Table 1.
Patient’s and treatment characteristics according to use or not of prior intravenous thrombolysis
| Characteristic | Intravenous thrombolysis |
P | ASD (%) | |
|---|---|---|---|---|
| No (n=50) | Yes (n=94) | |||
| Age (yr) | 52.0±12.9 | 51.9±11.0 | 0.96 | 1.0 |
| Men | 33/50 (66.0) | 62/93 (66.7) | 0.94 | 1.4 |
| Medical history | ||||
| Hypertension | 17/45 (37.8) | 28/91 (30.8) | 0.41 | 14.8 |
| Diabetes mellitus | 2/46 (4.3) | 5/91 (5.5) | 1.00 | 5.3 |
| Hypercholesterolemia | 3/45 (6.7) | 18/91 (19.8) | 0.046 | 39.5 |
| Current smoking | 17/44 (38.6) | 22/89 (24.7) | 0.097 | 30.3 |
| Current stroke event | ||||
| NIHSS score* | 17 (13–19) | 15 (10–20) | 0.59 | 9.5 |
| ASPECTS† | 7 (5–8) | 7 (6–8) | 0.42 | 14.6 |
| 0 | 0/45 (0.0) | 1/86 (1.2) | ||
| 2 | 1/45 (2.2) | 1/86 (1.2) | ||
| 3 | 1/45 (2.2) | 2/86 (2.3) | ||
| 4 | 6/45 (13.3) | 2/86 (2.3) | ||
| 5 | 5/45 (11.1) | 15/86 (17.4) | ||
| 6 | 7/45 (15.6) | 10/86 (11.6) | ||
| 7 | 9/45 (20.0) | 20/86 (23.3) | ||
| 8 | 7/45 (15.6) | 16/86 (18.6) | ||
| 9 | 3/45 (6.7) | 10/86 (11.6) | ||
| 10 | 6/45 (13.3) | 9/86 (10.5) | ||
| Initial cerebral imaging | 0.67 | 7.6 | ||
| MRI | 27/48 (56.3) | 51/85 (60.0) | ||
| CT scan | 21/48 (43.8) | 34/85 (40.0) | ||
| Onset to imaging (min)‡ | 127 (81–217) | 105 (78–169) | 0.19 | 25.8 |
| Endovascular treatment | ||||
| Site of intracranial occlusion | 0.068 | 45.7 | ||
| M1-MCA | 28/50 (56.0) | 61/94 (64.9) | ||
| M2-MCA | 11/50 (22.0) | 7/94 (7.4) | ||
| Intracranial ICA | 11/50 (22.0) | 25/94 (26.6) | ||
| Recanalized occlusion | 0/50 (0.0) | 1/94 (1.1) | ||
| Right-sided infarct | 21/46 (45.7) | 40/87 (46.0) | 0.97 | 0.7 |
| Onset to groin puncture (min)§ | 211 (165–312) | 226 (179–290) | 0.70 | 9.5 |
| General anesthesia | 18/48 (37.5) | 36/93 (38.7) | 0.89 | 2.5 |
| First line intracranial thrombectomy | 0.81 | 15.2 | ||
| SR | 15/48 (31.3) | 29/86 (32.6) | ||
| CA | 23/48 (47.9) | 35/86 (40.7) | ||
| SR+CA | 10/48 (20.8) | 22/86 (25.6) | ||
| Others | 0/48 (0.0) | 1/86 (1.2) | ||
| Cervical ICA stenting | 24/50 (48.0) | 45/94 (47.9) | 0.99 | 0.3 |
| Antiplatelet medication during procedure | 18/50 (36.0) | 37/94 (39.4) | 0.69 | 6.9 |
Values are presented as mean±standard deviation, number/total number (%), or median (interquartile range).
ASD, absolute standardized difference; NIHSS, National Institutes of Health Stroke Scale; ASPECTS, Alberta Stroke Program Early CT Score; MRI, magnetic resonance imaging; CT, computed tomography; MCA, middle cerebral artery; ICA, intracranial carotid artery; SR, stent retriever; CA, contact aspiration.
*
1 missing value (1 in intravenous thrombolysis [IVT] group);
†
13 missing values (IVT group, n=8);
‡
38 missing values (IVT group n=23);
§
30 missing values (IVT group, n=21).