Mevio E, Perano D, Bulzomì A G
Clinica Otorinolaringoiatrica Universita di Pavia, IRCCS San Matteo, Italy.
Acta Otorhinolaryngol Belg. 1994;48(1):23-6.
The authors compared the reliability of the olfacto-respiratory test with the vasomotor response evoked by the olfactory stimulation of nasal mucosa, as detected by laser-Doppler flowmetry. The aim was to investigate the possible advantages offered by laser-Doppler flowmeter testing, since this machine has a great capacity for detecting even very small variations in blood flow. The authors, however, can affirm that laser-Doppler flowmetry is only able to detect reflex reactions evoked by stimuli affecting trigeminal innervation. No reaction could be detected following trial with purely olfactory odorants and, in any case, even the reaction to olfacto-trigeminal or gusto-olfacto-trigeminal stimuli could be detected only in response to stimulation that was quantitatively stronger than that necessary to trigger the corresponding respiratory reflex.
作者将嗅觉-呼吸测试的可靠性与通过激光多普勒血流仪检测到的鼻黏膜嗅觉刺激诱发的血管运动反应进行了比较。目的是研究激光多普勒血流仪测试可能具有的优势，因为该仪器具有检测甚至非常微小的血流变化的强大能力。然而，作者可以肯定的是，激光多普勒血流仪仅能检测由影响三叉神经支配的刺激诱发的反射反应。使用纯嗅觉气味剂进行试验后未检测到任何反应，而且在任何情况下，即使是对嗅觉-三叉神经或味觉-嗅觉-三叉神经刺激的反应，也只有在刺激强度在数量上强于触发相应呼吸反射所需的强度时才能被检测到。
