From the Departments of Cardiology (R.D.P., M.S., A.R., K.F., N.S.) and Radiology (A.S.), Karolinska Institutet and Karolinska University Hospital, Stockholm 17176, Sweden.http://pubs.rsna.org/doi/abs/10.1148/radiol.16151619
Rodney De Palma, MB, BS, Magnus Settergren, MD, PhD, Andreas Rück, MD, PhD, Anders Svensson, MD, PhD, Kari Feldt, MD, Nawsad Saleh, MD, PhD
Collateral pathways in vascular disease are important natural “bypass” conduits that protect against ischemia. Endovascular diagnostic and therapeutic procedures via peripheral access sites are performed frequently. This case report underlines the importance of being aware of collateral circulation in patients with chronic aortoiliac occlusive disease undergoing subclavian transcatheter aortic valve implantation to avoid acute limb ischemia. © RSNA, 2016