Recanalization Rate per Retrieval Attempt in Mechanical Thrombectomy for Acute Ischemic Stroke
Beteiligte Einrichtungen
Abstract
Methods: In this analysis, 330 patients with acute large vessel occlusion treated exclusively with stentrieval devices were included. Successful recanalization was defined as Thrombolysis in Cerebral Infarction 2b-3, a good clinical outcome was defined as modified Rankin Scale at 90 days of ≤2.
Results: The median number of retrieval attempts was 1 (interquartile range, 1–2, maximum 8). Recanalization rates per retrieval attempt were highest for the first retrieval (46.8%) and lowest for the fifth retrieval (22.7%). After 3 retrieval attempts, 67.9% of patients were successfully recanalized. Patients with 1 to 3 retrieval attempts had higher rates of good clinical outcome (28.9% versus 7.4%; P=0.018). The number of passes was an independent negative predictor of good clinical outcome (adjusted odds ratio, 0.65; 95% CI, 0.435–0.970; P=0.035).
Conclusions: Two-thirds of occlusions were successfully recanalized with up to 3 retrieval attempts. Further attempts had good recanalization rates, but the rate of favorable clinical outcome did not improve.
Bibliografische Daten
Originalsprache | Deutsch |
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ISSN | 0039-2499 |
DOIs | |
Status | Veröffentlicht - 07.09.2018 |