Caloric Response After Lateral Semicircular Canal Plugging
نویسندگان
چکیده
منابع مشابه
[Caloric response of the isolated semicircular canal].
In order to investigate the mechanism of caloric response, thermal stimuli were applied to the partially isolated semicircular canal of the bull frog. Warming or cooling stimulus to the canal side changed the ampullary nerve activity. When the semicircular canal was placed in the horizontal plane, thermal stimulus induced monophasic response, which is possibly due to a change in the density of ...
متن کاملIntractable Persistent Direction-Changing Geotropic Nystagmus Improved by Lateral Semicircular Canal Plugging
Antigravitational deviation of the cupula of the lateral semicircular canal, which is also called light cupula, evokes persistent direction-changing geotropic nystagmus with a neutral point. No intractable cases of this condition have been reported. In our case, a 67-year-old man complained of positional vertigo 3 months after developing idiopathic sudden hearing loss in the right ear with vert...
متن کاملInfluence of surgical plugging on horizontal semicircular canal mechanics and afferent response dynamics.
Mechanical occlusion of one or more of the semicircular canals is a surgical procedure performed clinically to treat certain vestibular disorders and used experimentally to assess individual contributions of separate canals and/or otoliths to vestibular neural pathways. The present experiments were designed to determine if semicircular canal afferent nerve modulation to angular head acceleratio...
متن کاملCaloric testing in patients with heavy or light cupula of the lateral semicircular canal
OBJECTIVE To clarify whether the dysfunction of the lateral semicircular canal remain or not in patients with heavy or light cupula. STUDY DESIGN Prospective case series. METHODS The subjects were 19 patients with heavy cupula (3 males, 16 females; mean age, 62.8 years) and 14 patients with light cupula (5 males, 9 females; mean age, 63 years). Caloric testing (iced water) was carried out a...
متن کاملSpatial orientation of caloric nystagmus in semicircular canal-plugged monkeys.
We studied caloric nystagmus before and after plugging all six semicircular canals to determine whether velocity storage contributed to the spatial orientation of caloric nystagmus. Monkeys were stimulated unilaterally with cold ( approximately 20 degrees C) water while upright, supine, prone, right-side down, and left-side down. The decline in the slow phase velocity vector was determined over...
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ژورنال
عنوان ژورنال: Equilibrium Research
سال: 2003
ISSN: 0385-5716,1882-577X
DOI: 10.3757/jser.62.190