Long-Term Deviated Nasal Septum Cause More Severe Developmental Defects of Nasal Cavity Structure in Younger

Abstract

Objective: To investigate the effect of long-term deviated nasal septum (DNS) on the structure of the nasal cavity in patients of different ages. Study Design: A retrospective study. Setting: A total of 152 patients with DNS and 121 hospitalized patients without DNS in Huaian hospital, China, were recruited from January 2013 to December 2018. Methods: The CT (computed tomography) measurements of the transverse diameter of nasal cavity (A) and paranasal sinus (B), bilateral angles between alveolar process of maxillary bone and palatal bone, interalveolar distance and maxillary rotation distance were compared between both groups. Then, those parameters in patients with DNS in four age groups (≤23, 23~31.5, 31.5~43 and >43 years old) were analyzed using tendency tests. Results: DNS group showed lower ratio of A/B (0.38 vs. 0.39) and A/(B – A) (0.60 vs. 0.64) than control, while showed higher B – A (54.54 ± 9.9 vs. 51.43 ± 8.98) compared with that of control (p < 0.05). Furthermore, DNS group had wider interalveolar distance (41.53 ± 3.73 vs. 38.82 ± 3.06) and maxillary rotation distance (11.65 vs. 10.10) than control group (p < 0.001). Then the parameters of ratio of A/B, A/(B – A) and B – A significantly differed among subgroups according to the age of patients with DNS. Lastly, tendency tests showed that the ratio of A/B and A/(B – A) shortened, but the B – A extended as age decreased (p < 0.05). Conclusions: The present study demonstrated that patients with long-term DNS had significant changes in nasal cavity and paranasal sinus. Especially, younger patients with DNS underwent more severe developmental defects of nasal cavity and paranasal sinus.