Abstract
In this video, the authors present the microsurgical treatment of a superior petrosal dural arteriovenous fistula (dAVF) associated with a symptomatic hemorrhagic brainstem cavernous malformation in a 38-year-old male. The patient underwent a retrosigmoid craniotomy for cavernoma evacuation and fistula disconnection. Intraoperative indocyanine green angiography revealed cortical venous reflux not evident on catheter angiography, prompting reclassification to a higher-grade fistula. Postoperatively, the patient returned to neurological baseline, and follow-up imaging confirmed complete fistula obliteration, cavernoma resection, and new appearance of a developmental venous anomaly (DVA). This case highlights the dynamic nature of dAVF venous drainage and illustrates the rare co-occurrence of dAVF, DVA, and brainstem cavernoma. The video can be found here: https://stream.cadmore.media/r10.3171/2025.7.FOCVID2553.
Keywords
cavernous malformationcerebrovascular neurosurgerydural arteriovenous fistularetrosigmoid craniotomyskull base neurosurgery
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- Year
- 2025
- Type
- article
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(2025).
Meta-Learning for Adaptive Dynamical System Characterization.
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https://doi.org/10.36227/techrxiv.176300557.73524638/v2
Identifiers
- DOI
- 10.36227/techrxiv.176300557.73524638/v2
- PMID
- 41113739
- PMCID
- PMC12530638