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  • Early Decompression Predicts Improved Neurologic Outcomes in Spinal Epidural Abscess

    Final Number:
    1417

    Authors:
    Vincent J Alentado MD; Leonard Keller BS; Joseph E Tanenbaum BA; Bryan S Lee MD; Amy S. Nowacki PhD; Thomas Mroz; Edward C. Benzel MD; Michael P. Steinmetz MD

    Study Design:
    Other

    Subject Category:

    Meeting: Congress of Neurological Surgeons 2017 Annual Meeting

    Introduction: Surgical decompression offers many advantages for patients who present with symptomatic spinal epidural abscess (SEA). However, the optimal timeframe for surgical intervention is not well defined in the literature.

    Methods: A retrospective analysis of all patients that presented to a single tertiary care institution with symptomatic SEA treated with surgical decompression between 2010 and 2015 was performed. Preoperative, postoperative pre-discharge, and 6-month postoperative ASIA scores were calculated for all patients. Fisher's exact and Wilcoxon rank-sum tests were used to determine predictors of ASIA grade improvement postoperatively using preoperative patient-specific factors.

    Results: A total of 152 patients fit inclusion criteria. The mean age of all patients was 58 years old with 81% being Caucasian and 61% male. 8% of patients required reoperation for persistent abscess. 49% of patients maintained ASIA E scores or had a 1 or higher ASIA grade improvement, 45% of patients remained at their preoperative ASIA grade and 6% of patients had worsening of preoperative ASIA grade. Worse preoperative ASIA score (p<0.001) and longer duration of preoperative paresis (p<0.001) was associated with an increased risk of not obtaining improvement in ASIA grade. Numerous other patient-specific factors including preoperative age, BMI, CRP, ESR, WBC, diabetes status, and degree of thecal sac compression were not predictive of postoperative outcome.

    Conclusions: For patients suffering from symptomatic SEA, early surgical decompression predicts improved neurologic outcomes postoperatively. Other commonly used markers for extent of abscess burden do not have similar predictive value.

    Patient Care: By educating practitioners and patients on the importance of early surgical decompression for SEA, patients may have improved neurologic and functional outcomes postoperatively.

    Learning Objectives: By the conclusion of this session, participants should be able to: 1) Describe the importance of early surgical intervention in patients with SEA, 2) Discuss, in small groups, patient outcomes after surgical decompression for SEA, 3) Identify an effective treatment protocol for SEA

    References:

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