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Title: Postoperative hearing recovery in a case of delayed hearing loss after acoustic neurinoma removal. Author: Strauss C, Fahlbusch R, Berg M. Journal: Zentralbl Neurochir; 1992; 53(3):152-5. PubMed ID: 1384253. Abstract: Delayed postoperative hearing loss after acoustic neurinoma removal is seldom observed. The presented case illustrates the phenomenon of delayed postoperative hearing loss which was observed 4 days after removal of a large acoustic neurinoma. Intraoperative brainstem auditory evoked potentials (BAEP) revealed a gradual loss of wave V with preservation of wave I. In animal experiments a dissociated loss of BAEP has been associated with impairment of microcirculation due to secondary edema. Vasoactive treatment was initiated and after 11 days a partial hearing recovery could be documented. Transient disturbance in microcirculation of vasa nervorum of the cochlear nerve is assumed to be responsible for postoperative hearing fluctuation.[Abstract] [Full Text] [Related] [New Search]