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  • Title: Visual outcome after fronto-temporo-orbito-zygomatic approach combined with early extradural and intradural optic nerve decompression in tuberculum and diaphragma sellae meningiomas.
    Author: Mortini P, Barzaghi LR, Serra C, Orlandi V, Bianchi S, Losa M.
    Journal: Clin Neurol Neurosurg; 2012 Jul; 114(6):597-606. PubMed ID: 22225973.
    Abstract:
    OBJECT: The surgical challenge of the treatment of tuberculum (TSMs) and diaphragma sellae meningiomas (DSMs) is to preserve or improve the visual function. Extradural and intradural optic nerve decompression should reduce surgical trauma of the nerve achieving a good visual result. METHODS: We reported 37 consecutive TSMs and DSMs operated through fronto-temporo-orbito-zygomatic approach with extradural unroofing of the optical canal and early intradural incision of the dural sheath. Visual data were recorded measuring the visual impairment score (VIS), the visual acuity (VA), the visual field (VF) and the postoperative improvement. RESULTS: A good visual outcome (VIS improved or unchanged) was obtained in 97.2% of patients (35/36). The evaluation of 72 eyes showed a good outcome (VA and VF unchanged or improved) in 98.6% (71/72 eyes). The degree of preoperative VA and VF impairment was the only factor correlating with the postoperative improvement of VA (P<.001 and P=.018) and VF defect (P<.001). Worsening of visual function occurred in 1/37 patient (2.7%). CONCLUSION: Using this surgical technique we achieved a high improvement rate of visual defects and a low frequency of worsening.
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