• World Neurosurg · May 2024

    Spinal anesthesia reduces perioperative polypharmacy and opioid burden in patients over 65 who undergo Transforaminal Lumbar Interbody Fusion.

    • Helen Karimi, Jainith Patel, Michelle Olmos, Matthew Kanter, Nicholas S Hernandez, Rachel E Silver, Penny Liu, Ron I Riesenburger, and James Kryzanski.
    • Department of Neurosurgery, Tufts Medical Center, Tufts University School of Medicine, Boston, Massachusetts, USA. Electronic address: helen.karimi@tufts.edu.
    • World Neurosurg. 2024 May 1; 185: e758e766e758-e766.

    BackgroundPolypharmacy and opioid administration are thought to increase the risk of postoperative cognitive dysfunction and delirium in elderly patients. Spinal anesthesia (SA) holds potential to reduce perioperative polypharmacy in spine surgery. As more geriatric patients undergo spine surgery, understanding how SA can reduce polypharmacy and opioid administration is warranted. We aim to compare the perioperative polypharmacy and dose of administered opioids in patients ≥65 years who undergo transforaminal lumbar interbody fusion (TLIF) under SA versus general anesthesia (GA).MethodsA retrospective analysis of 200 patients receiving a single-surgeon TLIF procedure at a single academic center (2014-2021) was performed. Patients underwent the procedure with SA (n = 120) or GA (n = 80). Demographic, procedural, and medication data were extracted from the medical record. Opioid consumption was quantified as morphine milligram equivalents (MME). Statistical analyses included χ2 or Student's t-test.ResultsPatients receiving SA were administered 7.45 medications on average versus 12.7 for GA patients (P < 0.001). Average perioperative opioid consumption was 5.17 MME and 20.2 MME in SA and GA patients, respectively (P < 0.001). The number of patients receiving antiemetics and opioids remained comparable postoperatively, with a mean of 32.2 MME in the GA group versus 27.5 MME in the SA group (P = 0.14). Antiemetics were administered less often as a prophylactic in the SA group (32%) versus 86% in the GA group (P < 0.001).ConclusionsSA reduces perioperative polypharmacy in patients ≥65 years undergoing TLIF procedures. Further research is necessary to determine if this reduction correlates to a decrease the incidence of postoperative cognitive dysfunction and delirium.Copyright © 2024 Elsevier Inc. All rights reserved.

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