The Effects of Erector Spinae Plane Block on Bariatric Surgery.

  • End date
    Sep 15, 2022
  • participants needed
  • sponsor
    Karaman Training and Research Hospital
Updated on 22 September 2021


The erector spinae plane block (ESPB) is a new technique that is increasingly used in the treatment of acute and chronic pain. Bariatric surgery is a surgical treatment method used in the treatment of morbid obesity and related comorbidities. Providing pain control in obese patients is a topic that remains up-to-date. Poorly controlled early postoperative pain impairs quality of recovery, increases the risk of postoperative pulmonary complications, and is a risk factor for the subsequent development of chronic pain. Therefore, optimizing acute postoperative analgesia is a priority in patients undergoing bariatric surgery. The primary aim of this prospective, randomized study is to evaluate the effect of ESPB on quality of recovery with the QoR-40 questionnaire in patients undergoing elective Laparoscopic Bariatric Surgery.


In the operating room, all patients will receive standard monitoring, including electrocardiography, non-invasive blood pressure, and peripheral oxygen saturation. Patients in the ESPB group will be placed in a sitting position. A convex probe ultrasound transducer will be placed in a longitudinal parasagittal orientation approximately 3 cm lateral to the spinous process. The needle tip was advanced until it will be located in the inter-fascial plane deep to the erector spinae muscle group and superior to the transverse process. Once in position, bupivacaine 0.25%, 20 ml was injected under ultrasound, guidance. The same procedure will be repeated on the contralateral site. Standard perioperative and postoperative analgesia protocol will be given and postoperative pain levels will be determined by Numerical Rating Scale (NRS). NRS scores for pain and postoperative opioid consumption will be recorded on the 15th,30th minute, 1st, 2nd, 12th, 24th hour, 2nd day. Quality of recovery-40 (QoR-40) scores will be given on the ward, at postoperative 24th hour, 3rd and 7th day ( the 3rd and 7th-day scores will be calculated after telephone interview if the patient will be discharged from the hospital).

Condition Laparoscopic Bariatric Surgery
Treatment ESP block, Perioperative and postoperative multimodal analgesia
Clinical Study IdentifierNCT05020379
SponsorKaraman Training and Research Hospital
Last Modified on22 September 2021


Yes No Not Sure

Inclusion Criteria

Scheduled for elective laparoscopic bariatric surgery

Exclusion Criteria

a history of allergy to local anesthetics
known coagulation disorders
infection near the puncture site
Chronic opioid intake
Patient with psychiatric disorders
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