| Mid-Term Results of the Use of
Radial Artery Graft for Coronary Artery Bypass (Radial Artery
Graft Versus Saphenous Vein Graft) |
| Ryusuke Suzuki |
Satoshi Kamata |
Katsuhiko Kasahara |
| Jiro Honda |
Toshiya Koyanagi |
Hitoshi Kasegawa |
| Takao Ida |
Mitsuhiko Kawase |
|
(Department of Cardiovascular Surgery, Sakakibara
Heart Institute, Tokyo, Japan)
|
The use of the radial artery (RA)
for coronary artery bypass grafting (CABG) is increasing. This
study describes mid-term results of the use of RA for CABG. Between
March 1996 and March 1999, we performed 134 CABGs using RA or
saphenous vein graft (SVG) for the left circumflex branch area
or diagonal branch area. The mean age was 62.6±9.6 years in the
RA group and 65.0±7.8 years in the SVG group. The average number
of anastomoses was 2.7 per patient. RA was anastomosed with the
postero-lateral branch (PL) in 69 cases, with the obtuse marginal
branch (OM) in 29 cases and with the diagonal branch (DB) in
10 cases. SVG was anastomosed with PL in 26 cases, with OM in
14 cases and with DB in 2 cases. The proximal anastomosis was
made with the ascending aorta in all cases. No sequential bypass
anastomosis was used in any case. The early patency rate of the
grafts was 97.9% (93/95) in RA and 91.7% (33/36) in SVG. The
clinically negative rate in the treadmill test (TMT) performed
later was 99.0% (102/103) in RA and 90.9% (30/33) in SVG. The
late patency rate of the grafts was 92.9% (13/14) in RA and 50.0%
(3/6) in SVG. Perioperative death occurred in 5 cases. Late cardiac
death occurred in 2 cases (0.02%) of the RA group and 1 case
(0.03%) of the SVG group. The 3 year-survival rate free of cardiac
events was 92.8% in the RA group and 80.9% in the SVG group.
The use of RA for CABGs is not only effective for myocardial
revascularization, but also can be expected to bring about good
patency as a late result.
Jpn. J. Cardiovasc. Surg. 31: 120-123 (2002) |
|
