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NCT Number: NCT07578545

The Impact of Video-assisted Thoracic Surgery and Regional Anaesthesia on Postoperative Opioid Consumption and Pain Scores

This present study aims is to compare the effects of ultrasound-guided paravertebral block, intertransverse process block, and erector spinae plane block on postoperative opioid consumption, and pain scores in patients undergoing VATS.

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Key information

Conditions

Thoracic Surgery Chronic Pain Neurologic Manifestations Pain Pain Score Pathological Conditions, Signs and Symptoms Postoperative Analgesia Regional Anaesthesia Signs and Symptoms Videoassisted Thoracoscopic Surgery,One-lung Ventilation

Age range

18 year–75 year

Sex eligibility

All sexes

Study type

Observational

Primary location

University of Health Sciences, Antalya Training and Research Hospital

Antalya, Muratpaşa, Turkey (Türkiye)

Location status: Recruiting

About this study

Video-assisted thoracic surgery (VATS) has become increasingly popular in Thoracic Surgery due to faster recovery and less postoperative pain compared to thoracotomy. However, although VATS has been reported to cause less postoperative pain than thoracotomy, it has also been shown to significantly increase the risk of acute and chronic postoperative pain, which negatively impacts postoperative pain recovery. Inadequate postoperative pain management can reduce the quality of a patient's recovery and increase the risk of postoperative pulmonary complication. Therefore, controlling pain in patients undergoing VATS is key to ensuring early mobilisation, and minimising the risk of pulmonary complications. Regional anaesthesia techniques are an important part of multimodal analgesia approach in patients undergoing VATS. The aim of the present study is to compare the effects of ultrasound-guided regional anaesthesia techniques on postoperative opioid consumption, and pain scores in patients undergoing VATS.

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • aged 18-75 years
  • American Society of Anaesthesiology (ASA) score I-III
  • body mass index (BMI) <35kg/m2
  • scheduled for elective VATS

Exclusion criteria

  • ASA score ≥4
  • BMI ≥35 kg/m2
  • declining to give written informed consent
  • controendications for block application
  • inability to undergo block application
  • history neurological disease or peripheral nerve disease
  • history of chronic opioid use
  • history of severe liver or kidney failure
  • patients admitted to the intensive care unit postoperatively intubated

Treatment and study plan

Paravertebral block group

Other

Before the surgery, ultrasoud-guided paravertebral block will be performed before the surgery under standart anaesthesia monitoring

İntertransverse process block group

Other

Before the surgery, ultrasoud-guided intertransverse process block will be performed before the surgery under standart anaesthesia monitoring

Erector spinae plane block group

Other

Before the surgery, ultrasoud-guided erector spinae plane block will be performed before the surgery under standart anaesthesia monitoring

Primary outcomes

  1. Postoperative opioid consumption

    Time frame: 24 hours

    All patients will receive a standard patient analgesia (PCA) protocol after operation. The postoperative opioid consumption will only be recorded.

Secondary outcomes

  1. Postoperative Numerical Rating Scale (NRS) pain scores

    Time frame: postoperative 24 hours

    The postoperative pain intensity will be assessed with the Numerical Rating Scale (NRS) score (0=no pain; 10=most severe pain).

  2. Chronic pain

    Time frame: 3 months

    Patients will be telephoned 3 months after the surgery and the presence, localization, intensity of the pain , its character, and its relation with rest and/or activity will be recorded by asking only verbally.

Study contacts

Contact information is provided by the study sponsor or research team.

Batuhan Kilic

CONTACT

+905319001549

Sadik Ozmen

CONTACT

[email protected]

+905324205282

Sponsors and collaborators

Lead sponsor

Antalya Training and Research Hospital

Other Gov

Registry information

Official study title

The Effect of Paravertebral Block, Intertransverse Block, and Erector Spinae Plane Block on Postoperative Opioid Consumption and Pain Scores in Video-assisted Thoracic Surgery: a Prospective Observational Study

Important dates

Study start
2026
Primary completion
2026
Study completion
2026
First posted
May 11, 2026
Registry last updated
May 11, 2026

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

View the official ClinicalTrials.gov record (opens in a new tab)

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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