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Vertical Levels of the Occipital Artery Origin

Background and Objectives. The occipital artery (OA) is a posterior branch of the external carotid artery (ECA). The origin of the OA is commonly referred to a single landmark. We hypothesized that the origin of the OA could be variable as referred to the hyoid bone and the gonial angle. We thus aim...

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Autores principales: Dumitru, Cătălin Constantin, Hostiuc, Sorin, Vrapciu, Alexandra Diana, Rusu, Mugurel Constantin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9966296/
https://www.ncbi.nlm.nih.gov/pubmed/36837517
http://dx.doi.org/10.3390/medicina59020317
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author Dumitru, Cătălin Constantin
Hostiuc, Sorin
Vrapciu, Alexandra Diana
Rusu, Mugurel Constantin
author_facet Dumitru, Cătălin Constantin
Hostiuc, Sorin
Vrapciu, Alexandra Diana
Rusu, Mugurel Constantin
author_sort Dumitru, Cătălin Constantin
collection PubMed
description Background and Objectives. The occipital artery (OA) is a posterior branch of the external carotid artery (ECA). The origin of the OA is commonly referred to a single landmark. We hypothesized that the origin of the OA could be variable as referred to the hyoid bone and the gonial angle. We thus aimed at patterning the vertical topographic possibilities of the OA origin. Materials and Methods. One hundred archived computed tomography angiograms were randomly selected, inclusion and exclusion criteria were applied, and 90 files were kept (53 males, 37 females). The cases were documented bilaterally for different levels of origin of the OA origin: type 1—infrahyoid; type 2—hyoid; 3—infragonial; 4—gonial; 5—supragonial; 6—origin from the internal carotid artery (ICA). Results. The incidence of unilateral types in the 180 OAs was: type 1—1.11%, type 2—5.56%, type 3—40.56%, type 4—28.33%, type 5—23.33% and type 6, ICA origin of the OA—1.11%. There was found a significant association between the location of the left and right origins of the OAs (Pearson Chi2 = 59.18, p < 0.001), which suggests the presence of a strong symmetry of the origins. Bilateral symmetry of the vertical types of the OA origin was observed in 56.67% of cases; in 43.33% there was bilateral asymmetry. Conclusions. The ICA origin of the OA is an extremely rare variant. For surgical planning or prior to endovascular approaches the topography of the OA origin should be carefully documented, as it may be located from an infrahyoid to a supragonial level.
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spelling pubmed-99662962023-02-26 Vertical Levels of the Occipital Artery Origin Dumitru, Cătălin Constantin Hostiuc, Sorin Vrapciu, Alexandra Diana Rusu, Mugurel Constantin Medicina (Kaunas) Article Background and Objectives. The occipital artery (OA) is a posterior branch of the external carotid artery (ECA). The origin of the OA is commonly referred to a single landmark. We hypothesized that the origin of the OA could be variable as referred to the hyoid bone and the gonial angle. We thus aimed at patterning the vertical topographic possibilities of the OA origin. Materials and Methods. One hundred archived computed tomography angiograms were randomly selected, inclusion and exclusion criteria were applied, and 90 files were kept (53 males, 37 females). The cases were documented bilaterally for different levels of origin of the OA origin: type 1—infrahyoid; type 2—hyoid; 3—infragonial; 4—gonial; 5—supragonial; 6—origin from the internal carotid artery (ICA). Results. The incidence of unilateral types in the 180 OAs was: type 1—1.11%, type 2—5.56%, type 3—40.56%, type 4—28.33%, type 5—23.33% and type 6, ICA origin of the OA—1.11%. There was found a significant association between the location of the left and right origins of the OAs (Pearson Chi2 = 59.18, p < 0.001), which suggests the presence of a strong symmetry of the origins. Bilateral symmetry of the vertical types of the OA origin was observed in 56.67% of cases; in 43.33% there was bilateral asymmetry. Conclusions. The ICA origin of the OA is an extremely rare variant. For surgical planning or prior to endovascular approaches the topography of the OA origin should be carefully documented, as it may be located from an infrahyoid to a supragonial level. MDPI 2023-02-08 /pmc/articles/PMC9966296/ /pubmed/36837517 http://dx.doi.org/10.3390/medicina59020317 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Dumitru, Cătălin Constantin
Hostiuc, Sorin
Vrapciu, Alexandra Diana
Rusu, Mugurel Constantin
Vertical Levels of the Occipital Artery Origin
title Vertical Levels of the Occipital Artery Origin
title_full Vertical Levels of the Occipital Artery Origin
title_fullStr Vertical Levels of the Occipital Artery Origin
title_full_unstemmed Vertical Levels of the Occipital Artery Origin
title_short Vertical Levels of the Occipital Artery Origin
title_sort vertical levels of the occipital artery origin
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9966296/
https://www.ncbi.nlm.nih.gov/pubmed/36837517
http://dx.doi.org/10.3390/medicina59020317
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