Comparison of Obturator Nerve Block With Ultrasound Guidance and Anatomical Signs

Not Applicable

• Conditions: Succesful Obturator Nerve Block; Bladder Tumor; Bleeding
• Interventions: Procedure: obturator nerve block

• Registration Number: NCT04638569
• Lead Sponsor: Muğla Sıtkı Koçman University

Brief Summary

Comparison of the obturator nerve block in patients undergoing transurethral resection due to bladder tumor, technically using ultrasound guided or blinded with anatomical signs.

Detailed Description

The primary aim of this study is to compare the success rates of ONB techniques performed with ultrasound guided or blind technique. Its secondary purpose is to compare the effect of peroperative bleeding and control cystoscopy performed in the postoperative 3rd month on the presence of recurrent tumor.

Study Timeline

• Study First Submitted: 2020-11-16
• Study First Submitted QC: 2020-11-16
• Study First Posted: 2020-11-20
• Study Start: 2021-02-16
• Status Verified: 2022-01
• Last Update Submitted: 2022-01-24
• Last Update Posted: 2022-02-07
• Primary Completion: 2022-03-01
• Study Completion: 2022-09-01

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 116

Inclusion Criteria

• ASA I-II patients

Exclusion Criteria

• Tumors that disrupt the integrity of the bladder,
• bladder floor tumors,
• coagulation disorders,
• motor in the lower limbs
• with sensory disturbances,
• uncooperative patients,
• Known allergy to local anesthetics
• patients with localized infection at the procedure site

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
obtutaror nerve block with anatomical landmarks	obturator nerve block	In the second group, after the patient is placed in the lithotomy position, 1.5 cm lateral tuberculum pubis and 1.5 cm caudal will be marked and needle entry will be made and 0.5% bupivacaine will be injected with 10 mL.
Ultrasound-guided obturator nerve block group	obturator nerve block	The ultrasound probe will be placed in the middle of the tuberculum pubis and femoral artery, 5-6 cm below the inguinal ligament, and 5 mL of 0.5% bupivacaine will be injected into the anterior and posterior branches of the ON with a needle.

Primary Outcome Measures

Name	Time	Method
Preoperative succesful obturator nerve block	operation time	peroperative adductor muscle spazm

Secondary Outcome Measures

Name	Time	Method
peroperative bleeding, Presence of recurrent tumor at postoperative 3rd month	3 months	peroperative bledding, Control by cystoscopy in the postoperative 3rd month recurrence tumor size

Trial Locations

Locations (1)

Mugla Sitki Kocman University; 🇹🇷 Mugla, Turkey