Purpose
To describe an entirely percutaneous treatment for carotid artery stenting in
a type IIa aortic arch via the superficial temporal artery (STA) for
through-and-through guidewire access.
Technique
The technique is demonstrated in an 83-year-old man status post left carotid
endarterectomy 3 months prior who presented with 2.5 hours of confusion and
dysphasia following diagnostic carotid arteriography. The patient was known
to have a type IIa bovine aortic arch and a severe 70% stenosis of
the left internal carotid artery. The patient was referred for carotid
artery stenting by his vascular surgeon. Due to the bovine arch, a
percutaneous ultrasound-guided approach via the STA for through-and-through
wire access facilitated carotid artery stenting from the right common
femoral artery. The procedure was successful, and follow-up duplex
ultrasound confirmed patency of the STA the next day.
Conclusion
A percutaneous ultrasound-guided STA access can help facilitate transfemoral
carotid artery stenting in an otherwise difficult type IIa aortic arch
setting.