NCT05578807

Brief Summary

Total tubeless Percutaneous nephrolithotomy (PCNL) is a modified surgical method of PCNL surgery, that is, there is no indwelling nephrostomy tube and double-J tube during PCNL surgery. Compared with traditional PCNL surgery, it has the advantages of reducing pain, shortening operation time and reducing operation cost. Since this procedure was first performed in 2004, several randomized clinical studies have verified the safety and efficacy of total tubeless PCNL. Conventional total tubeless PCNL surgery requires the patient to first undergo retrograde transurethral ureteroscopic insertion of the ureteral catheter in the lithotomy position, and then change the patient to the prone position. However, a large number of literature reports and the surgical experience of PCNL in the past 20 years tell the investigators that the reverse insertion of ureteral catheter can cause many recent surgical complications.The study planned to perform the operation in the prone position without reverse insertion of a ureteral catheter in the total tubular PCNL surgery.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
100

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Sep 2022

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 28, 2022

Completed
8 days until next milestone

First Submitted

Initial submission to the registry

October 6, 2022

Completed
7 days until next milestone

First Posted

Study publicly available on registry

October 13, 2022

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 10, 2024

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

January 10, 2025

Completed
Last Updated

October 10, 2023

Status Verified

October 1, 2023

Enrollment Period

2 years

First QC Date

October 6, 2022

Last Update Submit

October 9, 2023

Conditions

Outcome Measures

Primary Outcomes (9)

  • Rate of fever

    Fever was defined as axillary temperature greater than 38.5 ° C.

    From the day of surgery to the day of discharge, up to 2 weeks.

  • White blood cell count change value

    The change value of White blood cell count between preoperative and

    Day 2 before surgery、hour 3 after the surgery

  • Neutrophils granulocyte change value

    The change value of Neutrophils granulocyte between preoperative and postoperative

    Day 2 before surgery、hour 3 after the surgery

  • Hemoglobin change value

    The change value of Hemoglobin between preoperative and postoperative

    Day 2 before surgery、hour 3 after the surgery

  • Hematocrit change value

    The change value of Hematocrit between preoperative and postoperative

    Day 2 before surgery、hour 3 after the surgery

  • Rate of renal subcapsular hematoma

    The proportion of postoperative renal subcapsular hematoma in all patients

    Day 2 after the surgery

  • Serum creatinine change value

    The change value of Serum creatinine between preoperative and postoperative

    Day 2 before surgery、Hour 3 after the surgery

  • visual analog scale (VAS)pain score

    0: no pain; Less than 3 points: mild pain, tolerable; 4 points to 6 points: the patient's pain and affect sleep, still tolerable; 7-10: Patients have increasing pain, pain is unbearable, affect appetite, affect sleep.

    Hour 2 after the surgery

  • Rate of hydrothorax

    Hydrothorax appeared on the surgical side.

    Day 2 after the surgery

Secondary Outcomes (4)

  • Stone free rate

    Day 2 after the surgery

  • Operation time

    During the procedure

  • length of hospital stay

    2 weeks after surgery

  • Medical costs

    2 weeks after surgery

Study Arms (2)

Total tubeless percutaneous nephrolithotomy without reverse insertion of a ureteral catheter

EXPERIMENTAL

In total tubeless percutaneous nephrolithotomy surgery, there is no reverse insertion of a ureteral catheter by transurethral ureteroscopy when a patient is placed in lithotomy position, no need to change the position, and no need to re-sterilize and lay towels.

Procedure: without reverse ureteral catheter insertion

Conventional total tubeless percutaneous nephrolithotomy

NO INTERVENTION

In total tubeless percutaneous nephrolithotomy surgery, there is reverse insertion of a ureteral catheter by transurethral ureteroscopy when a patient is placed in lithotomy position, need to change the position, and need to re-sterilize and lay towels.

Interventions

In contrast to conventional total tubeless percutaneous nephrolithotomy, there was no reverse insertion of a ureteral catheter by transurethral ureteroscopy when a patient is placed in lithotomy position, no change in position, and no repeated disinfection.

Total tubeless percutaneous nephrolithotomy without reverse insertion of a ureteral catheter

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • patients with kidney stones who met the indications for PCNL surgery.
  • the maximum diameter of calculi was less than 35 mm.
  • the width of hydronephrosis effusion was less than 25mm.

You may not qualify if:

  • patients with infectious calculi confirmed by preoperative CT examination and blood biochemical indexes.
  • Patients with severe cardiac and pulmonary insufficiency, coagulation dysfunction and other obvious surgical contraindications.
  • Patients with previous history of PCNL surgery on the affected side or nephrotomy.
  • Patients with indwelling double J tube or nephrostomy tube before operation.
  • Patients with renal trauma or congenital anomalies of urinary system.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The First Affiliated Hospital of University of South China

Hengyang, Hunan, 421001, China

RECRUITING

MeSH Terms

Conditions

Kidney Calculi

Condition Hierarchy (Ancestors)

NephrolithiasisKidney DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesUrolithiasisUrinary CalculiMale Urogenital DiseasesCalculiPathological Conditions, AnatomicalPathological Conditions, Signs and Symptoms

Study Officials

  • Mingyong Li, MD.

    the First Affiliated Hospital of the University of South China

    STUDY DIRECTOR

Central Study Contacts

Mingyong Li, MD.

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate professor

Study Record Dates

First Submitted

October 6, 2022

First Posted

October 13, 2022

Study Start

September 28, 2022

Primary Completion

October 10, 2024

Study Completion

January 10, 2025

Last Updated

October 10, 2023

Record last verified: 2023-10

Data Sharing

IPD Sharing
Will share

Individual participant data will be made available to other researchers after the study Report are published.

Shared Documents
STUDY PROTOCOL, ICF
Time Frame
One year after the study report was published,but the duration is uncertain.
Access Criteria
When proper editing or review requirements are met, the study data will be available from the study manager after the study is completed.

Locations