Search Result For 'ABSTRACT: Background: Interstitial lung diseases (ILD) are a group of diffuse parenchymal lung disorders associated with cough, dyspnea, hypoxemia and restrictive pulmonary function. Vertigo and dizziness are early symptoms of cerebral hypoxia Aim: The aim of this study was to assess the effect of hypoxia and chronic cough in patients with ILD on central and peripheral vestibular functions. Method: A cross sectional study was conducted in Audio-vestibular unit, ENT Department and Chest Department, Zagazig University Hospitals. Sixty two patients diagnosed to have ILD were included. Full VNG test battery was done. Results: There was statistical significance decrease in mean of optokinetic speed and smooth pursuit gain at high frequency (0.6) in both Rt ' , Result Number : 1