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Updated: Mar 31, 2026

A Porcine Model of Acute Autologous Pulmonary Embolism
Published on: September 6, 2024
Embolisation of an iatrogenic pulmonary artery pseudoaneurysm
Matthew G Petersen1, Katelyn Brinegar2, Rahmi Oklu3
1University of Utah, Salt Lake City, Utah, USA.
Abstract:
A 62-year-old woman with idiopathic cardiomyopathy and class IIIB/stage C heart failure sustained right pulmonary artery injury from a Swan-Ganz catheter during a pretransplant work up. Postprocedure, it was noted that the patient's segmental pulmonary artery catheter was wedged for an unclear period of time. The patient developed a small volume of blood-tinged sputum and a chest CT revealed a 1.3 cm pseudoaneurysm in the right middle lobe medial segment pulmonary artery and a small area of haemorrhage. The patient underwent pulmonary artery preserving coil embolisation of the pseudoaneurysm to prevent further right heart strain, given an ejection fraction of 20%, which resolved haemoptysis. Imaging studies showed preserved distal outflow and no evidence of residual pseudoaneurysm filling.
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