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Anales de Otorrinolaringología Mexicana

2024, Number 3

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Otorrinolaringología 2024; 69 (3)

Variability of sigmoid sinus depth in temporal bones by plain tomography

Moreno SR, Durán OM, Pineda CF, Sotelo RMT, Moscoso CFA, Sánchez PLC, Ramírez GA

Language: Spanish
References: 16
Page: 209-217
PDF size: 299.93 Kb.


ABSTRACT

Objective: To know the variability in the depth of the sigmoid sinus within the mastoid cavity in temporal bones according to the classifications of Sun et al, Ichigo et al and Melo et al.
Materials and Methods: Descriptive, non experimental, retrospective, quantitative study was done, assessing computed tomographies of Mexican patients older than 18 years of Regional Hospital General Ignacio Zaragoza (ISSSTE), Mexico City, who attended to external consultation of Otorhinolaryngology from June 2022 to March 2023. Prevalence of each classification and the distribution of demographic variables were calculated, the degree of relationship among the data sets of each sigmoid sinus classification was measured by correlation coefficient analysis.
Results: A total of 105 cases of patients ranging in age from 18 to 84 years were analyzed; the study showed variability in the depth of the sigmoid sinus within the mastoid cavity in the temporal bones among patients in position and shape according to sex and side of the ear, it was observed that the most frequent classification of sigmoid sinus in the right ear was lateral position, type 3 and protrusive shape, in the left ear it was lateral position, type 2 and saucer shape. The degree of relationship of the right ear was statistically significant between the proposal of Sun et al and Ichigo et al.
Conclusions: The right ear showed the most protrusive sigmoid sinus and it is more frequent that in women the position of the sigmoid sinus is deeper than in men.


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