Published online Dec 31, 2011.
https://doi.org/10.3348/jksr.2011.65.6.573
Endovascular Thrombin Injection for a Pulmonary Artery Pseudoaneurysm: Case Report
Abstract
Massive hemoptysis caused by pulmonary artery pseudoaneurysms is uncommon, and endovascular treatment such as coil embolization is the first choice for treating pulmonary artery pseudoaneurysms. Various embolic agents could be used according to the angiographic findings, yet embolization with thrombin injection is very rare. Herein, we describe a case of a pulmonary artery pseudoaneurysm that was successfully treated by endovascular thrombin injection using a microcatheter because of the difficulty in performing a coil embolization due to a short feeding artery.
Fig. 1
B, C. Axial and coronal CT images obtained at 2 weeks follow-up show a markedly enlarged enhancing lesion at the origin of right pulmonary artery (arrows). D. Selective right pulmonary angiogram demonstrates approximately 2 cm pseudoaneurysm with a main draining vein. E. A main draining vein was embolized with two microcoils, then 1,000 IU thrombin was injected. F. Final pulmonary angiogram shows no visualization of the pseudoaneurysm. G. Follow-up CT 1 month after the procedure shows coils in the draining vein, with disappearance of pseudoaneurysm.
A 72-year-old woman with pulmonary artery pseudoaneurysm.
A. A contrast-enhanced chest CT scan shows a small enhancing lesion within the consolidative right middle lung (arrow).
References
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Vázquez V, Reus M, Piñero A, Abellán D, Canteras M, Espinosa de Rueda M, et al. Human thrombin for treatment of pseudoaneurysms: comparison of bovine and human thrombin sonogram-guided injection. AJR Am J Roentgenol 2005;184:1665–1671.
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