteral stent in ex vivo porcine kidney model of extrinsic ureteral obstruction.

Objectives: In the instance of extrinsic ureteral obstruction, indwelling ureteral stents have a high failure rate. Although technically challenging, simultaneous insertion of two ipsilateral stents can achieve better flow rates with time. A novel dual-lumen stent, composed of two adhered ureteral stents, offers the additional benefit of easier placement than a single guidewire.

Imaging characteristics of minimal fat renal angiomyolipoma with histologic correlations.

Objectives: To review our experience with minimal fat angiomyolipomas (AMLs) and correlate the confirmed pathologic diagnosis with preoperative radiologic features to evaluate the feasibility of an accurate diagnosis preoperatively. On rare occasions, renal AMLs contain minimal amounts of fat that are not identified on cross-sectional imaging.

Methods: From November 1998 to August 2003, 6 patients (seven lesions) underwent renal surgery with the preoperative diagnosis of renal cell carcinoma as determined by preoperative imaging studies, and the finding of AML was unexpected.

Laparoscopic nephron-sparing surgery for the small exophytic renal mass.

Objectives: Nephron-sparing surgery has emerged as the treatment of choice for the incidentally detected small renal mass, especially those less than 4 cm in size. We describe our technique and experience with the laparoscopic excision of these lesions.

Methods: Between June 2001 and October 2003, 20 patients underwent nephron-sparing surgery at our institution.

Combined ureterorenoscopy and shockwave lithotripsy for large renal stone burden: an alternative to percutaneous nephrolithotomy?

Purpose: To investigate the feasibility and initial outcomes of a combination of ureterorenoscopy (URS) using holmium laser lithotripsy and extracorporeal shockwave lithotripsy (SWL) in a single outpatient session for the treatment of large renal stone burdens in patients refusing or unsuitable for percutaneous nephrolithotomy (PCNL).

Patients And Methods: Fourteen patients with a mean age of 52.7 years (range 34-81 years) having a mean stone burden of 847 mm2 (range 58 mm2-1850 mm2) were treated with combined URS laser lithotripsy and SWL as an alternative to PCNL.

Effect of neonatal circumcision on penile neurologic sensation.

Objectives: To evaluate penile sensory thresholds in neonatally circumcised and uncircumcised men.

Methods: We evaluated 125 patients, 62 uncircumcised men and 63 neonatally circumcised men. All patients completed the Erectile Function domain of the International Index of Erectile Function questionnaire.

Surgery for localized prostate cancer after renal transplantation.

Objective: To investigate the feasibility of perineal radical prostatectomy (RP) in renal transplant recipients with localized prostate cancer.

Patients And Methods: The study comprised seven consecutive renal transplant patients who had a perineal RP between May 1991 and February 2004. All available clinicopathological data were reviewed.