Arsenic exposure is associated with significant upper tract urothelial carcinoma health care needs and elevated mortality rates.

Purpose: The aim of the study was to assess upper tract urothelial carcinoma (UTUC) health care needs and specific mortality rates in an arsenic-exposed region in Northern Chile and compare them to those of the rest of the country.

Material And Methods: Arsenic levels of drinking water were correlated with UTUC hospital discharges and cancer-specific mortality rates. Mortality and hospital admission rate ratios were estimated using a Poisson regression model.

[Single-session extracorporeal shock wave lithotripsy for urinary calculi: factors predicting success after three weeks of follow-up].

Introduction: The aim of this study was to identify predictive factors of success following a single-session of shock wave lithotripsy (SWL) at 3 weeks of follow-up in our center.

Material And Methods: The medical records of 116 patients with solitary urinary calculi who underwent single-session SWL in our department between October 2007 and August 2009 were reviewed. All preoperative unenhanced computed axial tomographies were reviewed by two radiologists blinded to clinical outcome.

[Extracorporeal lithotripsy of urinary calculi: experience with Modulith SL-20 (Storz Medical)].

The results of extracorporeal lithotripsy on 250 patients with renal and ureteral stones are reported. Stone size varied from less than 1 cm (64%), 1 to 2 cm (31%) to over 2 cm (4%). 51% of patients were treated on an ambulatory basis.