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Chinese Journal of Neurotraumatic Surgery(Electronic Edition) ›› 2021, Vol. 07 ›› Issue (02): 75-81. doi: 10.3877/cma.j.issn.2095-9141.2021.02.003

Special Issue:

• Traumatic Brain Injurys • Previous Articles     Next Articles

Prognostic predictors of early outcome and discharge mortality in traumatic brain injury patients without fixed dilated pupil that underwent decompressive craniectomy treatment

Runfa Tian1, Jinqian Dong1, Weiming Liu1, Shenghua Lu1, Mengshi Yang1, Bin Zhang1, Fei Gao1, Yuan Zhuang1, Qianqian Ge1, Xiaojian Xu1, Fei Niu1, Baiyun Liu1,()   

  1. 1. Beijing Key Laboratory of Central Nervous System Injury and Department of Neurosurgery, Beijing Neurosurgical Institute and Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
  • Received:2021-01-25 Online:2021-04-15 Published:2021-05-24
  • Contact: Baiyun Liu

Abstract:

Objective

To determine independent predictors and develop multivariate logistic regression equations to predict early outcome and discharge mortality in traumatic brain injury (TBI) patients without fixed dilated pupil that undergoing decompressive craniectomy (DC) treatment.

Methods

All 167 TBI patients without fixed dilated pupil that undergoing DC treatment in Neurotrauma ward of Department of Neurosurgery, Beijing Tiantan Hospital Affiliated to Capital Medical University was retrospectively evaluated between July 2011 and June 2017, and a total of 13 different variables were evaluated. The independent predictors, prognostic regression scoring equations and receiver-operating characteristic (ROC) curves were then developed to predict early outcome and discharge mortality after TBI by univariate and multiple logistic regression analysis.

Results

For TBI patients without fixed dilated pupil that underwent DC treatment, younger age (P=0.047), higher admission GCS score (P=0.001) and without tracheotomy (P<0.001) were associated with favorable early outcome, while younger age (P=0.031), sensitive to light reflection (P=0.008) and unilateral craniectomy (P=0.011) were associated with lower discharge mortality. The sensitivity and specificity of ROC curve in predicting early prognosis were 86.7% and 48.9% respectively; The sensitivity and specificity were 81.3% and 48.7% respectively in predicting the lower discharge mortality after TBI.

Conclusion

Younger age, higher admission GCS and without tracheotomy can be used as independent predictors in assessing the favorable early outcome, while younger age, sensitive to light reflection and unilateral craniectomy were associated with lower discharge mortality for TBI patients without fixed dilated pupil that underwent DC treatment, and the derived multivariate logistic equations are also clinically useful for predicting early outcome and discharge mortality in daily practice.

Key words: Traumatic brain injury, Decompressive craniectomy, Early outcome, Discharge mortality

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