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We studied vestibular evoked myogenic potentials (VEMPs) in nine patients with unilateral profound hearing loss followed by contralateral delayed hearing fluctuation and episodic vertigo. This condition has been called contralateral delayed endolymphatic hydrops. Five of nine ears with profound hearing loss (56%) showed an absence of VEMPs. One ear (11%) showed decreased responses, and three ears (33%) had normal responses. Of the ears with fluctuation of hearing, six (67%) showed an absence of responses, and three ears (33%) showed normal responses. In four patients we recorded VEMPs before and after oral administration of glycerol. Three hours after glycerol administration, two of four ears with fluctuating hearing loss showed the appearance of VEMPs although there was an absence of VEMPs before glycerol administration. These results suggested that saccular dysfunction could exist not only in the ears with profound hearing loss but also in ears with fluctuating hearing loss and that saccular endolymphatic hydrops could exist in the ears with fluctuating hearing loss. "Contralateral delayed endolymphatic hydrops" might be an appropriate term.
Masafumi Ohki, and
Masaki Matsuzaki, and
Keiko Sugasawa, and
Toshihisa Murofushi
September 2002,
The Laryngoscope,
Masafumi Ohki, and
Masaki Matsuzaki, and
Keiko Sugasawa, and
Toshihisa Murofushi
January 2021,
ORL; journal for oto-rhino-laryngology and its related specialties,
Masafumi Ohki, and
Masaki Matsuzaki, and
Keiko Sugasawa, and
Toshihisa Murofushi
November 2005,
Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology,
Masafumi Ohki, and
Masaki Matsuzaki, and
Keiko Sugasawa, and
Toshihisa Murofushi
June 2009,
Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology,
Masafumi Ohki, and
Masaki Matsuzaki, and
Keiko Sugasawa, and
Toshihisa Murofushi
October 2015,
Scientific reports,
Masafumi Ohki, and
Masaki Matsuzaki, and
Keiko Sugasawa, and
Toshihisa Murofushi
August 2010,
Acta oto-laryngologica,
Masafumi Ohki, and
Masaki Matsuzaki, and
Keiko Sugasawa, and
Toshihisa Murofushi
January 2010,
ORL; journal for oto-rhino-laryngology and its related specialties,
Masafumi Ohki, and
Masaki Matsuzaki, and
Keiko Sugasawa, and
Toshihisa Murofushi
February 2015,
Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology,
Masafumi Ohki, and
Masaki Matsuzaki, and
Keiko Sugasawa, and
Toshihisa Murofushi
June 2006,
The Laryngoscope,
Masafumi Ohki, and
Masaki Matsuzaki, and
Keiko Sugasawa, and
Toshihisa Murofushi
September 2020,
Acta oto-laryngologica,
