Relative Risk of Ipsilateral Hemispheric Stroke (HS) From Asymptomatic Carotid Artery Stenosis (ACS) After Coronary Artery Bypass Grafting (CABG) for 5 Prospective Natural History Studies
| Study | No. of patients | ACS | HS | Relative risk |
|---|---|---|---|---|
| No. (%) | No. (%) | |||
| Turnipseed et al, 1980 (21) | 170 | 14 (8.2) | 2 (0.5) | 0 |
| Breslau et al, 1981 (19) | 78 | 5 (6.4) | 1 (1.3) | 0 |
| Barnes et al, 1981 (18) | 324 | 40 (12.4) | 3 (0.9) | 3.6* |
| Gerraty et al, 1992 (22) | 213 | ? ? | 2 (0.9) | 0 |
| Schwartz et al, 1995 (20) | 582 | 130 (22) | 7 (1.2) | 8.7† |