Endovascular treatment of large posttraumatic false aneurysm of the S2 segment of the subclavian artery: clinical case and literature review

Abstract

Introduction. Pseudoaneurysms of the subclavian artery are a rare pathology and most frequently occur due to trauma. According to the current literature, subclavian artery aneurysms account for 1 % of all peripheral artery aneurysms. This pathology, although rare, may be accompanied by the risk of rupture, thrombosis, or distal embolism of the arterial lumen. Objective. To demonstrate a clinical case of a patient with successful treatment of subclavian artery pseudoaneurysm by means of modern minimally invasive endovascular technique. Material and methods. The article presents our clinical case with the use of endovascular technique for the treatment of large posttraumatic pseudoaneurysm of the S2 segment of the left subclavian artery using the Bard LifeStream balloon stent graft.Discussion. Currently, direct surgery is considered to be the gold standard of treatment in extracranial aneurysms. Meanwhile, availability of minimally invasive methods allows minimizing the risk by performing endovascular treatment and thus reducing the risk of foreign bodies and infectious complications associated with a large volume of surgical intervention in direct surgery, reducing damage to the brachial plexus, decreasing the number of beddays, and contributing to early rehabilitation measures. The strategy of choice in favor of endovascular treatment should be individual for each patient taking into account such factors as localization, aneurysm size, compression of nearby cranial nerves, and concomitant pathology with high risk of open surgical treatment. Conclusions. Careful selection of patients for endovascular technique will ensure good long-term outcome using all advantages of this technique. At present, it is still relevant and crucial to minimize complications and iatrogenic postoperative lesions in patients with this disease. For this reason, endovascular surgeries should be performed at the stage of specialized medical care by an experienced surgeon.Key words: subclavian artery, false aneurysm, posttraumatic aneurysm, stent graft, endovascular treatment, open surgery, minimally invasive surgery.