[Off-pump coronary artery bypass grafting: comparison between standard CABG and off-pump CABG].
We have performed 321 cases of coronary artery bypass grafting (CABG), between October 15 1995 and November 20 2000. We have evaluated the operative results of 142 cases (44.2%) of conventional CABG and 179 cases (55.8%) of off-pump CABG performed during this period. The average numbers of bypassed grafts was 3.53 for conventional CABG, and 1.62 for off-pump CABG. The total number of 369 grafts were anastomosed to 501 coronary arteries for conventional CABG, and 283 grafts were anastomosed to 290 coronary arteries for off-pump CABG.


RESULTS
Although two saphenous veins were occluded, the early postoperative patency rate was 100% for conventional CABG using RITA, LITA, GEA and RA. Three site of stenosis in 18 LITAs and 2 in 16 RITAs were recognized in off-pump CABG without the use of stabilizers. One site of stenosis in 130 LITAs and 3 string signs in 44 GEA were recognized in off-pump CABG with the use of stabilizers. Postoperative angiography in 52 off-pump CABG cases at one year later showed no new lesion.


CONCLUSIONS
The use of stabilizers and LIMA suture enables adaptation of the MIDCAB procedure to a wider range of coronary artery bypass procedures, and a higher graft patency can be expected.
Takahashi
K
K
Department of Cardiovascular Surgery, Aomori Rousai Hospital, Hachinohe, Japan.
Minagawa
M
M
Oikawa
S
S
Hatakeyama
M
M
Kondo
N
N
Kuga
T
T
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001026:Coronary Artery Bypass / Q000379:methods* / Q000706:statistics & numerical data; D003327:Coronary Disease / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D019060:Minimally Invasive Surgical Procedures / Q000379:methods* / Q000706:statistics & numerical data; D014654:Vascular Patency