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Inicio Acta Otorrinolaringológica Española Anterior ethmoidal artery at ethmoidal labyrinth: Bibliographical review of anat...
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Vol. 61. Issue 3.
Pages 202-208 (January 2010)
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Vol. 61. Issue 3.
Pages 202-208 (January 2010)
Anterior ethmoidal artery at ethmoidal labyrinth: Bibliographical review of anatomical variants and references for endoscopic surgery
La arteria etmoidal anterior en el laberinto etmoidal: Revisión bibliográfica sobre variantes anatómicas y referencias para la cirugía endoscópica
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María Pilar Lisbona Alquezara,
Corresponding author
mplisbona@hotmail.com

Corresponding author.
, Rafael Fernández Liesaa, Asís Lorente Muñozb, Laura Pérez Delgadoa, Silvia Herrera Tolosanaa, Gloria Tejero-Garcés Galvea, María Guallar Larpaa, Alberto Ortiz Garcíaa
a Servicio de Otorrinolaringología, Hospital Universitario Miguel Servet, Zaragoza, Spain
b Servicio de Neurocirugía, Hospital Universitario Miguel Servet, Zaragoza, Spain
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Abstract
Introduction

The anterior ethmoidal artery (AEA) has a trajectory with multiple anatomical variations. In addition, there are no clear references to locate it, so it is easy to produce an iatrogenic lesion. The goal of this study was to carry out a bibliographical review to analyse variants and endoscopic reference reports in the scientific literature.

Material and methods

A review in Medline and Embase data bases was carried out, looking for AEA-related anatomical and radiological studies. After the revision, the principal study results, together with several distances and angles useful for locating the AEA, are presented in this study.

Results

There were 13 main articles that analysed a total of 1388 AEA. It was absent from 2% to 14%. It was identifiable in computed tomography (CT) between 95% and 100%. It was located between the second and third ethmoidal lamella in 74.2% and at the skull base level in 66.6%. Ethmoidal sinuses pneumatisation was related to AEA location at the skull base. Between 83% and 85.3%, it was found at the suprabullar recess.

Conclusions

CT is useful for presurgery planning. AEA are more frequent between the second and third lamella and at skull level. Ethmoidal pneumatisation and Keros grades could be predictive factors for AEA relationship with the skull base level. The AEA, the axilla of the middle turbinate and the superomedial edge of the nose are in a straight line, being a simple and useful reference in endoscopic sinus surgery.

Keywords:
Anterior ethmoidal artery
Ethmoidal roof
Sinus surgery
Resumen
Introducción

La arteria etmoidal anterior presenta muchas variaciones anatómicas en su trayecto. Tampoco existen referencias claras para localizarla, por esto, es fácil producir una lesión iatrógena. El objetivo de este trabajo es realizar una búsqueda bibliográfica para analizar las variantes y referencias endoscópicas reseñadas en la literatura científica para localizarla.

Material y métodos

Se ha realizado una revisión en la base de datos Medline y Embase, buscando tanto trabajos anatómicos como radiológicos. Tras la revisión se recogen los resultados de los principales estudios.

Resultados

Se recogen 13 estudios que analizan en total 1.388 arterias etmoidales anteriores. Se encuentra ausente entre un 2–14%. Es identificable entre un 95–100% en una TC. Se sitúa entre la 2.a y la 3.a lamela etmoidal en un 74,2% y a nivel basicraneal en un 66,6%. La neumatización etmoidal se relaciona con la situación de la arteria etmoidal anterior a nivel de la base de cráneo. Entre el 83–85,3% se localiza a nivel del receso suprabullar. Se exponen varias distancias y ángulos medidos para poder localizarla.

Conclusiones

La TC es útil para una planificación prequirúrgica. Se localiza más frecuentemente entre la 2.a y 3.a lamela etmoidal y a nivel basicraneal. Factores como la neumatización etmoidal o el grado de Keros pueden predecir su relación con el nivel basicraneal. La arteria etmoidal anterior, la axila del cornete medio y el borde superomedial de la nariz forman una línea recta, siendo una referencia sencilla y útil en la cirugía endoscópica.

Palabras clave:
Arteria etmoidal anterior
Techo etmoidal
Cirugía sinusal

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