鼻腔最大吸气流量在临床中的应用

目的 :探讨测量单侧鼻腔最大吸气流量 (PnIFR)的方法及其临床价值。方法 :使用在RHAT 30 1型数字式风速 /温度表基础上研制的流量计测量 10 0例 2 0 0侧麻黄素收缩鼻腔粘膜前、后单侧鼻腔PnIFR。并记录主观感觉鼻腔通气程度。结果 :单侧鼻腔PnIFR值 :男性组正常者明显高于女性组正常者 (P <0 .0 1) ;男性组正常者分别高于男性组轻、中、重度阻塞者 (P <0 .0 1) ;女性组正常者分别高于女性组轻、中、重度阻塞者 (P <0 .0 1) ;两组在麻黄素收缩鼻粘膜前与麻黄素收缩鼻粘膜后 ,差异均有显著性意义 (P <0 .0 1)。主观感觉鼻通气程度 (4级 ) :两组与单侧鼻腔PnIFR值均呈负相关 (P <0 .0 1)。结论 :测量单侧鼻腔PnIFR值可较准确地反映鼻腔通气程度及药物对鼻阻力的影响 ,改装后的热电流量计 ,使用方便 ,测量准确 ,适合于临床研究和日常检查应用

The utility of peak nasal inspiratory flow rate for clinical practice

Objective:To find out whether peak nasal inspiratory flow rate (PnIFR) of one side nose can indicate nasal patency.Method:PnIFR was measured using RHAT 301 wind rate meter (Qinghuatongfang Incorporated Company). One hundred subjects were recruited .We measured PnIFR of every side of nose of all subjects before and after using 3% ephedrine and registered the grade of patients' complaint of nasal obstruction. Result:PnIFR in normal male and in normal female are different; PnIFR in normal and in patients are different; The grade of patients' complaint of nasal obstruction is correlated with PnIFR; PnIFR in patients before and after using ephedrine are different.Conclusion: PnIFR of one side nose can indicate the severity of nasal obstruction; RHAT 301 flow meter is convenient to measure PnIFR for clinical practice,and PnIFR of one side nose can indicate nasal patency; PnIFR of one side nose can indicate the effect of drugs on nasal airway resistance (NAR).