Table 1. Yearly number of CABG (by procedure-base) in 2017 and 2018 from two different data sources.
| 2018 (data from JCVSD) | 2017 (from questionnaire by JACAS)* | |||||
|---|---|---|---|---|---|---|
| Total | Initial elective | Non-elective | Total | Initial elective | Non-elective | |
| Yearly CABG cases | 20,271 | 12,584 | ||||
| Isolated CABG | 13390 (66%) | 10847 | 2543 | 8497 (68%) | 7144 | 1353 |
| OPCAB | 6069 (56%) | 1178 (46%) | 4562 (64%) | 646 (48%) | ||
| ONCAB | 4778 (44%) | 1365 (54%) | ||||
| Concomitant CABG** | 6881 (34%) | 4087 (32%) | ||||
*Questionnaire collection rate = 62%. **Concomitant CABG: CABG cases with valve, aorta, other cardiac, or other non-cardiac as defined by National Clinical Database
CABG: coronary artery bypass grafting; JCVSD: Japan Adult Cardiovascular Surgery Database; JACAS: Japanese Association for Coronary Artery Surgery; OPCAB: off-pump coronary artery bypass; ONCAB: on-pump coronary artery bypass