Table 1.
Baseline characteristics and procedural aspects of patients who received endovascular stroke treatment for thromboembolic basilar artery occlusion and matched patients who received endovascular stroke treatment for middle cerebral artery occlusion in the observation period from January 2013 to December 2019
| BA occlusion (n = 90) | MCA occlusion (n = 90) | p value | ||
|---|---|---|---|---|
| Age (year), median (IQR) | 76 (68–82) | 78 (67–84) | 0.219‡ | |
| Male (%) | 40 (44) | 26 (29) | 0.065† | |
| Unknown time of symptom onset (%) | 29 (32.2) | 30 (33.3) | 0.874† | |
| Time from stroke onseta to final reperfusion result, in minutes, median (IQR) | 375 (260–526.5) | 332 (235–576) | 0.739‡ | |
| Procedural aspects | ||||
| Treatment in general anesthesia, (%) | 75 (83.3) | 28 (31.1) | < 0.001† | |
| Procedure Time (groin puncture to target vessel reperfusion), in minutes, median (IQR) | 31 (20–43) | 27 (18–38) | 0.226‡ | |
| Dose area product, in Gy × cm2, median (IQR) | 123.4 (78.7–204.2) | 94.3 (65.5–163.7) | 0.046‡ | |
| Fluoroscopy time, in minutes, median (IQR) | 29 (20–59) | 29 (17–49) | 0.317‡ | |
| Thrombectomy attemptsb | ||||
| Thrombectomy attempts in total, median (IQR) | 2 (1–3) | 2 (1–3) | 0.928† | |
| Patients with aspiration thrombectomy only, n (%) | 18 (20.0) | 19 (21.1) | ||
| Thrombectomy attempts with aspiration, median (IQR) | 0 (0–1) | 0 (0–1) | ||
| Patients with stent-retriever thrombectomy only, n | 67 (74.4) | 67 (74.4) | ||
| Thrombectomy attempts with stent-retriever thrombectomy, median (IQR) | 1 (1–3) | 1 (1–3) | ||
| Final angiographic reperfusion resultb | ||||
| BA occlusion | MCA occlusion | 0.853† | ||
| No substantial reperfusion, n (%) | 11 (12.2) | mTICI 0–2a, n (%) | 9 (10) | |
| Partial reperfusion, n (%) | 31 (33.4) | mTICI 2b, n (%) | 29 (32.2) | |
| mTICI 2c, n (%) | 5 (5.6) | |||
| Complete reperfusion, n (%) | 48 (53.3) | mTICI 3, n (%) | 47 (52.2) | |
aOr time of last seen well
bMatching criterion
†Chi-square test, two-sided
‡Mann–Whitney U test