Abstract
Background
Cerebral metastases (CM) are the most common intracranial tumors; several studies have underlined the fundamental role of neurosurgical lesion removal.
Method
We describe the surgical resection of a left frontal single metastasis. We attempted to achieve a radical resection under the intraoperative guidance of fluorescein, with the aid of intraoperative neurological monitoring. This technique can be applied to each contrast enhancing, intra-axial, infiltrative lesion.
Conclusion
Fluorescein-guided surgery is a valuable tool in CM surgery to increase the rate of resection; further prospective evaluation of the role of fluorescein in this field is in planning, aiming to study the prognostic impact.
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Data availability
The data presented in this study are available on request from the authors.
Abbreviations
- BBB:
-
Blood-brain barrier
- CM:
-
Cerebral metastases
- CUSA:
-
Cavitron ultrasound aspirator
- SF:
-
Sodium fluorescein
- TcMEP:
-
Transcranial motor evoked potentials
References
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Acknowledgements
The authors thank all the neurophysiologists and technicians for their valuable work during eloquent tumor removal and, in particular, Paola Lanteri and Valentina Catanzaro for their contribution in this specific case and during manuscript production.
Funding
This study was partially supported by the Associazione Paolo Zorzi per le Neuroscienze, ONLUS and by the Italian Ministry of Health (RRC).
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Dr. Francesco Acerbi received honoraria from Carl Zeiss Meditec for lectures in International Meetings.
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Key Points
(1) Select for neurosurgery the correct patient after a multidisciplinary discussion with a shared therapeutic rationale.
(2) Strong collaboration with neurophysiologists during surgical procedure.
(3) Fluorescein injection at the standardized low dose of 5 mg/kg, immediately upon completion of general anesthesia; take care to discuss with the patient regarding the advantages of this dye and the related low risks.
(4) Use neuronavigation to tailor surgical approach and craniotomy.
(5) Start from enucleation and en-bloc removal of the lesion.
(6) Prosecute by aspirating the infiltrative micro-metastases, detectable with YELLOW560 filter activated.
(7) Indocyanine green video-angiography could be safely performed to study major vessels: both dyes are compatible.
(8) Perform hemostasis under white-light illumination after arterial pressure challenge.
(9) Finally check resection borders comparing white light and YELLOW560 visualization.
(10) An early postoperative MRI is mandatory, and an oncological follow-up is necessary to guarantee the adequate path of care.
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Acerbi, F., Broggi, M., Ferroli, P. et al. Fluorescein-guided resection of a left frontal pre-rolandic cerebral metastasis: how I do it. Acta Neurochir 165, 2519–2524 (2023). https://doi.org/10.1007/s00701-023-05635-1
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DOI: https://doi.org/10.1007/s00701-023-05635-1