Diagnostic accuracy of current glossoptosis classification systems: A nested cohort cross‐sectional study

Objectives/Hypothesis To assess the performance of endoscopic grading systems of glossoptosis in identifying severe clinical manifestations in children with Robin sequence (RS). Study Design Nested cohort cross‐sectional study. Methods All RS patients diagnosed at Hospital Clinics of Porto Alegre from October 2012 to June 2016 were enrolled in this cohort. Patients underwent sleep endoscopy and were classified according to Yellon (Y) and de Sousa et al. (S) scales. Symptom severity evaluation was performed as defined by Cole et al. The outcome of interest was Cole's clinical classification grade 3. Results Eighty patients were eligible for analysis. Sensitivity (Y: 56.2%, S: 28.1%, P