ICG-VA is a safe and effective technique for locating the ICA in skull-base expanded endonasal surgery. Furthermore, this technique can provide real-time guidance for the surgeon and increase safety for the patient.
El objetivo de esta revisión sistemática ha sido analizar la influencia de la posesión del balón en el rendimiento físico de los equipos y los jugadores en el fútbol masculino de elite. Se realizó una búsqueda sistemática de artículos relevantes en inglés en una base de datos (Web of Science Core Collection) y un motor de búsqueda (PubMed) siguendo el protocolo de PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-analyses). Las palabras clave “association football” y “soccer” se relacionaron con los términos: “possession of the ball”, “possession” “physical activity” y “physical performance”. Se buscaron estudios empíricos relacionados con el rendimiento físico y la posesión del balón para su inclusión y análisis. Se revisó el texto completo de 21 estudios. Globalmente, tener un alto (51–66%) o bajo (34–50%) porcentaje de posesión del balón produce diferencias muy poco relevantes en las distancias recorridas por los jugadores. Tan sólo la distancia cubierta con y sin la posesión del balón es significativamente diferente. Además, no está claro que correr más o menos pueda asociarse con un incremento de las probabilidades de ganar o perder.
Introduction This work reports the first indocyanine green videoangiography (IGV) in negative published with video format support. This technique, so called because its first phase is performed with occlusion of the vessel suspected of being pathologic, is used for the diagnosis of spinal arteriovenous fistula (sDAVF).
Case Report The authors present the case of a 68-year-old man with an sDAVF fed by the right T7 segmentary artery. IGV was initially performed with the presumptive fistula feeder occluded for less than 1 minute, which provided both diagnostic and postexclusion control in one procedure. This technique therefore is reversible by not prolonging vascular exclusion times.
Discussion IGV in negative is an extremely visual and intuitive procedure that represents an improvement over conventional IGV.
Conclusion Studies with larger sample sizes are necessary to determine whether IGV in negative can further reduce the need for postoperative digital subtraction angiography.
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