Impaired Sacculocollic Reflex in Lateral Medullary Infarction

Impaired Sacculocollic Reflex in Lateral Medullary Infarction

OBJECTIVE The aim of this study was to determine saccular dysfunction by measuring cervical vestibular-evoked myogenic potentials (cVEMP) and to correlate abnormality of cVEMP with results of other vestibular function tests in lateral medullary infarction (LMI). METHODS We recorded cVEMP in 21 patients with LMI documented on MRI. cVEMP was induced by a short tone burst and was recorded in con...

Sacculocollic reflex arcs in cats.

Neuronal connections and pathways underlying sacculocollic reflexes were studied by intracellular recordings from neck extensor and flexor motoneurons in decerebrate cat. Bipolar electrodes were placed within the left saccular nerve, whereas other branches of the vestibular nerve were removed in the inner ear. To prevent spread of stimulus current to other branches of the vestibular nerve, the ...

Lateral and Medial Medullary Infarction

Background and Purpose—No large-scale study has ever compared the clinical and radiological features of lateral medullary infarction (LMI) and medial medullary infarction (MMI). The aim of this study was to investigate them through the use of cooperatively collected cases. Methods—Medical information on all patients from 1996 to 2000 with medullary infarction (MI) proven by brain MR images at 3...

Symptomatic Hyponatremia following Lateral Medullary Infarction: a case report Running title: Hyponatremia after Lateral Medullary Infarction

Lateral medullary infarction presenting contralateral palatal paresis.

Palatopharyngeal paresis has never been reported to be contralateral in the lateral medullary infarction (LMI). A 65-year-old lady with acute dorsolateral infarction in the left medulla presented mild hoarseness, mild dysphagia, mild gait ataxia along with marked hypalgesia and thermal anesthesia on the right limbs. To our surprise, palatal weakness was on the right side, instead of being on th...