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Application of novel distal flexible ureteral guide sheath in upper urinary calculi surgery: a single center clinical study

The application of novel distal flexible ureteral guide sheath combined with flexible ureteroscope in the operation of upper urinary calculi: a single center clinical study.

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2200061740
Enrollment
Unknown
Registered
2022-07-01
Start date
2022-06-18
Completion date
Unknown
Last updated
2023-04-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

urinary calculi

Interventions

Research Group:Flexible sheath combined with surgery
Control group:Ureteral sheath combined surgery

Sponsors

The First Affiliated Hospital of Gannan Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 70 Years

Inclusion criteria

Inclusion criteria: 1. 18-70 years old; 2. Upper urinary calculi with diameter <= 4 cm; 3. ECOG performance status (PS) 0-1; 4. Patients with normal renal function or renal insufficiency stage I ~II; 5. Subjects voluntarily participated in this study, voluntarily accepted conventional ureteral guiding sheath or flexible ureteral guiding sheath surgery and signed informed consent with good compliance and follow-up.

Exclusion criteria

Exclusion criteria: Patients with any of the following conditions cannot be enrolled in this study: 1. Aged 70 years; 2. Patients with previous surgical treatment history of ipsilateral urinary calculi; 3. patients with known ureteral stricture, severe deformity, and renal anatomic abnormalities; 4. patients with severe urinary tract infection or renal abscess, severe hydronephrosis, and coagulation disorders; 5. Patients with severe heart disease and lung insufficiency who cannot tolerate surgery.

Design outcomes

Primary

MeasureTime frame
Immediate stone removal rate.;Recent stone clearing rate (1 week after surgery);Long-term stone clearing rate (3 months after surgery);

Countries

China

Contacts

Public ContactXiaoning Wang
wxn2002@139.com+86 13979727005

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026