Utilidad del análisis de flujo por videoangiografía icg (flow 800) en neurocirugía vascular. Nota técnica

Abstract

Background: Indocyanine green (ICG) videography has had a great impact on vascular neurosurgery. The integration of a new software (FLOW 800 Carls Zeiss) has allowed the performance of a semiquantitative flow analysis that has improved our understanding of the pathophysiology of arterial, venous, and parenchymal blood flow in neurosurgical procedures. Objective: To describe the utility of FLOW 800 ICG videoangiography in cerebrovascular surgery. Method: Two cases are presented in which the flow analysis was decisive for the decision making during the surgery. The first case corresponds to a patient surgically treated for arteriovenous malformation (AVM). The second case corresponds to a patient with chronic cerebral ischemia in whom cerebral bypass was performed. Results: FLOW 800 ICG videoangiography analysis proved to be useful for the identification of afferent and efferent vessels in a complex nidus AVM. In bypass surgery allowed a better selection of recipient artery, as well as to verify the improvement in parenchymal perfusion after revascularization. Conclusion: FLOW 800 is an efficient and non-invasive tool that provides valuable information for decision making in vascular neurosurgery.