Table 4 Distribution of preoperative risk factors between elderly patients in OPCAB and CPB groups.
| Author, reference (year) | Male sex | Hypertension | Diabetes | Unstable angina | Ejection fraction | Urgent/emergency surgery | COPD | CVD | PVD | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OPCAB | CPB | OPCAB | CPB | OPCAB | CPB | OPCAB | CPB | OPCAB | CPB | OPCAB | CPB | OPCAB | CPB | OPCAB | CPB | OPCAB | CPB | |
| Ricci15 (2001) | ND | ND | ND | ND | 101 | 313 | ND | ND | ND | ND | ND | ND | 141 | 373 | 153 | 453 | 94 | 271 |
| Meharwal16 2002 | 156 | 342 | 75 | 159 | 47 | 94 | 67 | 132 | 23* | 66* | 15 | 32 | 30 | 70 | 6 | 8 | 14 | 34 |
| Hirose17 (2001) | 60 | 54 | 65 | 45 | 40 | 28 | 23 | 7 | 7† | 7† | 11 | 7 | 6 | 3 | 24 | 10 | 4 | 6 |
| Al‐Ruzzeh18 (2001) | 44 | 64 | 24 | 46 | 13 | 11 | 28 | 40 | 29‡ | 40‡ | 20 | 32 | ND | ND | 4 | 5 | 2 | 10 |
| Koutlas19 (2000) | 30 | 114 | 42 | 163 | 13 | 66 | ND | ND | 53.9§ | 18.7§ | 36 | 172 | 6 | 18 | 6 | 24 | ND | ND |
| Demaria20 (2002) | ND | ND | ND | ND | ND | ND | 56 | 59 | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND |
| Beauford8 (2003) | 67 | 18 | 92 | 24 | 39 | 12 | ND | ND | 51§ | 49§ | 92 | 18 | ND | ND | 12 | 4 | ND | ND |
| Hoff21 (2002) | 31 | 92 | ND | ND | 18 | 39 | ND | ND | 4* | 8* | ND | ND | 10 | 20 | 6 | 14 | ND | ND |
| Lin9 (2003) | 13 | 8 | 10 | 7 | 6 | 3 | ND | ND | 53.4§ | 42§ | 4 | 3 | 2 | 1 | ND | ND | ND | ND |
| Boyd22 (1999) | 16 | 36 | ND | ND | 4 | 16 | ND | ND | 4† | 2† | 19 | 17 | ND | ND | 3 | 8 | 3 | 10 |
| Ascione23 (2002) | 163 | 558 | 133 | 483 | 28 | 112 | 94 | 398 | ND | ND | 139 | 466 | ND | ND | 35 | 81 | ND | ND |
| D'Alfonso10 (2004) | 49 | 24 | 41 | 17 | 19 | 10 | 23 | 14 | 7¶ | 0¶ | ND | ND | 7 | 1 | 7 | 4 | 6 | 3 |
| Shimokawa11 (2003) | 15 | 10 | 22 | 15 | 8 | 4 | ND | ND | 3† | 5† | 8 | 10 | 6 | 3 | 15 | 9 | 6 | 5 |
| Deuse12 (2003) | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND |
*Ejection fraction ⩽30%; †ejection fraction <40%; ‡ejection fraction <50%; §mean ejection fraction%; ¶ejection fraction <35%.
COPD, chronic obstructive pulmonary disease; CPB, cardiopulmonary bypass; CVD, cardiovascular disease; ND, not documented; OPCAB, off‐pump coronary artery bypass; PVD, peripheral vascular disease.