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EVALUATION OF SPHENOID SEPTUM AND CLINICAL SIGNIFICANCE ON MULTISLICE COMPUTED TOMOGRAPHY IN THE PRE-ENDOSCOPIC SINUS SURGERY PATIENTS
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Abstract
Purposes: Evaluation of the septum of the sphenoid sinus and the relationship between the number and position of the septum and the internal carotid artery on multi-slice computed tomography (MSCT) of the sinuses in pre-endoscopic sinus surgery patients at Hanoi Medical University Hospital. Material and methods: A retrospective descriptive cross-sectional study of paranasal sinuses analysis in 149 patients (75 women, 74 men) before endoscopic sinus surgery, who underwent MSCT without intravenous contrast to assess the septum of the sphenoid sinus and its relationship. MSCT imaging procedure from frontal sinus to the end of sphenoid sinus with 0.625mm thickness, reconstructed in coronal plane perpendicular to hard palate and axial parallel to hard palate. Sphenoid sinus septum was divided into 3 groups: group I, without septum, group II with 01 septum and group III with > 1 septum. Particularly, group II was divided into 3 small groups, group IIa had 01 septum located in the center, group IIb had 01 septum located at the right deviation from the crest and group IIc had 01 septum located at the left deviation from the crest. Results: The mean age of the group of patients was 46.6±15, the lowest age was 8, the highest was 77. Among 149 patients, 1 patient (accounting for 0.7%) had no septal sinus (group I). There were 52/149 patients (accounting for 34.9%) sphenoid sinus had 01 central septum (group IIa), 30 patients (accounting for 20.1%) sphenoid sinus had 01 septum right deviation from the crest (group IIb), 41 patients (accounting for 27.5%) sphenoid sinus had 01 septum that deviated to the left from the crest (group IIc) and 25 patients (accounting for 16.8%) sphenoid sinus had >01 septum. There was no statistically significant difference in age or sex for each type of sphenoidal septum. Conclusion: The sphenoidal septum needs to be fully evaluated on MSCT of the paranasal sinuses prior to surgery to avoid potential complications due to anatomical changes in endoscopic sinus surgery.
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Keywords
posterior paranasal sinus, multi-slice computed tomography, septum of sphenoid sinus.
References
2. Cashman EC, McMahon PJ, Smyth D. Computed tomography scans of paranasal sinuses before functional endoscopic sinus surgery. World J Radiol. 2011; 3(8): 199-204.
3. Unlu A, Meco C, Ugur HC, Comert A, Ozdemir M, Elhan A. Endoscopic Anatomy of Sphenoid Sinus for Pituitary Surgery. Clinical Anatomy. 2008; 21:627–632.
4. Kölln KA, Senior BA. Conventional and Endoscopic Approaches to the Pituitary. In: Rhinology and Facial Plastic Surgery. Stucker FJ. De Souza C. Kenyon GS. Lian TS. Draf WS. (Eds.): Springer-Verlag Berlin Heidelberg, 2009; 485-490.
5. Casiano RR. Anterior skull base resection. In: Endoscopic sinus surgery manual. Marel Dekker Inc, New York, 2002.
6. Idowu OE, Balogun BO, Okoli CA. Dimensions, septation, and pattern of pneumatization of the sphenoidal sinus. Folia Morphol. 2009; 68(4):228-232.
8. Abdullah BJ, Arasaratnam S, Kumar G, Gopala K. The sphenoid sinuses: computed tomography assessment of septation, relationship to the internal carotid arteries, and sidewall thickness in the Malaysian population. J HK Coll Radiol. 2001; 4:185-188.
9. Couldwell WT. Transsphenoidal and transcranial surgery for pituitary adenomas. J Neurooncol 2004; 69 (1-3): 237-256.
10. Delano MC, Fun FY, Zinrich SJ. Relationship of the optic nerve to the posterior paranasal sinuses. Am J Neuroradiol. 1996; 17:669-675.