• Akin Disikirik, Murat Bilgi, Mustafa Turkoglu, and Erhan Renan Ucaroglu.
• Department of Anaesthesiology and Reanimation, Abant Izzet Baysal University Medical School, Bolu, Turkiye.
• J Coll Physicians Surg Pak. 2024 Feb 1; 34 (2): 129134129-134.

ObjectiveTo investigate the effect of preemptive erector spinae plane (ESP) block application on postoperative pain scores and opioid demand in off-pump coronary artery bypass graft (CABG) surgery.Study DesignRandomised-controlled trial. Place and Duration of the Study: Department of Anaesthesiology and Reanimation, Abant Izzet Baysal University (AIBU) Medical School, Bolu, Turkiye, from November 2020 to April 2021.MethodologyFifty patients between the ages of 50 and 75 years, received CABG surgery. These participants who were at risk of the American Society of Anesthesiologists (ASA) III were randomly divided into two groups: ESP (Group E) and Control (Group C). Intervention in Group E was performed bilaterally at the T5 level before the operation. In the study, the primary outcome was postoperative opioid demand while the secondary outcomes consisted of intraoperative opioid demand, visual analogue scale scores, and the duration of hospital stay.ResultsTramadol demand was significantly decreased in Group E at 0-1, 1-12, 12-24, and 0-48 hours (p <0.05). Intraoperative fentanyl demand for Group E was also statistically significantly decreased (p= 0.001). In Group E, the visual analogue scale scores at 30 minutes, 1st, 2nd, 4th, 8th, 12th hour, and 16th hour after postoperative extubation were observed to be significantly lower than those of Group C (p <0.05).ConclusionPreemptive ESP block application in CABG surgery patients reduced postoperative tramadol demand, intraoperative fentanyl demand, and postoperative pain scores.Key WordsCoronary artery bypass surgery, Erector spinae plane block, Acute postoperative pain.

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