Tubeless Percutaneous Nephrolithotomy Without Reverse Insertion of a Ureteral Catheter
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In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Without reverse insertion of a ureteral catheter.
- Who it may be relevant to
- Registry conditions: Urinary Calculi, Percutaneous Nephrolithotomy. Basic parameters: 18 years — 80 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- China
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
A Comparative Study of Tubeless Percutaneous Nephrolithotomy With or Without Reverse Ureteral Catheter Insertion
Overview
Percutaneous nephrolithotomy(PCNL) is a surgical method for upper urinary calculi. The advent of tubeless PCNL (without indwelling nephrostomy tube) has been proved to be safe and effective in reducing postoperative discomfort, shortening hospitalization time and reducing hospitalization costs. Traditional tubeless PCNL usually involves retrograde insertion of the ureteral catheter, which may cause many ureteral related surgical complications. However, there are few reports on tubeless PCNL without reverse ureteral catheter insertion. The goal of this study is to explore the safety and effectiveness of the tubeless PCNL without reverse ureteral catheter insertion.
Detailed description
This is a key clinical research project of the University of South China (No. USCKF201902K01). The goal of this study is to comparative the safety and clinical efficacy between the tubeless percutaneous nephrolithotomy without reverse insertion of a ureteral catheter and the traditional tubeless percutaneous nephrolithotomy with reverse insertion of a ureteral catheter in the treatment of upper urinary calculi, and to explore the former' applications. It is a prospective, randomized controlled single center study that is conducted for 2 years anticipatively. The clinic physician is responsible for patient recruitment and allocation and the application of computerized random-number generation. For random allocation, participants are given random numbers. Participants with odd numbers are assigned to experimental group, where they undergo tubeless PCNL without reverse insertion of a ureteral catheter. Participants with even numbers are assigned to control group and undergo tubeless PCNL with reverse insertion of a ureteral catheter. The doctors managing the operations accept participants and execute the surgical treatments. All participants sign clinical-trial informed consent and surgical informed consent during the preoperative conversation. Follow-up observation is conducted for 1 month after surgery. After completion of the study, we collect relevant clinical data from the participants. The primary and secondary outcomes are analyzed and compared between the two groups.
Interventions
- Procedure Without reverse insertion of a ureteral catheter
Traditional tubeless percutaneous nephrolithotomy usually need retrograde ureteral catheter insertion. Our intervention is that the tubeless percutaneous nephrolithotomy is executed without reverse insertion of a ureteral catheter.
Primary outcome measures
- Changes of inflammatory indicators after surgery [Time frame: Hour 3 after the surgery]
- Changes in renal bleeding after surgery [Time frame: Hour 3 after the surgery]
- Changes of renal-function after surgery [Time frame: Hour 3 after the surgery]
- Pain score after surgery [Time frame: Hour 3 after the surgery]
- Incidence of pneumothorax and hydrothorax [Time frame: Day 2 after the surgery]
- Incidence of ureteral stone street [Time frame: Day 2 after the surgery]
Secondary outcome measures (4)
- Duration of operation [Time frame: during the procedure]
- Duration of hospital stay [Time frame: immediately after the discharge]
- Hospital costs [Time frame: immediately after the discharge]
- Stone-free rates [Time frame: Day 2 after the surgery]
Eligibility criteria
Inclusion criteria
- Participants who met the the applications of PCNL surgery in the 2019 Chinese Guidelines for the Diagnosis and Treatment of Urological Diseases
- Participants who agree to undergo tubeless PCNL
- The participants' maximum diameter of the stone should be less than 3.5cm
Exclusion criteria
- Confirmation by computerized tomography (CT) images and blood biochemical indicators of infectious stones or complex staghorn stones
- Obvious surgical contraindications, such as severe heart and lung insufficiency, abnormal coagulatory function
- Previous PCNL or nephrolithotomy, presence of an indwelling ureteral stent or nephrostomy tube before surgery
- Renal trauma or congenital malformation of the urinary system
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Randomized
- Model
- Parallel assignment
- Masking
- Single blind
- Primary purpose
- Treatment
Study locations
China · 1 center
- The First Affiliated Hospital of University of South China — Hengyang
Identifiers
NCT: NCT05574517 · USCKF201902K01