NCT04638569

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.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
116

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Feb 2021

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 16, 2020

Completed
4 days until next milestone

First Posted

Study publicly available on registry

November 20, 2020

Completed
3 months until next milestone

Study Start

First participant enrolled

February 16, 2021

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2022

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2022

Completed
Last Updated

February 7, 2022

Status Verified

January 1, 2022

Enrollment Period

1 year

First QC Date

November 16, 2020

Last Update Submit

January 24, 2022

Conditions

Keywords

obturator nerve blockbladder tumorultrasonografianatomical signs

Outcome Measures

Primary Outcomes (1)

  • Preoperative succesful obturator nerve block

    peroperative adductor muscle spazm

    operation time

Secondary Outcomes (1)

  • peroperative bleeding, Presence of recurrent tumor at postoperative 3rd month

    3 months

Study Arms (2)

Ultrasound-guided obturator nerve block group

ACTIVE COMPARATOR

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.

Procedure: obturator nerve block

obtutaror nerve block with anatomical landmarks

ACTIVE COMPARATOR

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.

Procedure: obturator nerve block

Interventions

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. 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. The time elapsed until the first needle insertion and local anesthetic injection is completed will be recorded as the application time.

Ultrasound-guided obturator nerve block groupobtutaror nerve block with anatomical landmarks

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • ASA I-II patients

You may not qualify if:

  • 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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Mugla Sitki Kocman University

Muğla, 48000, Turkey (Türkiye)

RECRUITING

MeSH Terms

Conditions

Urinary Bladder NeoplasmsHemorrhage

Condition Hierarchy (Ancestors)

Urologic NeoplasmsUrogenital NeoplasmsNeoplasms by SiteNeoplasmsFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesUrinary Bladder DiseasesUrologic DiseasesMale Urogenital DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Eylem Yaşar

    Muğla Sıtkı Koçman University

    PRINCIPAL INVESTIGATOR
  • Ali İhsan Uysal

    Mugla Sitki Kocman University Department of Anesthesia

    STUDY CHAIR
  • İlker Akarken

    Mugla Sitki Kocman University Department of Urology

    STUDY CHAIR
  • basak altiparmak

    Mugla Sitki Kocman University Department of Anesthesia

    STUDY CHAIR
  • semra demirbilek

    Mugla Sitki Kocman University Department of Anesthesia

    STUDY CHAIR

Central Study Contacts

eylem yasar

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, OUTCOMES ASSESSOR
Purpose
OTHER
Intervention Model
PARALLEL
Model Details: group 1; Ultrasound-guided obturator nerve block group 2; obturator nerve block with anatomical signs
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
medical doctor of anesthesiology special

Study Record Dates

First Submitted

November 16, 2020

First Posted

November 20, 2020

Study Start

February 16, 2021

Primary Completion

March 1, 2022

Study Completion

September 1, 2022

Last Updated

February 7, 2022

Record last verified: 2022-01

Data Sharing

IPD Sharing
Will not share

Locations