title: Transulcal parafascicular minimally invasive approach to deep and subcortical cavernomas: technical note.
abstract: Cavernomas comprise 8%-15% of intracranial vascular lesions, usually supratentorial in location and superficial. Cavernomas in the thalamus or subcortical white matter represent a unique challenge for surgeons in trying to identify and then use a safe corridor to access and resect the pathology. Previous authors have described specific open microsurgical corridors based on pathology location, often with technical difficulty and morbidity. This series presents 2 cavernomas that were resected using a minimally invasive approach that is less technically demanding and has a good safety profile. The authors report 2 cases of cavernoma: one in the thalamus and brainstem with multiple hemorrhages and the other in eloquent subcortical white matter. These lesions were resected through a transulcal parafascicular approach with a port-based minimally invasive technique. In this series there was complete resection with no neurological complications. The transulcal parafascicular minimally invasive approach relies on image interpretation and trajectory planning, intraoperative navigation, cortical cannulation and subcortical space access, high-quality optics, and resection as key elements to minimize exposure and retraction and maximize tissue preservation. The authors applied this technique to 2 patients with cavernomas in eloquent locations with excellent outcomes.
authors.affiliation: Departments of 1 Neurological Surgery and.
authors.forename: Robert A
authors.initials: RA
authors.lastname: Scranton
authors.affiliation: Radiology, Houston Methodist Neurological Institute, Houston, Texas.
authors.forename: Steve H
authors.initials: SH
authors.lastname: Fung
authors.affiliation: Departments of 1 Neurological Surgery and.
authors.forename: Gavin W
authors.initials: GW
authors.lastname: Britz
mesh_terms: D000328:Adult; D001932:Brain Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery*; D006392:Hemangioma, Cavernous / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D008297:Male; D008866:Microsurgery / Q000379:methods; D019060:Minimally Invasive Surgical Procedures; D019635:Neurosurgical Procedures / Q000379:methods; D014656:Vascular Surgical Procedures / Q000379:methods; D055815:Young Adult
keywords: DTI = diffusion tensor imaging; ICU = intensive care unit; PLIC = posterior limb of the internal capsule; cavernoma; fMRI = functional MRI; microsurgery; minimally invasive; neural navigation; subcortical surgery; transulcal parafascicular; vascular disorders