Assuming most here are familiar with bypass surgery and its technique and most are familiar with cardiac catheterization and its techniqes i have this pic to share.
First a little history. This patient had coronary artery bypass grafting (CABG) in the past. Veins from the leg were used to 'bypass' blocked arteries in the patients heart. Just as native coronary arteries can develop blockage veins and arteries used to do the bypasses can develop blockages as well. If these veins and arteries develop blockages the same techniques are used in the cathlab to open them up, ballon angioplasty and stenting, as are used on native coronary arteries. The patient in question was in the cathlab to have a vein graft opened up. A stent was placed to open it. When the guide wire was being removed it became stuck to the stent. The cardiologist pulled and the wire snapped. Several attempts were made at retrieval of the wire but all were un-successful.
Eventually the patient was brought into surgery. The picture below is the vein graft opened up. Easily visible is the mesh stent and broken catheter wire.[IMG]http://[/IMG] [IMG]