Fig. 2From: Weaning failure of cardiovascular origin: how to suspect, detect and treat—a review of the literatureWorkup to detect the cardiovascular origin of weaning failure: a general approach. COPD chronic obstructive pulmonary disease, SBT spontaneous breathing trial, ScvO2 central venous oxygen saturation, TP transpulmonary, PA pulmonary artery, Hb HemoglobinBack to article page