• World Neurosurg · Oct 2022

    Review

    Laser Interstitial Thermal Therapy for Cerebral Cavernous Malformations: A Systematic Review of Indications, Safety, and Outcomes.

    • Christian Ogasawara, Gina Watanabe, Kurtis Young, Royce Kwon, Andie Conching, Paolo Palmisciano, Peter Kan, and de Oliveira SilleroRafaelRDepartment of Neurological Surgery, University of Texas Southwestern Medical Center, Dallas, Texas, USA..
    • Division of Neurosurgery, John A. Burns School of Medicine, University of Hawai'i, Honolulu, Hawai'i, USA. Electronic address: cogasawa@hawaii.edu.
    • World Neurosurg. 2022 Oct 1; 166: 279287.e1279-287.e1.

    BackgroundCerebral cavernous malformations (CCM) in deep eloquent areas present a surgical challenge. Laser interstitial thermal therapy (LITT) may present itself as a safe minimally invasive treatment option.ObjectiveTo systematically review the indications, safety, and outcomes of LITT for CCM.MethodsElectronic databases were searched from inception to October 7, 2021 for articles with CCM and LITT keywords. Studies describing CCMs treated with LITT were included.ResultsA total of 32 patients with CCMs in lobar (79%), basal ganglia (12%), and brainstem (9%) locations were treated with LITT. Indications for LITT included drug-resistant seizures (75%), unacceptable surgical risk (22%), recurrent hemorrhage (16%), and early intervention to discontinue antiepileptic drugs (3%). No death or CCM-associated intracranial hemorrhage occurred intraoperatively or postoperatively, and most patients experienced no adverse effects or transient effects that resolved at follow-up (84%). Of those treated for CCM-associated epilepsy, 83% experienced Engel class I seizure freedom and most were class IA (61%). Most patients experienced symptomatic improvement (93%), and a decrease in antiepileptic drugs was reported in more than half of patients (56%), with 28% able to discontinue all antiepilepsy medications after LITT.ConclusionsLITT seems to be a safe treatment for CCMs located in deep eloquent areas and in lesions presenting with medically refractory seizures or recurrent hemorrhages. Randomized studies are needed to further elucidate its efficacy in treating CCM.Copyright © 2022 Elsevier Inc. All rights reserved.

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