Comparison of Interfascial Injection Versus Subpectineal Injection on Ultrasound-guided Obturator Nerve Block

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT05540847

Enrollment

Registered

2022-09-15

Start date

2022-09-16

Completion date

2023-04-23

Last updated

2023-04-25

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

Conditions

Bladder Neoplasm

Keywords

obturator nerve block, ultrasound guided block, bladder tumor

Brief summary

This study aimed to assess the effectiveness of the ultrasound-guided interfascial injection approach with the subpectineal injection technique for obturator nerve block in bladder cancers undergoing transurethral resection of bladder tumor (TURBT) under spinal anesthesia.

Interventions

PROCEDUREInterfascial Injection

Interfascial Injection on Ultrasound-guided Obturator Nerve Block

PROCEDURESubpectineal Injection

Subpectineal Injection on Ultrasound-guided Obturator Nerve Block

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* Lateral wall bladder tumour * ASA I-II patients

Exclusion criteria

* Contraindications for spinal anesthesia, * Tumors that disrupt the integrity of the bladder, * Coagulation disorders, * Uncooperative patients, * Allergy to local anesthetics.

Design outcomes

Primary

Measure	Time frame	Description
Success rate of obturatr nerve block	Peroperative period	The success or fail of the obturator nerve block will be conformed using nerve stimulator. Detecting muscles twitch will br considered to be a fail.

Secondary

Measure	Time frame	Description
Number of adductor muscle spazms	Intraoperative period	Number of adductor muscle spazms in each group will be noted during the intraoperative period.
Sensory block	30 minutes after the intervention	Sensory block area will be evaluated by a pin prick at in the dermatomal areas related obturator nerve and branches.
Patient satisfaction	Peroperative period	Changes in overall satisfaction will be assessed using a 5 point Likert Scale ( 1-very dissatisfied, 2- dissatisfied, 3- neutral, 4-satisfied, 5 - very satisfied
Procedure time	During the procedure	Block performance time will be recorded from the time the first ultrasound image is obtained until the procedure is completed

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 8, 2026