6533b827fe1ef96bd128721d

RESEARCH PRODUCT

Abolished laser-evoked potentials and normal blink reflex in midlateral medullary infarction.

S. FitzekJürgen MarxRolf-detlef TreedeUlf BaumgärtnerPeter P. UrbanH. C. HopfC. HansenClemens Fitzek

subject

AdultMalePain ThresholdSpinothalamic tractHot TemperatureLaser-Evoked PotentialsSomatosensory systemMagneticsReference ValuesEvoked Potentials SomatosensoryPhysical StimulationmedicineTegmentumHumansCorneal reflexEvoked PotentialsAgedMedulla OblongataBlinkingbusiness.industryLasersAnatomyCerebral InfarctionMagnetic Resonance ImagingCold TemperatureElectrophysiologymedicine.anatomical_structureNeurologyAnesthesiaMedulla oblongataReflexFemaleNeurology (clinical)business

description

We investigated two patients presenting with the rare finding of almost isolated hemianalgesia with a sensory level on the contralateral side sparing the face. Clinical findings, electrophysiological studies (absent laser-evoked pain-related somatosensory potentials, normal electrically evoked somatosensory potentials, magnetically evoked potentials, and blink reflexes), and magnetic resonance imaging showed the ventrolateral medullar tegmentum containing the spinothalamic tract to be affected by lacunar infarction. The blink reflex R2 component was unimpaired in both patients.

yearjournalcountryeditionlanguage
1999-07-10Journal of neurology
10.1007/s004150050361https://pubmed.ncbi.nlm.nih.gov/10399864