• World Neurosurg · Sep 2024

    The Geriatric Nutritional Risk Index Is an Independent Predictor for Adverse Outcomes After Anterior Cervical Discectomy and Fusion.

    • Juhayer S Alam, Shuma Easmin, Jad Bou Monsef, and Carl Paulino.
    • Department of Orthopedic Surgery and Rehabilitation Medicine, State University of New York, Downstate Health Sciences University, Brooklyn, NY. Electronic address: juhayer5@gmail.com.
    • World Neurosurg. 2024 Sep 1; 189: e260e266e260-e266.

    BackgroundMalnutrition frequently is associated with increased complications and worse outcomes after surgery. The purpose of this study was to determine whether malnutrition status determined using the Geriatric Nutritional Risk Index (GNRI) can serve as an independent risk factor for complications in patients undergoing anterior cervical discectomy and fusion (ACDF).MethodsThe American College of Surgeons National Surgical Quality Improvement Program database was queried from 2011 to 2016 for patients age ≥65 years who underwent ACDF. Patients were categorized into 3 groups based on the GNRI: >98, normal nutritional status; 92-98, moderately malnourished; and <92, severely malnourished. Multivariate logistic regression models adjusted for covariates of demographics, comorbidities, and operative metrics were used to evaluate GNRI as an independent risk factor for postoperative outcomes.ResultsA total of 3148 patients who underwent ACDF were analyzed, of whom 78.9% had normal nutrition, 16.1% were moderately malnourished, and 5.0% patients were severely malnourished. On multivariate analysis, moderate and severe malnutrition were found to be independent risk factors for any complication, pulmonary complications, pneumonia, unplanned intubation, and hospital length of stay >6 days (P < 0.05 for all). In addition, moderate malnutrition was a risk factor for failure to wean from ventilation for >48 hours and 30-day readmission. Severe malnutrition was an independent risk factor for septic shock and nonhome discharge.ConclusionsIn elderly patients after ACDF, malnutrition determined using GNRI is an independent risk factor for 30-day complications, readmissions, prolonged hospital length of stay, and nonhome discharge.Published by Elsevier Inc.

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