NCT07830290

Brief Summary

This study compared the postoperative analgesic efficacy of ultrasound-guided erector spinae plane (ESP) block and retrolaminar block in patients undergoing video-assisted thoracoscopic surgery (VATS). Adult patients were randomly assigned to receive either an ESP block or a retrolaminar block after induction of general anesthesia. Postoperative pain intensity was assessed using the Numeric Rating Scale (NRS) at predefined time points. Postoperative analgesic requirements and intraoperative opioid consumption were also evaluated.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
54

participants targeted

Target at below P25 for not_applicable postoperative-pain

Timeline
Completed

Started Apr 2023

Shorter than P25 for not_applicable postoperative-pain

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 1, 2023

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 31, 2023

Completed
1 day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2023

Completed
3.3 years until next milestone

First Submitted

Initial submission to the registry

September 14, 2026

Completed
7 days until next milestone

First Posted

Study publicly available on registry

September 21, 2026

Completed
Last Updated

September 21, 2026

Status Verified

September 1, 2026

Enrollment Period

2 months

First QC Date

September 14, 2026

Last Update Submit

September 18, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Postoperative Pain Intensity Assessed Using the 11-Point Numeric Rating Scale

    Postoperative pain intensity was assessed using the 11-point Numeric Rating Scale, ranging from 0 to 10, where 0 indicates no pain and 10 indicates the worst imaginable pain. Higher scores indicate greater pain intensity and therefore a worse outcome. Pain scores were recorded at 1, 6, 12, and 24 hours after surgery.

    1, 6, 12, and 24 hours after surgery

Secondary Outcomes (4)

  • Postoperative Analgesic Requirement

    Within the first 24 hours after surgery

  • Intraoperative Remifentanil Consumption

    From induction of anesthesia until the end of surgery

  • Postoperative Nausea and Vomiting (PONV)

    Within the first 24 hours after surgery

  • Number of Block Attempts

    During block performance procedure

Study Arms (2)

Erector Spinae Plane Block Group

EXPERIMENTAL

Participants assigned to this group received an ultrasound-guided erector spinae plane (ESP) block after induction of general anesthesia. The block was performed as part of the perioperative analgesia protocol for video-assisted thoracoscopic surgery.

Procedure: Erector spinae plane block (ESP)

Retrolaminar Block Group

EXPERIMENTAL

Participants assigned to this group received an ultrasound-guided retrolaminar block after induction of general anesthesia. The block was performed as part of the perioperative analgesia protocol for video-assisted thoracoscopic surgery.

Procedure: Retrolaminar block group

Interventions

An ultrasound-guided erector spinae plane block was performed after induction of general anesthesia. The block was administered as a regional analgesic technique in patients undergoing video-assisted thoracoscopic surgery.

Erector Spinae Plane Block Group

An ultrasound-guided retrolaminar block was performed after induction of general anesthesia. The block was administered as a regional analgesic technique in patients undergoing video-assisted thoracoscopic surgery.

Retrolaminar Block Group

Eligibility Criteria

Age18 Years - 81 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age between 18 and 81 years
  • American Society of Anesthesiologists (ASA) physical status I or II
  • Scheduled to undergo video-assisted thoracoscopic surgery (VATS)
  • Provided written informed consent to participate in the study

You may not qualify if:

  • ASA physical status III or higher
  • Decompensated organ failure
  • Pregnancy
  • Known allergy or hypersensitivity to local anesthetics
  • Withdrawal of consent or request to discontinue participation in the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Gülhane Training and Research Hospital

Ankara, Eti̇mesgut, Turkey (Türkiye)

Location

MeSH Terms

Conditions

Pain, Postoperative

Condition Hierarchy (Ancestors)

Postoperative ComplicationsPathologic ProcessesPathological Conditions, Signs and SymptomsPainNeurologic ManifestationsSigns and Symptoms

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
The investigator responsible for postoperative pain assessment using the Numeric Rating Scale (NRS) was blinded to group allocation. The clinician responsible for determining the need for rescue analgesia was also unaware of the assigned block technique. The anesthesiologist performing the block was not blinded due to the nature of the intervention
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Anesthesiology and Reanimation Resident

Study Record Dates

First Submitted

September 14, 2026

First Posted

September 21, 2026

Study Start

April 1, 2023

Primary Completion

May 31, 2023

Study Completion

June 1, 2023

Last Updated

September 21, 2026

Record last verified: 2026-09

Data Sharing

IPD Sharing
Will not share

Locations