5. Evaluation of the prolonged postoperative analgesic effect of dexamethasone combined with ropivacaine in erector spinae planal block for lumbar spine surgery

Duong Nu Diep Anh, Vu Hoang Phuong, Tong Thi Hong Nhung

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Abstract

A randomized controlled clinical trial was conducted from October 2022 to September 2023 at Hanoi Medical University Hospital to investigate the prolonged postoperative analgesic effect of dexamethasone combined with ropivacaine in erector spinal plane block for lumbar spine surgery. 70 patients undergoing lumbar spine surgery were randomly assigned to receive either ropivacaine with dexamethasone or ropivacaine alone for erector spinal plane block. Result: The duration of postoperative analgesia was significantly longer in the dexamethasone group compared to the ropivacaine-only group (381.42 ± 32.65 minutes vs 203.17 ± 27.34 minutes, p < 0.05). Morphin consumption was significantly lower in the dexamethasone group during the first 24 hours after surgery (8.74 ± 3.56 mg vs 16.32 ± 6.54 mg, p < 0.05). VAS pain scores at rest and on movement were also significantly lower in the dexamethasone group at 4, 6, 8, and 12 hours post-surgery (p < 0.05). Conclusion: Dexamethasone combined with ropivacaine in erector spinal plane block provides prolonged postoperative analgesia and reduces morphine consumption in patients undergoing lumbar spine surgery.

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References

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