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Endolymphatic hydrops and therapeutic effects are visualized in ‘atypical’ Meniere's disease.

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Title: Endolymphatic hydrops and therapeutic effects are visualized in ‘atypical’ Meniere's disease.
Authors: Miyagawa, Maiko (AUTHOR), Fukuoka, Hisakuni (AUTHOR), Tsukada, Keita (AUTHOR), Oguchi, Tomohiro (AUTHOR), Takumi, Yutaka (AUTHOR), Sugiura, Makoto (AUTHOR), Ueda, Hitoshi (AUTHOR), Kadoya, Masumi (AUTHOR), Usami, Shin-Ichi (AUTHOR)
Source: Acta Oto-Laryngologica. Nov2009, Vol. 129 Issue 11, p1326-1329. 4p. 3 Graphs.
Subjects: Ménière's disease, Isosorbide dinitrate (Drug), Diagnostic imaging, Ear, Magnetic resonance imaging, Diagnosis
Abstract: A 53-year-old male with fluctuating low frequency sensorineural hearing loss and tinnitus, but without vertigo, was evaluated by MRI obtained by intratympanic injection of a gadolinium-based contrast agent (GBCA) before and after the administration of isosorbide. The endolymphatic hydrops was semi-quantitatively evaluated by a 3.0-T MR scanner. For quantification, the affected side/contralateral side ratios were calculated. A gadodiamide (a kind of GBCA)-enhanced space surrounding the endolymph in the affected side with a 0.50 ratio (which may have represented endolymphatic hydrops) improved after isosorbide therapy to a 0.98 ratio. Thus, endolymphatic hydrops was demonstrated in a patient with ‘atypical’ Meniere's disease (MD), suggesting that at least some atypical MD may share similar etiology with, and therefore be a continuum of, MD. Also, therapeutic effects could be visualized by using MRI. Therefore, MRI-based diagnosis of MD-related disease will be a powerful tool not only because of its precision but also its usefulness for therapeutic evaluation. [ABSTRACT FROM AUTHOR]
Copyright of Acta Oto-Laryngologica is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Label: Title
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  Data: Endolymphatic hydrops and therapeutic effects are visualized in ‘atypical’ Meniere's disease.
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  Data: <searchLink fieldCode="AR" term="%22Miyagawa%2C+Maiko%22">Miyagawa, Maiko</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fukuoka%2C+Hisakuni%22">Fukuoka, Hisakuni</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tsukada%2C+Keita%22">Tsukada, Keita</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Oguchi%2C+Tomohiro%22">Oguchi, Tomohiro</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Takumi%2C+Yutaka%22">Takumi, Yutaka</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sugiura%2C+Makoto%22">Sugiura, Makoto</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ueda%2C+Hitoshi%22">Ueda, Hitoshi</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kadoya%2C+Masumi%22">Kadoya, Masumi</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Usami%2C+Shin-Ichi%22">Usami, Shin-Ichi</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Acta+Oto-Laryngologica%22">Acta Oto-Laryngologica</searchLink>. Nov2009, Vol. 129 Issue 11, p1326-1329. 4p. 3 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Ménière's+disease%22">Ménière's disease</searchLink><br /><searchLink fieldCode="DE" term="%22Isosorbide+dinitrate+%28Drug%29%22">Isosorbide dinitrate (Drug)</searchLink><br /><searchLink fieldCode="DE" term="%22Diagnostic+imaging%22">Diagnostic imaging</searchLink><br /><searchLink fieldCode="DE" term="%22Ear%22">Ear</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+resonance+imaging%22">Magnetic resonance imaging</searchLink><br /><searchLink fieldCode="DE" term="%22Diagnosis%22">Diagnosis</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: A 53-year-old male with fluctuating low frequency sensorineural hearing loss and tinnitus, but without vertigo, was evaluated by MRI obtained by intratympanic injection of a gadolinium-based contrast agent (GBCA) before and after the administration of isosorbide. The endolymphatic hydrops was semi-quantitatively evaluated by a 3.0-T MR scanner. For quantification, the affected side/contralateral side ratios were calculated. A gadodiamide (a kind of GBCA)-enhanced space surrounding the endolymph in the affected side with a 0.50 ratio (which may have represented endolymphatic hydrops) improved after isosorbide therapy to a 0.98 ratio. Thus, endolymphatic hydrops was demonstrated in a patient with ‘atypical’ Meniere's disease (MD), suggesting that at least some atypical MD may share similar etiology with, and therefore be a continuum of, MD. Also, therapeutic effects could be visualized by using MRI. Therefore, MRI-based diagnosis of MD-related disease will be a powerful tool not only because of its precision but also its usefulness for therapeutic evaluation. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Acta Oto-Laryngologica is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.3109/00016480802593513
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      – SubjectFull: Ménière's disease
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      – SubjectFull: Magnetic resonance imaging
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      – SubjectFull: Diagnosis
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      – TitleFull: Endolymphatic hydrops and therapeutic effects are visualized in ‘atypical’ Meniere's disease.
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              M: 11
              Text: Nov2009
              Type: published
              Y: 2009
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