摘要
鼻声反射系统（ａｃｏｕｓｔｉｃｒｈｉｎｏｍｅｔｒｙ，ＡＲ）是近年来逐渐普及的鼻腔空间结构客观检查方法之一。其准确性及方便性已被大多数使用者承认。过去曾有作者用其它方法对全喉切除术后患者鼻周期进行测定，结论是随着喉切除后鼻腔气流的改变，鼻周期也消失了。本研究利用ＡＲ系统对全喉切除术后患者鼻周期进行了测定，在同样命题的试验中首次证实了鼻周期的存在，周期曲线可表现为互补型、同步型及不规则型。从而澄清了鼻周期研究方面的一些疑点。
Abstract previous studies of the nasal cycle in laryngectomy patients using rhinomanometric tech-niques concluded that the cycle was ablished as a result of the cessation of airflow after la-ryngectomy, This study was performed with 20 postoperative laryngectomy patients and l0 control subjects matched for age and sex, Acoustic rhinometry was used to determine mini-mum nasal cross-sectional area and nasal cavity volume as the indices of nasal patency,Fluc-tuations in nasal patency were observed in all laryngectomees and controls,The fluctuations were classified as “ classical”(reciprocal alternating),“ irregular”and“in concert” cyclical patterns.This is the first demonstration of retantion of the nasal cycle after airflow depriva-tion,Whilst the cycle may in sone instances be modifled after operation , it is not abolised.
出处
《耳鼻咽喉（头颈外科）》
1996年第2期80-84,共5页
Chinese Arch Otolaryngology-Head Neck Surg
