Residual vestibular function after vestibular schwannoma surgery

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21460%2F20%3A00357187" target="_blank" >RIV/68407700:21460/20:00357187 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61988987:17110/19:A21024OU RIV/61988987:17110/20:A21028CI RIV/00216208:11110/20:10410905 RIV/00216208:11130/20:10410905 RIV/00064203:_____/20:10410905

Výsledek na webu

<a href="https://doi.org/10.1016/j.neuchi.2019.10.008" target="_blank" >https://doi.org/10.1016/j.neuchi.2019.10.008</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.neuchi.2019.10.008" target="_blank" >10.1016/j.neuchi.2019.10.008</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Residual vestibular function after vestibular schwannoma surgery

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Residual vestibular function after vestibular schwannoma surgery

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

30210 - Clinical neurology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Neurochirurgie

ISSN

0028-3770

e-ISSN

1773-0619

Svazek periodika

66

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

5

Strana od-do

80-84

Kód UT WoS článku

000531065500002

EID výsledku v databázi Scopus

2-s2.0-85081332225