VESTIBULAR FUNCTION TESTS
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Acta oto-laryngologica, ISSN 0365-5237 suppl. 179, 1963
139 s. : il., grafy ; 26 cm
OBJECTIVES: This study aimed to assess vestibular function in 39 patients who underwent neurectomy for vestibular schwannoma. METHOD: Semicircular canal reactivity was measured by video head-impulse test using high-frequency passive head acceleration. Response gain was calculated as a ratio between the areas under the eye-velocity curve and the head-velocity curve. STATISTICAL ANALYSIS: Student t-test was used for to compare quantitative variables. ANOVA was used to test inter-group differences in categoric variables. RESULTS: In all cases, surgery-side gain on head impulse test was low, with increased gain asymmetry. A subgroup of 7 patients (18%) showed relatively high gain in vestibulo-ocular reflex on the surgery side. Caloric reaction was absent in all cases. These findings indicate that residual vestibular function can be conserved following vestibular schwannoma extirpation. CONCLUSION: Cases with moderate vestibulo-ocular reflex gain were a subgroup with partial conservation of vestibular nerve fibers. Whether this is a predictor of better functional prognosis remains to be elucidated. Higher gain correlated with less extensive surgery and sparing of the inferior vestibular nerve. Low gain correlated with complete vestibular neurectomy. This information may guide rehabilitation strategy following surgery.
- MeSH
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- nervová vlákna MeSH
- neurochirurgické výkony metody MeSH
- pooperační komplikace patofyziologie MeSH
- pooperační období MeSH
- prognóza MeSH
- pulsní rotační test MeSH
- senioři MeSH
- vestibulární aparát patofyziologie MeSH
- vestibulární funkční testy MeSH
- vestibulární schwannom patofyziologie chirurgie MeSH
- vestibulookulární reflex MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
Acta oto-laryngologica, ISSN 0365-5237 suppl. 192, 1964
206 s. : il., tab., grafy ; 26 cm
- MeSH
- vestibulární aparát MeSH
- vestibulární funkční testy MeSH
- vestibulární nemoci MeSH
- významné osobnosti MeSH
- Publikační typ
- kongresy MeSH
- Konspekt
- Patologie. Klinická medicína
- NLK Obory
- otorinolaryngologie
Acta oto-laryngologica ; Supplement. 519
293 s. : obr., tab., grafy ; 28 cm
- MeSH
- lidé MeSH
- vestibulární aparát fyziologie MeSH
- vestibulární funkční testy MeSH
- Check Tag
- lidé MeSH
OBJECTIVE: Vestibular schwannoma surgery leads to acute unilateral vestibular loss. In some patients, however, the process of post-operatively initiated central compensation proceeds more rapidly than in others. This study aimed to evaluate post-operative vestibular function and correlate it with morphological findings of MRI scans. METHODS: The study included 29 patients who underwent surgery for vestibular schwannoma. Vestibular function was analysed post-operatively by video head impulse test (vHIT). Subjective symptoms were evaluated using validated questionnaires. All patients underwent MRI 3 months post-operatively, and the presence of the facial and vestibulocochlear nerves in the internal auditory canal was assessed. RESULTS: The vestibulo-ocular reflex gain measured by the vHIT correlated positively with audiological findings. Subjective perception of vestibular disorder did not correlate with objectively measured vestibular impairment or with MRI findings. CONCLUSIONS: After the resection of vestibular schwannoma, some patients may still have preserved vestibular function as measured by vHIT. The preserved function does not correlate with subjective symptoms. Patients with partially deteriorated vestibular function showed lower sensitivity to combined stimuli.
- MeSH
- lidé MeSH
- pulsní rotační test MeSH
- vestibulární aparát * MeSH
- vestibulární nemoci * MeSH
- vestibulární schwannom * MeSH
- vestibulookulární reflex fyziologie MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- MeSH
- lidé MeSH
- posturální rovnováha fyziologie MeSH
- terapie cvičením metody MeSH
- vestibulární funkční testy MeSH
- vestibulární nemoci patofyziologie rehabilitace MeSH
- závrať patofyziologie rehabilitace MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- dopisy MeSH
- práce podpořená grantem MeSH
- Geografické názvy
- Evropa MeSH
Advances in oto-rhino-laryngology, ISSN 0065-3071 vol. 42, no. 1, 1988
xi, 312 s. : il., tab. ; 25 cm
- MeSH
- kongresy jako téma MeSH
- vestibulární aparát fyziologie MeSH
- vestibulární funkční testy MeSH
- vestibulární nemoci diagnóza MeSH
- Publikační typ
- kongresy MeSH
- sborníky MeSH
- Konspekt
- Patologie. Klinická medicína
- NLK Obory
- otorinolaryngologie
sv.
- MeSH
- vestibulární aparát MeSH
- vestibulární funkční testy MeSH
- vestibulární nemoci MeSH
- Publikační typ
- periodika MeSH
- Konspekt
- Patologie. Klinická medicína
- NLK Obory
- otorinolaryngologie
