Background
Flexible bronchoscopy is widely used for the evaluation of intrathoracic airway and pulmonary diseases. However, its diagnostic utility in detecting upper airway abnormalities, including lesions of the oral cavity, larynx, and vocal cords, ...
Background
Flexible bronchoscopy is widely used for the evaluation of intrathoracic airway and pulmonary diseases. However, its diagnostic utility in detecting upper airway abnormalities, including lesions of the oral cavity, larynx, and vocal cords, remains insufficiently explored. This study aimed to assess the clinical significance of flexible bronchoscopy in identifying upper airway abnormalities using real-world clinical data.
Methods
This retrospective observational study included patients who underwent flexible bronchoscopy at a tertiary referral center between March 2019 and December 2023. Patients with abnormal upper airway findings were referred for further otolaryngological evaluation. Clinical characteristics, bronchoscopic findings, and diagnostic outcomes were analyzed. Multivariate logistic regression analysis was performed to identify factors associated with abnormal findings.
Results
A total of 2229 patients were included in the analysis. Upper airway abnormalities were identified in 72 patients (3.2%). The presence of malignancy was significantly associated with a higher detection rate of abnormalities compared to benign disease. Multivariate analysis revealed that male sex (odds ratio [OR] 2.069, p = 0.017), age 〈74 years (OR 2.404, p = 0.009), and malignancy (OR 3.030, p 〈 0.001) were independent predictors of abnormal findings. Operator experience was not significantly associated with diagnostic yield.
Conclusion
Flexible bronchoscopy provides additional diagnostic value in detecting upper airway abnormalities, even when performed for lower respiratory tract evaluation. Routine and systematic inspection of the upper airway during bronchoscopy may facilitate early detection of clinically significant lesions, particularly in patients with malignancy. Further prospective studies are warranted to validate these findings.