Recent Vitamin K Antagonist Use and Intracranial Hemorrhage After Endovascular Thrombectomy for Acute Ischemic Stroke

dc.contributor.authorMac Grory, Brian
dc.contributor.authorHolmes, DaJuanicia N.
dc.contributor.authorMatsouaka, Roland A.
dc.contributor.authorShah, Shreyansh
dc.contributor.authorChang, Cherylee W. J.
dc.contributor.authorRison, Richard
dc.contributor.authorJindal, Jenelle
dc.contributor.authorHolmstedt, Christine
dc.contributor.authorLogan, William R.
dc.contributor.authorCorral, Candy
dc.contributor.authorMackey, Jason S.
dc.contributor.authorGee, Joey R.
dc.contributor.authorBonovich, David
dc.contributor.authorWalker, James
dc.contributor.authorGropen, Toby
dc.contributor.authorBenesch, Curtis
dc.contributor.authorDissin, Jonathan
dc.contributor.authorPandey, Hemant
dc.contributor.authorWang, David
dc.contributor.authorUnverdorben, Martin
dc.contributor.authorHernandez, Adrian F.
dc.contributor.authorReeves, Mathew
dc.contributor.authorSmith, Eric E.
dc.contributor.authorSchwamm, Lee H.
dc.contributor.authorBhatt, Deepak L.
dc.contributor.authorSaver, Jeffrey L.
dc.contributor.authorFonarow, Gregg C.
dc.contributor.authorPeterson, Eric D.
dc.contributor.authorXian, Ying
dc.contributor.departmentNeurology, School of Medicine
dc.date.accessioned2024-05-14T10:03:05Z
dc.date.available2024-05-14T10:03:05Z
dc.date.issued2023
dc.description.abstractImportance: Use of oral vitamin K antagonists (VKAs) may place patients undergoing endovascular thrombectomy (EVT) for acute ischemic stroke caused by large vessel occlusion at increased risk of complications. Objective: To determine the association between recent use of a VKA and outcomes among patients selected to undergo EVT in clinical practice. Design, setting, and participants: Retrospective, observational cohort study based on the American Heart Association's Get With the Guidelines-Stroke Program between October 2015 and March 2020. From 594 participating hospitals in the US, 32 715 patients with acute ischemic stroke selected to undergo EVT within 6 hours of time last known to be well were included. Exposure: VKA use within the 7 days prior to hospital arrival. Main outcome and measures: The primary end point was symptomatic intracranial hemorrhage (sICH). Secondary end points included life-threatening systemic hemorrhage, another serious complication, any complications of reperfusion therapy, in-hospital mortality, and in-hospital mortality or discharge to hospice. Results: Of 32 715 patients (median age, 72 years; 50.7% female), 3087 (9.4%) had used a VKA (median international normalized ratio [INR], 1.5 [IQR, 1.2-1.9]) and 29 628 had not used a VKA prior to hospital presentation. Overall, prior VKA use was not significantly associated with an increased risk of sICH (211/3087 patients [6.8%] taking a VKA compared with 1904/29 628 patients [6.4%] not taking a VKA; adjusted odds ratio [OR], 1.12 [95% CI, 0.94-1.35]; adjusted risk difference, 0.69% [95% CI, -0.39% to 1.77%]). Among 830 patients taking a VKA with an INR greater than 1.7, sICH risk was significantly higher than in those not taking a VKA (8.3% vs 6.4%; adjusted OR, 1.88 [95% CI, 1.33-2.65]; adjusted risk difference, 4.03% [95% CI, 1.53%-6.53%]), while those with an INR of 1.7 or lower (n = 1585) had no significant difference in the risk of sICH (6.7% vs 6.4%; adjusted OR, 1.24 [95% CI, 0.87-1.76]; adjusted risk difference, 1.13% [95% CI, -0.79% to 3.04%]). Of 5 prespecified secondary end points, none showed a significant difference across VKA-exposed vs VKA-unexposed groups. Conclusions and relevance: Among patients with acute ischemic stroke selected to receive EVT, VKA use within the preceding 7 days was not associated with a significantly increased risk of sICH overall. However, recent VKA use with a presenting INR greater than 1.7 was associated with a significantly increased risk of sICH compared with no use of anticoagulants.
dc.identifier.citationMac Grory B, Holmes DN, Matsouaka RA, et al. Recent Vitamin K Antagonist Use and Intracranial Hemorrhage After Endovascular Thrombectomy for Acute Ischemic Stroke. JAMA. 2023;329(23):2038-2049. doi:10.1001/jama.2023.8073
dc.identifier.urihttps://hdl.handle.net/1805/40704
dc.language.isoen_US
dc.publisherAmerican Medical Association
dc.relation.isversionof10.1001/jama.2023.8073
dc.relation.journalJAMA
dc.rightsPublisher Policy
dc.sourcePMC
dc.subjectAnticoagulants
dc.subjectBrain ischemia
dc.subjectFibrinolytic agents
dc.subjectEndovascular procedures
dc.subjectIntracranial hemorrhages
dc.subjectThrombectomy
dc.titleRecent Vitamin K Antagonist Use and Intracranial Hemorrhage After Endovascular Thrombectomy for Acute Ischemic Stroke
dc.typeArticle
ul.alternative.fulltexthttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC10282891/
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