Effect of Injection Duration of Fascial Plane Blocks on Block Success

NCT ID: NCT07096765

Last Updated: 2025-07-31

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

NA

Total Enrollment

100 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-08-01

Study Completion Date

2026-02-01

Brief Summary

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This prospective observational study aims to evaluate the impact of injection duration during fascial plane blocks on block success and analgesic efficacy in patients undergoing laparoscopic cholecystectomy. The hypothesis is that shorter injection durations increase injection pressure, potentially limiting local anesthetic spread, while longer durations facilitate broader anesthetic distribution.

Detailed Description

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Fascial plane blocks involve injecting local anesthetics between two anatomical fascial layers, with analgesia achieved by anesthetic diffusion through the fascial plane. However, anesthetic spread may vary significantly based on injection technique, speed, and pressure. This study hypothesizes that injection duration directly influences injection pressure, local anesthetic distribution, and consequently, the extent of sensory blockade and analgesia.

Conditions

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Nerve Block

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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Conventional

During the fascia block application, the injection will be administered using the conventional method without any specific time limit.

Group Type ACTIVE_COMPARATOR

Group C

Intervention Type DRUG

Ultrasound guided External Oblique And Rectus Abdominis Plane (EXORA) Block block (0.3 ml/kg ,

%0.25 bupivacaine) will be performed Drug: Tramadol 400 mg tramadol, IV 4 mg/ mL tramadol solution into 100 mL normal saline; Patient-controlled analgesia settings: 0.3 mg/kg bolus, 10 mg Demand dose and 20 min lock out interval, six-hour limit infusion to attain 100 mg. Maximum daily dose was set at 400 mg.

One-minute injection

During the fascia block application, the injection will be administered within 1 minute.

Group Type ACTIVE_COMPARATOR

Group O

Intervention Type DRUG

Ultrasound guided External Oblique And Rectus Abdominis Plane (EXORA) Block block (0.3 ml/kg ,

%0.25 bupivacaine) will be performed Drug: Tramadol 400 mg tramadol, IV 4 mg/ mL tramadol solution into 100 mL normal saline; Patient-controlled analgesia settings: 0.3 mg/kg bolus, 10 mg Demand dose and 20 min lock out interval, six-hour limit infusion to attain 100 mg. Maximum daily dose was set at 400 mg.

Two-minute injection

During the fascia block application, the injection will be administered within 2 minutes.

Group Type ACTIVE_COMPARATOR

Group T

Intervention Type DRUG

Ultrasound guided External Oblique And Rectus Abdominis Plane (EXORA) Block block (0.3 ml/kg ,

%0.25 bupivacaine) will be performed Drug: Tramadol 400 mg tramadol, IV 4 mg/ mL tramadol solution into 100 mL normal saline; Patient-controlled analgesia settings: 0.3 mg/kg bolus, 10 mg Demand dose and 20 min lock out interval, six-hour limit infusion to attain 100 mg. Maximum daily dose was set at 400 mg.

Interventions

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Group O

Ultrasound guided External Oblique And Rectus Abdominis Plane (EXORA) Block block (0.3 ml/kg ,

%0.25 bupivacaine) will be performed Drug: Tramadol 400 mg tramadol, IV 4 mg/ mL tramadol solution into 100 mL normal saline; Patient-controlled analgesia settings: 0.3 mg/kg bolus, 10 mg Demand dose and 20 min lock out interval, six-hour limit infusion to attain 100 mg. Maximum daily dose was set at 400 mg.

Intervention Type DRUG

Group T

Ultrasound guided External Oblique And Rectus Abdominis Plane (EXORA) Block block (0.3 ml/kg ,

%0.25 bupivacaine) will be performed Drug: Tramadol 400 mg tramadol, IV 4 mg/ mL tramadol solution into 100 mL normal saline; Patient-controlled analgesia settings: 0.3 mg/kg bolus, 10 mg Demand dose and 20 min lock out interval, six-hour limit infusion to attain 100 mg. Maximum daily dose was set at 400 mg.

Intervention Type DRUG

Group C

Ultrasound guided External Oblique And Rectus Abdominis Plane (EXORA) Block block (0.3 ml/kg ,

%0.25 bupivacaine) will be performed Drug: Tramadol 400 mg tramadol, IV 4 mg/ mL tramadol solution into 100 mL normal saline; Patient-controlled analgesia settings: 0.3 mg/kg bolus, 10 mg Demand dose and 20 min lock out interval, six-hour limit infusion to attain 100 mg. Maximum daily dose was set at 400 mg.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Laparoscopic cholecystectomy surgery
* Patients with ASA (American Society of Anaesthetists) scores I and III will be included.

Exclusion Criteria

* Uncontrolled Arterial Hypertension
* Uncontrolled Diabetes Mellitus,
* Mental retardation
* Antidepressant use
* Metabolic disorders
* Bleeding diathesis
* Patients with a body mass index above 30
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Bursa Yuksek Ihtisas Training and Research Hospital

OTHER_GOV

Sponsor Role lead

Responsible Party

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Korgün Ökmen

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Bursa Yuksek Ihtisas Training and Research Hospital

Bursa, , Turkey (Türkiye)

Site Status

Countries

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Turkey (Türkiye)

Central Contacts

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Korgün Ökmen, PhD.

Role: CONTACT

05057081021

Other Identifiers

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2024-ТВЕK 2025/07-05

Identifier Type: -

Identifier Source: org_study_id

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