The aim of this study was to determine the added value of measuring the forced expiratory
flow at 25–75% of forced vital capacity (FVC) (FEF 25–75% ) and flow when 75% of FVC has …

Coronavirus disease 2019 (COVID-19) has negatively affected the delivery of respiratory
diagnostic services across the world due to the potential risk of disease transmission during …

The aim of this study was to determine the diagnostic and interpretative consequences of
adopting the Global Lungs Initiative (GLI) 2012 spirometric prediction equations. We assessed …

The objective of this study was to redesign the current grading of obstructive lung disease
so that it is clinically relevant and free of biases related to age, height, sex and ethnic group. …

Highlights The working group of the Polish Respiratory Society (PTChP) developed guidelines
for diagnosis and treatment of PF-ILD. What are the main findings? A multidisciplinary …

Sarcoidosis is a systemic granulomatous disease with predominant manifestation in the
lungs, often presenting as interstitial lung disease. Pulmonary function abnormalities in …

Introduction: This document presents the guidelines of the Polish Respiratory Society (PTChP,
Polskie Towarzystwo Chorób Płuc) for diagnosis and treatment of idiopathic pulmonary …

Background Sarcoidosis is a systemic granulomatous multiorgan disease with the most common
manifestation is in the chest, although the granulomas can also involve all other organs …

Cardiac sarcoidosis (CS) is a life-threatening and underdiagnosed manifestation of the
disease, which requires a complicated and expensive diagnostic pathway. There is a need for …

COPD is a complex, heterogeneous condition. Even in the early clinical stages, COPD
carries a significant burden, with breathlessness frequently leading to a reduction in exercise …