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Comparative Analysis of RIRS Scoring System and Resorlu Unsal Stone Score (RUSS) for Predicting Stone-free Rate After Retrograde Intrarenal Surgery

NCT07026721 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 60

Last updated 2025-06-18

No results posted yet for this study

Summary

Several studies have investigated the use of scoring systems for predicting stone-free rates after RIRS. Previous research has evaluated the RIRS Scoring System, RUSS, and other similar systems in different patient populations. This study was conducted to compare RIRS scoring system and Resorlu Unsal Stone Score (RUSS) for predicting stone free rate.

Conditions

  • Renal Stones

Interventions

PROCEDURE

Retrograde intrarenal surgery (RIRS)

The intervention involves Retrograde Intrarenal Surgery (RIRS) performed using a flexible ureteroscope to access the renal collecting system via a retrograde (urethra → bladder → ureter → kidney) approach. Stones are fragmented using a holmium:YAG laser, with or without the use of a ureteral access sheath, depending on the case. What distinguishes this intervention from others is the integration of preoperative scoring systems-specifically the RIRS Scoring System and the Resorlu Unsal Stone Score (RUSS)-to predict stone-free outcomes and guide case selection and surgical planning. Additionally, all procedures are performed by experienced endourologists following a standardized protocol, including consistent patient positioning, anesthesia, access technique, and post-operative imaging at defined intervals to assess outcomes.

Sponsors & Collaborators

  • Maharajgunj Medical Campus

    lead OTHER

Principal Investigators

  • Saro Prajapati, MBBS, MS · Department of General Surgery Maharajgunj Medical Campus Institute of Medicine, Tribhuvan University

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-01-01
Primary Completion
2024-12-27
Completion
2024-12-29

Countries

  • Nepal

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07026721 on ClinicalTrials.gov