Abstract
Background
Sodium fluorescein (fluorescein) crosses a disrupted blood-brain barrier similarly to gadolinium contrast in contrast-enhancing cerebral tumors. When exposed to light with 560 nm wavelength during surgery, fluorescein emits a yellow-green fluorescent light that can be visualized through an operating microscope equipped with an appropriate emission filter. The distribution of the fluorescence correlates with the contrast on a gadolinium contrast-enhanced MRI.
Objective
The objective of this single-center retrospective study was to investigate if the use of fluorescein would increase the extent of resection and to examine if fluorescein guided resection influences postoperative neurological status.
Methods
During the study period from August 2014 to August 2018, 117 patients were operated for cerebral metastases. Of these, 56 operations were guided by fluorescein and 61 by traditional white light. All patients had an early postoperative MRI within 72 h after surgery.
Results
The use of fluorescein increased the extent of resection in patients with cerebral metastases. The use of fluorescein was not associated with increased postoperative sequelae or neurological damage regardless of underlying primary cancer.
Conclusion
Fluorescein is a helpful supplement in the neurosurgical treatment of cerebral metastases.
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Abbreviations
- MRI:
-
Magnetic resonance imaging
- RANO:
-
Response assessment in neuro-oncology
- EOR:
-
Extent of resection
- ICD 10:
-
International Statistical Classification of Diseases and Related Health Problems, 10th Revision
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Acknowledgements
The assistance of Claire Gudex (BRIDGE) in the editing of this manuscript is greatly appreciated. The guidance of Pia Veldt Larsen on the biostatistics of this study.
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Kofoed, M.S., Pedersen, C.B., Schulz, M.K. et al. Fluorescein-guided resection of cerebral metastases is associated with greater tumor resection. Acta Neurochir 164, 451–457 (2022). https://doi.org/10.1007/s00701-021-04796-1
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DOI: https://doi.org/10.1007/s00701-021-04796-1