Intravenous Thrombolysis With or Without Endovascular Treatment for Suspected Ischemic Stroke in Patients With Intracranial Tumors.

Seystahl, Katharina; Martinez-Majander, Nicolas; Salerno, Alexander; Beyeler, Morin; Erdur, Hebun; Marto, João Pedro; Hametner, Christian; Zedde, Marialuisa; Pezzini, Alessandro; Leker, Ronen; Altersberger, Valerian; Costamagna, Gianluca; Serôdio, Miguel; Migliaccio, Ludovica; Pascarella, Rosario; Zini, Andrea; Mannismäki, Laura; Béjot, Yannick; Jung, Simon; Gensicke, Henrik; ... (2023). Intravenous Thrombolysis With or Without Endovascular Treatment for Suspected Ischemic Stroke in Patients With Intracranial Tumors. Neurology, 101(12), e1241-e1255. American Academy of Neurology 10.1212/WNL.0000000000207624

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BACKGROUND AND OBJECTIVES

Intravenous thrombolysis (IVT) for suspected ischemic stroke in patients with intracranial neoplasms is off-label. However, data on risks of intracranial hemorrhage (ICH) is scarce.

METHODS

In a multicenter registry-based analysis within the European Thrombolysis in Ischemic Stroke Patients (TRISP) collaboration, we assessed frequencies of symptomatic and fatal ICH after IVT for suspected ischemic stroke in patients with intracranial tumors by descriptive statistics and analyzed associations with clinical and imaging characteristics by binary logistic regression. Definition of symptomatic ICH was based on the clinical criteria of the European Cooperative Acute Stroke-II trial including hemorrhage at any site in cranial imaging and concurrent clinical deterioration.

RESULTS

Screening data of 21,289 patients from 14 centers, we identified 105 patients receiving IVT, among them 29 patients (28%) with additional endovascular treatment, with suspected, i.e. imaging-based, or histologically confirmed diagnosis of intracranial tumors. Among 104 patients with CT or MRI after IVT available, symptomatic and fatal ICH were observed in nine and four patients (9% and 4%). Among 82 patients with suspected or confirmed meningioma, symptomatic and fatal ICH occurred in six and three patients (7% and 4%). In 18 patients with intra-axial suspected or confirmed primary or secondary brain tumors, there was one symptomatic nonfatal ICH (6%). Out of four patients with tumors of the pituitary region, two patients (50%) had symptomatic ICH including one fatal ICH (25%). Tumor size was not associated with occurrence of symptomatic ICH (Odds ratio 2.8, 95% CI 0.3-24.8, p=0.34).

DISCUSSION

In our dataset from routine clinical care, we provide insights on the safety of IVT for suspected ischemic stroke in patients with intracranial tumors, a population that is commonly withheld thrombolysis in clinical practice and prospective trials. Except for a potential high risk of symptomatic ICH after IVT in patients with tumors of the pituitary region, frequencies of symptomatic ICH in patients with intracranial tumors in our cohort appear to be in the upper range of rates observed in previous studies within the TRISP cooperation. These results may guide individual treatment decisions in patients with acute stroke and intracranial tumors with potential benefit of IVT.

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