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Year : 2015  |  Volume : 10  |  Issue : 3  |  Page : 139-144

The role of awake craniotomy in reducing intraoperative visual field deficits during tumor surgery

Department of Neurological Surgery, University of Miami, Florida, USA

Correspondence Address:
Ricardo J. Komotar
Department of Neurological Surgery,1321 NW 14th Street, University of Miami Hospital, West Building, Suite 306, Miami, FL 33125
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Source of Support: Nil, Conflict of Interest: None declared.

DOI: 10.4103/1793-5482.161189

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Objective: Homonymous hemianopia due to damage to the optic radiations or visual cortex is a possible consequence of tumor resection involving the temporal or occipital lobes. The purpose of this review is to present and analyze a series of studies regarding the use of awake craniotomy (AC) to decrease visual field deficits following neurosurgery. Materials and Methods: A literature search was performed using the Medline and PubMed databases from 1970 and 2014 that compared various uses of AC other than intraoperative motor/somatosensory/language mapping with a focus on visual field mapping. Results: For the 17 patients analyzed in this study, 14 surgeries resulted in quadrantanopia, 1 in hemianopia, and 2 without visual deficits. Overall, patient satisfaction with AC was high, and AC was a means to reduce surgery-related complications and cost related with the procedure. Conclusion: AC is a safe and tolerable procedure that can be used effectively to map optic radiations and the visual cortices in order to preserve visual function during resection of tumors infiltrating the temporal and occipital lobes. In the majority of cases, a homonymous hemianopia was prevented and patients were left with a quadrantanopia that did not interfere with daily function.

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