Right Carotid Artery Origin Compression Caused by Endovascular Repair for Kommerell Diverticulum Associated with a Right-Sided Aortic Arch.

Owing to the unique anatomical features, the endovascular repair for Kommerell diverticulum poses a surgical challenge. An 80-year-old, asymptomatic female with Kommerell diverticulum and associated right-sided aortic arch underwent an endovascular repair, consisting of an aortic arch endografting with a proximal extension, axillo-axillary crossover bypass, and right subclavian parallel endografting. An additional stent was promptly placed retrogradely at the right carotid artery origin as the completion aortography revealed an ostial occlusion. During the 6th month follow-up, she remained well without any neurological deficits. This report elucidated the disease-specific and procedure-related causes leading to right carotid artery ostium occlusion.