Fibromuscular dysplasia (FMD) is a collection of vascular diseases that affects the three layers of the arterial vessel wall, and its cause is still unknown. FMD accounts for <10% of cases of renal artery stenosis. FMD affects mainly younger women, is located at the distal half of the renal artery trunk or the side branches, and has a beaded, aneurysm-like appearance on angiography.1
The standard treatment for FMD is percutaneous transluminal angioplasty (PTA), but in the Case Files by Dr. George column in the May issue of VDM, Harit Desai, DO, David Hsi, MD, and Jon C. George, MD, present a case of FMD treated successfully with cryoplasty. Cryoplasty is intended to reduce vessel injury, elastic recoil, neointimal hyperplasia, constrictive remodeling, and the need for stent implantation. A specially designed PTA balloon applies cold thermal energy while dilating the plaque and the vessel wall.
Read “Treatment of Fibromuscular Dysplasia of the Renal Artery With Cryoplasty” for description and results of this case.
1. Zeller T, Rastan A, Noory E. Renal artery intervention — endovascular techniques. Vasc Dis Manag. 2011;8(2):E-21-E27.