AIMS: To assess the course of visual function after neurosurgical decompression of the optic nerve during resection of intracranial tumours. To obtain information that may be used to counsel patients. METHODS: A retrospective review of the acuity and visual fields of 27 patients undergoing neurosurgical decompression of 36 optic nerves in a regional neurosurgical centre. Two groups were considered, those undergoing craniotomy for sphenoid wing meningioma en plaque, and those undergoing an extended transbasal approach to intracranial tumours. RESULTS: At the last follow-up (1-97 months), improvement in acuity was seen in 47% of eyes with decompressed nerves. One-third of these showed late improvement, and two-thirds showed immediate improvement. In total, 20% of eyes had worse acuity at the last follow-up compared with preoperative values, just under one-third of these showed late deterioration, and the remainder showed immediate deterioration. In total, 33% of eyes achieved acuities equal to those recorded preoperatively, 6% improving to this level postoperatively. CONCLUSIONS: The majority of eyes in this study maintained or improved acuity after decompression. A proportion of eyes continue to improve after surgery, and a proportion deteriorate. There is no relation between duration of preoperative symptoms or the level of preoperative acuity and the change in acuity achieved.
AIMS: To assess the course of visual function after neurosurgical decompression of the optic nerve during resection of intracranial tumours. To obtain information that may be used to counsel patients. METHODS: A retrospective review of the acuity and visual fields of 27 patients undergoing neurosurgical decompression of 36 optic nerves in a regional neurosurgical centre. Two groups were considered, those undergoing craniotomy for sphenoid wing meningioma en plaque, and those undergoing an extended transbasal approach to intracranial tumours. RESULTS: At the last follow-up (1-97 months), improvement in acuity was seen in 47% of eyes with decompressed nerves. One-third of these showed late improvement, and two-thirds showed immediate improvement. In total, 20% of eyes had worse acuity at the last follow-up compared with preoperative values, just under one-third of these showed late deterioration, and the remainder showed immediate deterioration. In total, 33% of eyes achieved acuities equal to those recorded preoperatively, 6% improving to this level postoperatively. CONCLUSIONS: The majority of eyes in this study maintained or improved acuity after decompression. A proportion of eyes continue to improve after surgery, and a proportion deteriorate. There is no relation between duration of preoperative symptoms or the level of preoperative acuity and the change in acuity achieved.
Authors: Timothy R DeKlotz; S Tonya Stefko; Juan C Fernandez-Miranda; Paul A Gardner; Carl H Snyderman; Eric W Wang Journal: J Neurol Surg B Skull Base Date: 2016-06-02
Authors: Leonid M Zukin; Eric M Hink; Sophie Liao; Anne E Getz; Todd T Kingdom; Vijay R Ramakrishnan Journal: Otolaryngol Head Neck Surg Date: 2017-07-11 Impact factor: 3.497
Authors: Min Jee Lee; Min Ho Kang; Jong Hun Yeom; Hoseok Yeom; Mincheol Seong; Heeyoon Cho; Yong Un Shin Journal: Medicine (Baltimore) Date: 2018-11 Impact factor: 1.817