Abstract WP146: Critical Care After Thrombolytic Therapy in Acute Stroke: Who Really Needs the ICU?

Abstract

Introduction: Intravenous thrombolytic therapy remains the cornerstone of management in acute ischemic stroke (AIS) patients. Given the potential adverse effects of thrombolysis, patients are admitted to an intensive care unit (ICU) for close monitoring following administration. Alternative post-thrombolytic pathways may provide for safe cost-effective care in certain populations. We aimed to determine the proportion of patients treated with thrombolytics who required ICU care for reasons other than frequent neurologic monitoring and define their characteristics. Methods: We retrospectively reviewed patients ≥ 18 years of age who received TNK/ tPA for AIS at our community-based stroke center between May 2020 and August 2022. Patients were classified as requiring ICU care if they required intubation within 24 hours of admission or neurosurgical intervention, had symptomatic hemorrhagic conversion or brain compression, required a continuous infusion for hemodynamic management, or were in status epilepticus. Univariate and multivariate statistical analysis was performed. The study protocol was deemed exempt by our institutional IRB. Results: 262 patients met inclusion criteria. 54 (20.6%) required ICU level of care. Characteristics of those requiring ICU level of care are described in Table 1. Multivariate analysis showed that patients on antiplatelet or anticoagulant therapies prior to arrival (AOR: 2.205, p= 0.021) or who presented with higher initial NIH stroke scale (AOR: 1.108, p < 0.001) had significantly higher likelihood of requiring ICU level of care. Conclusions: In our cohort, approximately 21% of patients required critical care. Anticoagulant or antiplatelet therapy prior to admission and greater NIH stroke scale on arrival were associated with an increased likelihood of requiring ICU level of care. Further prospective studies are indicated to assess the efficacy of alternative settings for post-thrombolytic care in selected AIS patients.