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Chem. Senses 27: 117-121, 2002
© Oxford University Press 2002

Olfactory Acuity after Total Laryngectomy

Megumi Fujii, Keijiro Fukazawa, Chihiro Hatta, Hiroki Yasuno1 and Masafumi Sakagami

Department of Otorhinolaryngology, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan 1 Takarazuka Municipal Hospital, Hyogo, Japan

Correspondence to be sent to: Megumi Fujii, Department of Otorhinolaryngology, Hyogo College of Medicine, Mukogawa-cho, Nishinomiya, Hyogo 663-8501, Japan. e-mail: megumi{at}hyo-med.ac.jp

The olfactory acuity of 29 patients receiving laryngectomy was prospectively studied. The olfactory acuity was evaluated by Jet Stream Olfactometer (JSO) and Alinamin® test preoperatively and at 3, 6 and 12 months postoperatively. The findings of nasal/olfactory mucosae were also observed by rigid endoscope. Based on the results of JSO, the averages of detection/recognition thresholds tended to increase 3 months postoperatively, then the averaged thresholds tended to decrease thereafter. There were significant differences between preoperative values and those 3 months after surgery, but there were no significant differences between preoperative values and these 6/12 months after surgery. Nasal respiratory mucosae observed 12 months after laryngectomy showed atrophic nasal mucosa in 11/14 patients. However, olfactory mucosae appeared normal in all of the patients observed. These results suggested that the function of the olfactory epithelium remained intact after laryngectomy.


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