Stroke and neurointervention in the COVID-19 pandemic: a narrative review

Introduction: In this review, we will summarize the impact of the COVID-19 pandemic on neurointerventional care for patients with cerebrovascular disease, with a particular emphasis on epidemiology, neurointerventional processes, and lessons learned from paradigm shifts in endovascular care. Areas covered: Peer-reviewed research is summarized regarding the complications of COVID-19 as related to the pandemic's impact on hospital admissions, imaging capabilities, treatment times, and outcomes of neurointerventional cases. Expert opinion: In the first wave of the COVID-19 pandemic, there was a global decline in neuroimaging, use of intravenous thrombolysis, thrombectomy, and coil embolization for ruptured intracranial aneurysms. An early recommendation to utilize general anesthesia and intubate all patients undergoing intervention to avoid an emergent aerosolizing procedure was found to have worse outcomes. The decline in new stroke and subarachnoid hemorrhage diagnoses may be related to patient and/or family fear of seeking acute medical care. A true shift in stroke epidemiology is also possible. As several vaccines become more readily available and the world rebounds from this pandemic, we hope to transform the neurointerventional experiences discussed in this paper into strategies that may improve care delivery of neurologically ill patients during a global crisis.