What is recommended for strengthening, re-growing arteries, besides angioplasty?

VA Vascular Surgeon says angioplasties should never have been done on my husband's leg arteries, as they are "moth eaten" as viewed by a full day scan. New Cardiologist wants to do more angioplasties on husband's legs, with possibility of stents. Husband suffered exposure to Agent Orange in Vietnam, now 75, two months ago suffered A-Fib. No blockages in arteries to heart, but terribly weak on new meds. Heart is still irregular. VA doctor said one artery missing in right calf, two arteries missing in left calf and iliac arteries leading to groin totally missing.