Characteristics of Smell Identification Test in Patients With Parkinson Disease

Objectives Parkinson disease (PD) is frequently associated with olfactory disorder at early stage, which is caused by deposition of Lewy bodies emerging from the olfactory bulb to higher olfactory centers. Early detection of olfactory disorder in the patients with PD may lead to the early diagnosis...

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Main Authors: Hisami Fujio, Go Inokuchi, Shun Tatehara, Shunsuke Kuroki, Yuriko Fukuda, Hisamoto Kowa, Ken-ichi Nibu
Format: Article
Language:English
Published: Korean Society of Otorhinolaryngology-Head and Neck Surgery 2019-05-01
Series:Clinical and Experimental Otorhinolaryngology
Subjects:
Online Access:http://www.e-ceo.org/upload/pdf/ceo-2018-01116.pdf
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author Hisami Fujio
Go Inokuchi
Shun Tatehara
Shunsuke Kuroki
Yuriko Fukuda
Hisamoto Kowa
Ken-ichi Nibu
author_facet Hisami Fujio
Go Inokuchi
Shun Tatehara
Shunsuke Kuroki
Yuriko Fukuda
Hisamoto Kowa
Ken-ichi Nibu
author_sort Hisami Fujio
collection DOAJ
description Objectives Parkinson disease (PD) is frequently associated with olfactory disorder at early stage, which is caused by deposition of Lewy bodies emerging from the olfactory bulb to higher olfactory centers. Early detection of olfactory disorder in the patients with PD may lead to the early diagnosis and treatment for this refractory disease. Methods Visual analog scale (VAS), Jet Stream Olfactometry, and Japanese smell identification test, Open Essence (OE), were carried out on 39 patients with PD. Thirty-one patients with postviral olfactory disorder (PVOD), which was caused by the olfactory mucosal dysfunction, were also enrolled in this study as control. Results There were no significant differences in detection thresholds (2.2 vs. 1.4, P=0.13), recognition thresholds (3.9 vs. 3.5, P=0.39) and OE (4.8 vs. 4.2, P=0.47) between PVOD and PD, while VAS scores of PVOD and PD were significantly different (2.0 and 6.2, P<0.01). In OE, significant differences were observed in the accuracy rates of menthol (68% vs. 44%, P=0.04) and Indian ink (42% vs. 15%, P=0.01) between PVOD and PD. Of particular interest, patients with PVOD tended to select “no detectable,” while patients with PD tended to select wrong alternative other than “no smell detected.” Conclusion Discrepancy between VAS and OE, and high selected rates of wrong alternative other than “undetectable” in OE might be significant signs of olfactory dysfunction associated with PD.
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spelling doaj.art-4af756e4af484a939df27a8fd623fb752022-12-21T18:30:26ZengKorean Society of Otorhinolaryngology-Head and Neck SurgeryClinical and Experimental Otorhinolaryngology1976-87102005-07202019-05-0112220621110.21053/ceo.2018.01116614Characteristics of Smell Identification Test in Patients With Parkinson DiseaseHisami Fujio0Go Inokuchi1Shun Tatehara2Shunsuke Kuroki3Yuriko Fukuda4Hisamoto Kowa5Ken-ichi Nibu6 Department of Otolaryngology-Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Japan Department of Otolaryngology-Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Japan Department of Otolaryngology-Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Japan Department of Otolaryngology-Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Japan Department of Otolaryngology-Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Japan Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences, Kobe, Japan Department of Otolaryngology-Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, JapanObjectives Parkinson disease (PD) is frequently associated with olfactory disorder at early stage, which is caused by deposition of Lewy bodies emerging from the olfactory bulb to higher olfactory centers. Early detection of olfactory disorder in the patients with PD may lead to the early diagnosis and treatment for this refractory disease. Methods Visual analog scale (VAS), Jet Stream Olfactometry, and Japanese smell identification test, Open Essence (OE), were carried out on 39 patients with PD. Thirty-one patients with postviral olfactory disorder (PVOD), which was caused by the olfactory mucosal dysfunction, were also enrolled in this study as control. Results There were no significant differences in detection thresholds (2.2 vs. 1.4, P=0.13), recognition thresholds (3.9 vs. 3.5, P=0.39) and OE (4.8 vs. 4.2, P=0.47) between PVOD and PD, while VAS scores of PVOD and PD were significantly different (2.0 and 6.2, P<0.01). In OE, significant differences were observed in the accuracy rates of menthol (68% vs. 44%, P=0.04) and Indian ink (42% vs. 15%, P=0.01) between PVOD and PD. Of particular interest, patients with PVOD tended to select “no detectable,” while patients with PD tended to select wrong alternative other than “no smell detected.” Conclusion Discrepancy between VAS and OE, and high selected rates of wrong alternative other than “undetectable” in OE might be significant signs of olfactory dysfunction associated with PD.http://www.e-ceo.org/upload/pdf/ceo-2018-01116.pdfPostviral Olfactory DisorderParkinson DiseaseOpen EssenceSmell Identification Test
spellingShingle Hisami Fujio
Go Inokuchi
Shun Tatehara
Shunsuke Kuroki
Yuriko Fukuda
Hisamoto Kowa
Ken-ichi Nibu
Characteristics of Smell Identification Test in Patients With Parkinson Disease
Clinical and Experimental Otorhinolaryngology
Postviral Olfactory Disorder
Parkinson Disease
Open Essence
Smell Identification Test
title Characteristics of Smell Identification Test in Patients With Parkinson Disease
title_full Characteristics of Smell Identification Test in Patients With Parkinson Disease
title_fullStr Characteristics of Smell Identification Test in Patients With Parkinson Disease
title_full_unstemmed Characteristics of Smell Identification Test in Patients With Parkinson Disease
title_short Characteristics of Smell Identification Test in Patients With Parkinson Disease
title_sort characteristics of smell identification test in patients with parkinson disease
topic Postviral Olfactory Disorder
Parkinson Disease
Open Essence
Smell Identification Test
url http://www.e-ceo.org/upload/pdf/ceo-2018-01116.pdf
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