Efficacy of Erector Spinae Plane Block on Postoperative Analgesia for Patients Undergoing Metabolic Bariatric Surgery: A Randomized Controlled Trial

The analgesic efficacy of Erector Spinae Plane Block in patients undergoing Laparoscopic Bariatric Surgery : A randomized controlled trial

Status

Active, not recruiting

Phases

Phase 2Phase 3

Study type

Interventional

Source

TCTR

Registry ID

TCTR20220523001

Enrollment

Registered

2022-05-23

Start date

2022-05-06

Completion date

Unknown

Last updated

2026-03-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

bariatric surgery, morbid obesity, Metabolic Bariatric Surgery erector spinae plane block, postoperative pain, pain, bariatric surgery, Metabolic Bariatric Surgery, quality of recovery

Interventions

Patients receive bilateral ultrasound guided ESPB at T7 level using 0.25% bupivacaine with adrenaline (1:200,000) 25 ml each side before induction of general anesthesia. Standard perioperative and po

Experimental Procedure/Surgery,No Intervention Other

Erector Spinae Plane Block ,Control

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. patients aged 18 years or above, scheduled for laparoscopic bariatric surgery at King Chulalongkorn Memorial Hospital 2. American society of Anesthesiologist (ASA) physical status class 1-3 3. Participant is willing and able to give informed consent for participation in the study

Exclusion criteria

Exclusion criteria: 1. Hypersensitivity to the drugs used in the study 2. Unable to perform the Thai QoR-35 questionnaire and use numerical rating scale (NRS) 3. Chronic opioid use 4. Unable to use patient controlled analgesia (PCA) device 5. Denie to recived ESPB 6. Infection at the puncture site 7. Require postoperative ICU admission and remain intubation 8. The presence of coagulopathy, hepatic, renal, or uncontrolled cardiovascular/respiratory disease

Design outcomes

Primary

Measure	Time frame
24-h morphine consumption 24-hour postoperative 24-h morphine consumption via a patient-controlled analgesia machine	—

Secondary

Measure	Time frame
Postoperative pain assessment at 0, 1, 6, 12, 18 and 24 h after surgery Numerical rating scale at rest and on motion ,Intraoperative and PACU fentanyl consumption Intraoperative and at PACU Anesthetic record,Time to the first postoperative morphine dose Postoperative PCA device record ,Intraoperative desflurane consumption End of anesthesia Anesthetic machine record,Quality of Recovery 24-hour postoperative The Thai QoR-35 questionnaire,Side effect : nausea and vomiting 24-hour postoperative Patient's symptom and nurse record,Patient satisfaction score 24-hour postoperative Numerical rating scale from 5 to (-)5	—

Measure

Time frame

Postoperative pain assessment at 0, 1, 6, 12, 18 and 24 h after surgery Numerical rating scale at rest and on motion ,Intraoperative and PACU fentanyl consumption Intraoperative and at PACU Anesthetic record,Time to the first postoperative morphine dose Postoperative PCA device record ,Intraoperative desflurane consumption End of anesthesia Anesthetic machine record,Quality of Recovery 24-hour postoperative The Thai QoR-35 questionnaire,Side effect : nausea and vomiting 24-hour postoperative Patient's symptom and nurse record,Patient satisfaction score 24-hour postoperative Numerical rating scale from 5 to (-)5

—

Countries

Thailand

Contacts

Public ContactMarvin Thepsopan

Faculty of Medicine, Chulalongkorn University

marvin.thep@gmail.com6622564000

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Apr 4, 2026