What's next after the clot? Residual pulmonary vascular obstruction after pulmonary embolism: From imaging finding to clinical consequences.

Abstract:

:Surviving an embolism exposes patients to potential long-term complications, such as altered quality of life, persistent dyspnea, impaired exercise capacity or pulmonary hypertension. The common objective factor in most of these situations is the presence of residual pulmonary vascular obstruction (RPVO). Planar ventilation/perfusion scintigraphy (V/Q lung scan) is the gold standard for assessing RPVO, which occurs in 46 to 66% of patients at 3 months and persists in 25 to 29% of patients a year after acute PE. Assessed early (i.e. before discharge), RPVO could predict acute PE development with a high negative predictive value. Evaluated after anticoagulation therapy, RPVO could help to manage anticoagulation treatment and predict the risk of PE recurrence and patients identified at risk of developing chronic thromboembolic pulmonary hypertension. In this comprehensive review, we provide an overview of the current knowledge of RPVO after PE from imaging diagnosis to clinical consequences. In the first part, we mainly focus on the imaging modalities capable of detecting and quantifying RPVO. We then focus on the symptoms and syndromes linked with this residual obstruction after PE. Although the occurrence of RPVO and long-term complications varies greatly from one patient to another, we finally aim to identify the patients and diseases at risk of developing residual obstruction.

journal_name

Thromb Res

journal_title

Thrombosis research

authors

Bonnefoy PB,Margelidon-Cozzolino V,Catella-Chatron J,Ayoub E,Guichard JB,Murgier M,Bertoletti L

doi

10.1016/j.thromres.2019.09.038

subject

Has Abstract

pub_date

2019-12-01 00:00:00

pages

67-76

eissn

0049-3848

issn

1879-2472

pii

S0049-3848(19)30441-4

journal_volume

184

pub_type

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