Published: 21 December 2022

Authors: Anna C. Mavromanoli, Stefano Barco, Walter Ageno, Hélène Bouvaist, Marianne Brodmann, Claudio Cuccia, Francis Couturaud, Claudia Dellas, Konstantinos Dimopoulos, Daniel Duerschmied, Klaus Empen, Pompilio Faggiano, Emile Ferrari, Nazzareno Galiè, Marcello Galvani, Alexandre Ghuysen, George Giannakoulas, Menno V. Huisman, David Jiménez, Matija Kozak, Irene M. Lang, Nicolas Meneveau, Thomas Münzel, Massimiliano Palazzini, The PEITHO-2 Investigators

Source: This abstract has been sourced from NZ Respiratory Research Review Issue 207



    Right ventricular (RV) function plays a critical role in the pathophysiology and acute prognosis of pulmonary embolism (PE). We analyzed the temporal changes of RV function in the cohort of a prospective multicentre study investigating if an early switch to oral anticoagulation in patients with intermediate-risk PE is effective and safe.


    Echocardiographic and laboratory examinations were performed at baseline (PE diagnosis), 6 days and 6 months. Echocardiographic parameters were classified into categories representing RV size, RV free wall/tricuspid annulus motion, RV pressure overload and right atrial (RA)/central venous pressure.


    RV dysfunction based on any abnormal echocardiographic parameter was present in 84% of patients at baseline. RV dilatation was the most frequently abnormal finding (40.6%), followed by increased RA/central venous pressure (34.6%), RV pressure overload (32.1%), and reduced RV free wall/tricuspid annulus motion (20.9%). As early as day 6, RV size remained normal or improved in 260 patients (64.7%), RV free wall/tricuspid annulus motion in 301 (74.9%), RV pressure overload in 297 (73.9%), and RA/central venous pressure in 254 (63.2%). At day 180, the frequencies slightly increased. The median NT-proBNP level decreased from 1448 pg/ml at baseline to 256.5 on day 6 and 127 on day 180.


    In the majority of patients with acute intermediate-risk PE switched early to a direct oral anticoagulant, echocardiographic parameters of RV function normalised within 6 days and remained normal throughout the first 6 months. Almost one in four patients, however, continued to have evidence of RV dysfunction over the long term.

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