کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5593680 1571140 2017 30 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The first sign of loss of consciousness
ترجمه فارسی عنوان
اولین علامت از دست دادن هوشیاری
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی فیزیولوژی
چکیده انگلیسی
The first clinically observable sign of an unconsciousness episode (UNCE) serves as the temporal sequence (kinetics) onset point for neurological events occurring during the loss of consciousness, unconsciousness and recovery of consciousness phases of the UNCE. The initial neurologic signs of 212 individuals exposed to gradual (N = 114) and rapid (N = 98) onset + Gz acceleration stress, inducing the ischemic LOC phase in 83.3 ± 18.6 s and 8.89 ± 1.52 s; p < 0.001 respectively, were determined. The duration of the unconscious phase (considered absolute incapacitation) was 10.42 ± 5.3 s and 9.36 ± 3.99 s; p > 0.1 for gradual and rapid onset + Gz-stress, respectively. Cerebral autoregulation may play a role in determination of ischemic UNCE induction and recovery. Five signs: loss of muscle control, eyelid closure, eye fixation, upward eye deviation, and muscular twitching occurred at LOC phase onset. The most frequent initial sign of LOC phase onset was loss of muscle control (84% of the episodes), followed by eye fixation (8.5%), and upward eye deviation (6.1%). Signs play a key role in differential diagnosis of syncopal, epileptic, psychogenic and other causes of UNCEs. Sign kinetics may provide insight into localization of the essential components and networks within the cephalic nervous system associated with UNCEs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physiology & Behavior - Volume 179, 1 October 2017, Pages 494-503
نویسندگان
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