Abstract
ObjectiveWe used a questionnaire to investigate olfactory function and the present state of olfactory rehabilitation for laryngectomized patients in Japan. MethodsThis study was conducted using a questionnaire survey. We mailed questionnaires to 190 members of a Japanese laryngectomized patient group (the nonprofit organization YOUSAY-KAI). The survey queried the following items: (1) basic information (age, sex, alaryngeal speech method, etc.); (2) questions about olfactory rehabilitation, such as the individual’s experience of olfactory rehabilitation, the number of days from laryngectomy to the start of olfactory rehabilitation, and the location of rehabilitation (i.e., hospital or patient association); (3) free comments; and (4) the self-administered Odor Questionnaire (SAOQ). ResultsWe received 121/190 questionnaires by the submission deadline. Of these, 105 questionnaires were valid. All 105 responders used the Provox voice prosthesis as the alaryngeal speech method. Only 4.7% (5/105) of the patients received olfactory rehabilitation in hospitals. Many comments in the free comment column included demands for olfactory rehabilitation such as “I want to know where we can have olfactory rehabilitation” and “I want to have rehabilitation if olfaction recovers.” The SAOQ score was significantly higher in the rehabilitation group (mean, 42.5%) compared to the nonrehabilitation group (mean, 22.1%) (p<0.05). There was no correlation between the SAOQ score and the number of days from laryngectomy to the start of rehabilitation (r=0.08, p=0.76)． ConclusionPatient demand for olfactory rehabilitation is strong, but this therapy is not widely offered to laryngectomized patients in Japan. Notably, the SAOQ scores showed that olfactory rehabilitation may have an effect, even if it is initiated after laryngectomy. We believe that when patients choose voice prosthesis for speech, their olfaction deteriorates unless they undergo olfactory rehabilitation separately from speech rehabilitation. It is therefore necessary to administer olfactory rehabilitation for laryngectomized patients who have never received olfactory rehabilitation, as well as for patients scheduled to undergo laryngectomy.
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