Abstract
The aim of this study was to determine diagnostic value of an algorithm for restrictive ventilation disorders recommended by the American Thoracic and European Respiratory Society. Methods. We analyzed pulmonary function tests of 148 patients with interstitial lung disease with increased lung elasticity and without airways obstruction. A specific type of restrictive disorders referred to as «non-classic», because it does not match existing diagnostic criteria, was observed in most patients (n = 86). The recommended diagnostic algorithm had low sensitivity (0.42) mainly due to a low informative value of spirometry (VC was within a normal range in 80% of patients with non-classic restrictive pattern).
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