• Hironobu Ueshima, Mayumi Inagaki, Tomoaki Toyone, and Hiroshi Otake.
• Department of Anesthesiology, Showa University Hospital, Tokyo, Japan.
• Asian Spine J. 2019 Apr 1; 13 (2): 254-257.

Study DesignA retrospective study.PurposeThe first research on the erector spinae plane (ESP) block was published in 2016. To our knowledge, no cohort studies or randomized controlled trials of the ESP block were performed in 2016 and 2017.Overview Of LiteratureThis study retrospectively investigated the efficacy of the ESP block in pain management after lumbar spinal surgery.MethodsPatients who underwent lumbar spinal surgery in 2017 were enrolled in the study. Those who underwent secondary surgery with local anesthesia other than the ESP block were excluded. The primary outcome was the Numerical Rating Scale (NRS) pain score at various time points until the morning of postoperative day 2. The secondary outcomes were the amount of intravenous fentanyl administered during the first 24 hours following the surgery and the number of patients with complaints of complications such as nausea and vomiting until the morning of postoperative day 2.ResultsThe data of 41 patients undergoing lumbar spinal surgery were retrospectively analyzed. Of these, 23 received only general anesthesia (G group), whereas the other 18 patients received the ESP block in addition to general anesthesia (E group). The NRS pain scores and the amount of fentanyl administered were lower in the G group than in the E group at all measured time points (all data were less than p<0.05). There was no significant difference in the incidence of complications between the two groups (p=0.11).ConclusionsThe ESP block provides effective postoperative analgesic effect for 24 hours in patients undergoing lumbar spinal surgery.

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