Obesity and traumatic brain injury

Carlos V R Brown, Peter Rhee, Angela L. Neville, Burapat Sangthong, Ali Salim, Demetrios Demetriades

Research output: Contribution to journalArticle

57 Citations (Scopus)

Abstract

BACKGROUND: As obesity continues to run rampant in our society, an understanding of its adverse effect after traumatic injury is starting to unfold. We hypothesize that obesity negatively impacts head-injured patients, and the current study intends to compare obese and lean patients with traumatic brain injury (TBI). METHODS: This is a retrospective study evaluating all blunt trauma patients with TBI admitted to the intensive care unit (ICU) in our urban, Level I trauma center from 1998 until 2003. Body mass index (BMI) was used to categorize patients as either lean (BMI <30 kg/m) or obese (BMI <30 kg/m). Admission demographics, type and severity of head injury, and associated injuries were recorded for each patient. Primary outcome was mortality, while secondary outcomes were cause of death, complications, and for survivors, days of mechanical ventilation, ICU length of stay, and hospital length of stay. Obese and lean patients were compared using univariate analysis and multivariate stepwise logistic regression. In addition, a subgroup analysis of patients with isolated head injury was performed. RESULTS: There were 690 patients with TBI admitted to the ICU during the study period, with 129 (19%) obese patients (BMI = 34 ± 5 kg/m) and 561 (81%) lean patients (BMI = 24 ± 4 kg/m). The two groups were similar with the exceptions that obese patients were older (46 ± 20 years versus 39 ± years, p < 0.01), had lower admission systolic blood pressure (125 ± 38 mm Hg versus 134 ± 30 mm Hg, p = 0.01), and more often sustained an associated chest injury (46% versus 35%, p = 0.03). Obese patients with TBI had a trend toward more complications (34% versus 28%, p = 0.17) and a higher mortality (36% versus 25%, p = 0.02). However, stepwise logistic regression failed to identify obesity as an independent risk factor for either morbidity or mortality. In addition, obese patients with isolated head injury had no increase in complications or death. CONCLUSIONS: Although obese patients suffer more complications and higher mortality than lean patients after TBI, this adverse effect seems to be due to age, lower admission blood pressure, and more associated chest injury, rather than a direct result of the obese state.

Original languageEnglish (US)
Pages (from-to)572-576
Number of pages5
JournalJournal of Trauma - Injury, Infection and Critical Care
Volume61
Issue number3
DOIs
StatePublished - Sep 2006

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Obesity
Body Mass Index
Craniocerebral Trauma
Intensive Care Units
Length of Stay
Thoracic Injuries
Mortality
Traumatic Brain Injury
Blood Pressure
Wounds and Injuries
Logistic Models
Trauma Centers
Artificial Respiration
Survivors
Cause of Death
Multivariate Analysis
Retrospective Studies
Head
Demography
Morbidity

Keywords

  • Blunt trauma
  • Head injury
  • Obesity
  • Traumatic brain injury

ASJC Scopus subject areas

  • Surgery

Cite this

Brown, C. V. R., Rhee, P., Neville, A. L., Sangthong, B., Salim, A., & Demetriades, D. (2006). Obesity and traumatic brain injury. Journal of Trauma - Injury, Infection and Critical Care, 61(3), 572-576. https://doi.org/10.1097/01.ta.0000200842.19740.38

Obesity and traumatic brain injury. / Brown, Carlos V R; Rhee, Peter; Neville, Angela L.; Sangthong, Burapat; Salim, Ali; Demetriades, Demetrios.

In: Journal of Trauma - Injury, Infection and Critical Care, Vol. 61, No. 3, 09.2006, p. 572-576.

Research output: Contribution to journalArticle

Brown, CVR, Rhee, P, Neville, AL, Sangthong, B, Salim, A & Demetriades, D 2006, 'Obesity and traumatic brain injury', Journal of Trauma - Injury, Infection and Critical Care, vol. 61, no. 3, pp. 572-576. https://doi.org/10.1097/01.ta.0000200842.19740.38
Brown CVR, Rhee P, Neville AL, Sangthong B, Salim A, Demetriades D. Obesity and traumatic brain injury. Journal of Trauma - Injury, Infection and Critical Care. 2006 Sep;61(3):572-576. https://doi.org/10.1097/01.ta.0000200842.19740.38
Brown, Carlos V R ; Rhee, Peter ; Neville, Angela L. ; Sangthong, Burapat ; Salim, Ali ; Demetriades, Demetrios. / Obesity and traumatic brain injury. In: Journal of Trauma - Injury, Infection and Critical Care. 2006 ; Vol. 61, No. 3. pp. 572-576.
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