Comparative Evaluation of Cephalometry, Anthropometric and Oral Measurements as Predictors for Severity of Obstructive Sleep Apnea Syndrome
|Full paper||Not Available|
This study was designed to evaluate the diagnostic yield of cephalometric, anthropometries and oral cavity measurements in cases with obstructive sleep apnea syndrome (OSAS). The study comprised 10 volunteers as control group and 20 patients with OSAS diagnosed depending on an Epworth Sleepiness Scale Score (ESSS) >10 and a respiratory disturbance index (RDI) >5. Body mass index (BMI) and neck circumference (NC) measured at the level of the cricothyroid membrane were identified. Standard radiographic cephalometry was done and 6 cephalometric variables were defined. Intraoral measurements included the maxillary (MxID) and mandibular intermolar distance (MnID), hard palate height (=DG) and degree of retrognathia. BMI and NG showed a significant increase in patients with a positive significant correlation with RDI scores. Maxillary and mandibular intermolar distances showed a significant increase in patients with OSAS but with a non-significant correlation with RDI scores. Cephalometric evaluation of DG, the length of the soft palate and the degree of retrognathia showed a significant increase but the width of the air column showed a significant decrease in OSAS patients. RDI scores showed a significant correlation with cephalometric variables, but using Stepwise regression multivariate analysis showed that BMI, degree of retrognathia and PNS-P remained significant on combination. It could be concluded that BMI, the degree of retrognathia as judged the ENF angle and the length of the soft palate significantly correlate with the occurrence and severity of OSAS evaluated in combination could be used as a preliminary investigations to identify patients with OSAS requiring further investigations and treatment.