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Completed

NCT Number: NCT05723380

Prediction of Clinical Outcome in Thoracic ESPB

The primary endpoint of this study was to identify that Perfusion index (PI) has any predictive value for the treatment outcome of cervical radiculopathy

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Key information

Conditions

Pain, Chronic Chronic Pain Neurologic Manifestations Pain Pathological Conditions, Signs and Symptoms Signs and Symptoms

Age range

20 year–80 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Ji Hoon Park

Daegu, 42601, South Korea

About this study

The erector spinae plane block (ESPB) is a less invasive, safer, and technically easy alternative procedure to conventional neuraxial anesthetic techniques. In contrast to common neuraxial techniques such as paravertebral and epidural injections, the ESPB targets an interfascial plane which is far from the spinal cord, root, and pleura. First applied to thoracic neuropathic pain, currently ESPB is being applied to postoperative pain control and includes variable clinical situations. In the abdomen and thoracic wall, thoracic ESPB can be applied for pain control after cardiac surgery, video-assisted thoracic surgery, laparoscopic cholecystectomy, and thoracotomy. Recently, favorable postoperative pain control after lumbar spinal or lower limb surgeries has been reported with lumbar ESPB. In addition, ESPB has also been used for chronic pain conditions in the upper and lower extremities. The perfusion index (PI) is a numerical value for the ratio between pulsatile and non-pulsatile blood flow measured by a special pulse oximeter. Although the special probe for PI measurement is relatively more expensive compared with ordinary pulse oximetery probes, its benefit as a marker of peripheral perfusion and as an idex for sympathetic stimulation have increased its use progressively. PI has been used widely for the prediction of success of brachial plexus block or axillary block. Changes of PI ratio value showed an excellent predictive value for the success of block. There have been no studies demonstrating predictive value of PI in thoracic ESPB for the relief of cervical radiulopathy

Who can participate

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Cervical foraminal stenosis
  • Cervical central stenosis
  • Cerivcal disc herniation
  • Cervical spondylolisthesis

Exclusion criteria

  • infection
  • pregnancy
  • allergy to local anesthetic agents
  • previous cervical spine surgery

Treatment and study plan

Erector Spinae Plane Block

Procedure

T2 ESPB group where ESPB is performed at T2 with local anesthetics 20ml

Primary outcomes

  1. Perfusion index changes among 4 time periods

    Time frame: baseline, 10 minutes after erector spinae plane block, 20 minutes after erector spinae plane block, 30 minutes after erector spinae plane block

    Perfusion index changes among 4 time periods

  2. Number of patients showing numerical rating scale reduction more than 50%

    Time frame: 1 month after ESPB

    Number of patients showing numerical rating scale reduction more than 50%

  3. Number of patients showing numerical rating scale reduction less than 50%

    Time frame: 1 month after ESPB

    Number of patients showing numerical rating scale reduction less than 50%

  4. Number of patients showing no reduction in numerical rating scale

    Time frame: 1 month after ESPB

    Number of patients showing no reduction in numerical rating scale

  5. Neck disability index changes between 2 time periods

    Time frame: baseline, 1 month after ESPB

    Neck disability index changes between 2 time periods

Sponsors and collaborators

Lead sponsor

Keimyung University Dongsan Medical Center

Other

Registry information

Official study title

Perfusion Index Value in Predicting the Clinical Outcome of Thoracic ESPB

Important dates

Study start
2023
Primary completion
2023
Study completion
2023
First posted
Feb 10, 2023
Registry last updated
Oct 7, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

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This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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