Outcomes and considerations for retrograde intrarenal surgery (RIRS) in the setting of multiple and large renal stones (>15 mm) in children: Findings from multicentre and real-world setting.

Purpose: The aim of this study is to evaluate the outcomes of retrograde intra renal surgery (RIRS) in the setting of large or multiple stones in children (<18 years).

Materials And Methods: Retrospective analysis was performed of paediatric RIRS cases at nine centres worldwide over a 6-year period. Patients were divided into two groups: Group 1 had a single stone <15 mm.

Influence of Early Apical Release on Outcomes in Endoscopic Enucleation of the Prostate: Results From a Multicenter Series of 4392 Patients.

Objective: To evaluate outcomes after laser endoscopic enucleation of the prostate (EEP) stratified by whether early apical release (EAR) was performed or not.

Methods: We retrospectively reviewed patients with clinical benign prostatic hyperplasia who underwent EEP with holmium or thulium fiber laser in 8 centers (January 2020-January 2022).

Exclusion Criteria: previous prostate/urethral surgery, prostate cancer, pelvic radiotherapy, concomitant lower urinary tract surgery.

The Utility and Safety of Ureteral Access Sheath During Retrograde Intrarenal Surgery in Children.

Objective: To compare retrograde intrarenal surgery (RIRS) with and without ureteral access sheath (UAS) in different pediatric age groups.

Methods: The data of RIRS for kidney stone in children were obtained from 9 institutions. Demographic characteristics of patients and stones, intraoperative and postoperative results were recorded.

Incidence of urinary incontinence following endoscopic laser enucleation of the prostate by en-bloc and non- en-bloc techniques: a multicenter, real-world experience of 5068 patients.

We aim to evaluate the incidence of incontinence following laser endoscopic enucleation of the prostate (EEP) comparing en-bloc (Group 1) versus 2-lobe/3-lobe techniques (Group 2). We performed a retrospective review of patients undergoing EEP for benign prostatic enlargement in 12 centers between January 2020 and January 2022. Data were presented as median and interquartile range (IQR).

Results from a global multicenter registry of 6193 patients to refine endoscopic anatomical enucleation of the prostate (REAP) by evaluating trends and outcomes and nuances of prostate enucleation in a real-world setting.

Purpose: To collect a multicentric, global database to assess current preferences and outcomes for endoscopic enucleation of the prostate (EEP).

Methods: Endourologists experienced in EEP from across the globe were invited to participate in the creation of this retrospective registry. Surgical procedures were performed between January 2020 and August 2022.

Comparison Between Thulium Fiber Laser and High-power Holmium Laser for Anatomic Endoscopic Enucleation of the Prostate: A Propensity Score-matched Analysis from the REAP Registry.

Background: Different lasers have been developed for treatment of benign prostatic hyperplasia, with no definitively superior technique identified to date.

Objective: To compare surgical and functional enucleation outcomes in real-world multicentre practice using high-power holmium laser (HP-HoLEP) and thulium fiber laser enucleation of the prostate (ThuFLEP) for different prostate sizes.

Design, Setting, And Participants: The study included 4216 patients who underwent HP-HoLEP or ThuFLEP at eight centers in seven countries between 2020 and 2022.

Influence of pre-stenting on RIRS outcomes. Inferences from patients of the Global Multicentre Flexible Ureteroscopy Outcome Registry (FLEXOR).

Background: Retrograde Intrarenal Surgery (RIRS) is recommended as an alternative to percutaneous nephrolithotomy for stones up to 2 cm. Pre-stenting before RIRS remains controversial with various studies differing in outcomes and recommendations. We aim to understand how pre-stenting influences surgical outcomes.

Comparison of Low-Power High-Power Holmium Lasers in Pediatric Retrograde Intrarenal Surgery Outcomes.

To compare the outcomes of using low-power (up to 30 W) high-power (up to 120 W) holmium lasers in retrograde intrarenal surgery (RIRS) in children and to analyze if lasering techniques and the use of access sheath have any influence on the outcomes. We retrospectively reviewed data from 9 centers of children who underwent RIRS with holmium laser for the treatment of kidney stones between January 2015 and December 2020. Patients were divided into two groups: high-power and low-power holmium laser.

Indications, preferences, global practice patterns and outcomes in retrograde intrarenal surgery (RIRS) for renal stones in adults: results from a multicenter database of 6669 patients of the global FLEXible ureteroscopy Outcomes Registry (FLEXOR).

Purpose: To collect a multicentric database on behalf of TOWER research group to assess practice patterns and outcomes of retrograde intrarenal surgery (RIRS) for kidney stones.

Methods: Inclusion criteria: age ≥ 18 years, normal renal/calyceal system anatomy, calculi of any size, number, and position.

Study Period: January 2018 and August 2021.

Outcomes and lessons learnt from practice of retrograde intrarenal surgery (RIRS) in a paediatric setting of various age groups: a global study across 8 centres.

Purpose: To analyse and report the practice, outcomes and lessons learnt from a global series of retrograde intrarenal surgery (RIRS) in a paediatric multicentre series.

Methods: A retrospective review of anonymized pooled data gathered globally from 8 centres in paediatric patients (≤ 18 years of age) who had renal stones and underwent RIRS from 2015 to 2020 was performed. Patient demographics, perioperative parameters, stone characteristics, complications and stone-free rate (SFR; defined as endoscopically stone free and/or residual fragments < 2 mm on follow up imaging) were analysed.

Real-world Global Outcomes of Retrograde Intrarenal Surgery in Anomalous Kidneys: A High Volume International Multicenter Study.

Objective: To analyze the trends and outcomes of retrograde intrarenal surgery for treatment of urolithiasis in anomalous kidneys in a large international multicenter series.

Materials And Methods: We designed a multicentric retrospective study. Nineteen high-volume centers worldwide were included.