PRE-OPERATIVELY WITH COMPUTED TOMOGRAPHY ASSISTANCE IN ASSESSING NASAL VALVE OBSTRUCTION: DIAGNOSTIC CRITERIA, DESCRIPTIVE SIGNS, AND CLINICAL SIGNIFICANCE

Abstract

Nasal valve obstruction (NVO) remains a frequently under-diagnosed contributor to nasal airway compromise, especially in candidates for rhinologic surgery. This study evaluates the role of pre-operative computed tomography (CT) assessment in the identification of internal nasal valve (INV) and external nasal valve (ENV) obstruction, defines objective diagnostic criteria, describes key morphological signs, and highlights the clinical significance of accurate pre-operative evaluation. Utilizing a cohort of patients undergoing functional rhinoplasty, we correlate imaging measurements, physical exam findings, and symptom scores to refine indications for surgical intervention. Enhanced pre-operative valve assessment facilitates targeted grafting, improves surgical outcomes and reduces revision rates.