کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6262984 1613819 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Research ReportWhite matter diffusion abnormalities in patients with psychogenic non-epileptic seizures
ترجمه فارسی عنوان
گزارش تحقیق ناهنجاریهای انتشار ماده در بیماران مبتلا به تشنج ناخوشایند روانپزشکی
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب (عمومی)
چکیده انگلیسی


- Psychogenic non-epileptic seizures may be associated with structural abnormalities.
- This is the first work to investigate white matter integrity in PNES patients.
- PNES patients show widespread increased FA in the left hemisphere.
- Increased FA values are found in the areas involved in emotion and motor system.
- Decreased FA values are not observed in patients with PNES.

The purpose of this study was to conduct a preliminary investigation of the white matter characteristics in patients with psychogenic non-epileptic seizures (PNES). Diffusion Tensor Imaging (DTI) data were collected at 3 T in 16 patients with PNES and 16 age- and sex-matched healthy controls (HC). All patients with PNES had their diagnosis confirmed via video/EEG monitoring; HCs had no comorbid neurological or psychiatric conditions. DTI indices including fractional anisotropy (FA), and mean diffusivity (MD) were calculated and compared between patients with PNES and HCs using Tract-Based Spatial Statistics (TBSS). Significantly higher FA values were observed in patients with PNES in the left corona radiata, left internal and external capsules, left superior temporal gyrus, as well as left uncinate fasciculus (UF) (P<0.05; corrected for multiple comparisons). There was no significant change in other indices between patients with PNES and HCs. These findings suggest that patients with PNES have significantly altered white matter structural connectivity when compared to age- and sex-matched HCs. These abnormalities are present in left hemispheric regions associated with emotion regulation and motor pathways. While the relationship between the pathophysiology of PNES and these abnormalities is not entirely clear, this work provides an initial basis to guide future prospective studies.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Brain Research - Volume 1620, 16 September 2015, Pages 169-176
نویسندگان
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