The Anatomical Measurements of The Soft Palate and Its Association with Snoring

Background: Snoring is a prevalent health concern affecting a large portion of adults, with variations in soft palate anatomy playing a critical role in its severity. This study explores the association between specific anatomical features of the soft palate and the occurrence and severity of snoring. The objectives of this study were to investigate dimensional variations in the soft palate between snorers and non-snorers, analyze the relationship between soft palate tissue properties and the intensity of snoring, and identify anatomical markers that may predict an individual's susceptibility to snoring. Methods: A prospective case-control study was conducted with 200 participants (100 snorers and 100 non-snorers) recruited from Kuala Lumpur, Malaysia. Soft palate dimensions (length, thickness, width, angle, and tissue density) were measured using advanced imaging techniques. Snoring was assessed through polysomnography, sound level measurements, and partner questionnaires. Data analysis was performed using SPSS version 26.0. Results: Snorers exhibited significantly longer (37.8 ± 4.2 mm vs. 32.4 ± 3.8 mm, p < 0.001), thicker (11.2 ± 1.8 mm vs. 8.7 ± 1.5 mm, p < 0.001), and wider (15.6 ± 2.1 mm vs. 13.8 ± 1.9 mm, p < 0.05) soft palates compared to non-snorers. Higher Mallampati classes (III and IV) were more common among snorers (60% vs. 20%). Correlations were observed between Mallampati classification and soft palate dimensions, with increasing class associated with greater length, thickness, and width. Conclusions: This study identifies significant anatomical differences in the soft palate associated with snoring. Elongated, thicker, soft palates and steeper angles between the soft and hard palates were linked to increased snoring severity. These findings highlight the potential for anatomical assessment to guide the diagnosis and management of snoring and related sleep disorders. Further research on dynamic soft palate imaging during sleep is recommended.