Table 2. Overview of procedural data as well as procedural and clinical outcome measures of all patients. Hemorrhage types are indicated according to the ECASS classification.
| Procedural data/outcome measures | 2008–2010 | 2012–2014 | P |
|---|---|---|---|
| Procedural techniques, (n%) | |||
| Number of intracranial interventional techniques applied | 2.1±0.9 (median, 2.0; range, 1–4) | 1.4±0.5 (median, 1.0; range, 1–2) | <0.001 |
| IV thrombolysis | 13 (36.1) | 32 (64.0) | 0.017 |
| IA thrombolysis | 24 (66.7) | 15 (30.0) | 0.001 |
| Stent-retriever | 11 (30.6) | 47 (94.0) | <0.001 |
| Intracranial stenting | 10 (27.8) | 1 (2.0) | 0.001 |
| Extracranial stenting | 12 (33.3) | 6 (12.0) | 0.016 |
| Manual microcatheter aspiration | 7 (19.4) | − | 0.002 |
| Manual proximal aspiration | 8 (22.2) | – | 0.001 |
| Penumbra system | 13 (36.1) | – | <0.001 |
| Other | 4 (11.1) | – | 0.028 |
| Time intervals | |||
| Time of symptom onset determinable, (n%) | 34 (94.4) | 24 (48.0) | <0.001 |
| Onset to image (min) | 143.2±52.5 (median, 120.0; range, 60–240) | 164.7±144.8 (median, 126.0; range, 38–681) | 0.659 |
| Image to groin (min) | 72.14±27.1 (median, 75.0; range, 30–120) | 54.67±23.3 (median, 52.0; range, 17–155) | 0.006 |
| Groin to revascularization (min) | 163.52±101.0 (median, 140.0; range, 45–450) | 85.22±63.6 (median, 58.5; range, 22–274) | <0.001 |
| Onset to revascularization (min) | 349.87±97.5 (median, 345.0; range, 195–555) | 299.69±157.0 (median, 270; range, 136–847) | 0.017 |
| Hemorrhage, (n%) | |||
| PH1 | 4 (11.1) | 2 (4.0) | 0.202 |
| PH2 | 3 (8.3) | 2 (4.0) | 0.645 |
| SAH | 1 (2.8) | 1 (2.0) | 1.000 |
| Symptomatic ICH | 0 (0.0) | 2 (4.0)* | 0.508 |
| Outcome measures, (n%) | |||
| Successful revascularization (TICI ≥2b) | 33/36 (91.7) | 43/50 (86.0) | 0.510 |
| mRS d90 | 3.8±1.9 (median, 4.0; range, 0–6) | 3.5±2.3 (median, 3.5; range, 0–6) | 0.691 |
| mRS ≤2 d90 | 8/36 (22.2) | 20/50 (40.0) | 0.083 |
| Death (mRS 6) d90 | 9/36 (25.0) | 17/50 (34.0) | 0.370 |
*, one occurring 1 day and the other occurring three days after stroke treatment (both PH2). “Other” treatment modalities were the use of a Phenox retriever in three cases and the use of a snare device in one case. PH1 and PH2, parenchymal hemorrhage type 1 and 2; SAH, subarachnoid hemorrhage; ICH, intracranial hemorrhage; ECASS, the European cooperative acute stroke study.