Urinary stone
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: (1) Voluntary participation in this trial with written informed consent signed by the participant or their legal representative. (2) Patients aged 18 to 75 years (including both 18 and 75). (3) Diagnosed with upper ureteral or renal stones measuring 10 mm or larger via urinary system computed tomography (CT). (4) scheduled for first-stage RIRS.
Exclusion criteria
Exclusion criteria: (1) Patients with active urinary or reproductive system infections or fever. (2) Those who used alpha-blockers. (3) Individuals with a history of surgery on a solitary kidney or congenital/acquired ureteral or urethral anomalies. (4) Those afraid of needles. (5) Participants in other interventional studies within 3 months. (6) Any other conditions deemed by the investigator to be unsuitable for participation in this trial.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The proportion of patients with successful UAS placement in first-stage RIRS; | — |
Secondary
| Measure | Time frame |
|---|---|
| Insertion resistance during ureteral access sheath (UAS) placement in the surgical procedure;AEs during the surgical procedure and within two weeks postoperatively;Ureteral injury extent upon removal of the UAS at the completion of surgery;Surgical duration;Stone clearance rate two weeks post-surgery; | — |
Countries
China
Contacts
Shuguang Hospital affiliated to Shanghai University of Traditional Chinese Medicine