Biomedical subjects

Eiji Sakata

Publications and source records attributed to Eiji Sakata.

3 recordsLinked to original sources

PubMed2004

Pitfalls in which otolaryngologists often are caught in the diagnosis and treatment of vertigo.

We have been clinically treating vertigo patients for the last 45 years. As is well-known, vertigo is not a simple otolaryngological disease. In fact, it is associated with various diseases in various clinical fields, including internal medicine, neurosurgery, and ophthalmology. As otolaryngologists, we have learned a few lessons from our experiences with patients having vertigo and in working with other otolaryngologists. Here, we discuss and share pitfalls in which otolaryngologists often are caught in diagnosing and treating vertigo.

Adult↗

PubMed2004

Motion sickness: its pathophysiology and treatment.

The pathogenesis of motion sickness includes both inner-ear stimulation by body movement, especially a Coriolis-type stimulus, and optokinetic stimulation due to the shift of the surrounding visual fields. According to Kornhuber, Sakata and others, the vestibular cerebellum also participates in an important way. We conducted this study to elucidate the influence of the vestibular cerebellum on the development of motion sickness. We initially focused attention on the visual suppression test of Takemori et al. as a test for vestibular cerebellar function. We reported a modification of this test, described as postrotatoric nystagmus. We employed this test as a rotatoric visual suppression test using milder stimulus for patients complaining of motion sickness. The pathogenesis and treatment of motion sickness are also discussed.

Adolescent↗

PubMed2003

Persistent continuous dizziness: pathophysiology and treatment.

Persistent blurred vision and oscillopsia have a negative impact on quality of life, and the burden of these symptoms is more severe than that of rotationally vertiginous attack. We doctors should take patients' pain as our own and treat them accordingly. However, because these cases are rather rare in daily clinical experience, in reality we tend to treat these patients as neurosis cases and send the patients home without providing adequate care. We conducted a retrospective study involving 182 recently treated clinical cases and found that "jumbling of objects," which is thought to be caused by bilateral peripheral vestibular lesions, was more often observed in patients with central vestibular lesions. We named this the pseudo-Dandy phenomenon. In this study, we discuss the pathophysiology and treatment of this pseudo-Dandy phenomenon.

Dizziness↗