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The Role of Preoperative Ureteral Diameter Measurements in Predicting Difficult Access During Retrograde Intrarenal Surgery: A Retrospective Analysis of 234 Patients

NCT ID: NCT06746779

Last Updated: 2024-12-27

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

234 participants

Study Classification

OBSERVATIONAL

Study Start Date

2018-01-01

Study Completion Date

2024-12-10

Brief Summary

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This study investigates the role of preoperative ureteral diameter measurements in predicting difficult access during retrograde intrarenal surgery (RIRS) in patients with kidney stones. A retrospective analysis was conducted on 234 patients who underwent RIRS, evaluating factors such as preoperative ureteral diameters (measured at distal, iliac, and upper ureteral levels via CT scans), stone size, patient demographics, operation duration, and surgical success rates. The findings aim to determine whether ureteral diameter measurements can serve as reliable predictors for surgical challenges, ultimately improving preoperative planning and patient outcomes.

Detailed Description

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This retrospective study evaluates the role of preoperative ureteral diameter measurements in predicting difficult access during retrograde intrarenal surgery (RIRS) in patients with kidney stones. A total of 234 patients who underwent RIRS were included in the analysis. Preoperative computed tomography (CT) scans were used to measure ureteral diameters at three levels: distal ureter, iliac ureter, and upper ureter. The relationship between ureteral diameter and intraoperative access difficulty was assessed.

The study also analyzed patient demographics (age, gender, BMI), stone characteristics (size, location), operative parameters (duration, access attempts), and outcomes (surgical success and complication rates). Difficult access during RIRS was defined based on the number of attempts required to achieve successful ureteral access, need for secondary procedures, or inability to complete the planned surgery.

The primary aim was to determine whether preoperative ureteral diameter measurements can serve as predictive markers for challenging surgical access. Secondary objectives included identifying other patient or stone-related factors contributing to access difficulty and evaluating their impact on surgical outcomes. The findings may assist clinicians in preoperative planning, improving patient selection for RIRS, and optimizing intraoperative strategies to minimize complications and enhance procedural success rates.

Conditions

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Kidney Stones Retrograde Intrarenal Surgery Difficult Ureteral Access Prediction

Keywords

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Retrospective analysis of 234 patients undergoing retrograde intrarenal surgery (RIRS).

Study Design

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Observational Model Type

COHORT

Study Time Perspective

RETROSPECTIVE

Study Groups

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Easy Access Group

Patients with successful ureteral access on the first attempt during retrograde intrarenal surgery (RIRS).

No interventions assigned to this group

Difficult Access Group

Patients requiring multiple attempts for ureteral access, alternative procedures, or cases where the planned surgery could not be completed due to access issues.

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

Patients aged 18 years or older. Diagnosed with kidney stones (nephrolithiasis) requiring surgical intervention. Underwent retrograde intrarenal surgery (RIRS). Available preoperative CT scans for ureteral diameter measurements. Complete medical records, including demographic, clinical, and surgical data.

Exclusion Criteria

History of open or laparoscopic renal surgery. Presence of ureteral strictures or congenital anomalies. Patients with incomplete or missing medical records. Active urinary tract infection at the time of surgery. Pregnant or lactating individuals.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Hisar Intercontinental Hospital

OTHER

Sponsor Role lead

Responsible Party

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Basri Cakiroglu

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Basri Cakiroglu

Role: PRINCIPAL_INVESTIGATOR

Hisar Intercontinental Hospital

Locations

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Basri Cakiroglu

Istanbul, , Turkey (Türkiye)

Site Status

Hisar Intercontinental Hospital

Istanbul, , Turkey (Türkiye)

Site Status

Countries

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Turkey (Türkiye)

Other Identifiers

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13.12.2024. 24-12

Identifier Type: -

Identifier Source: org_study_id