Multiparametric Correlation Between Anatomical Variants of the Paranasal Sinuses and Chronic Rhinosinusitis: Case-control Study

Introduction: Chronic rhinosinusitis (RSC) is a disabling disease that can affect up to 70% of people. It is very important to know which are the anatomical variants that the patient presents for surgical planning and often for the treatment of the variants that can present as a risk factor. The evidence shows heterogeneity in the prevalence of these anatomical variants and it is not described quantitatively which are the variants that present the greatest relationship as a risk factor. Establishing the multiparametric correlation between at least one of the most frequent anatomical variants of the paranasal sinuses and the development of rhinosinusitis is the most important objective of this investigation. Materials and methods: Case-control study with multiparametric correlation analysis of the anatomical variants of paranasal sinuses as a risk factor in the development of sinusitis. Analysis with measures of central tendency, Xi2, Fisher's exact test, binary logistic regression. Results: The most frequent anatomical variant was the deviation of the nasal septum on the left side (78%). The second most common variant found was the Agger Nasi cells (68%), followed by the protrusion of the Vidian nerve in the sphenoid sinus (52%). The only anatomical variant that could be determined within the regression model was the obstruction of the osteomeatal complex; which is presented as a risk factor with an OR of 16 (95% CI: 6.9-41.3). Conclusions: Obstruction of the osteomeatal complex is a very important risk factor for the development of chronic rhinosinusitis.