内窥镜鼻窦手术前后鼻气道阻力的变化

目的研究内窥镜鼻窦手术对鼻气道阻力的影响及后者与鼻气流感觉的关系。方法利用前鼻测压法及视觉类比法对４２例（５０侧）慢性鼻窦炎鼻息肉患者手术前后、鼻减充血前后的鼻气道阻力和主观症状评分进行研究。结果术后鼻气道阻力明显下降，手术前后鼻气道阻力变化率喷麻黄素前后分别为（５５．７１±１３．９０）％和（２４．３２±８．７３）％，两者相比差异有显著性（Ｐ＜０．０５）；术前喷麻黄素前鼻气道阻力与主观鼻气流感觉显著相关（Ｐ＜０．０５，ｒ＝０．４２）。结论内窥镜鼻窦手术对鼻通气功能的改善主要是由于粘膜肿胀的消退而非鼻腔结构的改变；测定鼻气道阻力对于客观评价鼻通气功能仍具重要临床意义。

Changes in nasal airway resistance before and after endoscopic sinus surgery

Objective To study the influence of endoscopic sinus surgery(ESS)on nasal airway resistance(NAR)and to analyze the relationship between NAR and nasal airflow sensation. Methods The NAR and nasal airflow sensation were measured with anterior rhinomanometry and visual analogous scale test (VAS) in 42 patients (50 sides) before and after the ESS. Results NAR decreased significantly after the operation. The change rates in NAR before and after the decongestion were (55.7113.90)% and (24.328.73)%, respectively, and there was a significant difference (P<0.05). The pathological increase in NAR correlated well with subjective sensation of the patients (P<0.05). ConclusionBZThe improvement of nasal functions by ESS is not due to the alteration of the anatomic structure of the nasal cavity, but to the ameliAuthor oration of mucosal edema. The rhinomanometry can be used as a useful clinical tool in determining nasal patency.