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Inicio Acta Otorrinolaringológica Española Association between the insertion type of the uncinate process and the developme...
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Vol. 72. Issue 4.
Pages 246-251 (July - August 2021)
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Vol. 72. Issue 4.
Pages 246-251 (July - August 2021)
Original article
Association between the insertion type of the uncinate process and the development of Frontal Sinus Mucoceles - is there a relationship?
Asociación entre el tipo de inserción de la apófisis unciforme y el desarrollo de mucoceles del seno frontal: ¿Hay alguna relación?
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Mafalda S. Barrosoa,?
Corresponding author
mafalda.sbarroso@hotmail.com

Autor para correspondencia.
, Bernardo C. Araújoa, João Jacintob, Catarina Marquesc, Ilídio Gamaa, Ezequiel Barrosa
a Department of Otorhinolaryngology, Head and Neck Surgery, Centro Hospitalar Universitário de Lisboa Central, Hospital de S. José, Lisbon, Portugal
b Department of Neuroradiology, Centro Hospitalar Universitário de Lisboa Central, Hospital de S. José, Lisbon, Portugal
c Department of Quatitative Methods for Management and Economics, ISCTE Business School, Lisbon, Portugal
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Figures (1)
Tables (4)
Table 1. Landsberg & Friedman Classification.
Table 2. Results of the Chi-Square test.
Table 3. Results of Cramer's V test.
Table 4. Estimated regression coeficients of the Logistic regression.
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Abstract
Background

The frontal sinus drainage pathway is formed by either the ethmoid infundibulum or the middle meatus, which depends on the superior insertion of the uncinate process. According to Landsberg & Friedman the are 6 types of superior uncinate process insertion.

The aim of this study is to find an association between the uncinate process insertion type and the development of frontal sinus mucoceles.

Methods

Fifty sinus CT scans were analysed. Exclusion criteria were previous nasal surgeries, malignancy, polyposis and an insufficient image quality. Superior insertions of the uncinate process were analysed according to the Landsberg & Friedman classification. The results were tabulated and analysed using SPSS 25.0.

Results

The analysis revealed type 1 insertion in 6% of the CT scans, type 2 in 32%, type 3 in 26%, type 4 in 0%, type 5 in 28% and type 6 in 8%. Despite 44% of the CT scans with frontal sinus mucocele showing a type 2 insertion of the uncinate process, both the Chi-Square test and the Cramer's V test showed no statistical significance (p>.05). Logistic regression also showed that uncinate process insertion type does not influence the likelihood of development of frontal sinuses mucoceles.

Conclusions

The insertion of the uncinate process does not influence the development of frontal sinus mucoceles.

Keywords:
Uncinate Process
Frontal sinus
Mucocele
Resumen
Antecedentes

La vía de drenaje del seno frontal es formada por el infundíbulo etmoidal o por el meato medio, lo que depende de la inserción superior de la apófisis unciforme. Según Landsberg y Friedman hay seis tipos de inserción superior de la apófisis unciforme.

El objetivo del estudio es entender si hay alguna correlación entre el tipo de inserción de la apófisis unciforme y el desarrollo de mucoceles del seno frontal.

Material y métodos

Se analizaron 50 tomografías computarizadas de los senos paranasales. Los criterios de exclusión fueron cirugías nasales previas, malignidad, poliposis y una calidad de imagen insuficiente. Las inserciones superiores de la apófisis unciforme fueron analizadas según la clasificación de Landsberg y Friedman. Los resultados se tabularon y analizaron usando el SPSS 25.0.

Resultados

El análisis reveló la inserción de tipo 1 en 6% de las tomografías computarizadas, tipo 2 en 32%, tipo 3 en 26%, tipo 4 en 0%, tipo 5 en 28% y tipo 6 en 8%. A pesar de que el 44% de las tomografías computarizadas con mucocele del seno frontal muestran una inserción de tipo 2 de la apófisis unciforme, tanto la prueba de X2 como la prueba de V de Cramer, no mostraron significación estadística (p > 0,05). La regresión logística también demostró que el tipo de inserción de la apófisis unciforme no influye en la probabilidad de desarrollo de mucoceles de los senos frontales.

Conclusión

La inserción de la apófisis unciforme no influye el desarrollo de los mucoceles en los senos frontales.

Palabras clave:
Apófisis unciforme
Seno frontal
Mucocele

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