Ureteral Stent Placement After Ureteroscopy for Renal Stones: A Randomized

Status Recruiting

Clinical Trial Summary

The rationale for this study is to determine if there is a difference in complications among patients undergoing ureteroscopy for renal stones who receive a stent compared to not receiving a stent postoperatively.

Clinical Trial Description

Kidney stones affect 9% individuals within the United States, and the prevalence is increasing. Over the last few decades, ureteroscopy has become the most commonly performed stone procedure. However the complication rate after ureteroscopy is not insignificant. Reducing morbidity after ureteroscopy would improve patient outcomes and reduce health care utilization. A major contributor to patient morbidity after ureteroscopy is the ureteral stent, which is placed at the time of surgery and left in place 1-2 weeks after surgery. The rationale for utilizing stents is to prevent urinary obstruction from edema or stone fragments. On the other hand, stents cause hematuria, pain, and lower urinary tract symptoms. Additionally, stent-related symptoms are often misdiagnosed as urinary tract infections leading to unnecessary antibiotic use. The clinical utility of ureteral stents after ureteroscopy has not been well studied, specifically a stone located in the kidney. Prior studies on stent-less ureteroscopic procedures have focused on treatment of ureteral stones and not stones located in the kidney, have had restrictive inclusion and exclusion criteria, are primarily from single center institutions, and most being performed ~15 years ago. Surgical techniques and device innovations have changed the procedure since that time. To date, there have been only 2 studies that included stone located in the kidney showing no difference in unplanned hospital revisits, however both combined analyses with ureteral stones and selection bias was an issue for both studies. In addition, there is a lack of studies assessing opiate use, impact of quality of life with stent placement, and loss of work related to stent placement ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT03855787
Study type	Interventional
Source	Vanderbilt University Medical Center
Contact	Ryan Hsi, MD
Phone	615-343-2036
Email	ryan.hsi@vumc.org
Status	Recruiting
Phase	N/A
Start date	November 11, 2019
Completion date	November 11, 2025

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Ureteral Stent Placement After Ureteroscopy for Renal Stones: A Randomized Controlled Trial

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms