Abstract
The dynamics of nasal respiration both in its normal and in its pathologic state has been variously studied. As yet a satisfactory basis has not been established for the determination of the resistance, accommodation and shrinkage capacity of the nasal air way. The rhinologist has always been confronted with these phenomena but has had no adequate method for their quantitative evaluation. The present investigation was, therefore, undertaken in an endeavor to standardize these factors and thereby furnish an index of the respiratory efficiency of the nasal tract. For this study a special manometer was devised. Various nasal manometers have been described by Undritz, 1 O'Malley, 2 Krimsky 3 and others 4 in clinical and physiologic studies related to nasal respiration, but the procedures involved were either time-consuming or difficult for the patient. With the simplified apparatus herein presented a quantitative measurement of nasal obstruction is obtained independent
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