Cardiologist is recommending graft and bypass surgery

I am 56 yrs old and recently had a cat scan cardiac scoring; a carotid duplex ultrasound; an aortic ultrasound; and a ankle brachial index (abi).  All of the results showed significant calcium buildup in arteries of the abdomen, leg and carotid arteries.

When I go to the interventionalist cardiologist in a week they are already suggesting that surgery will be required to clean out the arteries in multiple places.

From what I have read on webmd, any and all surgery options only have a success rate of 50 to 80% before occlusion (closure) occurs again because of the graft or bypass.

Are there any other non-surgical interventions that are best for claudication in my leg?  

How safe is any surgery?

[ed34]

I was under the impression that most interventions to leg arteries involved using Angioplasty, in particular, cutting tools or lasers. The risk with any intervention or surgery in my opinion these days should be based more on the possibility of infection. With Anti-Biotics having far less effect now, I will certainly be thinking about risks very carefully before accepting any form of surgery. Obviously Angioplasty only involves a very small incision to the leg, whereas bypass requires much more for harvesting and grafting.