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Prospective Assessment of Procedure-Related and Patient-Reported Outcomes After Retrograde Intrarenal Surgery (RIRS) for Renal Calculi Less Than 20 mm

Prospective Assessment of Procedure-Related and Patient-Reported Outcomes After Retrograde Intrarenal Surgery (RIRS) for Renal Calculi Less Than 20 mm

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03719456
Enrollment
340
Registered
2018-10-25
Start date
2017-01-01
Completion date
2021-02-01
Last updated
2021-11-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Renal Stone

Keywords

Renal stone, Calculi, Retrograde Intrarenal Surgery, Flexible ureteroscope

Brief summary

The investigators aim at this study to prospectively assess procedure-related outcomes after RIRS for renal calculi less than 20 mm, including stone free rate (SFR), predictors of successful outcome, complications types/rate, readmission rate and the need of auxiliary procedures. In addition, patient-reported outcomes after this modality of intervention are going to be assessed.

Interventions

PROCEDURERetrograde Intrarenal Surgery

Sponsors

Mansoura University
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

1. Ability to give informed consent. 2. Stone criteria: * Less than 20 mm. * Infectious stone. * Growing stone on follow-up. 3. Kidney criteria: * Obstructing stone causing hydronephrosis. * Solitary kidney or bilateral renal stones. 4. Patients criteria: * Age ≥18 years. * Symptomatic stone causing pain or hematuria. * Patient comorbidity omitting other modalities as bleeding diathesis or skeletal deformities. * Patient preference or patients' social situation concerning profession or amount of travel

Exclusion criteria

1. Inability to give informed consent. 2. Stone criteria: * More than 20 mm. * Peripheral calyceal asymptomatic stone static in size on follow-up. * Unsuitable/failure of initial treatment modalities (oral dissolution therapy-SWL) for stones less than 20 mm.

Design outcomes

Primary

MeasureTime frameDescription
stone free rate (SFR)It will be assessed by non contrast computed tomography for the participants one month after the procedurestone free rate after the procedure

Secondary

MeasureTime frameDescription
- Post-operative complications using modified Dindo-Clavian grading systemwithin 30 days after the procedure\- Post-operative complications (Type/rate/predictors) using modified Dindo-Clavian grading system
Intra-operative clinical judgment of the surgeon on stone free status using flouroscopy and visual scanning of pelvicalyceal system and its relation to post-operative NCCT.Post operative day 1 after the procedure\- Intra-operative surgeon perspective about procedure outcome and its relation to post-operative NCCT.
Predictors of operative time of the procedureImmediately after the procedurePredictors of operative time of the procedure
Patient -reported outcomes about General impression on the procedure using Freiburg Index of patient Satisfaction (FIPS).within 3 months after the procedurePatient -reported outcomes about General impression on the procedure using Freiburg Index of patient Satisfaction (FIPS).
Assessment of patient-reported outcomes using patient-reported outcomes measurements information system (PROMIS)within 3 months after the procedureProcedure impact on improvement in patient-reported outcomes measurements information system (PROMIS): PROMIS is a National Institute of Health (NIH) validated system to assess patient quality of life. The PROMIS survey consists of 43 questions assessing the following categories: anxiety/fear, depression/ sadness, fatigue, pain interference, physical function, and sleep disturbance.
- Patient -reported outcomes about post operative pain using visual analogue scalewithin 3 months after the procedure• Post-operative pain: Postoperative pain will be evaluated in all patients by using visual analogue scale (VAS). The impact of patient-related, stone-related and procedure-related factors.

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026