Most frequently used CABG indications by appropriateness category
| Indication | n | Appropriateness rating |
|---|---|---|
| Necessary | ||
| Severe chronic stable angina (class III/IV) treated with less than “optimal” medical therapy, three vessel disease with a type C lesion, an ejection fraction > 20%, in a patient with a low to moderate operative risk | 178 | 8 |
| Severe chronic stable angina (class III/IV) treated with less than “optimal” medical therapy, left main coronary artery disease, with an ejection fraction > 20%, in a patient with a low to moderate operative risk | 115 | 9 |
| Mild or moderate angina chronic stable angina (class I/II) treated with less than “optimal” medical therapy, with three vessel disease with a type C lesion, with an ejection fraction > 20%, in a patient who has a low to moderate operative risk | 107 | 7 |
| Appropriate | ||
| Patient has continuing pain between 1 and 21 days after an acute myocardial infarction while treated with less than “optimal” medical therapy, three vessel disease with a type C lesion, an ejection fraction > 20%, in a patient with a low to moderate operative risk | 5 | 7 |
| Uncertain | ||
| Severe chronic stable angina (class III/IV) treated with less than “optimal” medical therapy, with two vessel non-proximal left anterior descending artery disease with a type C lesion, in a patient with a very positive stress test, an ejection fraction > 20%, who has a low to moderate operative risk | 27 | 5.5 |
| Mild or moderate angina chronic stable angina (class I/II) treated with less than “optimal” medical therapy, with two vessel non-proximal left anterior descending artery disease with a type C lesion, in a patient with a very positive stress test, an ejection fraction > 20%, who has a low to moderate operative risk | 20 | 5 |
| Inappropriate | ||
| Chronic stable angina without “significant” coronary artery disease3-150 | 21 | 1 |
| Mild or moderate angina chronic stable angina (class I/II) treated with less than “optimal” medical therapy, with two vessel non-proximal left anterior descending artery disease with a type A or B lesion, in a patient with a very positive stress test, an ejection fraction > 20%, who has a low to moderate operative risk | 10 | 3 |
↵3-150 The expert panel judged any revascularisation procedure in patients without “significant” coronary artery disease as inappropriate without further classification of symptoms