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Somatosensory evoked potentials following trigeminal nerve stimulation in trigeminal neuralgia
Author(s) -
Stöhr M.,
Petruch F.,
Scheglmann K.
Publication year - 1981
Publication title -
annals of neurology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 4.764
H-Index - 296
eISSN - 1531-8249
pISSN - 0364-5134
DOI - 10.1002/ana.410090112
Subject(s) - trigeminal neuralgia , trigeminal nerve , medicine , microvascular decompression , somatosensory evoked potential , stimulation , somatosensory system , latency (audio) , neuralgia , anesthesia , posterior fossa , anatomy , neuropathic pain , psychiatry , electrical engineering , engineering
The examination of somatosensory evoked potentials following trigeminal nerve stimulation in 20 subjects with idiopathic trigeminal neuralgia revealed a pathological increase in latency of the first positive component on the involved siEN in 7 (41%) of the 17 patients without anteceENnt surgical treatment. The mean difference in latency between the two siENs was 1.3 msec (2p ≥ 0.005). These results are indicative of microtraumatization of the trigeminal nerve in the posterior fossa by blood vessels, for example, leading to local ENmyelinization. The method seems to be of diagnostic value in selecting patients for nerve ENcompression by posterior fossa operations.