Fluorescein videoangiography (FL-VAG) as a predictor of cerebral bypass patency

Background: The fluorescein videoangiography (FL-VAG) has become a valuable adjunct tool in vascular neurosurgery. This work describes using the FL-VAG during bypass surgery and proposes a classification method for evaluating surgical results. Methods: We analyzed 26 patients with 50 cerebral bypass...

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Main Authors: Edgar Nathal, Javier Degollado-García, Héctor A. Rodríguez-Rubio, Alfredo Bonilla-Suástegui, Alejandro Serrano-Rubio
Format: Article
Language:English
Published: Elsevier 2024-07-01
Series:World Neurosurgery: X
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2590139724000188
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author Edgar Nathal
Javier Degollado-García
Héctor A. Rodríguez-Rubio
Alfredo Bonilla-Suástegui
Alejandro Serrano-Rubio
author_facet Edgar Nathal
Javier Degollado-García
Héctor A. Rodríguez-Rubio
Alfredo Bonilla-Suástegui
Alejandro Serrano-Rubio
author_sort Edgar Nathal
collection DOAJ
description Background: The fluorescein videoangiography (FL-VAG) has become a valuable adjunct tool in vascular neurosurgery. This work describes using the FL-VAG during bypass surgery and proposes a classification method for evaluating surgical results. Methods: We analyzed 26 patients with 50 cerebral bypasses from September 2018 to September 2022. We used a three grades classification method based on the pass of intravenous fluorescein through the anastomosis. Grade 1 represents the synchronous and total filling of the ''T'' shape (''green T″) formed by the donor and recipient vessel, Grade 2, the asynchronous filling of the anastomosis (incomplete/asynchronous ''green T″), and Grade 3, a non-patent anastomosis (absence of ''green T″). Results: Of the 26 patients, 8 underwent one bypass, 14 underwent double bypass, 2 underwent three bypasses, and 2 underwent four bypasses in two different interventions. The type of bypass was end-to-side anastomosis in 47 (94%) cases, internal maxillary artery to middle cerebral artery bypass with a radial artery graft (IMax-MCA anastomosis) in 2 (4%), and PICA-VA transposition in one (2%). We made 24 (48%) bypasses on the right side and 26 (52%) on the left side. After the initial surgery, thirty-nine (78%) bypasses were considered as Grade 1, 5 (10%) as Grade 2, and 6 (12%) as Grade 3. After intraoperative bypass patency assessment (IBPA), 45 (90%) of the bypasses were considered Grade 1 and remained patent on CTA. Conclusions: Using FL-VAG and a three-tier classification method is a reliable tool to predict bypass patency. It is safe, low-risk, and available worldwide.
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spelling doaj.art-6633a515f1a44a34b0c19c0ecb6c375e2024-03-16T05:09:13ZengElsevierWorld Neurosurgery: X2590-13972024-07-0123100287Fluorescein videoangiography (FL-VAG) as a predictor of cerebral bypass patencyEdgar Nathal0Javier Degollado-García1Héctor A. Rodríguez-Rubio2Alfredo Bonilla-Suástegui3Alejandro Serrano-Rubio4Corresponding author. Department of Vascular Neurosurgery Instituto Nacional de Neurología y Neurocirugía “Manuel Velasco Suarez”, Insurgentes Sur 3877, Tlalpan, 14263, Ciudad de México, USA.; Department of Vascular Neurosurgery, National Institute of Neurology and Neurosurgery “Manuel Velasco Suárez”, Mexico City USADepartment of Vascular Neurosurgery, National Institute of Neurology and Neurosurgery “Manuel Velasco Suárez”, Mexico City USADepartment of Vascular Neurosurgery, National Institute of Neurology and Neurosurgery “Manuel Velasco Suárez”, Mexico City USADepartment of Vascular Neurosurgery, National Institute of Neurology and Neurosurgery “Manuel Velasco Suárez”, Mexico City USADepartment of Vascular Neurosurgery, National Institute of Neurology and Neurosurgery “Manuel Velasco Suárez”, Mexico City USABackground: The fluorescein videoangiography (FL-VAG) has become a valuable adjunct tool in vascular neurosurgery. This work describes using the FL-VAG during bypass surgery and proposes a classification method for evaluating surgical results. Methods: We analyzed 26 patients with 50 cerebral bypasses from September 2018 to September 2022. We used a three grades classification method based on the pass of intravenous fluorescein through the anastomosis. Grade 1 represents the synchronous and total filling of the ''T'' shape (''green T″) formed by the donor and recipient vessel, Grade 2, the asynchronous filling of the anastomosis (incomplete/asynchronous ''green T″), and Grade 3, a non-patent anastomosis (absence of ''green T″). Results: Of the 26 patients, 8 underwent one bypass, 14 underwent double bypass, 2 underwent three bypasses, and 2 underwent four bypasses in two different interventions. The type of bypass was end-to-side anastomosis in 47 (94%) cases, internal maxillary artery to middle cerebral artery bypass with a radial artery graft (IMax-MCA anastomosis) in 2 (4%), and PICA-VA transposition in one (2%). We made 24 (48%) bypasses on the right side and 26 (52%) on the left side. After the initial surgery, thirty-nine (78%) bypasses were considered as Grade 1, 5 (10%) as Grade 2, and 6 (12%) as Grade 3. After intraoperative bypass patency assessment (IBPA), 45 (90%) of the bypasses were considered Grade 1 and remained patent on CTA. Conclusions: Using FL-VAG and a three-tier classification method is a reliable tool to predict bypass patency. It is safe, low-risk, and available worldwide.http://www.sciencedirect.com/science/article/pii/S2590139724000188Bypass surgeryCerebral revascularizationFluorescein videoangiographyMicrosurgeryVascular neurosurgery
spellingShingle Edgar Nathal
Javier Degollado-García
Héctor A. Rodríguez-Rubio
Alfredo Bonilla-Suástegui
Alejandro Serrano-Rubio
Fluorescein videoangiography (FL-VAG) as a predictor of cerebral bypass patency
World Neurosurgery: X
Bypass surgery
Cerebral revascularization
Fluorescein videoangiography
Microsurgery
Vascular neurosurgery
title Fluorescein videoangiography (FL-VAG) as a predictor of cerebral bypass patency
title_full Fluorescein videoangiography (FL-VAG) as a predictor of cerebral bypass patency
title_fullStr Fluorescein videoangiography (FL-VAG) as a predictor of cerebral bypass patency
title_full_unstemmed Fluorescein videoangiography (FL-VAG) as a predictor of cerebral bypass patency
title_short Fluorescein videoangiography (FL-VAG) as a predictor of cerebral bypass patency
title_sort fluorescein videoangiography fl vag as a predictor of cerebral bypass patency
topic Bypass surgery
Cerebral revascularization
Fluorescein videoangiography
Microsurgery
Vascular neurosurgery
url http://www.sciencedirect.com/science/article/pii/S2590139724000188
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AT alfredobonillasuastegui fluoresceinvideoangiographyflvagasapredictorofcerebralbypasspatency
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