[Percutaneous transluminal angioplasty for stenosis of coronary artery bypass grafts: a comparison of arterial grafts versus vein grafts with regard to restenosis and re-do CABG].
Stenoses of ten arterial grafts and thirty-four venous grafts from previous coronary artery bypass grafting (CABG) were treated with percutaneous transluminal angioplasty. In all ten arterial grafts, stenosis occurred at the distal coronary anastomotic site (A-d). In vein grafts, stenosis occurred at the proximal aortic anastomotic site (V-p) in 10, at the graft body (V-b) in 9 and the distal coronary anastomotic site (V-d) in 10 vessels. The initial success rates of angioplasty were 89% (A-d), 100% (V-p), 89% (V-b) and 100% (V-d). The time period between CABG and angioplasty was significantly shorter for A-d (4 +/- 3.8 months) and V-d (8.1 +/- 9.9 months) groups than for V-p (56.9 +/- 35.7 months) or V-b (45.9 +/- 48.6 months) groups. The restenosis rates following angioplasty were 0% (A-d), 50% (V-p), 50% (V-b) and 0% (V-d). Repeat CABG surgery was required for restenosis in 2 patients of group V-p and V-b. Our experience suggests that angioplasty can be performed with a high success rate for stenosis at the distal anastomosis of either arterial or vein grafts after CABG.
Kawata
T
T
Department of Surgery III, Nara Medical College, Japan.
Hasegawa
J
J
Yoshida
Y
Y
Nakayama
Y
Y
Kawachi
K
K
Kitamura
S
S
D000714:Anastomosis, Surgical; D015906:Angioplasty, Balloon, Coronary; D001158:Arteries / Q000637:transplantation; D003251:Constriction, Pathologic; D001026:Coronary Artery Bypass / Q000379:methods*; D003327:Coronary Disease / Q000601:surgery / Q000628:therapy*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012008:Recurrence; D014680:Veins / Q000637:transplantation