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The Journal of Nervous and Mental... Oct 1948
Topics: Cochlear Nerve; Humans; Neoplasms; Nervous System Neoplasms
PubMed: 18885340
DOI: 10.1097/00005053-194810840-00001 -
The Journal of Laryngology and Otology Jan 1962
Topics: Cochlear Nerve; Humans; Nystagmus, Pathologic; Nystagmus, Physiologic; Vestibular Function Tests
PubMed: 13879611
DOI: 10.1017/s0022215100058977 -
Journal of Neurophysiology May 2004
Topics: Acoustic Stimulation; Animals; Auditory Perception; Cochlear Nerve; Humans; Nerve Fibers; Noise
PubMed: 15069089
DOI: 10.1152/jn.01244.2003 -
Archives of Otolaryngology (Chicago,... Jun 1964
Topics: Cerebellar Neoplasms; Cochlea; Cochlear Nerve; Electric Stimulation; Electrophysiology; Ependymoma; Inferior Colliculi; Pitch Discrimination; Tectum Mesencephali
PubMed: 14135073
DOI: 10.1001/archotol.1964.00750030572003 -
Journal of Neurosurgery Dec 1962
Topics: Breast Neoplasms; Cochlear Nerve; Humans; Neoplasm Metastasis; Neoplasms; Neurilemmoma; Neuroma, Acoustic; Vestibulocochlear Nerve
PubMed: 14001721
DOI: 10.3171/jns.1962.19.12.1088 -
Journal of Neurophysiology Sep 1956
Topics: Cochlea; Cochlear Nerve; Ear, Inner; Humans
PubMed: 13367873
DOI: 10.1152/jn.1956.19.5.424 -
European Archives of... Apr 2005The aim of the experiment was to determine the effect of whole-body vibration on the inner ear. The investigations were carried out on 40 guinea pigs, subjected to...
The aim of the experiment was to determine the effect of whole-body vibration on the inner ear. The investigations were carried out on 40 guinea pigs, subjected to sinusoidal vibration (10 Hz/5 mm/1.4 g rms) for 1 to 6 months in a noiseless apparatus. Cochlear microphonic measurements were done with a phase-sensitive detection technique for the levels 70, 80 and 90 dB and the frequencies of 0.26, 0.5, 1 and 2 kHz from the apex of the cochlea and for 4 and 8 kHz from the region of the round window. Analysis of 1,440 measurements suggested the possibility of damage appearing in the upper turnings of the cochlea. The subsequent morphological analysis was based on the estimation of the state of the hair cells (a three-degree scale of injury) in a Zeiss DSM 950 scanning microscope and of the structure of the fibers of the acoustic nerve in a Zeiss EM 900 transmission microscope. Vibration-induced changes were seen in all the examined inner ears of the experimental groups. Hair-cell damage was more often seen in the region of the apex, spreading gradually in the direction of the base and from the circumference (outer hair cells of the third row) to the modiolus. The most characteristic vibrational changes of the acoustic nerve fibers occurred in 100% of the examined myelin sheaths and were visible as decreases in their electrodensity. The changes in both the assessed elements of the inner ear appeared simultaneously but independently and were directly connected with the duration of the experiment. The results obtained allow an explanation of the mechanism of hearing loss in persons subjected to whole-body vibration. The damages done to the inner ear structures may cause a worsening of hearing there, especially in the low and medium frequencies.
Topics: Animals; Cochlea; Cochlear Microphonic Potentials; Cochlear Nerve; Female; Guinea Pigs; Male; Microscopy, Electron, Scanning; Microscopy, Electron, Transmission; Models, Animal; Time Factors; Vibration
PubMed: 15221317
DOI: 10.1007/s00405-004-0799-8 -
Proceedings of the Staff Meetings. Mayo... Mar 1957
Topics: Cochlear Nerve; Disease; Humans; Neuritis; Tetanus; Tetanus Antitoxin; Tetanus Toxoid; Vestibulocochlear Nerve
PubMed: 13420169
DOI: No ID Found -
Neurological Research Apr 1998We evaluated the operative outcome in 22 consecutive patients who underwent microvascular decompression (MVD) of the intracranial portion of the cochlear nerve to...
We evaluated the operative outcome in 22 consecutive patients who underwent microvascular decompression (MVD) of the intracranial portion of the cochlear nerve to relieve incapacitating tinnitus and related it to preoperative findings. The patients were selected for operation from the following criteria: severe tinnitus with sensorineural hearing loss and/or changes in brainstem auditory evoked potentials (BAEPs). Fifty percent had unilateral tinnitus. Before operation, 17 patients (77%) had sensorineural hearing loss in their affected ear. BAEPs were abnormal in 21 patients (95%) and acoustic middle ear reflex response was abnormal in six patients (27%). Vascular compression of the cochlear nerve was found in all patients during the operation. After the operation, 33% had relief of their tinnitus (two patients were totally free of tinnitus and five were markedly improved). Eight patients were slightly improved (38%), and the tinnitus did not change in four patients; two patients (10%) became worse. Of the patients with unilateral tinnitus, 63% had relief of their tinnitus. In one patient hearing was noticeably improved after the operation. Five patients (23%) had mild to moderate sensorineural hearing loss due to the operation. No other complications were detected.
Topics: Adult; Aged; Cochlear Nerve; Evoked Potentials, Auditory, Brain Stem; Female; Follow-Up Studies; Humans; Male; Middle Aged; Patient Satisfaction; Postoperative Period; Tinnitus; Treatment Outcome; Vascular Surgical Procedures
PubMed: 9583586
DOI: 10.1080/01616412.1998.11740513 -
Acta Oto-laryngologica 1959
Topics: Action Potentials; Animals; Cochlea; Cochlear Nerve; Ear, Inner; Guinea Pigs; Hearing
PubMed: 13832878
DOI: 10.3109/00016485909129217