PURPOSE: Central airway stenosis can be benign or malignant, fixed or dynamic. Fixed lesions can be caused by exophyitic intraluminal obstruction, airway strictures, extrinsic compression or mixed lesions. Patients with benign airway strictures present with various symptoms, etiologies, morphologic types, extent and severity of airway narrowing. We describe a classification system that can be used by health care providers to objectively evaluate patients before and after therapy.
METHODS: FEMOS system contains descriptive parameters: Morphology and Origin of the abnormality and quantitative parameters: Functional status, Extent and Severity of airway stenosis as identified on bronchoscopy (Table). Patients with benign airway strictures diagnosed bronchoscopically were assessed by applying FEMOS system before and after therapeutic interventions.
RESULTS: Impact of using this multidimensional system in 12 cases will be demonstrated. For illustrative purposes, 3 cases are demonstrated in different settings: Patient 1 was treated by tracheal sleeve resection, patient 2 by stent insertion and patient 3 by rigid bronchoscopic dilation and laser. FEMOS characterized the morphologic and etiologic types of airway strictures and the patients’ functional class, extent and severity of the strictures (Figure).
CONCLUSION: FEMOS identifies the morphologies and etiologies of benign central airway strictures and allows objective stratification of patients according to the degree of functional impairment, extent and severity of airway stenosis.
CLINICAL IMPLICATIONS: FEMOS offers a common language to objectively characterize benign airway strictures.
DISCLOSURE: Septimiu Murgu, No Financial Disclosure Information; No Product/Research Disclosure Information