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Changes of nitric oxide and its relationship with clinical features intracranial pressure and outcome in acute head injury

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Summary

To investigate the content and dynamics of nitric oxide (-NO) in the cerebrospinal fluid (CSF) of patients with acute head injury and to clarify the relationship of NO with clinical features and intracranial pressure (ICP) as well as outcomes, 38 adults with acute head injury were studied. Glasgow Coma Scale (GCS) obtained at admission and Glasgow Outcome Scale (GOS) 3 months after injury was assessed.ICP was surveyed via intraventricular catheter and lumbar puncture and CSF samples were obtained simultaneously. NO was determined with Griess reagents. Results showed that NO peak content in the head injury group was significantly higher than that of the control group. During dynamic research, no peak content of mildly injured cases and severely injured ones appeared in different time windows respectively. The peak value of NO was distinctly higher in the severe group than in the mild group. NO peak value of the raised ICP group was remarkably higher than that of the normal ICP group. The peak value of NO was considerately higher in the poor outcome group than in the good outcome group. When the content of NO was, over 6. 5 μmol/L., the rate of poor outcome was increased. There existed a correlation between NO and GCS, ICP and GOS. It is concluded that the content of NO was increased in patients with acute head injury and the changes of NO had different time windows in severely injured patients and mildly injured ones. The more sever the injury, the higher the NO content; and the more serious the secondary brain injury and brain edema, the worse the outcomes. When NO is combined with GCS, GOS and ICP, it increases the accuracy of judgement to the degree of head injury and outcome.

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Authors and Affiliations

  1. Department of Neurosurgery, Tongji Hospital, Tongji Medical University, 430030, Wuhan

    Zhou Dong M.D., Ph.D. & Li Ling

  2. Institute of Neurology, Lanzhou Medical College, 730030, Lanzhou

    Qiu Mingde & Guan Yujuan

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  1. Zhou Dong M.D., Ph.D.
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  2. Qiu Mingde
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  3. Guan Yujuan
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  4. Li Ling
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Dong, Z., Mingde, Q., Yujuan, G. et al. Changes of nitric oxide and its relationship with clinical features intracranial pressure and outcome in acute head injury. Current Medical Science 20, 148–150 (2000). https://doi.org/10.1007/BF02887058

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  • DOI: https://doi.org/10.1007/BF02887058

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