Tatchell R H, Lerman J W, Watt J
Am J Otolaryngol. 1985 Nov-Dec;6(6):426-32. doi: 10.1016/s0196-0709(85)80021-1.
This study tested a number of hypotheses concerning the interrelationships between the olfactory abilities and the volume of nasal airflow in laryngectomees. Data were collected from 25 laryngectomees and 25 control subjects and comprised the following: 1) Odor threshold and identification test results. In the threshold test, an 11-step aqueous dilution series of butanol was used. In the odor identification tests, 14 common odorants were used. 2) Measurement of nasal air flow volume in liters per minute. For olfaction and airflow, the laryngectomees' measurements were made under two conditions: 1) using unassisted airflow through the nose, and 2) using a laryngeal bypass that linked the stoma to the mouth and allowed airflow through the nose. The major findings showed that among laryngectomees olfactory abilities depend on nasal airflow. It is concluded that laryngectomees have intact olfactory mechanisms that function normally when adequate airflow volume is provided.
本研究检验了一些关于喉切除患者嗅觉能力与鼻腔气流量之间相互关系的假设。从25名喉切除患者和25名对照受试者收集了数据，包括以下内容：1）气味阈值和识别测试结果。在阈值测试中，使用了丁醇的11步水溶液稀释系列。在气味识别测试中，使用了14种常见气味剂。2）以每分钟升数为单位测量鼻腔气流量。对于嗅觉和气流量，在两种条件下对喉切除患者进行测量：1）使用通过鼻子的自然气流，2）使用将造口与口腔相连并允许气流通过鼻子的喉旁路。主要研究结果表明，在喉切除患者中，嗅觉能力取决于鼻腔气流。得出的结论是，喉切除患者具有完整的嗅觉机制，当提供足够的气流量时，该机制能正常发挥作用。
