It is your responsibility not to have these problems until your stroke hospital has protocols in place to prevent these deaths and disability. YOUR RESPONSIBILITY! Obviously you can't expect your hospital to be competent in all types of strokes.
Risk of Aneurysm Rupture After Thrombolysis in Patients With Acute Ischemic Stroke and Unruptured Intracranial Aneurysms
Abstract
Background and Objectives: Unruptured intracranial aneurysms (UIAs) are considered to be a relative contraindication for intravenous thrombolysis (IVT) in acute ischemic stroke (AIS). However, there is currently limited data on the risk of UIA rupture following IVT. Our objective was to assess whether IVT for AIS can lead to a UIA rupture and intracranial hemorrhages (ICHs) in patients with unruptured UIAs.
Methods: Prospective cohort study of consecutive patients treated in a comprehensive stroke center between 2005 and 2019. We assessed radiology reports and records at the Finnish Care Register for Health Care to identify patients with UIAs among all AIS patients treated with IVT at the center. We analyzed patient angiograms for aneurysm characteristics and other brain imaging studies for ICHs after IVT. The main outcome was in-hospital ICHs attributable to an UIA rupture after IVT. Secondary outcomes were in-hospital symptomatic ICHs (ECASS-2 criteria, i.e., NIH Stroke Scale score increase of ≥4 points) and any in-hospital ICHs.
Results: A total of 3 953 patients were treated with IVT during the 15-year study period. One hundred thirty-two (3.3 %) of the 3 953 AIS patients had a total of 155 UIAs (141 saccular and 14 fusiform). The mean diameter of UIAs was 4.7 ± 3.8 mm, with 18.7% being ≥7 mm and 9.7% ≥10 mm in diameter. None of the 141 saccular UIAs ruptured following IVT. Three patients [2.3%, 95% confidence interval (CI) 0.6-5.8%] with large fusiform basilar artery UIAs suffered from a fatal rupture at 27 hours, 43 hours, and 19 days after IVT. All three were administered anticoagulation treatments following IVT and anticoagulation took effect during the UIA rupture. Any ICHs and symptomatic ICHs were detected in 18.9 % (95% CI 12.9-26.2%) and 8.3% (95% CI 4.4-13.8%) of all AIS patients, respectively.
Discussion: IVT appears to be safe in AIS patients with saccular UIAs, including larges UIAs (≥10 mm). Anticoagulation after AIS in patients with large fusiform posterior circulation UIAs may increase the risk of aneurysm rupture.
- Received May 17, 2021.
- Accepted in final form August 12, 2021.
- © 2021 American Academy of Neurology
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