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OpenTrials
Completed

NCT Number: NCT05340088

Optimal Passive Dilation Time in Retrograde Intrarenal Surgery

Retrograde intrarenal surgery (RIRC) is used as standard treatment for stones less than 2 cm. In some cases, the ureteral access sheath cannot be placed due to ureteral stricture. In this case, a double j stent (DJ) is placed to passively dilate the ureter, and the RIRC is postponed for post-dilatation. The aim of the study is to determine the optimal time for RIRC operation in cases where a double j stent was placed for passive dilatation.

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Key information

Conditions

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

Age range

18 year–80 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Ankara Training and Research Hospital

Ankara, Altindag, 06230, Turkey (Türkiye)

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • Patients with a DJ stent for passive dilatation and subsequent RIRC

Exclusion criteria

  • Urinary tract infection, patients with ureteral compression and a history of pelvic radiotherapy, urinary system tumor

Treatment and study plan

Retrograde intrarenal surgery after DJ stent placement

Procedure

Patients who underwent RIRC for 2-4 weeks after DJ stent placement for passive dilatation

Primary outcomes

  1. BMI in kg/m^2

    Time frame: 3 Months

    BMI in kg/m^2the kidney, operation time(minute)

  2. serum creatinine mg/dl

    Time frame: 3 Months

    serum creatinine mg/dl

Secondary outcomes

  1. mm size of the stone

    Time frame: 3 Months

    mm size of the stone

  2. localization of the stone in the kidney,

    Time frame: 3 Months

    localization of the stone in the kidney,

Sponsors and collaborators

Lead sponsor

Ankara Training and Research Hospital

Other

Registry information

Important dates

Study start
2021
Primary completion
2022
Study completion
2022
First posted
Apr 21, 2022
Registry last updated
Apr 21, 2022

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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