OBJECTIVE: To evaluate vestibular function after unilateral acoustic neuroma surgery via a retrosigmoid approach. METHODS: Thirty-eight patients were tested using caloric irrigation, static posturography, and the Dizziness Handicap Inventory (DHI) before, and one week to nine months after surgery. RESULTS: Twenty-six patients were categorized as a response group and 12 as a no-response group on the basis of preoperative caloric irrigation findings. The posturographic parameters and DHI scores at one week after surgery showed significant deterioration in the response group, but not in the no-response group. However, they recovered to the preoperative baseline at 3 months after surgery. The posturographic parameters and DHI scores for older patients tended to be worse than those for younger patients at 6 and 9 months after surgery. CONCLUSION: Patients in whom caloric responses are retained preoperatively show a temporary disturbance of balance after removal of acoustic neuroma. Disequilibrium after surgery ameliorates to the preoperative baseline within three months due to vestibular compensation, regardless of preoperative vestibular function. It is possible that poorer vestibular compensation may facilitate incomplete recovery in older patients after surgery.
OBJECTIVE: To evaluate vestibular function after unilateral acoustic neuroma surgery via a retrosigmoid approach. METHODS: Thirty-eight patients were tested using caloric irrigation, static posturography, and the Dizziness Handicap Inventory (DHI) before, and one week to nine months after surgery. RESULTS: Twenty-six patients were categorized as a response group and 12 as a no-response group on the basis of preoperative caloric irrigation findings. The posturographic parameters and DHI scores at one week after surgery showed significant deterioration in the response group, but not in the no-response group. However, they recovered to the preoperative baseline at 3 months after surgery. The posturographic parameters and DHI scores for older patients tended to be worse than those for younger patients at 6 and 9 months after surgery. CONCLUSION:Patients in whom caloric responses are retained preoperatively show a temporary disturbance of balance after removal of acoustic neuroma. Disequilibrium after surgery ameliorates to the preoperative baseline within three months due to vestibular compensation, regardless of preoperative vestibular function. It is possible that poorer vestibular compensation may facilitate incomplete recovery in older patients after surgery.
Authors: Jan Betka; Eduard Zvěřina; Zuzana Balogová; Oliver Profant; Jiří Skřivan; Josef Kraus; Jiří Lisý; Josef Syka; Martin Chovanec Journal: Biomed Res Int Date: 2014-05-28 Impact factor: 3.411
Authors: Lien Van Laer; Ann Hallemans; Vincent Van Rompaey; Claudia De Valck; Paul Van de Heyning; Luc Vereeck Journal: Front Neurol Date: 2022-08-19 Impact factor: 4.086