抄録
The study of nasal resistance to air flow is important for understanding nasal function.
Many methods have been used to measure the nasal pressure-flow rate relationship and nasal resistance. However, a standard measurement technique and a standard expression for nasal rsistance have not been agreed upon and a comparison between the findings of various investigators is difficult.
A new method for measuring nasal resistance was used here. The experiments were performed on twenty-six volunteers from the medical school.
Evaluation of the nasal passage was first made by the passive anterior method using the 3Hz forced oscillation technique, followed by measurements of nasal resistance by the direct method (measurement of transnasal pressure drop and flow rate).
The two methods give values of comparable magnitude. There was a fairly close correlation between the two.
The method recommended in this paper has the advantage of simplicity, wide range of applicability, reasonable accuracy and sensitivity.
