Disposable 7.5Fr Electronic Flexible Ureteroscope Combined 10Fr Ureteral Access Sheath for Treatment of Renal Stone <2cm

July 8, 2024 updated by: Ningbo No. 1 Hospital
Observation efficacy and safety of disposable f7.5 electronic flexible ureteroscope combined f10 ureteral guide sheath for treatment of renal stone <2cm.

Study Overview

Detailed Description

Using disposable 7.5Fr electronic flexible ureteroscope combined 10Fr ureteral guide sheath to treat renal stone <2cm, and investigating its efficacy and safety.

Study Type

Interventional

Enrollment (Actual)

23

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Zhejiang
      • Ningbo, Zhejiang, China, 315010
        • Ningbo First Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Patients with kidney stones less than 2cm who choose to perform "Flexible ureteroscopic holmium laser lithotripsy";
  2. Over 18 years old, male or female;
  3. No hydronephrosis or mild to moderate hydronephrosis (collection system separation is less than 2cm);
  4. The subject has no mental illness or language dysfunction, can understand the situation of this study and has signed an informed consent form, and is estimated to be able to cooperate with the completion of the entire study;
  5. No urinary tract infection or no clinical manifestations of urinary tract infection;
  6. Patients with urinary tract infection, negative urine culture, and no fever need to undergo antibiotic treatment for more than 3 days; urinary routine examination suggests urinary tract infection, positive urine culture, and patients without fever need to undergo antibiotic treatment for more than 7 days, till the urine culture turns negative.

Exclusion Criteria:

  1. Patients with a previous history of ureteral stenosis or who have undergone open, laparoscopic ureteral, nephrectomy and lithotripsy;
  2. Fever or urinary tract infection is not treated according to the inclusion criteira;
  3. Pregnant women and women's menstrual periods;
  4. Cannot tolerate anaesthesia or surgery due to serious systemic diseases, heart disease, lung insufficiency and failure of important organs;
  5. Anatomical malformations such as polycystic kidneys, horseshoe kidneys, and ectopic kidneys;
  6. Patients with high suspicion of ureteral stenosis or diseases that are considered unsuitable to participate in this clinical study;
  7. Patients indwelling double J stent preoperatively;
  8. Patients who need bilateral upper urinary tract surgery at the same time.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 7.5Fr flexible ureteroscope combined 10Fr ureteral access sheath
Using disposable 7.5Fr electronic flexible ureteroscope combined 10Fr ureteral access sheath to treat renal stone <2cm
Using disposable 7.5Fr electronic flexible ureteroscope combined 10Fr ureteral access sheath to treat renal stone <2cm

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Success rate of Accessing
Time Frame: 1 day
success rate of UAS placement (SRUP)
1 day

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Evaluation of intraoperative ureteral injury
Time Frame: 1 day
Evaluation of intraoperative ureteral injury according to the standards proposed by Traxer et. al.
1 day
Stone free rate
Time Frame: 1 and 30 days
stone free rate (SFR)
1 and 30 days
overactive bladder symptom score (OABSS)
Time Frame: 1 month
Overactive bladder symptom score (OABSS) before and after the operation
1 month
Quality of life (QOL) questionnaire
Time Frame: 1 month
Quality of life (QOL) before and after the operation
1 month

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Li Fang, Doctor, Urology of NIngbo First Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

April 20, 2022

Primary Completion (Actual)

October 6, 2023

Study Completion (Actual)

October 28, 2023

Study Registration Dates

First Submitted

November 23, 2022

First Submitted That Met QC Criteria

July 8, 2024

First Posted (Actual)

July 9, 2024

Study Record Updates

Last Update Posted (Actual)

July 9, 2024

Last Update Submitted That Met QC Criteria

July 8, 2024

Last Verified

December 1, 2022

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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