Endovascular Stroke Treatment and Risk of Intracranial Hemorrhage in Anticoagulated Patients.

Meinel, Thomas R.; Kniepert, Joachim U.; Seiffge, David J.; Gralla, Jan; Jung, Simon; Auer, Elias; Frey, Sebastién; Göldlin, Martina; Mordasini, Pasquale; Mosimann, Pascal J.; Nogueira, Raul G; Haussen, Diogo C; Rodrigues, Gabriel M; Uphaus, Timo; L'Allinec, Vincent; Krajíčková, Dagmar; Alonso, Angelika; Costalat, Vincent; Hajdu, Steven D; Olivé-Gadea, Marta; ... (2020). Endovascular Stroke Treatment and Risk of Intracranial Hemorrhage in Anticoagulated Patients. Stroke, 51(3), pp. 892-898. American Heart Association 10.1161/STROKEAHA.119.026606

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Background and Purpose- We aimed to determine the safety and mortality after mechanical thrombectomy in patients taking vitamin K antagonists (VKAs) or direct oral anticoagulants (DOACs). Methods- In a multicenter observational cohort study, we used multiple logistic regression analysis to evaluate associations of symptomatic intracranial hemorrhage (sICH) with VKA or DOAC prescription before thrombectomy as compared with no anticoagulation. The primary outcomes were the rate of sICH and all-cause mortality at 90 days, incorporating sensitivity analysis regarding confirmed therapeutic anticoagulation. Additionally, we performed a systematic review and meta-analysis of literature on this topic. Results- Altogether, 1932 patients were included (VKA, n=222; DOAC, n=98; no anticoagulation, n=1612); median age, 74 years (interquartile range, 62-82); 49.6% women. VKA prescription was associated with increased odds for sICH and mortality (adjusted odds ratio [aOR], 2.55 [95% CI, 1.35-4.84] and 1.64 [95% CI, 1.09-2.47]) as compared with the control group, whereas no association with DOAC intake was observed (aOR, 0.98 [95% CI, 0.29-3.35] and 1.35 [95% CI, 0.72-2.53]). Sensitivity analyses considering only patients within the confirmed therapeutic anticoagulation range did not alter the findings. A study-level meta-analysis incorporating data from 7462 patients (855 VKAs, 318 DOACs, and 6289 controls) from 15 observational cohorts corroborated these observations, yielding an increased rate of sICH in VKA patients (aOR, 1.62 [95% CI, 1.22-2.17]) but not in DOAC patients (aOR, 1.03 [95% CI, 0.60-1.80]). Conclusions- Patients taking VKA have an increased risk of sICH and mortality after mechanical thrombectomy. The lower risk of sICH associated with DOAC may also be noticeable in the acute setting. Improved selection might be advisable in VKA-treated patients. Registration- URL: https://www.clinicaltrials.gov. Unique identifier: NCT03496064. Systematic Review and Meta-Analysis: CRD42019127464.

Item Type:

Journal Article (Original Article)


04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Neurology
04 Faculty of Medicine > Department of Radiology, Neuroradiology and Nuclear Medicine (DRNN) > Institute of Diagnostic, Interventional and Paediatric Radiology
04 Faculty of Medicine > Department of Radiology, Neuroradiology and Nuclear Medicine (DRNN) > Institute of Diagnostic and Interventional Neuroradiology

UniBE Contributor:

Meinel, Thomas Raphael, Kniepert, Joachim Ulrich, Seiffge, David Julian, Gralla, Jan, Jung, Simon, Göldlin, Martina Béatrice, Mordasini, Pasquale Ranato, Mosimann, Pascal John, Arnold, Marcel, Heldner, Mirjam Rachel, Fischer, Urs Martin, Kaesmacher, Johannes


600 Technology > 610 Medicine & health




American Heart Association




Maria de Fatima Henriques Bernardo

Date Deposited:

11 Feb 2020 12:20

Last Modified:

02 Mar 2023 23:33

Publisher DOI:


PubMed ID:


Uncontrolled Keywords:

aged cohort studies control groups humans stroke





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