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  • Impact of Anthropometric Indices on Outcome Following Traumatic Brain Injury

    Final Number:
    413

    Authors:
    Manju Dhandapani M.Sc., M.A; SS Dhandapani M.Ch.; M Agarwal; A Chutani; BS Sharma; A K Mahapatra

    Study Design:
    Other

    Subject Category:

    Meeting: Congress of Neurological Surgeons 2014 Annual Meeting

    Introduction: Nutritional demand in patients with TBI is increased due to hypermetabolic response. The present study was undertaken to assess anthropometric indices in patients for 21 days after TBI and their influence on neurological outcome.

    Methods: Patients in age group 20-60, admitted within 24 hours of TBI with GCS 4-8, with no serious systemic injury were prospectively studied for demographics, clinico-radiological features, laboratory parameters, mid arm circumference (MAC), mid arm muscle circumference (MAMC), triceps skin fold thickness (TSF), and their weekly changes till 21 days, in relation to other factors and neurological outcome at 3 months. SPSS was used for statistical analysis.

    Results: There were a total of 67 patients with weekly anthropometric measurements, showing significant fall at every week. The percentage fall at 3 weeks for MAC, MAMC and TSF were 14%, 10%, and 37% respectively. The percentage of fall in MAMC was the earliest, and was significantly greater in patients with surgical intervention, tracheostomy, prolonged fever, delayed enteral feeding, and greater caloric deficit. The percentage of fall in MAC was significantly greater in patients who had tracheostomy, prolonged fever, delayed enteral feeding, and greater caloric deficit. Unfavorable outcome was significantly more frequent in patients who had atleast 15% fall in MAC (85.7% Vs 41.9%, p=0.03), or 10% fall in MAMC (68.8% Vs 38.2%, p=0.04) at 2 weeks, compared to others. Fall in TSF had no significant association with outcome at three months. Other factors with significant impact on outcome were age and GCS. Patients with atleast 10% fall in MAMC had significantly lower values of 24 hour urine creatinine (p=0.04), confirming the validity of MAMC fall in detecting somatic protein depletion. In multivariate analysis, MAMC fall had significant independent association with unfavorable outcome.

    Conclusions: Bedside anthropometry is efficient in identifying patients with nutrition depletion with significant influence on outcome at 3 months.

    Patient Care: Anthropometric indices identify patients at increased risk for poor outcome, who can benefit from aggressive nutritional support. They are simple, inexpensive and can be done at bed side.

    Learning Objectives: By the conclusion of this session, participants should be able to: 1) Describe the importance of anthropometric nutritional assessment in patients with TBI, 2) Discuss the role of various anthropometric indices, 3) Identify the prognostic importance of anthropometric indices on outcome after TBI

    References: Dhandapani SS, Manju D, Agarwal M, et al. Mid arm muscle circumference monitoring in severe head injury. The Indian Journal of Neurotrauma 2006; 3: 107-11.

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