• Neurosurgery · Oct 2022

    Cardiac Complications After 3-Column Osteotomy for Adult Spinal Deformity Patients With Formal Cardiac Clearance: Identifying Key Risk Factors and Threshold Cutoffs Via Recursive Partitioning Analysis.

    • Darryl Lau, Alexander F Haddad, Rushikesh S Joshi, Vedat Deviren, and Christopher P Ames.
    • Department of Neurosurgery, New York University, New York, New York, USA.
    • Neurosurgery. 2022 Oct 1; 91 (4): 562569562-569.

    BackgroundDespite formal cardiac clearance, a subset of 3-column osteotomy (3CO) patients still experience cardiac complications (CCs).ObjectiveTo define the incidence and risk factors for CC in 3CO patients who had formal cardiac clearance and assess the utility of the Revised Cardiac Risk Index (RCRI) and preoperative metabolic equivalent (MET) functional ability in predicting perioperative CC.MethodsPatients with adult spinal deformity (ASD) who underwent 3CO deformity correction from 2006 to 2019 were retrospectively reviewed. Multivariate and recursive partitioning analyses were performed to assess risk factors.ResultsA total of 390 patients with ASD were included. The mean age was 64.6 years, and 60.3% were female. The CC rate was 9.7%. Patients with CCs were older ( P < .001), had an increased history of heart disease ( P = .001), and higher blood loss ( P = .045). RCRI score ( P = .646) or MET functional ability ( P = .493) were not associated with CC. On multivariate analysis, age ( P < .001), blood loss ( P = .008), and prior spinal fusion ( P = .025) were independent risk factors for CC. Patients age older than 81 years had a significantly higher CC rate than those younger than 81 years. In patients age 81 years and younger, if blood loss was >3900 mL, CC rate was significantly higher. Among patients age 81 years and younger and with >3900 mL blood loss, CC rate is significantly higher in patients with ejection fraction (EF) ≤54.5%.ConclusionRCRI and MET functional ability are limited risk assessment tools in ASD 3CO patients with formal cardiac clearance. Patients older than 81 years are at high risk for CC. In younger patients, cardiac EF and blood loss are significant components to risk stratify for CC.Copyright © Congress of Neurological Surgeons 2022. All rights reserved.

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