Publications by authors named "Nils M Ulvik"
Background And Purpose: Although the evidence is sparse, most urologists advise the insertion of a safety guide wire (SGW) alongside the ureteroscope whenever performing ureteroscopy (URS). The aim of the study was to compare the results of ureteroscopic treatment for ureteral stones at the Oslo University Hospital (OUH), where the SGW is routinely used, with the results at the Haukeland University Hospital (HUH), where the SGW is routinely omitted. The primary goal was to evaluate the success rates of passing the ureteroscope through the orifice, the ability to access the ureteral stone, and the ability to place a ureteral stent when needed after the endoscopy.
View Article and Find Full Text PDFBackground And Purpose: It is generally advised to keep a safety guidewire (SGW) in the ureter alongside the ureteroscope during endoscopy of the upper urinary tract, but little is known of how the SGW influences the forces exerted on the ureteroscope in the ureter. The purpose of this study was to investigate whether the presence of an SGW during ureteroscopy (URS) in a normal clinical setting will influence the pushing and pulling forces exerted on a semirigid ureteroscope.
Patients And Methods: In a 1-year period (2010-2011), 40 patients admitted to Haukeland University Hospital for endoscopic treatment of renal pelvic stone disease were included in a clinical randomized crossover trial measuring the forces needed to move a semirigid ureteroscope during URS.
Objective: The aim of this study was to evaluate diversities in Norwegian urologists' personal preferences in the endoscopic management of ureteral calculi.
Material And Methods: A questionnaire exploring different items of importance for the ureteroscopic management of ureteral calculi was sent to the 124 specialists and residents in urology at the 24 hospitals treating urolithiasis endoscopically in Norway.
Results: A total of 92 physicians answered the questionnaire (response rate 74.