Laterality of Audiovestibular Symptoms Predicts Laterality of Endolymphatic Hydrops in Hydropic Ear Disease (Menière).
Journal
Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology
ISSN: 1537-4505
Titre abrégé: Otol Neurotol
Pays: United States
ID NLM: 100961504
Informations de publication
Date de publication:
10 2020
10 2020
Historique:
entrez:
14
9
2020
pubmed:
15
9
2020
medline:
15
4
2021
Statut:
ppublish
Résumé
For clinical confirmation of the diagnosis of hydropic ear disease (HED) (Menière) by MR imaging, two routes of contrast enhancement of the perilymphatic space are currently being used: intratympanic and intravenous. While unilateral intratympanic contrast application generally enables a higher perilymph signal intensity and image quality, the intravenous route allows for imaging of both inner ears simultaneously. It is conceivable that intratympanic contrast application to one ear would result in a failure to detect endolymphatic hydrops in a given patient if the hydrops is present only in the other ear. Therefore, in this study we examined the question whether the ear with the greater degree of endolymphatic hydrops may be predicted based on clinical features. Retrospective study of 50 patients with HED confirmed on MR imaging. Three tesla MR imaging with 3D fluid attenuated inversion recovery 4 hours after intravenous gadolinium contrast application was used to detect endolymphatic hydrops. The index ear was defined by auditory symptoms during attacks, low frequency hearing loss, and caloric canal paresis. In all patients the ear with more severe symptoms corresponded with the ear showing the more severe hydrops on MR imaging. In summary, in this study population the degree of low-frequency hearing loss (250 Hz-1 kHz) in combination with auditory symptoms during attacks identified the ear with the greater extent of endolymphatic hydrops in all patients. In conclusion, intratympanic contrast application to the index ear seems to be sufficient to confirm the diagnosis of HED (Menière) on MR imaging.
Sections du résumé
BACKGROUND
For clinical confirmation of the diagnosis of hydropic ear disease (HED) (Menière) by MR imaging, two routes of contrast enhancement of the perilymphatic space are currently being used: intratympanic and intravenous. While unilateral intratympanic contrast application generally enables a higher perilymph signal intensity and image quality, the intravenous route allows for imaging of both inner ears simultaneously. It is conceivable that intratympanic contrast application to one ear would result in a failure to detect endolymphatic hydrops in a given patient if the hydrops is present only in the other ear. Therefore, in this study we examined the question whether the ear with the greater degree of endolymphatic hydrops may be predicted based on clinical features.
METHODS
Retrospective study of 50 patients with HED confirmed on MR imaging. Three tesla MR imaging with 3D fluid attenuated inversion recovery 4 hours after intravenous gadolinium contrast application was used to detect endolymphatic hydrops. The index ear was defined by auditory symptoms during attacks, low frequency hearing loss, and caloric canal paresis.
RESULTS
In all patients the ear with more severe symptoms corresponded with the ear showing the more severe hydrops on MR imaging.
CONCLUSION
In summary, in this study population the degree of low-frequency hearing loss (250 Hz-1 kHz) in combination with auditory symptoms during attacks identified the ear with the greater extent of endolymphatic hydrops in all patients. In conclusion, intratympanic contrast application to the index ear seems to be sufficient to confirm the diagnosis of HED (Menière) on MR imaging.
Identifiants
pubmed: 32925855
doi: 10.1097/MAO.0000000000002775
pii: 00129492-202010000-00027
doi:
Substances chimiques
Contrast Media
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e1140-e1144Références
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