Furukawa M, Kamide M, Miwa T, Umeda R
Department of Otorhinolaryngology, School of Medicine, Kanazawa University, Japan.
Auris Nasus Larynx. 1988;15(2):113-6. doi: 10.1016/s0385-8146(88)80016-6.
Hyposmia, the decreased sense of smell, and anosmia, the loss of sense of smell, may be unilateral or bilateral. If the olfactory acuity examined by means of bilateral test is normal, olfactory disorders are not found; unilateral examination is therefore necessary for definite evaluation of olfactory acuity. As evidence, 7 cases out of 94 patients with chronic rhinosinusitis and 6 cases out of 12 patients who received the surgery of anterior cranial fossa showed definite different olfactory threshold between nasal cavities, and there were no patients who recognized the diminished sense of smell in spite of unilateral high olfactory threshold. Additionally, we have experienced that a patient with brain tumor was diagnosed by the help of unilateral olfactory test. We thus strongly recommend the unilateral olfactometry as a method for simple and reliable test in clinical measurement of the sense of smell.
嗅觉减退（即嗅觉下降）和嗅觉丧失（即嗅觉缺失）可能是单侧或双侧的。如果通过双侧测试检查的嗅觉敏锐度正常，则未发现嗅觉障碍；因此，为了明确评估嗅觉敏锐度，单侧检查是必要的。作为证据，94例慢性鼻-鼻窦炎患者中有7例，12例接受前颅窝手术的患者中有6例鼻腔之间的嗅觉阈值存在明显差异，并且没有患者尽管单侧嗅觉阈值高却仍察觉到嗅觉减退。此外，我们曾遇到过一名脑肿瘤患者通过单侧嗅觉测试得以确诊。因此，我们强烈推荐单侧嗅觉测量法作为一种在临床嗅觉测量中进行简单可靠测试的方法。
