Table II.
Outcome and timing of in-hospital, post discharge and 30-day events of 35,916 patients undergoing carotid endarterectomy
| All patients | Time to event, days | In-hospital event rate | Post discharge event rate | 30-Day event rate | Proportion of events that occurred after discharge |
|
|---|---|---|---|---|---|---|
| Median, IQR | Mean ± SD | N (%) | N (%) | N (%) | ||
| Stroke | 1, 6 | 4.5 ± 6.6 | 396 (1.1) | 195 (0.5) | 591 (1.6) | 33% |
| Death | 8.5, 14 | 11.2 ± 8.6 | 128 (0.4) | 144 (0.4) | 272 (0.8) | 53% |
| Cardiac event | NA | NA | 238 (0.7) | 112 (0.3) | 350 (1.0) | 32% |
| Stroke/Death | NA | NA | 480 (1.3) | 320 (0.9) a | 794 (2.2) | 40% |
| Stroke/Death/Cardiac event | NA | NA | 656 (1.8) | 399 (1.1) b | 1043 (2.9) | 38% |
| Patients with a prior neurological event | ||||||
| Stroke | 2, 6 | 4.6 ± 6.4 | 249 (1.6) | 127 (0.8) | 376 (2.4) | 34% |
| Death | 9, 15 | 11.8 ± 8.7 | 81 (0.5) | 86 (0.5) | 167 (1.1) | 52% |
| Cardiac event | NA | NA | 126 (0.8) | 56 (0.4) | 182 (1.1) | 31% |
| Stroke/Death | NA | NA | 302 (1.9) | 201 (1.3) | 497 (3.1) | 40% |
| Stroke/Death/Cardiac event | NA | NA | 387 (2.4) | 238 (1.5) | 616 (3.9) | 39% |
| Asymptomatic patients | ||||||
| Stroke | 1, 6 | 4.5 ± 6.9 | 147 (0.7) | 68 (0.3) | 215 (1.1) | 32% |
| Death | 8, 8 | 10.5 ±8.2 | 47 (0.2) | 58 (0.3) | 105 (0.5) | 55% |
| Cardiac event | NA | NA | 112 (0.6) | 56 (0.3) | 168 (0.8) | 33% |
| Stroke/Death | NA | NA | 178 (0.9) | 119 (0.6) | 297 (1.5) | 40% |
| Stroke/Death/Cardiac event | NA | NA | 269 (1.3) | 161 (0.8) | 427 (2.1) | 38% |
IQR, Interquartile range, SD, Standard deviation, N, Number of patients experiencing the events, Na, data not available
a
6 patient died post discharge after having an in-hospital stroke
b
12 patients experienced a secondary post discharge event, after having an in-hospital stroke (N=6) or cardiac event (N=6)