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Not yet recruiting NCT07387484

Effect of Patient Position on Erector Spinae Plane Block in Thoracic Surgery

No phase Interventional Thoracic Surgery, Video Assisted Postoperative Pain

For patients and families

In plain language

An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.

What is being studied
The protocol lists: Erector Spinae (ESP) Block with Bupivacaine (Marcaine®) sitting position, Erector Spinae (ESP) Block with Bupivacaine (Marcaine®) lateral position.
Who it may be relevant to
Registry conditions: Thoracic Surgery, Video Assisted, Postoperative Pain. Basic parameters: 18 years — 75 years · All.
What needs checking
Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
Where it takes place
Center list to be confirmed — check the primary protocol.
Next step
Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →

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Official title

Effect of Patient Position on Dermatomal Spread and Analgesic Outcomes of Erector Spinae Plane Block in Thoracic Surgery: A Prospective Randomized Clinical Trial

Overview

The erector spinae plane (ESP) block is a widely used regional anesthesia technique for postoperative analgesia in thoracic surgery. The block can be performed in different patient positions, most commonly sitting or lateral decubitus, but the effect of patient position on dermatomal sensory spread and analgesic efficacy has not been clearly established. This prospective, randomized, single-blind clinical trial aims to compare the effects of ESP block performed in sitting versus lateral decubitus position on dermatomal sensory distribution and postoperative analgesic outcomes in patients undergoing video-assisted thoracic surgery.

Detailed description

Adult patients scheduled for elective video-assisted thoracic surgery will be randomly assigned to receive ultrasound-guided unilateral erector spinae plane block either in the sitting position or in the lateral decubitus position. In both groups, the block will be performed at the same thoracic level using 30 mL of 0.25% bupivacaine under ultrasound guidance.

Dermatomal sensory spread will be assessed 15 minutes after block placement using cold sensation (alcohol-soaked cotton) and pin-prick testing. Postoperative analgesia will be standardized in all patients using patient-controlled analgesia with tramadol. Pain scores and opioid consumption will be recorded during the first 24 postoperative hours.

The primary outcome is the extent of dermatomal sensory spread. Secondary outcomes include postoperative pain scores, time to first rescue analgesic, and total opioid consumption within 24 hours.

Interventions

  • Drug Erector Spinae (ESP) Block with Bupivacaine (Marcaine®) sitting position
    Erector spinae plane block-sitting position
  • Drug Erector Spinae (ESP) Block with Bupivacaine (Marcaine®) lateral position
    Erector Spinae Plane Block-Lateral position

Primary outcome measures

  • Dermatomal sensory spread [Time frame: 15 minutes after the block application]
Secondary outcome measures (2)
  • Postoperative pain scores (Numeric Rating Scale) [Time frame: Postoperative 0, 2, 6, 12, and 24 hours]
  • Total opioid consumption [Time frame: First 24 postoperative hours]

Eligibility criteria

Inclusion criteria

  • Age 18 to 75 years
  • ASA physical status II-IV
  • Scheduled for elective video-assisted thoracic surgery
  • Ability to provide written informed consent

Exclusion criteria

  • Known allergy to local anesthetics
  • Chronic opioid use
  • Preexisting chronic pain
  • Severe cognitive impairment
  • Technical difficulty with positioning
  • Emergency surgery
  • Refusal to participate

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: No

Study design

Allocation
Randomized
Model
Parallel assignment
Masking
Double blind
Primary purpose
Treatment

Study locations

Center list to be confirmed — check the primary protocol.

Identifiers

NCT: NCT07387484 · ESP_position

Primary sources (government registries)

View this study on ClinicalTrials.gov ↗