Severe Tricuspid Regurgitation Secondary to Subclavian Vein Stent Migration

Abstract

We present the first case of a posttraumatic pseudoaneurysm of the axillary artery successfully treated with a stentgraft.A 89-year-old woman with a conservatively treated subcapital humeral fracture developed a pseudoaneurysm of the left axillary artery which was percutaneously successfully treated with a stentgraft. Endovascular repair of a traumatic axillary artery pseudoaneurysm should be considered especially in unfit patients.

Endovascular Stent Migration to the Right Ventricle Causing Myocardial Injury

“…Migrated stents have been reported in the pulmonary artery (4,7), right atrium (8), and right ventricle (9). Most of the patients were asymptomatic, but some developed severe complications, such as pulmonary infarction (10), severe tricuspid regurgitation (6,9), cardiogenic shock (11), and AMI (12)(13)(14). To our knowledge, this is the first published report of a subclavian vein stent migrating into the right heart with subsequent myocardial injury.…”

“…The stent may compromise the lumen of the vessel for which it was intended, providing a nidus for thrombus formation, which can lead to vessel occlusion. Causes of stent migration include poor insertion technique (too small stent, balloon rupture, or dislodged stent from the balloon) and excess mobility; for example, around the shoulder joint with the stent working its way loose (6). Migrated stents have been reported in the pulmonary artery (4,7), right atrium (8), and right ventricle (9).…”