Analysis of the Efficacy and Safety of Increasing the Energy Dose Applied Per Session by Increasing the Number of Shock Waves in Extracorporeal Lithotripsy: A Prospective and Comparative Study.

Purpose: To evaluate the efficacy and safety of increasing the energy dose in treating urinary lithiasis with extracorporeal lithotripsy through an expanded number of Shock Waves Per Session (SWPS).

Materials And Methods: a randomized, prospective, and comparative study was performed with patients with renal or ureteral lithiasis from 2011 to 2014. Two groups were studied: Group A (n = 136), treated with 3500 SWPS, and Group B (n = 171), subjected to an expanded treatment with 7000 SWPS.

[New strategies and protocols in SWL.].

Objective: An update of the new treatment strategies in extracorporeal lithotripsy as a valid therapeutic alternative in the management of urinary calculi.

Methods: We performed a search and review of the most recent literature which responded to the terms "best practices", "update", "optimization", "practice pattern" in lithotripsy. Only articles written in English or Spanish were selected.

[Comparative study between analgesic efficacy and safety of meperidine compared with lidocaine periprostatic infiltration in transrectal ultrasound guided prostate biopsy].

Objectives: To assess the efficacy of intravenous analgesia with meperidine compared to periprostatic plexus infiltration with lidocaine, and safety of periprostatic local anesthesia.

Materials And Methods: A prospective randomized study with 100 patients undergoing first or second prostate biopsy. We distribute patients in two groups, group A (50 patients) which was administered 50 mg of intravenous meperidine and group B (50 patients) receiving 5 mL of lidocaine 2% in the angle between prostate and seminal vesicles.