Vestibulo-Ocular Reflex Stabilization after Vestibular Schwannoma Surgery: A Story Told by Saccades
| Autor: | Angel Muñoz-Herrera, Jorge Rey-Martinez, Santiago Santa Cruz-Ruiz, Angel Batuecas-Caletrio, Nicolas Perez-Fernandez, Gabriel Trinidad-Ruiz, Eusebi Matiño-Soler |
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| Rok vydání: | 2017 |
| Předmět: |
medicine.medical_specialty
genetic structures Schwannoma Audiology covert saccade overt saccade PR score 03 medical and health sciences 0302 clinical medicine vestibular schwannoma otorhinolaryngologic diseases medicine 030223 otorhinolaryngology Original Research vestibular compensation Paresis Vestibular system video head impulse test caloric Caloric theory Head impulse test medicine.disease Surgery Neurology Saccade Reflex sense organs Neurology (clinical) medicine.symptom Vestibulo–ocular reflex Psychology 030217 neurology & neurosurgery Neuroscience |
| Zdroj: | Frontiers in Neurology |
| ISSN: | 1664-2295 |
| Popis: | Objective To evaluate vestibular compensation via measurement of the vestibulo-ocular reflex (VOR) following vestibular schwannoma surgery and its relationship with changes in saccades strategy after surgery. Patients Thirty-six consecutive patients with vestibular schwannomas, without brainstem compression, underwent surgical resection. Patients were recruited from University Hospital of Salamanca, Spain. Methods We assessed the age, sex, tumor size, degree of canalicular weakness, and preoperative video head impulse test (gain and saccade organization measured with PR score). Gain and saccade organization were compared with postoperative values at discharge and also at 1, 3, and 6 months. PR scores are a measure of the scatter of refixation saccades. Results Patients with normal preoperative caloric function had higher PR scores (saccades were scattered) following surgery compared to patients with significant preoperative canal paresis (p 0.05), but a group of patients with very low VOR gain ( |
| Databáze: | OpenAIRE |
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