Laine T, Warren D W, Dalston R M, Morr K E
Oral-Facial and Communicative Disorders Program, University of North Carolina, Chapel Hill 27514.
Cleft Palate J. 1988 Jul;25(3):220-5.
Although sophisticated techniques for estimating velopharyngeal port area during speech are available, clinicians continue to seek approaches for screening patients with suspected velar inadequacy. The aim of the present study is to determine the sensitivity and specificity of predicting velopharyngeal dysfunction based on nasal airflow measurements. The pressure-flow technique was used to measure velopharyngeal orifice area and nasal airflow rate in 211 subjects with cleft palate or velar dysfunction, or both. The data demonstrate that nasal airflow rates above 125 cc/sec are almost always associated with velar dysfunction. Sensitivity and specificity of this index were high (0.85 and 0.96, respectively). A correct diagnosis was made in 93% of the cases. As expected, errors in judgment occurred most frequently in subjects with borderline velopharyngeal inadequacy.
尽管有用于评估言语过程中腭咽口面积的复杂技术，但临床医生仍在寻找筛查疑似腭部功能不全患者的方法。本研究的目的是确定基于鼻气流测量预测腭咽功能障碍的敏感性和特异性。采用压力-流量技术测量了211例腭裂或腭部功能障碍患者或两者兼有的患者的腭咽口面积和鼻气流速率。数据表明，鼻气流速率高于125毫升/秒几乎总是与腭部功能障碍相关。该指标的敏感性和特异性很高（分别为0.85和0.96）。93%的病例诊断正确。正如预期的那样，判断错误最常发生在腭咽功能不全临界的患者中。
