A study examining the safety and efficacy of robot-assisted surgery using the da Vinci Si system for patients with ureteropelvic junctionpart stenosis

A study examining the safety and efficacy of robot-assisted surgery using the da Vinci Si system for patients with ureteropelvic junctionpart stenosis - A study examining the safety and efficacy of robot-assisted surgery using the da Vinci Si system for patients with ureteropelvic junctionpart stenosis

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000035800

Enrollment

Registered

2019-02-07

Start date

2017-07-28

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

Ureteropelvic junctionpart stenosis

Interventions

Laparoscopic Group Robotic group

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: The patients diagnosed as ureteropelvic junction obstruction in Juntendo University Hospital Department of Pediatric General and Urogenital Surgery. Subjects aged 1 to 15 at the time of acquiring consent. patient or familys whose informed consents to join this study are obtained by the written document.

Exclusion criteria

Exclusion criteria: Patient who the research director judged unsuitable as a subject

Design outcomes

Primary

Measure	Time frame
Adverse event occurrence rate: presence or absence of complications at approach, intraoperative or postoperative. Transition to laparotomy or laparoscopic surgery, blood transfusion practice, organ damage, vascular injury, postoperative bleeding, postoperative infection, pulmonary infarction, gas embolism.	—

Secondary

Measure	Time frame
Surgical results: operation time, bleeding volume Postoperative course: postoperative Vital Sign, urine volume, body temperature, drainage volume, leukocytes / CRP values on days 1, 3 and 5 postoperatively, postoperative pain (VAS: Visual Analog Scale), hospitalization period Pathological examination: presence or absence of malignancy in resected bile duct Overall survival period: existence of death, period from surgery to death	—

Measure

Time frame

Surgical results: operation time, bleeding volume Postoperative course: postoperative Vital Sign, urine volume, body temperature, drainage volume, leukocytes / CRP values on days 1, 3 and 5 postoperatively, postoperative pain (VAS: Visual Analog Scale), hospitalization period Pathological examination: presence or absence of malignancy in resected bile duct Overall survival period: existence of death, period from surgery to death

—

Countries

Japan

Contacts

Public ContactHiroshi Murakami

Juntendo University Pediatric Surgery

hmuraka@juntendo.ac.jp03-3813-3111

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026