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Los patrones de neumatización que rodean el meato acústico interno

Răzvan Costin Tudose1, George Triantafyllou2, Maria Piagkou2

  • 1Division of Anatomy, Department 1, Faculty of Dentistry, "Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania; Research Department, "Dr. Carol Davila" Central Military Emergency Hospital, RO-010825 Bucharest, Romania; Center of Innovation and e-Health, "Carol Davila" University of Medicine and Pharmacy, 020021 Bucharest, Romania.

Annals of anatomy = Anatomischer Anzeiger : official organ of the Anatomische Gesellschaft
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PubMed
Resumen

La neumatización del hueso temporal alrededor del meato acústico interno (IAM) afecta con mayor frecuencia a la pared superior. Esta neumatización está relacionada con el aumento del grosor del tegmento, crucial para la planificación quirúrgica.

Palabras clave:
Tomografía computarizada de haz cónicoMeato acústico internoespesor del tegmentoPneumatización del hueso temporalEspectroscopia de las muestras

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Área de la Ciencia:

  • Otorrinolaringología
  • Neurocirugía
  • Radiología

Sus antecedentes:

  • La neumatización temporal del hueso es una variación anatómica común.
  • Comprender los patrones de neumatización alrededor del meato acústico interno (IAM) es vital para la cirugía de la base del cráneo.
  • Los estudios anteriores no han detallado exhaustivamente la neumatización adyacente al IAM en sus distintas regiones.

Objetivo del estudio:

  • Determinar la prevalencia y la distribución anatómica de la neumatización del hueso temporal que rodea el meato acústico interno (MAI).
  • Para evaluar la neumatización en el poro acústico interno, el IAM apropiado y el fondo.
  • Investigar la relación entre la neumatización adyacente al IAM y el grosor del tegmento superpuesto.

Principales métodos:

  • Análisis de tomografía computarizada de haz de cono (CBCT) de 160 carnes acústicas internas (IAM) de 80 pacientes.
  • Subdivisión del IAM en porciones medial (pórus), medial (IAM propio) y lateral (fundus).
  • Evaluación de la neumatización en las paredes superior, inferior, anterior y posterior, con mediciones del espesor del tegmento.

Principales resultados:

  • La neumatización superior de la pared se observó en aproximadamente el 23% de los lados.
  • La neumatización de la pared inferior estuvo ausente en más del 50% de los casos; la neumatización de la pared posterior estuvo ausente en gran medida.
  • Las regiones neumatizadas presentaron un espesor de tegmen significativamente mayor (p < 0,001).

Conclusiones:

  • La neumatización del hueso temporal adyacente al IAM afecta predominantemente a la pared superior.
  • El aumento del grosor del tegmento está asociado con la neumatización adyacente al IAM.
  • Los hallazgos mejoran la comprensión de enfoques quirúrgicos y procedimientos neurotológicos más seguros para la base del cráneo.