Repeat coronary artery bypass grafting

Third-time coronary artery bypass grafting

BACKGROUND

In this study we analyze the short- and long-term results, and the clinical, functional, and subjective status of patients after a second coronary reoperation (RE-RE-CABG).

METHODS

The perioperative data of 33 consecutive patients undergoing RE-RE-CABG (1987 to 1998) were studied. Follow-up information was obtained from our follow-up databank. A cross-sectional follow-up was conducted, with additional functional evaluation by the Duke Activity Status Index (DASI), and patients' evaluations of their life situation were registered.

RESULTS

Perioperative mortality was 2 of 33 patients (6%). During the follow-up (mean 51.6 months) 5 patients died. The 26 survivors showed a significant decrease in New York Heart Association class from 3.6+/-0.4 preoperatively versus 2.2+/-0.6 postoperatively. The mean Duke Activity Status Index score was 29.30+/-16.34 (range 7.22 to 48.9). In all, 18 of 26 patients (70%) were declared to have benefitted from the RE-RECABG.

CONCLUSIONS

The significant improve in New York Heart Association class and good postoperative functional capacity, justified the RE-RE-CABG. However, patients must be informed about the limitations of this procedure.

Early results with bilateral internal mammary artery grafting in coronary reoperations

In recent years, use of the internal mammary artery (IMA) as first graft of choice has been expanded with bilateral and sequential grafts in primary myocardial revascularization. The use of bilateral IMA grafts in reoperation has seldom been reported. The experience and early results with bilateral IMA grafting in 47 patients undergoing coronary reoperation are described. Hospital mortality was 6.3%. Four patients had postoperative signs of low cardiac output, and 4 had a perioperative myocardial infarction. At follow-up (18 +/- 18 months), 2 cardiac-related, late deaths were noted. Thirteen patients (29%) improved 1 New York Heart Association class, and 28 (63%) improved > 1 class. In 1 of 44 surviving patients, operation did not result in a decrease in angina. On the basis of the early results, the bilateral use of the IMA in coronary reoperation appears justified.