Effects of ultrasound-guided external oblique intercostal plane block on the postoperative analgesia after open liver surgery: study protocol for a randomised controlled trial

Abstract Background Open liver surgery remains a primary surgical approach for complex liver resections and liver transplantation. However, the postoperative pain management is still a major challenge. Ultrasound-guided external oblique intercostal (EOI) plane block is a novel approach of regional a...

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Main Authors: Jiali Tang, Qingqing Hua, Yuelun Zhang, Weihua Nie, Songlin Yu, Jinlan Zhang
Format: Article
Language:English
Published: BMC 2024-11-01
Series:Trials
Subjects:
Online Access:https://doi.org/10.1186/s13063-024-08449-3
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author Jiali Tang
Qingqing Hua
Yuelun Zhang
Weihua Nie
Songlin Yu
Jinlan Zhang
author_facet Jiali Tang
Qingqing Hua
Yuelun Zhang
Weihua Nie
Songlin Yu
Jinlan Zhang
author_sort Jiali Tang
collection DOAJ
description Abstract Background Open liver surgery remains a primary surgical approach for complex liver resections and liver transplantation. However, the postoperative pain management is still a major challenge. Ultrasound-guided external oblique intercostal (EOI) plane block is a novel approach of regional anaesthesia and has a great potential to relieve postoperative pain after upper abdominal surgeries. This study aims to investigate the efficacy and safety of ultrasound-guided EOI plane block in managing postoperative pain after open liver surgery. Methods Seventy-four participants scheduled for open liver surgery will be randomly assigned to either the intervention group, receiving an ultrasound-guided EOI plane block with a single dose of 30 ml 0.375% ropivacaine, or the control group, which will not receive this block. All participants will be provided with opioid-based patient-controlled intravenous analgesia (PCIA) postoperatively. The primary outcome is resting pain score at 3 h postoperatively, assessed using numerical rating scale. Secondary outcomes include pain score at 6, 24, 48, and 72 h postoperatively, perioperative opioid consumption, remedial analgesics within 72 h postoperatively, PCIA usage within postoperative 72 h, postoperative recovery, length of hospital stay, postoperative side effects, block-related complications, and ropivacaine plasma concentration of participants receiving the block. Discussion This study is a randomised controlled trial to evaluate the efficacy and safety of ultrasound-guided EOI plane block for postoperative analgesia after open liver surgery. As regional anaesthesia plays an important role in the multimodal pain management, EOI plane block may prove to be an effective regional technique for enhancing postoperative pain relief and contributing to enhanced recovery after open liver surgery. Trial registration Chinese Clinical Trial Registry ChiCTR2200065745. Registered on November 14, 2022.
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spelling doaj-art-f69f992cc020411289dd89c746d2d65a2024-11-17T12:47:19ZengBMCTrials1745-62152024-11-012511910.1186/s13063-024-08449-3Effects of ultrasound-guided external oblique intercostal plane block on the postoperative analgesia after open liver surgery: study protocol for a randomised controlled trialJiali Tang0Qingqing Hua1Yuelun Zhang2Weihua Nie3Songlin Yu4Jinlan Zhang5Department of Anesthesiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeDepartment of Anesthesiology, Xingyi People’s Hospital, the affiliated hospital of Guizhou Medical UniversityMedical Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeOperating Room, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeDepartment of Laboratory Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeInstitute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical SciencesAbstract Background Open liver surgery remains a primary surgical approach for complex liver resections and liver transplantation. However, the postoperative pain management is still a major challenge. Ultrasound-guided external oblique intercostal (EOI) plane block is a novel approach of regional anaesthesia and has a great potential to relieve postoperative pain after upper abdominal surgeries. This study aims to investigate the efficacy and safety of ultrasound-guided EOI plane block in managing postoperative pain after open liver surgery. Methods Seventy-four participants scheduled for open liver surgery will be randomly assigned to either the intervention group, receiving an ultrasound-guided EOI plane block with a single dose of 30 ml 0.375% ropivacaine, or the control group, which will not receive this block. All participants will be provided with opioid-based patient-controlled intravenous analgesia (PCIA) postoperatively. The primary outcome is resting pain score at 3 h postoperatively, assessed using numerical rating scale. Secondary outcomes include pain score at 6, 24, 48, and 72 h postoperatively, perioperative opioid consumption, remedial analgesics within 72 h postoperatively, PCIA usage within postoperative 72 h, postoperative recovery, length of hospital stay, postoperative side effects, block-related complications, and ropivacaine plasma concentration of participants receiving the block. Discussion This study is a randomised controlled trial to evaluate the efficacy and safety of ultrasound-guided EOI plane block for postoperative analgesia after open liver surgery. As regional anaesthesia plays an important role in the multimodal pain management, EOI plane block may prove to be an effective regional technique for enhancing postoperative pain relief and contributing to enhanced recovery after open liver surgery. Trial registration Chinese Clinical Trial Registry ChiCTR2200065745. Registered on November 14, 2022.https://doi.org/10.1186/s13063-024-08449-3Open liver surgeryRegional anaesthesiaExternal oblique intercostal plane blockPain managementEnhanced recovery after surgeryRandomised controlled trial
spellingShingle Jiali Tang
Qingqing Hua
Yuelun Zhang
Weihua Nie
Songlin Yu
Jinlan Zhang
Effects of ultrasound-guided external oblique intercostal plane block on the postoperative analgesia after open liver surgery: study protocol for a randomised controlled trial
Trials
Open liver surgery
Regional anaesthesia
External oblique intercostal plane block
Pain management
Enhanced recovery after surgery
Randomised controlled trial
title Effects of ultrasound-guided external oblique intercostal plane block on the postoperative analgesia after open liver surgery: study protocol for a randomised controlled trial
title_full Effects of ultrasound-guided external oblique intercostal plane block on the postoperative analgesia after open liver surgery: study protocol for a randomised controlled trial
title_fullStr Effects of ultrasound-guided external oblique intercostal plane block on the postoperative analgesia after open liver surgery: study protocol for a randomised controlled trial
title_full_unstemmed Effects of ultrasound-guided external oblique intercostal plane block on the postoperative analgesia after open liver surgery: study protocol for a randomised controlled trial
title_short Effects of ultrasound-guided external oblique intercostal plane block on the postoperative analgesia after open liver surgery: study protocol for a randomised controlled trial
title_sort effects of ultrasound guided external oblique intercostal plane block on the postoperative analgesia after open liver surgery study protocol for a randomised controlled trial
topic Open liver surgery
Regional anaesthesia
External oblique intercostal plane block
Pain management
Enhanced recovery after surgery
Randomised controlled trial
url https://doi.org/10.1186/s13063-024-08449-3
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