...Zhiyong Xiong; Chen Li; Keming Huang; Zhen Han; Shuai Wu Introduction: The aim of the study was to compare the efficacy of a flexible-tip ureteral access sheath (F-UAS) with a traditional non-flexible ureteral access sheath (T-UAS) in the treatment of renal lower calyx stones. Methods...

...Guanghua Peng; Jin Kuang; Yijian Chen; Xin Huang; Leming Song; Xiaolin Deng Introduction: The aim of this study was to evaluate the safety and efficacy of flexible ureteroscopy using a tip-flexible pressure-controlling ureteral access sheath (TFPC-UAS) for renal stones in children. Methods...

...Ibrahim Can Aykanat; Melih Balci; Muhammed Fevzi Kilinckaya; Serkan Akdemir; Cagdas Senel; Ozer Guzel; Yilmaz Aslan; Turan Turhan; Murat Arslan; Cagri Guneri; Altug Tuncel Introduction: The aim of the study was to investigate the effect of the diameter of the ureteral access sheath (UAS) used...

... pyelographic and CT-based infundibulopelvic angle (IPA) have been confirmed as independent risk factors for both CD ≥2 and SIRS. Greater maximal median stone diameter and female gender were significantly associated only with a higher CD ≥2 prevalence, but not with SIRS. The influence of ureteral access sheath...

... lumen. Method: We present an innovative technique by using a hydrophilic guidewire and a hydrophilic ureteral access sheath for the ‘first-line’ catheterization and management of ‘difficult’ urethral strictures. We used this technique in 10 extremely difficult cases of strictures present in all...