Table III.
Unadjusted event rates by procedure and presenting symptom type
| Thirty-day adverse event | CAS patients
|
P valuea | |||
|---|---|---|---|---|---|
| Symptom in last 12 months (mutually exclusive)
| |||||
| Stroke ipsilateral (n = 336) | TIA ipsilateral (n = 571) | TMB ipsilateral (n = 188) | ASX (n = 1787) | ||
| Death | 6.3% (21/336) | 1.1% (6/571) | 0.5% (1/188) | 1.3% (24/1787) | <.0001 |
| Stroke | 8.6% (29/336) | 7.9% (45/571) | 3.2% (6/188) | 3.2% (57/1787) | <.0001 |
| MI | 1.2% (4/336) | 1.2% (7/571) | 1.6% (3/188) | 1.1% (20/1787) | .8652 |
| Death + stroke + MI | 11.6% (39/336) | 9.6% (55/571) | 4.8% (9/188) | 4.9% (88/1787) | <.0001 |
| Death + stroke | 11.0% (37/336) | 8.4% (48/571) | 3.2% (6/188) | 4.3% (77/1787) | <.0001 |
| Thirty-day adverse event | CEA patients
|
P valuea | |||
|---|---|---|---|---|---|
| Symptom in last 12 months (mutually exclusive)
| |||||
| Stroke ipsilateral (n = 611) | TIA ipsilateral (n = 878) | TMB ipsilateral (n = 320) | ASX (n = 3949) | ||
| Death | 1.8% (11/611) | 0.8% (7/878) | 0.0% (0/320) | 0.8% (30/3949) | .0277 |
| Stroke | 4.6% (28/611) | 3.3% (29/878) | 1.6% (5/320) | 1.6% (64/3949) | <.0001 |
| MI | 0.8% (5/611) | 1.6% (14/878) | 0.9% (3/320) | 1.2% (49/3949) | .6213 |
| Death + stroke + MI | 6.7% (41/611) | 5.0% (44/878) | 2.5% (8/320) | 3.1% (124/3949) | <.0001 |
| Death + stroke | 6.2% (38/611) | 4.0% (35/878) | 1.6% (5/320) | 2.2% (87/3949) | <.0001 |
ASX, Asymptomatic; CAS, carotid artery stenting; CEA, carotid endarterectomy; MI, myocardial infarction; TIA, transient ischemic attack; TMB, transient monocular blindness.
Events were defined as any event occurring intraoperatively, before discharge, or between discharge and 30 days. The event rates in the table are per patient.
a
P values were based on Fisher exact test.