eISSN: 2084-9885
ISSN: 1896-6764
Neuropsychiatria i Neuropsychologia/Neuropsychiatry and Neuropsychology
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SCImago Journal & Country Rank
3-4/2015
vol. 10
 
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abstract:
Original paper

Serum melatonin levels in patients with traumatic brain injury-induced coma

Wusi Qiu
,
Qizhou Jiang
,
Guoming Xiao

Neuropsychiatria i Neuropsychologia 2015; 10, 3–4: 91–94
Online publish date: 2016/02/05
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Introduction: Melatonin (MLT) is a known antioxidant. We present here the changes of serum melatonin levels in adult patients with traumatic brain injury (TBI)-induced coma.

Material and methods: Sixty-one adult patients with TBI-induced coma, assessed according to Glasgow Coma Scale (GCS) scores on admission, were divided into very severe injury, severe injury and moderate injury groups. Thirty-one adult healthy volunteers were selected as the control group. Blood samples were collected twice at day 1,

day 3 and day 7 after admission. The prognosis of these patients was evaluated 3 months after TBI.

Results: The serum MLT levels of each TBI group at each time point were significantly lower than those of the control group (p < 0.05). The MLT levels of very severe and severe TBI groups were significantly lower than those of the moderate TBI group (p < 0.05). The MLT level of the very severe group was significantly lower than that of the severe group (p < 0.05). The lower the serum MLT level, the more severe was the condition of TBI (by GCS scoring), and the lower were the Glasgow Outcome Scale (GOS) scores.

Conclusions: Lower serum MLT levels may indicate worse condition, and serum melatonin levels may correlate with the severity and prognosis of patients with TBI.
keywords:

melatonin, traumatic brain injury, coma, GOS, prognosis

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