期刊
NEUROLOGICAL SCIENCES
卷 32, 期 3, 页码 401-410出版社
SPRINGER
DOI: 10.1007/s10072-011-0476-9
关键词
Quantitative sensory testing (QST); Laser-evoked potentials (LEP); Diagnostic assessment; Spinal lesion; Spinothalamic tract; Neuropathic pain
资金
- Deutsche Forschungsgemeinschaft [BI 579/1, 579/4, Tr236/13-4]
- Bundesministerium fur Bildung und Forschung [01EM0506]
- Kalkhof-Rose-Stiftung
- Arbeitsgemeinschaft fur Krebsbekampfung der Trager der gesetzlichen Kranken-und Rentenversicherung NRW
This study evaluates the additional use of laser-evoked potentials (LEP) and quantitative sensory testing (QST) in the sensory assessment of spinal lesions. Four consecutive patients with spinal lesions verified by MRI and clinical evidence for mild spinothalamic tract involvement were included. The electrophysiological workup [somatosensory evoked potentials (SEP) and LEP] was compared to QST. Electrophysiology and QST were reassessed after about 6 months. LEP detected impaired spinothalamic tract function in 7/8 examinations. QST pointed to spinothalamic tract lesions by loss of thermal function (3/8); most frequent positive sensory signs (3/8) were paradoxical heat sensations. LEP and QST results were concordant in 6/8 examinations. SEPs were abnormal in 2/8 examinations. Congruent results between SEP and both LEP and QST were obtained in 3/8 examinations. LEP detected more deficits than any single QST parameter or their combination but additional QST allows the detection of positive sensory signs. The diagnostic gain of SEP was limited.
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