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Erector spinae plane block in laparoscopic cholecystectomy, is there a difference? A randomized controlled trial

 Department of Anaesthesiology, Faculty of Medicine, Zagazig University, Zagazig, Egypt

Correspondence Address:
Mohamed Ibrahim,
AL Rakah Shamalia District, Khaled Ibn Elwaleed Street, P. O. Box: 7576, Dammam 34225
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/aer.AER_144_19

Background: The ultrasound (US)-guided erector spinae plane (ESP) block and oblique subcostal transversus abdominis plane (OSTAP) block are used to decrease postoperative pain and subsequently opioids consumption. Aim: The aim was to test the hypothesis that US-guided ESP blocks can produce more reduction in opioid usage during the first 24 h after laparoscopic cholecystectomy when compared to OSTAP block. Settings and Design: Seventy adult patients (20–60 years old) who were planned to undergo elective laparoscopic cholecystectomy were allocated in three groups in randomized controlled trial. Materials and Methods: The three groups received either port site infiltration, US-guided bilateral ESP block (ESP group), or OSTAP (OSTAP group) with bupivacaine hydrochloride 0.25%. Statistical Analysis: Postoperative 24 h Morphine consumption, visual analogue scale (VAS), the intraoperative fentanyl (μg) and equivalent morphine dose in the recovery unit were recorded and analyzed using one-way analysis of variance. Results: The mean 24-h morphine consumption was statistically significant between groups (P < 0.001), but it was insignificant between ESP and OSTAP (P = 0.173). Median (range) and interquartile range of intraoperatively consumed fentanyl showed significance between the three groups (P < 0.001). There was insignificance between ESP block Group II and OSTAP block Group III (P = 0.95) by post hoc analysis. The mean values of VAS at both rest and movement of the control group were significantly higher than the ESP block group at 6 and 12 h postoperative. Conclusion: Bilateral US-guided ESP block was found to be as effective as bilateral US OSTAP block. There was more decrease in intraoperative rescue fentanyl, PACU morphine analgesia, 24-h morphine, and pain assessment score in both groups than the control port-site infiltration group. Clinical trial registration number: NCT03398564.

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