A controlled study of patients undergoing transurethral bladder tumor resection to investigate the effectiveness of an ultrasound-guided inter-adductor approach for obturator nerve block

A controlled study of patients undergoing transurethral bladder tumor resection to investigate the effectiveness of an ultrasound-guided inter-adductor approach for obturator nerve block - Controlled study using an ultrasound-guided inter-adductor approach for obturator nerve block

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000027762

Enrollment

Registered

2017-06-15

Start date

2017-08-01

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

Bladder tumor

Interventions

ultrasound-guided inter-adductor approach for an obturator nerve block inter-adductor approach for an obturator nerve block

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1)ASA-PS(American Society of Anesthesiologists-Physical Status):Classes 1 to 3 2)Patients who are scheduled to undergo transurethral bladder tumor resection 3)Obturator nerve block is required to suppress the obturator reflex during surgery

Exclusion criteria

Exclusion criteria: 1)Patients with severe hepatic and renal dysfunction 2)Patients with severe thyroid disease 3)Patients having severe allergy, especially to contrast agents 4)Pregnant women, breast-feeding women, or possibly pregnant women 5)Patients with a post-operative or radiation history that may influence an obturator nerve block 6)Patients assessed by investigators as being not eligible for this study

Design outcomes

Primary

Measure	Time frame
Percentage of local anesthetic required to target the obturator nerve	—

Secondary

Measure	Time frame
electromyogram	—

Countries

Japan

Contacts

Public ContactTetsuya Uchino

Faculty of Medicine, Oita University Departments of Anesthesiology

utetsuya@oita-u.ac.jp097-549-4111

Outcome results

None listed

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