The Visual Outcome of Pituitary Macroadenoma After Surgery: 5-year-experience
Keywords:
Pituitary macroadenoma, visual outcome, predictive factors of visual recoveryAbstract
Background: Pituitary adenoma reported an overall prevalence 10-17% of brain tumors. The most common presentation of pituitary macroadenoma is visual impairment by tumor compressed to optic chiasm. The standard treatment of pituitary macroadenoma is surgery for optic chiasm decompression in order to improve visual function.
Objective: We aimed to study the visual outcome of patients with pituitary macroadenoma after surgery and the predictive factors of visual recovery.
Methods: This retrospective study included patients with pituitary tumors larger than 1 centimeter who underwent surgery from 2017 to 2020. Data were collected from medical records.
Results: Of the 100 patients included in the study, 82% present with visual disturbances. Transsphenoidal surgery was performed in 88% of patients. After surgery, 78% of patients showed overall visual improvement. Factors affecting visual outcomes after surgery included preoperative visual impairment (VIS level 3) and invasive pituitary features, which were associated with poor postoperative visual function (P = 0.01 and P = 0.03, respectively). Patients who underwent surgery using the transsphenoidal approach had a significantly higher overall visual function improvement rate of 89.7% (P = 0.02).
Conclusions: Patients with pituitary macroadenoma commonly presentation with visual but most patients show improvement in visual function after surgical treatment. Factors affecting visual function after surgery include the patient’s preoperative vision acuity, the presence of invasive pituitary features, and the surgical approach used (specifically, the transsphenoidal approach)
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