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Reasons forReperfusion FailuresinStent-Retriever-BasedThrombectomy:Registry Analysis andProposal of aClassification System Johannes KaesmacherJan GrallaPascal J. Mosimann2018 год

Reasons for Reperfusion Failures in Stent-Retriever-Based Thrombectomy: Registry Analysis and Proposal of a Classification System
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Аннотация:

BACKGROUND AND PURPOSE:

In 5%–10% of patients with acute ischemic stroke with an intention to treat with mechanical thrombectomy, no reperfusion can be achieved (Thrombolysis in Cerebral Infarction score = 0/1). Purpose of this analysis was a systematic assessment of underlying reasons for reperfusion failures.

MATERIALS AND METHODS:

An intention-to-treat single-center cohort (n = 592) was re-evaluated for all patients in whom no reperfusion could be achieved (n = 63). Baseline characteristics of patients were compared between patients with and without reperfusion failures. After qualitative review of all cases with reperfusion failures, a classification system was proposed and relative frequencies were reported. In a second step, occurrence of delayed recanalization at 24 hours after reperfusion failure and dependency on IV-tPA were evaluated.

RESULTS:

In 63/592 patients with an intention to perform stent-retriever thrombectomy, no reperfusion was achieved (TICI 0/1, 10.6%, 95% CI, 8.2%–13.1%). Older patients (adjusted OR per yr = 1.03; 95% CI, 1.01–1.05) and patients with M2 occlusion (adjusted OR = 3.36; 95% CI, 1.82–6.21) were at higher risk for reperfusion failure. In most cases, no reperfusion was a consequence of technical difficulties (56/63, 88.9%). In one-third of these cases, reperfusion failures were due to the inability to reach the target occlusion (20/63, 31.7%), while "stent-retriever failure" occurred in 39.7% (25/63) of patients. Delayed recanalization was very rare (18.2%), without dependence on IV-tPA pretreatment status.

CONCLUSIONS:

Reasons for reperfusion failure in stent-retriever thrombectomy are heterogeneous. The failure to establish intracranial or cervical access is almost as common as stent-retriever failure after establishing intracranial access. Systematic reporting standards of reasons may help to further estimate relative frequencies and thereby guide priorities for technical development and scientific effort.
Год издания: 2018
Авторы: Johannes Kaesmacher, Jan Gralla, Pascal J. Mosimann, Felix Zibold, Mirjam R. Heldner, Eike I. Piechowiak, Tomas Dobrocky, Marcel Arnold, Urs Fischer, Pasquale Mordasini
Издательство: American Society of Neuroradiology
Источник: American Journal of Neuroradiology
Ключевые слова: Acute Ischemic Stroke Management, Cerebrovascular and Carotid Artery Diseases, Stroke Rehabilitation and Recovery
Другие ссылки: American Journal of Neuroradiology (PDF)
American Journal of Neuroradiology (HTML)
PubMed Central (HTML)
PubMed (HTML)