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  • Title: Percutaneous transthoracic embolisation for massive haemoptysis secondary to peripheral pulmonary artery pseudoaneurysms.
    Author: Lal A, Bansal A, Chaluvashetty SB, Sandhu MS, Gorsi U.
    Journal: Eur Radiol; 2021 Apr; 31(4):2183-2190. PubMed ID: 33011878.
    Abstract:
    OBJECTIVE: Pulmonary artery pseudoaneurysms (PAPs) are rare, but important and treatable cause of massive haemoptysis. Minimal data exists on their interventional radiology management due to their rarity, especially direct percutaneous injection. Here, we report our experience of direct percutaneous management of such pseudoaneurysms. METHODS: Data of patients presenting to our department from January 2014 to November 2019 was retrospectively analysed, who presented with massive haemoptysis, and CT angiography positive for pulmonary artery pseudoaneurysms. Only patients treated with direct percutaneous intervention were included. Twelve patients who were managed endovascularly were excluded from the study. Observations were tabulated under age, sex, underlying pathology, lobe involved, number and size of the pseudoaneurysm, imaging guidance and embolising agent. Technical and clinical success and complications were then analysed. RESULTS: Twenty-nine pseudoaneurysms were treated in 27 patients with a mean age of 41.4 years. The most common underlying aetiology was tuberculosis (85.1%), with the most common location being bilateral upper lobes (31% each). CT guidance was the most frequently used imaging guidance (26/29). N-butyl cyanoacrylate (NBCA) glue mixture was used in 79.3% and reconstituted thrombin in the remaining 20.7% pseudoaneurysms. Complete technical and clinical success rates were 93.1% and 88.9% respectively. No major complications were seen except for development of significant pneumothorax in one patient. CONCLUSION: Pulmonary pseudoaneurysms are rare but fatal cause for massive haemoptysis. Interventional radiology management via direct percutaneous embolisation is a safe and minimally invasive treatment measure in selective patients, with successful outcomes and minimal complication and recurrence rates. KEY POINTS: • Pulmonary artery pseudoaneurysms are rare but important and treatable cause of massive haemoptysis. • This study shows the advantages of percutaneous management of these pseudoaneurysms as an alternate to endovascular embolisation, in case endovascular embolisation is not feasible or practical. • It is a safe and minimally invasive treatment, with technical success of 93.1% and clinical success of 88.9% in this study.
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