Optimal Patient Positioning for Erector Spinae Plane Block in Laparoscopic Cholecystectomy:

NCT07018258 | Completed

• 1 other identifier: Cevher
• Study Type: interventional
• Target: 120
• Locations: 1 country
• Sites: 1

Brief Summary

This randomized clinical study aims to compare the postoperative analgesic efficacy, analgesic consumption, and patient satisfaction of erector spinae plane (ESP) block administered in three different patient positions-lateral, prone, and sitting-in individuals undergoing elective laparoscopic cholecystectomy. The study also evaluates the variation in skin-to-block site distance depending on patient positioning.

Conditions

Postoperative Pain; Anesthesia, Regional; Pain Management; Laparoscopic Cholecystectomy

Keywords

Erector Spinae Plane Block; Patient Positioning; Ultrasound-Guided Regional Anesthesia

Outcome Measures

Primary Outcomes (1)

• Postoperative Pain Score (VAS)

  Pain intensity will be assessed using the Visual Analog Scale (VAS, 0-10) at multiple time points following laparoscopic cholecystectomy. The goal is to compare postoperative pain scores between patient groups receiving ESP block in lateral, prone, or sitting positions.

  0, 2, 4, 6, 12, and 24 hours postoperatively

Secondary Outcomes (4)

• Total Postoperative Analgesic Consumption

  First 24 hours after surgery

• Time to First Analgesic Request

  Within 24 hours postoperatively

• Patient Satisfaction Score

  24 hours postoperatively

• Skin-to-Target Distance

  During preoperative ESP block procedure

Study Arms (3)

Lateral Position Group

EXPERIMENTAL

Patients in this group will receive bilateral erector spinae plane (ESP) block at the T7 level in the lateral decubitus position under ultrasound guidance before laparoscopic cholecystectomy.

Procedure: Erector Spinae Plane (ESP) Block

Prone Position Group

EXPERIMENTAL

Patients in this group will receive bilateral erector spinae plane (ESP) block at the T7 level in the lateral decubitus position under ultrasound guidance before laparoscopic cholecystectomy.

Procedure: Erector Spinae Plane (ESP) Block

Sitting Position Group

EXPERIMENTAL

Patients in this group will receive bilateral erector spinae plane (ESP) block at the T7 level in the lateral decubitus position under ultrasound guidance before laparoscopic cholecystectomy.

Procedure: Erector Spinae Plane (ESP) Block

Interventions

Erector Spinae Plane (ESP) Block PROCEDURE

Ultrasound-guided bilateral erector spinae plane (ESP) block performed at the T7 vertebral level. The intervention will be applied in three different patient positions-lateral, prone, or sitting-prior to laparoscopic cholecystectomy.

Also known as: Ultrasound-guided ESP block

Lateral Position Group; Prone Position Group; Sitting Position Group

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Age between 18 and 65 years
• Scheduled for elective laparoscopic cholecystectomy
• ASA physical status I-II
• Ability to understand and provide written informed consent

You may not qualify if:

• Allergy to local anesthetics
• History of chronic opioid use or substance abuse
• Coagulopathy or current anticoagulant therapy
• Local infection at the block site
• Severe spinal deformities or scoliosis
• BMI \> 35 kg/m²
• Pregnancy or breastfeeding
• Refusal to participate in the study

Sponsors & Collaborators

• Harran University: lead

Study Sites (1)

Veli Fahri Pehlivan

Sanliurfa, 63100, Turkey (Türkiye)

Location

MeSH Terms

Conditions

Pain, Postoperative; Agnosia

Interventions

Parapsychology; Dental Occlusion

Condition Hierarchy (Ancestors)

Postoperative Complications; Pathologic Processes; Pathological Conditions, Signs and Symptoms; Pain; Neurologic Manifestations; Signs and Symptoms; Perceptual Disorders; Neurobehavioral Manifestations; Nervous System Diseases

Intervention Hierarchy (Ancestors)

Behavioral Sciences; Behavioral Disciplines and Activities; Dentistry; Dental Physiological Phenomena; Digestive System and Oral Physiological Phenomena

Study Officials

• Veli F Pehlivan, Asiss Prof

  Harran University Faculty of Medicine, Department of Anesthesiology

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: OUTCOMES ASSESSOR
• Masking Details: The person evaluating postoperative pain scores and satisfaction will be blinded to group assignment.
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Assistant Professor

Model Details: Patients will be randomly assigned to receive ESP block in either the lateral, prone, or sitting position prior to laparoscopic cholecystectomy.

Study Record Dates

• First Submitted: June 4, 2025
• First Posted: June 12, 2025
• Study Start: June 27, 2025
• Primary Completion: November 10, 2025
• Study Completion: December 10, 2025
• Last Updated: February 27, 2026

Record last verified: 2026-02

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)