A man who went in for a routine knee surgery needed ... On the same day, vascular surgeon Dr Samuel Chen performed a procedure to restore blood flow to the lower part of the leg.

A vascular surgeon, however, performed a third surgery to try and save the leg and found no clot but that the artery had been severed in the first surgery. Ultimately, the 58-year-old lost much of ...

The man who entered UCI's hospital in Orange for outpatient knee surgery ... lawsuit. Vascular surgeon Samuel Chen then performed the angiogram, and blood flow was restored to the leg.

May-Thurner Syndrome is a rare vascular condition where an artery compresses the left iliac vein in the pelvis blocking off blood flow from the leg back to the heart, according to UPMC.