Are the Stone Density and Location Useful Parameters for Small Kidney Stones?

The investigators aimed to evaluate whether these parameters could be guides for us in the selection of RIRS or Mini-PNL procedures in kidney stones that are smaller than 2 cm.

The patients that have kidney stones smaller than two cm and be planned to undergo surgery were randomized into 2 groups prospectively. RIRS was performed in the RIRS group using a 7.5-F fiberoptic flexible ureterorenoscope while Mini-PCNL group was dilated up to 16.5F and mini-PCNL was performed with 12F nephroscopy. Preoperative characteristics, operative and postoperative results were compared in two groups. Thereafter, intra and intergroup comparisons were made to determine the effects of HU value, indicating the stone density, higher or less than 677 and the stone location on stone-free rates.

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Key information

Conditions

Kidney Calculi Calculi Female Urogenital Diseases Female Urogenital Diseases and Pregnancy Complications Kidney Diseases Kidney Stone Male Urogenital Diseases Nephrolithiasis Pathological Conditions, Anatomical Pathological Conditions, Signs and Symptoms Urinary Calculi Urogenital Diseases Urolithiasis Urologic Diseases

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Patients were evaluated with non-contrast abdominopelvic CT after a detailed anamnesis and physical examination.
Patients, who had a kidney stone with a maximum diameter of less than 2 cm and who did not prefer to undergo ESWL, were taken into the study.

Exclusion criteria

Patients with anomalous kidneys, skeletal deformities, severe obesity (BMI> 35) and those underwent ESWL treatment previously for the same stone were excluded from the study.

Treatment and study plan

Mini Percutaneous Nephrolithotomy

Procedure

Retrograde Intrarenal Surgery

Procedure

Primary outcomes

Stone free rate

Time frame: 1 year

Stone-free conditions were determined by low-dose spiral CT taken in postoperative third month

Secondary outcomes

Mean fluoroscopy time

Time frame: İntraoperative duration of flouroscopy

İntraoperative duration of flouroscopy time

Sponsors and collaborators

Lead sponsor

Abant Izzet Baysal University

Other

Registry information

Official study title

Are the Stone Density and Location Useful Parameters That Can Determine the Endourological Surgical Technique for Kidney Stones That Are Smaller Than 2 cm? Prospective Randomized Controlled Trial

Important dates

Study start: 2016
Primary completion: 2017
Study completion: 2017
First posted: Apr 20, 2018
Registry last updated: Apr 20, 2018

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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Completed