Demand-supply of neurointerventionalists for endovascular ischemic stroke therapy

Objective: To estimate the needed workforce of trained neurointerventionalists (NIs) to perform endovascular therapy (ET) for eligible patients with acute ischemic stroke (AIS). Method: Population and ischemic stroke incidence data were extracted with use of US Census and Centers for Disease Control and Prevention 2009 estimates. The annual “demand ” is defined as the proportion of AIS patients who would meet inclusion criteria and clinical standards for ET. The “supply ” is defined as the number of trained NIs and NIs in training. The “workforce ” is the number of NIs needed to meet the demand (the number of eligible AIS patients) within an accessi-ble geographic diameter. Data on NIs and NI fellowships were collected (Society of Neurointer-ventional Surgery [SNIS], Society of Vascular & Interventional Neurology [SVIN], Concentri