Bravo-Arteaga SY, Durán-Ortiz M, Pineda-Cásarez F, Díaz-Sainz DE

Language: Spanish
References: 18
Page: 309-315
PDF size: 200.11 Kb.

ABSTRACT

Background: The frontal recess is the drainage pathway of the frontal sinus. It is a space surrounded by frontoethmoidal cells, that have great variability, which makes its understanding difficult. The International Frontal Sinus Anatomy Classification (IFAC) is a precise system that contributes to the presurgical planning for the frontal sinus endoscopic approach.
Objective: To classify the frontoethmoidal cells using IFAC in CT scans of paranasal sinuses done in Mexican patients from a third level hospital.
Materials and Methods: Cross-sectional, observational and retrolective study in which CT scans were analyzed, from patients who attended the ISSSTE Hospital Regional General Ignacio Zaragoza in Mexico, from January to December, 2018. Radiological presence of frontoethmoidal variants was evaluated, according to the IFAC. Descriptive statistics were performed to report the results, as well as Cohen’s kappa index for the interobservers concordance.
Results: There were assessed 165 CT scans. The agger nasi cell was found with the highest prevalence (94.5%), followed by the suprabullar (58.7%) and in third place the supra agger cell (40.6%). The frontal septal cell was the least prevalent (5.4%). The inter-rater reliability showed values of the κ index of 0.745.
Conclusions: The IFAC is a reliable system for classifying the frontoethmoidal region. In the Mexican population, the cells agger nasi, suprabullar and supra agger predominate.

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