2025 Volume 54 Issue 4 Pages 191-194
An 81-year-old female underwent a medical examination, including thoracic computed tomography (CT). CT revealed a left internal mammary artery aneurysm (measuring 33 mm in diameter). She was referred to our department for further treatment. An initial attempt at coil embolization was made, but the guidewire became trapped within the mural thrombus of the aneurysm, preventing access to the outflow vessel. Consequently, the catheterization was abandoned. We then decided to perform a direct approach for IMA with the Chamberlain method, enabling successful coil embolization of the aneurysm's outflow vessel through a retrograde approach. The postoperative course was uneventful. Postoperative CT showed complete thrombosis and a reduction in aneurysm size. We propose that the Chamberlain method for direct access to the internal mammary artery is an effective and minimally invasive treatment option for elderly patients or those with limited operative tolerance in cases of internal mammary artery aneurysm, as it avoids the need for sternotomy or thoracotomy.
