Fluorescence guidance in skull base surgery: Applications and limitations - A systematic review.

Intraoperative fluorescence guidance is a well-established surgical adjunct in high-grade glioma surgery. In contrast, the clinical use of such dyes and technology has been scarcely reported in skull base surgery. We aimed to systematically review the clinical applications of different fluorophores in both open and endonasal skull base surgery. We performed a systematic review and discussed the current literature on fluorescence guidance in skull base surgery. After a comprehensive literature search, 77 articles on skull base fluorescence guidance were evaluated. A qualitative analysis of the articles is presented, discussing clinical indications and current controversies. The use of intrathecal fluorescein was the most frequently reported in the literature. Beyond that, 5-ALA and ICG were two other fluorescent dyes most extensively discussed, with some experimental fluorophore applications in skull base surgery. Intraoperative fluorescence imaging can serve as an adjunct technology in skull base surgery. The scope of initial indications of these fluorophores has expanded beyond malignant glioma resection alone. We discuss current use and controversies and present an extensive overview of additional indications for fluorescence imaging in skull base pathologies. Further quantitative studies will be needed in the future, focusing on tissue selectivity and time-dependency of the different fluorophores currently commercially available, as well as the development of new compounds to expand applications and facilitate skull base surgeries.

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© 2024 The Authors.

Déclaration de conflit d'intérêts

The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Eric Suero Molina reports a relationship with Carl Zeiss Meditec AG that includes: funding grants. Walter Stummer has received speaker and consultant fees from Medac, Carl Zeiss Meditec AG, Leica Microsystems, Photonamic, and NXDC and funding grants from Carl Zeiss Meditec AG. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.