Comparison of Paragastric Nerve Block and Erector Spinae Plane Block on Postoperative Pain After Sleeve Gastrectomy
Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-65
SponsorAtlas University
About this trial
Background: Laparoscopic sleeve gastrectomy is one of the most commonly performed bariatric procedures for the treatment of obesity. Despite its minimally invasive nature, patients frequently experience moderate to severe postoperative pain, which may delay mobilization, prolong hospital stay, increase opioid consumption, and reduce patient satisfaction. Effective postoperative pain management is therefore an important component of perioperative care.
Regional analgesia techniques are increasingly used as part of multimodal analgesia protocols to reduce opioid requirements and opioid-related adverse effects. Paragastric nerve block (PGNB) has been reported to provide effective control of visceral pain, nausea, and vomiting after sleeve gastrectomy. Erector spinae plane block (ESPB) is another regional anesthesia technique that has demonstrated efficacy in reducing perioperative opioid consumption in bariatric surgery patients. However, no prospective randomized study has directly compared PGNB and ESPB in patients undergoing sleeve gastrectomy.
This prospective, randomized, controlled clinical trial aims to compare the effects of PGNB, ESPB, and standard analgesia on postoperative pain management following laparoscopic sleeve gastrectomy. Seventy-two adult patients scheduled for elective sleeve gastrectomy will be randomized in a 1:1:1 ratio to receive PGNB, ESPB, or standard multimodal analgesia alone. The primary outcome will be postoperative pain intensity measured using the Visual Analog Scale (VAS) at 1, 6, 12, and 24 hours after surgery. Secondary outcomes include postoperative opioid consumption, intraoperative remifentanil consumption, additional analgesic requirements, time to first analgesic request, postoperative nausea and vomiting, and block-related complications.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Age between 18 and 65 years Scheduled for elective Sleeve Gastrectomy surgery Classified as ASA physical status II-III Body mass index (BMI) ≥30 kg/m² with obesity-related comorbidities or BMI ≥40 kg/m² Willing to participate in the study and has provided written informed consent
Disqualifiers
Known allergy or hypersensitivity to local anesthetic agents Allergy or contraindication to paracetamol or NSAIDs Coagulopathy or current anticoagulant therapy Infection or skin lesions at the site of block application Chronic pain syndrome Chronic opioid use, opioid dependence, or use of gabapentin/pregabalin Previous upper gastrointestinal surgery Moderate to severe renal impairment (eGFR <60 mL/min/1.73 m²) Moderate to severe liver disease (Child-Pugh B-C or active hepatic disease) Planned additional surgical procedures Inability to assess pain using VAS Refusal to participate in the study
Trial design
Design model
Parallel
Treatments tested in this trial
Paragastric Nerve Block (PGNB)
Procedure/SurgeryUltrasound-guided paragastric nerve block performed intraoperatively for postoperative analgesia.
ESPB
Procedure/SurgeryBilateral ultrasound-guided erector spinae plane block performed at the T6 vertebral level before surgery using 0.25% bupivacaine. The total dose will not exceed 2 mg/kg. The block is administered in addition to standard general anesthesia and multimodal analgesia.
Active Comparator
Procedure/SurgeryPatients receive standard perioperative multimodal analgesia without regional anesthesia techniques. Intravenous paracetamol (1 g) and dexketoprofen (50 mg) are administered intraoperatively according to institutional protocol.
Treatment groups
72 Participants
are divided into 3 treatment groupsGroup A: Paragastric Nerve Block (PGNB)Experimental treatment 3 interventions
Group B: Erector Spinae Plane Block (ESPB)Experimental treatment 3 interventions
Group C: No InterventionActive comparator 3 interventions
Trial outcomes
Primary outcomes
1
Primary Outcome
The primary outcome of this study is the assessment of postoperative pain levels. Pain intensity will be measured using the Visual Analog Scale (VAS; 0 = no pain, 10 = worst imaginable pain) at the 1st, 6th, 12th, and 24th postoperative hours. The effectiveness of the analgesic techniques will be evaluated by comparing VAS scores between the groups.
Time frame
Postoperative Hours 1, 6, 12, and 24Locations
Sponsors and contacts
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Source ClinicalTrials.gov
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