Introduction: Flexible ureteroscopy (fURS) is an endoscopic procedure for the minimally invasive treatment of ureteral and renal calculi. Due to improvements in technique and ureteroscopic instrumentation over the past two decades, complications associated with URS are infrequent. However, in the event of an unexpected device malfunction or failure, the operating surgeon must employ prompt, res...

OBJECTIVE The aim of this study was to compare the clinical efficacy and safety of retroperitoneal laparoscopic and open surgery for the correction of retrocaval ureter. PATIENTS AND METHODS Clinical data of 14 patients with retrocaval ureter were analyzed retrospectively. Among them, nine were treated by open surgical therapy and five by retroperitoneal laparoscopic surgery. The ureter was t...

The relaxing property of the K(+) channel opener and nitric oxide donor nicorandil and the new K(+) channel opener PKF 217-744b was investigated on isolated human ureteral tissue in vitro and in intact ureters of anesthetized pigs in vivo. In addition, nicorandil and its antagonists, glibenclamide and methylene blue, were tested on isolated pig ureter tissue in vitro. Nicorandil decreased the f...

INTRODUCTION The inguinal approach to the distal part of the ureter allows the surgeon to perform various types of procedures and is considered to be one of the minimally invasive techniques in pediatric surgery. We aim to describe our initial experience with the surgery of the distal ureter performed through an inguinal mini-incision. MATERIAL AND METHODS Between March 2012 and June 2013, 8 ...

Congenital anomalies affecting the ureter-bladder junction are frequent in newborns and are often associated with other developmental defects. However, the molecular and morphological processes underlying these malformations are still poorly defined. In this study, we identified the leukocyte antigen-related (LAR) family protein tyrosine phosphatase, receptor type, S and F (Ptprs and Ptprf [als...

A case of localized amyloidosis of the distal ureter in a 51-year-old man is described. Pertinent features of previously reported cases are described, and the difficulty of distinguishing this entity from primary carcinoma of the ureter is discussed.