Evaluating patient positions for pain relief after a specific nerve block

Effect of Different Patient's Positions on Postoperative Analgesia of Ultrasound-guided Erector Spinae Plane Block

Not applicable Interventional Nanjing First Hospital, Nanjing Medical University · NCT06441071

This study is testing whether lying on your side or stomach after a specific nerve block can help reduce pain better than lying on your back for patients having thoracoscopic surgery.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment200 (estimated)
Ages18 Years to 80 Years
SexAll
SponsorNanjing First Hospital, Nanjing Medical University Academic / other
Locations1 site (Nanjing, Jiangsu)
Trial IDNCT06441071 on ClinicalTrials.gov

What this trial studies

This clinical trial investigates the impact of different patient positions (supine, lateral, and prone) on the effectiveness of the erector spinae plane block (ESPB) for postoperative analgesia in patients undergoing elective thoracoscopic surgery. A total of 200 patients will be randomly assigned to one of four groups, including a control group receiving a paravertebral block. The study aims to determine whether maintaining a lateral or prone position after the ESPB leads to better pain management compared to the supine position, as measured by opioid consumption and patient-reported outcomes. The ESPB will be performed using ultrasound guidance prior to general anesthesia, and sensory block will be assessed afterward.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18-80 undergoing elective thoracoscopic surgery with a BMI between 18-30 and ASA classification I-III.

Not a fit: Patients with allergies to local anesthetics, history of opioid abuse, or certain medical conditions such as coagulation abnormalities may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance postoperative pain management strategies, potentially reducing opioid consumption and improving recovery experiences for patients.

How similar studies have performed: While the specific approach of this study may be novel, similar studies have shown that patient positioning can influence analgesic outcomes in regional anesthesia.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

Patients undergoing Video-assisted Thoracoscopic Surgery under elective general anaesthesia were selected, regardless of sex, age 18-80 years, BMI: 18-30 kg.m-2, ASA classification I-III.

Exclusion Criteria:

1. Allergy to the study drug or allergy to local anaesthetics;
2. History of opioid abuse;
3. Previous nerve block puncture with puncture site infection;
4. Peripheral neuropathy;
5. Coagulation abnormalities, defined as prothrombin time or partial activation time prothrombin time exceeding standard values or international normalised ratio (INR) ≥ 1.4, or platelet count ≤ 70 x 109 L-1.

Where this trial is running

Nanjing, Jiangsu

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Erector Spinae Plane BlockParavertebral thoracic blockClinical applicationPerioperative analgesiaErector spinae plane block
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.