• Anwar Ul Huda, Mohammad Yasir, Mohammad Faheem Shaikh, Mohammad Zulqarnain Mughal, and Asim Arif.
• Department of Anaesthesia, Security Forces Hospital, Riyadh, Saudi Arabia.
• J Coll Physicians Surg Pak. 2024 Jun 1; 34 (6): 636640636-640.

ObjectiveTo investigate the efficacy of adding 0.5 micrograms/kg of dexmedetomidine to 0.2% ropivacaine in erector spinae plane block in terms of 24-hour opioid consumption after lumbar spine surgeries.Study DesignA randomised controlled trial. Place and Duration of the Study: The Security Forces Hospital, Riyadh, Saudi Arabia, from 30th November 2022 to 30th March 2023.MethodologyPatients aged between 18-70 years, ASA 1-3 who were booked to undergo lumbar spine surgeries under general anaesthesia were inducted. Patients in the intervention group received erector spinae plane block (ESPB). Exclusion criteria were patient refusal, inability to give consent, patients with contraindications to regional anaesthesia, known allergy to study medications, inability to use patient-controlled analgesia (PCA), psychiatric disorders or patients using any psychiatric medications. The primary outcome measure of the study was 24-hour opioid consumption.ResultsThe numeric rating scale (NRS) pain scores were significantly decreased in the ESPB-D group at 30 minutes (p = 0.042), at 1 hour (p = 0.018), at 2 hours (p = 0.044), at 12 hours (p = 0.039), at 18 hours (p = 0.011), and at 24 hours (p = 0.020). Intraoperative use of remifentanil was also significantly lower in the ESPB-D group (p <0.01). ESPB using dexmedetomidine also reduced opioid consumption over a period of 24 hours (p <0.01). Median patient satisfaction score and median ease of mobility were also significantly better in the ESPB-D group.ConclusionAddition of dexmedetomidine in erector spinae plane block reduced pain scores and intraoperative and postoperative opioid consumption after lumbar spine surgery.Key WordsDexmedetomidine, Erector spinae plane block, Lumbar spine surgery, Opioid consumption, Pain control.

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