A comparative study on the evaluation of velopharyngeal insufficiency with lateral cephalometric radiographs and nasopharynx fiberscope

doi:10.19438/j.cjoms.2020.03.011

Abstract

Abstract: PURPOSE: To explore the consistency between lateral cephalometric radiographs and nasopharynx fiberscope in determination of velopharyngeal insufficiency of different types of motion (coronary, sagittal and annular), and the application of lateral cephalometric radiographs in determination of velopharyngeal insufficiency. METHODS: Eighty-seven eligible patients with palatoplasty were evaluated by nasopharynx fiberscope and lateral cephalometric radiographs respectively, and the results were analyzed by paired t test, Pearson’s correlation analysis and kappa consistency test with SPSS 13.0 software package. RESULTS: There was a strong positive linear correlation between rate of velopharyngeal insufficiency (RVPI) and rate of velopharyngeal sagittal restriction (RVSR) (Pearson’s correlation coefficient 0.695, P< 0.01), in which there was a strong positive linear correlation between RVPI and RVSR in the coronary closure group and annular closure group (Pearson’s correlation coefficient 0.678 and 0.728, P<0.01), and a weak correlation between RVPI and RVSR in the sagittal closure group (Pearson’s correlation coefficient 0.409, P>0.05）. The kappa value of the two evaluation methods was 0.597, and the consistency of the two evaluation methods is moderate; the kappa value of the two evaluation methods in the coronary closure group was 0.630, the kappa value of the two evaluation methods in the sagittal closure group was 0.667, and the kappa value of the two evaluation methods in the annular closure group was 0.534. CONCLUSIONS: Lateral cephalometric radiographs is a reliable method to evaluate velopharyngeal function, and the degree of anastomose with nasopharynx fiberscope method is moderate, which is related to the type of closure. Lateral cephalometric radiographs can be used as a screening method for velopharyngeal insufficiency in clinical practice. When it is inconsistent with subjective evaluation, it should be comprehensively evaluated with nasopharynx fiberscope.

Key words: Lateral cephalometric radiographs, Nasopharynx fiberscope, Velopharyngeal insufficiency

CLC Number:

R782.2

PENG Zhao-wei, ZHONG Tian-hang, HAN Jian-li, KUANG Yi-yuan, MA Lian. A comparative study on the evaluation of velopharyngeal insufficiency with lateral cephalometric radiographs and nasopharynx fiberscope[J]. China Journal of Oral and Maxillofacial Surgery, 2020, 18(3): 245-249.

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