Optic foramen location on computed tomography.

BACKGROUND: This study aimed to identify the location of the optic foramen in relation to the anterior sphenoid sinus wall, which is essential information for surgeons in planning and performing endoscopic transnasal surgery. METHODS: Computed tomography scans of 200 orbits from 100 adult patients with no abnormalities were examined. The results included the location of the optic foramen in relation to the anterior sphenoid sinus wall and the distance between them, as well as the distance from the optic foramen and the anterior sphenoid sinus wall to the carotid prominence in the posterior sphenoid sinus. RESULTS: The optic foramen was anterior to the anterior sphenoid sinus wall in 48.5% of orbits, and posterior in the remaining 51.5%. The mean distance from the optic foramen to the anterior sphenoid sinus wall was 3.82 ± 1.25 mm. The mean distances from the optic foramen and the anterior sphenoid sinus wall to the carotid prominence were 7.67 ± 1.73 and 7.95 ± 2.53 mm, respectively. CONCLUSION: The optic foramen was anterior to the anterior wall of the sphenoid sinus in approximately half of the orbits examined in this study, and posterior in the remaining half. The mean distance from the optic foramen to the anterior sphenoid sinus wall of the sphenoid sinus was 3.82 ± 1.25 mm.

Nasal septal abscess in adult patients - A single center study.

PURPOSES: The purpose of this study was to present and analyze the etiologic factors, clinical manifestations, bacteriology, and treatment outcomes of nasal septal abscess in a large cohort of adult patients. MATERIAL AND METHODS: Retrospective analysis. RESULTS: 36 adult patients, age from 19 to 85 (mean age, 51.83), with nasal septal abscesses were treated at Ear Nose Throat Hospital of Ho Chi Minh City from January 2020 to August 2022. The most common symptoms were nasal obstruction (75 %), headache/facial pain (58.33 %). Etiologic factors were found in 83.33 % of cases with the most common were diabetes mellitus (47.22 %), nose-picking (44.44 %). 75 % of cases had positive bacterial culture, of which 70.37 % were Staphylococcus aureus. Septal abscess was successfully treated in all cases using our treatment protocol, which involved an extended modified Killian's incision, irrigation with 1 % poviodine, placement of gauze in the abscess pocket, and nasal packing with Merocels. CONCLUSIONS: Diabetes and nose-picking were the most common etiologic factors; Staphylococcus aureus was the most common organism of nasal septal abscess in our study. Our treatment protocol is safe and effective.