6,291 results match your criteria Ureteroscopy

Management of hydronephrosis after radical cystectomy and urinary diversion for bladder cancer: A single tertiary center experience.

Int J Urol 2022 Jun 30. Epub 2022 Jun 30.

Department of Urology, Sapporo Medical University, Sapporo, Hokkaido, Japan.

Objectives: To clarify the incidence of postoperative hydronephrosis and verify the validity of diagnostic and therapeutic approaches for hydronephrosis after cystectomy and urinary diversion for bladder cancer.

Methods: Totally, 290 patients receiving urinary diversion from 2005 through 2017 with complete data were enrolled, including 258 (89.0%) with an ileal conduit and 32 (11. Read More

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MOSES™ pulse modulation technology versus conventional pulse delivery technology: the effect on irrigation fluid temperature during flexible ureteroscopy.

Urolithiasis 2022 Jun 30. Epub 2022 Jun 30.

Department of Urology, University Hospital of Patras, Rio, 26500, Patras, Greece.

To compare the effect of MOSES™ modulation technology to conventional pulse delivery technology on the irrigation fluid temperature (IFT) under different irrigation conditions during flexible ureteroscopy (FURS) in a live-anesthetized porcine model. For this experiment was used one female pig. A percutaneous access was obtained and a 30Fr sheath was placed inside the upper calyceal system. Read More

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A Practical Guide for Intra-Renal Temperature and Pressure Management during Rirs: What Is the Evidence Telling Us.

J Clin Med 2022 Jun 15;11(12). Epub 2022 Jun 15.

Groupe de Recherche Cliniques sur la Lithiase Urinaire, Hôpital Tenon, Sorbonne Université, F-75020 Paris, France.

Introduction: One of the main limitations of Ho:YAG lithotripsy is represented by its advancement speed. The need for faster lithotripsy has led to the introduction of high-power laser equipment. This general trend in increasing Ho:YAG lithotripsy power has certain points that deserve to be considered and analyzed. Read More

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Predicting narrow ureters before ureteroscopic lithotripsy with a neural network: a retrospective bicenter study.

Urolithiasis 2022 Jun 23. Epub 2022 Jun 23.

Department of Urology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, No. 100 Hai Nin Road, Shanghai, 200080, China.

In some patients, the passage of semi-rigid ureteroscopes up the ureter is impossible due to narrow ureteral lumen. We established a neural network to predict the inability of the ureter to accommodate the semi-rigid ureteroscope and the need for active or passive dilatation using non-contrast computed tomography (CT) images. Data were collected retrospectively from two centers of 1989 eligible patients who underwent ureteroscopic lithotripsy with ureteral stones. Read More

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International Alliance of Urolithiasis (IAU) Guideline on Retrograde Intrarenal Surgery.

BJU Int 2022 Jun 22. Epub 2022 Jun 22.

Department of Urology, Biruni University, Medical School, Istanbul, Turkey.

Objectives: The International Alliance of Urolithiasis (IAU) is releasing a series of guidelines on the treatment of urolithiasis. The current guideline is the second document regarding retrograde intrarenal surgery (RIRS), and it is aimed to provide a clinical framework for urologists performing RIRS.

Materials And Methods: After a comprehensive search of RIRS-related literature published between 01/01/1964 and 1/10/2021 from the Pub Med database, a systematic review and assessment were performed to inform a series of recommendations, which were graded using a modified GRADE methodology. Read More

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Ureteral calculi lithotripsy for single ureteral calculi: can DNN-assisted model help preoperatively predict risk factors for sepsis?

Eur Radiol 2022 Jun 22. Epub 2022 Jun 22.

Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095 Jiefang Avenue, Wuhan, Hubei, 430030, China.

Objectives: To explore the utility of radiomics and deep learning model in assessing the risk factors for sepsis after flexible ureteroscopy lithotripsy (FURL) or percutaneous nephrolithotomy (PCNL) in patients with ureteral calculi.

Methods: This retrospective analysis included 847 patients with treatment-naive proximal ureteral calculi who received FURL or PCNL. All participants were preoperatively conducted non-contrast computed tomography scans, and relevant clinical information was meanwhile collected. Read More

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Ureteroscopy with thulium fiber laser lithotripsy results in shorter operating times and large cost savings.

World J Urol 2022 Jun 21. Epub 2022 Jun 21.

Division of Urology, Maine Medical Center, 100 Brickhill Ave, South Portland, ME, 04106, USA.

Purpose: Prolonged ureteroscopy (URS) is associated with complications including ureteral perforation, stricture, and urosepsis. As laser lithotripsy is one of the most common urologic procedures, small cost savings per case can have a large financial impact. This retrospective study was designed to determine if Thulium fiber laser (TFL) lithotripsy decreases operative time and costs compared to standard Holmium:YAG (Ho:YAG) lithotripsy without pulse modulation. Read More

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Robotic Excision of Large, Multi-Focal Ureteral Fibroepipthelial Polyps.

Urology 2022 Jun 18. Epub 2022 Jun 18.

Brady Urological Institute, Johns Hopkins Medicine, 4940 Eastern Avenue, Baltimore, MD 21224 USA. Electronic address:

Ureteral fibroepithelial polyps (UFP) are benign neoplasms of mesodermal origin. In this report, we describe the rare presentation and robotic surgical management of UFP in an adult female. A 25-year-old female with recurrent bilateral UFP s/p multiple ureteroscopic ablations and right partial ureterectomy with ureto-ureteral anastomosis presented with left flank pain. Read More

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Transabdominal laparoscopy and ureteroscopy one-stage surgery in the treatment of bilateral ureteropelvic junction obstruction combined with bilateral renal stones: A case report.

Exp Ther Med 2022 Jul 17;24(1):450. Epub 2022 May 17.

Department of Urology, Affiliated Hospital of Hebei University of Engineering, Handan, Hebei 056004, P.R. China.

Ureteropelvic junction obstruction (UPJO) is a common congenital malformation of the urinary system, which is mostly unilateral and frequently combined with hydronephrosis and kidney stones. The incidence of kidney stones is ~20%, which markedly increases the difficulty and risk of surgery. The present report describes a rare case of bilateral UPJO combined with bilateral renal stones. Read More

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Comparative effectiveness of high-power holmium laser lithotripsy for pediatric patients with kidney and ureteral stones.

J Pediatr Urol 2022 Jun 2. Epub 2022 Jun 2.

Department of Surgery, Division of Pediatric Urology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA; Department of Biostatistics, Epidemiology, and Informatics Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA. Electronic address:

Background: The comparative effectiveness of high-power laser technology for kidney stone surgery in pediatric patients is poorly understood. We compared outcomes for the 120 W Holmium:yttrium-aluminum-garnet (Ho:YAG) laser with MOSES technology to 30 W Ho:YAG laser for pediatric patients undergoing ureteroscopy with laser lithotripsy for kidney and ureteral stones.

Objective: We evaluated the outcomes of the new MOSES laser technology as compared to low-power Ho:YAG lasers commonly used for kidney stone treatment in the pediatric population. Read More

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Outcomes of Mini-Percutaneous Nephrolithotomy in Children and Adolescents: A 10-Year Single-Centre Experience From Kuwait.

Cureus 2022 May 15;14(5):e25022. Epub 2022 May 15.

Urology, Sabah Al Ahmad Urology Centre, Kuwait, KWT.

The current study retrospectively reviewed data for all children and adolescents who underwent mini-percutaneous nephrolithotomy (PCNL) at Ibn Sina Hospital and Sabah Al Ahmad Urology Centre in Kuwait over 10 years. Accordingly, the 40 patients underwent mini-PCNL. Among them, 21 patients (52. Read More

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Primary impact of simultaneous use of double devices through one-working channel when performing flexible ureteroscope with ureteral access sheath for single ureteral stone: In bench and retrospective clinical study.

Int J Urol 2022 Jun 16. Epub 2022 Jun 16.

Division of Urology, Department of Surgery Related, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan.

Objectives: This study aimed to compare the simultaneous use of two devices versus a single device through a single working channel in flexible ureteroscopy using a ureteral access sheath for single ureteral stones.

Methods: In a bench study, the time to (i) set laser fiber, (ii) exchange laser fiber and nitinol basket through working channel, and (iii) pull out the device from working channel were measured 10 times in each step. In a clinical study, 156 patients who underwent flexible ureteroscopy with a ureteral access sheath for a ureteral stone in middle and upper ureter between April 2019 and November 2021 were assessed. Read More

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An in vitro Comparative Assessment of Single-Use Flexible Ureteroscopes Using a Standardized Ureteroscopy Training Model.

Urol Int 2022 Jun 16:1-8. Epub 2022 Jun 16.

Department of Urology, National University Hospital, Singapore, Singapore.

Introduction: Perceived benefits like decreased contamination rates and reduced postoperative incidence of complications after urolithiasis surgery have led to increased adoption of single-use flexible ureteroscopes (su-fURS). Using a validated, standardized simulator model with enhanced "fluoroscopic" capabilities, we performed an in vitro comparative assessment of four commercially available models of su-fURS. Both objective and subjective parameters were assessed in this study. Read More

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The dilemma of 12/14F ureteral access sheath (UAS) usage: a case control study.

BMC Urol 2022 Jun 15;22(1):84. Epub 2022 Jun 15.

Department of Urology, University Hospital Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23562, Lübeck, Germany.

Background: The insertion of a ureteral access sheath (UAS) is a frequent procedure during flexible ureteroscopy (fURS) to facilitate kidney stone treatment. The aim of this study was to investigate the influence of 12/14 French (F) UAS on fURS outcomes.

Methods: We performed a retrospective monocentric analysis of fURS procedures conducted at the Department of Urology (University Hospital Schleswig-Holstein, Lübeck, Germany) for kidney stone treatment via lithotripsy or basket stone retrieval between September 2013 and June 2017. Read More

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Comparison of flexible ureteroscopy and mini-percutaneous nephrolithotomy in the treatment for renal calculi larger than 2 cm: a matched-pair analysis.

Urolithiasis 2022 Jun 15. Epub 2022 Jun 15.

Department of Urology, Qilu Hospital of Shandong University, Jinan, Shandong, China.

To compare the effectiveness and safety of flexible ureteroscopy and mini-percutaneous nephrolithotomy for renal calculi > 2 cm and perform subgroup analysis of stone length and age. Patients received mini-percutaneous nephrolithotomy or flexible ureteroscopy in Qilu Hospital of Shandong University from 2016.01 to 2021. Read More

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Comparing Pediatric Ureteroscopy Outcomes with SuperPulsed Thulium Fiber Laser and Low-Power Holmium:YAG Laser.

J Urol 2022 Jun 15:101097JU0000000000002666. Epub 2022 Jun 15.

Department of Urology, Boston Children's Hospital, Boston, Massachusetts.

Purpose: The thulium fiber laser is a promising new lithoptripsy technology never before studied in the pediatric population. Our center adopted the first platform in North America, the SuperPulsed thulium fiber laser (SPTF). We aimed to compare outcomes in pediatric ureteroscopy using the SPTF to those using the gold standard, low-power holmium:yttrium-aluminum-garnet (Ho:YAG) laser. Read More

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Ureteral fibroepithelial polyp protruding into the bladder which mimics a bladder tumour: a case report and literature review.

Transl Androl Urol 2022 May;11(5):720-726

Department of Urology, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Republic of Korea.

Background: Ureteral fibroepithelial polyp is a rare benign lesion of the urinary tract. The incidence of the disease has been increasing recently; however, the aetiology of this tumour remains unclear. Early diagnosis and management are important, and endoscopic treatment is increasingly being preferred worldwide. Read More

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[The assistant effects of porcine fibrin sealant in improving stone clearance rate in flexible ureteroscopy lithotripsy in porcine kidney model].

Zhonghua Yi Xue Za Zhi 2022 Jun;102(22):1660-1665

Department of Urology, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China.

To investigate the feasibility of using a porcine fibrin sealant to wrap and remove kidney calculi fragments through an isolated porcine kidney model. In the isolated porcine kidney stone model (implanted with 100 mg, air dried, ≤1 mm human stone fragments, =6;implanted with 100 mg, air dried, ≤3 mm human stone fragments, =6), the ureteral soft mirror combined with the 12/14Fr UAS was used to test the effect of stone extraction using only two stone extraction methods: basket extraction (control group, ≤1 mm stone fragments, =3; ≤3 mm stone fragments, =3) and basket-sealant extraction (test group, ≤1 mm stone fragments, =3; ≤3 mm stone fragments, =3). Compare the stone removal rate and operation time of the two stone retrieval methods. Read More

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Application of Suctioning Ureteral Access Sheath during Flexible Ureteroscopy for Renal Stones Decreases the Risk of Postoperative Systemic Inflammatory Response Syndrome.

Int J Clin Pract 2022 12;2022:9354714. Epub 2022 Mar 12.

Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.

Purpose: To clarify the efficiency and outcomes of suctioning ureteral access sheath (UAS) during flexible ureteroscopic lithotripsy (fURL) for the management of renal stones.

Methods: Between January 2017 and January 2019, a total of 444 patients with renal stones undergoing fURL were divided into suctioning UAS and nonsuctioning UAS groups. The outcomes of patients in both groups were compared using a matched-pair analysis (1 : 1 scenario). Read More

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Learning curves of flexible ureteroscopy (275 cases) and prone percutaneous nephrolithotomy (73 cases) in paediatric stones: data from 348 children.

J Endourol 2022 Jun 7. Epub 2022 Jun 7.

Capital Medical University Affiliated Beijing Friendship Hospital, 26455, No. 95, Yongan Road, Xicheng District, Beijing, China., Beijing, China, 100050;

Objectives: To evaluate learning curves in pediatric flexible ureteroscopy (FURS) and pediatric prone percutaneous nephrolithotomy (PCNL) by a single surgeon with experience in adult endourological procedures.

Materials And Methods: Children who were diagnosed with nephrolithiasis and treated with PCNL or FURS from June 2014 to April 2019 were analyzed. Patient demographics, stone characteristics, stone-free rate (SFR), complication rate (CR) were reported. Read More

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Incidence and safety outcomes associated with active stone removal procedures (ASRP): a comparison between neurological and non-neurological patients using the French National Health Data Base.

World J Urol 2022 Jul 4;40(7):1821-1827. Epub 2022 Jun 4.

Department of Urology, Claude Huriez Hospital, CHU Lille, Univ Lille, Lille University Hospital, 1 rue Polonovski, 59000, Lille Cedex, France.

Purpose: To compare the incidence and the safety outcomes associated with active stone removal procedure (ASRP) between neurological and non-neurological patients.

Materials And Methods: The present study was conducted using the data issued from the French National Health Data Base. All patients that have been hospitalized to undergo an ASRP between January 1 2012 and December 31 2018 were included and allocated to four neurological groups (multiple sclerosis, spinal dysraphism, paraplegia, tetraplegia) and one non-neurological group. Read More

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Predictors of successful emergency shock wave lithotripsy for acute renal colic.

Urolithiasis 2022 Jun 3. Epub 2022 Jun 3.

Department of Urology, Urology and Nephrology Hospital, Faculty of Medicine, Assiut University, Assiut, 71515, Egypt.

The role of emergency shockwave lithotripsy (SWL) in persistent pain control in patients with ureteral stones is not well established. The aim of this study is to evaluate efficacy as well as the predicting variables for successful early SWL patients with symptomatic ureteral stones. Eighty-six patients with a persistent renal colic secondary to single ureteral stone (6-12 mm) were prospectively enrolled in this study. Read More

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Establishment of mini-pig model of ureteral stricture by electrocoagulation under ureteroscopy.

Urology 2022 May 30. Epub 2022 May 30.

Department of Urology, Third Affiliated Hospital of Zunyi Medical University, Zhuyi, Guizhou 563000, China. Electronic address:

Objective: To establish a mini-pig model of ureteral stricture by using electrocoagulation under ureteroscopy.

Materials And Methods: Twelve female mini-pigs were included. Their ureters on one side and contralateral side were randomly divided into electrocoagulation and control groups, respectively. Read More

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Efficacy of Intramuscular Ketorolac for Preventing Renal Colic Post Stent Removal: Randomized Controlled Trial.

J Urol 2022 Jun 2:101097JU0000000000002750. Epub 2022 Jun 2.

Department of Urology, University of Texas Southwestern Medical Center, Dallas, Texas.

Purpose: The treatment of stones ureteroscopically is associated with postoperative pain, thought to be due largely to the use of ureteral stents. In some, stent removal precipitates renal colic that can last from minutes to hours. We sought to determine if intramuscular ketorolac could reduce post-stent removal renal colic. Read More

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Role of low- high-power laser in the treatment of lower pole stones: prospective non-randomized outcomes from a university teaching hospital.

Ther Adv Urol 2022 Jan-Dec;14:17562872221097345. Epub 2022 May 26.

Department of Urology, University Hospital Southampton NHS Foundation Trust, Southampton, UK.

Introduction: Ureteroscopy and laser stone fragmentation [flexible ureteroscopy and laser lithotripsy (FURSL)] has risen over the last two decades. Laser technology has also evolved over the time, shifting from low- to high-power lasers with the addition of MOSES technology that allows for 'dusting and pop-dusting' of stones. The aim of the study was to look at the outcomes of FURSL in lower pole stones (LPS) using low- and high-power lasers. Read More

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Development of a novel predictive model for a successful stone removal after flexible ureteroscopic lithotripsy based on ipsilateral renal function: a single-centre, retrospective cohort study in China.

BMJ Open 2022 Jun 1;12(6):e059319. Epub 2022 Jun 1.

Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, People's Republic of China

Objectives: The aims of this study were to investigate the effect of preoperative ipsilateral renal function on the success of kidney stone removal with flexible ureteroscopic lithotripsy and to develop a predictive model based on the results.

Design: Retrospective cohort study.

Setting: Data from the 2001-2012 period were collected from the electronic records of West China Hospital, Sichuan University. Read More

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Retrospective analysis of stone basket combined with flexible ureteroscope holmium laser lithotripsy in the treatment of lower calyceal stones.

D Jinhua D Wanlin

Eur Rev Med Pharmacol Sci 2022 May;26(10):3430-3436

Department of Urology, Yuechi People's Hospital, Guang'an, Sichuan, China.

Objective: The aim of the study was to investigate the efficacy of stone baskets combined with flexible ureteroscope holmium laser lithotripsy (FURL) in the treatment of lower calyceal stones (LCS).

Patients And Methods: A total of 216 patients with LCS who underwent FURL in our hospital were analyzed retrospectively and divided into observation group (n=129, with stone basket) and control group (n=87, without the stone basket), according to whether the stone basket was used during FURL. The operation time, stone size, stone clearance rate, steinstrasse incidence rate and complication rate were collected and analyzed. Read More

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One-stage versus staged ureteroscopy and percutaneous nephrolithotomy for simultaneous ureteral and renal stones.

Curr Urol 2022 Mar 15;16(1):15-19. Epub 2022 Feb 15.

Urology Department, Urology and Nephrology Center, Mansoura University, Mansoura, Egypt.

Objectives: This study is aimed to investigate the outcome of one-stage ureteroscopy (URS) and percutaneous nephrolithotomy (PCNL) for simultaneous ureteral and renal stones over 10years at a tertiary urology institute.

Materials And Methods: We retrospectively analyzed the data of patients who were operated on for simultaneous ureteral and renal stones from January 2011 to December 2020. Patients were divided into 2 groups: group A, who underwent one-stage URS and prone PCNL, and group B, who underwent staged procedures. Read More

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