Objectives: Nasopharyngeal (NP) depth prediction is clinically relevant in performing medical procedures, and enhancing technique precision and safety for patients. Nonetheless, clinical predictive variables and normative data in adults remain limited. This study aimed to determine normative data on NP depth and its correlation to external facial measurements. Methods: A multicenter cross-sectional study obtained data from adults presenting to otolaryngology clinics at five sites in Canada, Italy, and Spain. Investigators compared the endoscopically measured depth from sill to nasopharynx along the nasal floor to the facial measurements “curved distance from the alar-facial groove along the face to the tragus” and “distance from the tragus to a plane perpendicular to the philtrum.” When sinus CT images were available, the distance from the nasopharynx to nasal sill was also collected. Results: 371 patients participated in the study (41% women; 51 years old, SD 18). The average endoscopic depth was 9.4 cm (SD 0.86) and 10.1 cm (SD 0.9) for women and men, respectively (p<0.001; 95% CI 0.46 to 0.86). Perpendicular distance was strongly correlated to NP depth (r=0.775; p<0.001), with an average underestimation of 0.1 cm (SD 0.65; 95% CI 0.06 to 0.2). The equation: ND(cm) = perpendicular distance*0.773 + 2.344, generated from 271 randomly selected participants, and validated on 100 participants, resulted in a 0.03 cm prediction error (SD 0.61; 95% CI -0.08 to 0.16). Conclusions: Nasopharyngeal depth can be accurately approximated by the distance from the tragus to a plane perpendicular to philtrum. The generated predictive equation was most accurate but not likely clinically relevant.
Objectives: The aim of this study has been to analyze effects on Quality of Life (QoL) of the multilevel surgery for Obstructive Sleep Apnea (OSA). Also, we have compared the impact on QoL of two different treatments for patients with moderate to severe OSA such as CPAP and transoral robotic surgery (TORS). Design: 67 OSA patients who underwent multilevel robotic surgery and 67 OSA patients treated with CPAP were enrolled in a Group 1 and Group 2 respectively. The Glasgow Benefit Inventory (GBI) questionnaire has been administrated to all patients to evaluate the changes in the QoL after the different OSA treatment. Respiratory outcomes pre and post treatment were evaluated and compared. Results: Group 1 showed a GBI total average value of +30.4, whereas the group 2 a value of +33.2 . No statistical difference emerged (p=0.4). General benefit score showed no difference between groups (p = 0.1). Better values of social status benefit (p= 0.0006) emerged in CPAP Group, whereas greater physical status benefit (p=0.04) was showed in TORS Group. Delta-AHI (-23.7 ± 14.3 vs -31.7 ± 15.6; p = 0.001), Delta-ODI (-24.5 ± 9.5 vs. -29.4 ±10.5; p = 0.001) showed better values in CPAP group. Therapeutic success rate of Multilevel TORS Group was 73.1% and 91% in CPAP group (p = 0.01) respectively. Conclusion: Multilevel TORS and CPAP have a positive effect in quality of life of OSA patients. Greater social support has been reported in CPAP group and better physical health status in TORS group.