• Clin Interv Aging · Jan 2017

    Early postoperative delirium after hemiarthroplasty in elderly patients aged over 70 years with displaced femoral neck fracture.

    • Yi-Hwa Choi, Dae-Hwan Kim, Tae-Young Kim, Tae-Wan Lim, Seok-Woo Kim, and Je-Hyun Yoo.
    • Department of Anesthesiology and Pain Medicine, Hallym Sacred Heart Hospital, Hallym University College of Medicine.
    • Clin Interv Aging. 2017 Jan 1; 12: 1835-1842.

    PurposePostoperative delirium is a risk factor for worse outcome after hip fracture surgery in elderly patients. Postoperative delirium is associated with anesthesia, postoperative pain, and patient factors. We investigated the incidence, predictors, and prognostic implications of post-operative delirium after hemiarthroplasty (HA) in elderly patients with femoral neck fracture.Patients And MethodsA total of 356 consecutive patients aged >70 years who underwent HA for femoral neck fracture were enrolled. Diagnosis of delirium was made by a psychiatrist based on patient status and an objective scoring system. The patients were divided into 2 categories according to the HA onset time (immediate [≤24 h after surgery] vs delayed delirium [>24 h after surgery]) and its incidence, predictors and mortality were evaluated.ResultsPostoperative delirium was diagnosed in 110 patients (30.9%) during hospitalization. Immediate and delayed delirium occurred in 59 (53.6%), and 51 (46.4%) patients, respectively. The independent predictors of immediate delirium included age (odds ratio [OR] 1.47, 95% CI 0.98-2.23, p=0.066), and general anesthesia (OR 2.25, 95% CI 1.17-4.43, p=0.015). The independent predictors of delayed delirium were parkinsonism (OR 5.75, 95% CI 1.66-19.96, p=0.006), intensive care unit stay (OR 1.85, 95% CI 0.97-3.56, p=0.064), and higher American Society of Anesthesiologists grade (OR 2.33, 95% CI 0.90-6.07, p=0.083). On Kaplan-Meier survival analysis, the 2-year survival rate was significantly lower in the immediate delirium group than those in the delayed and control groups (71.0% vs 83.6% vs 87.8%, respectively; p=0.031).ConclusionImmediate and delayed delirium after HA for femoral neck fracture had different predictors and immediate delirium was associated with worse prognosis.

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