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JOURNAL ARTICLE
REVIEW
SYSTEMATIC REVIEW
A systematic review of stereotactic radiofrequency ablation for hypothalamic hamartomas.
Journal of the Neurological Sciences 2021 May 16
BACKGROUND: The seizure activity associated with hypothalamic hamartomas (HHs) is refractory to medical management and surgical intervention is often required. Stereotactic Radiofrequency Ablation (SRFA) is a minimally invasive technique offering targeted lesion ablation with a reduced risk of complications.
OBJECTIVE: Here, we review the current literature on the use of SRFA for HHs.
METHODS: This study was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines for systematic literature review. A database search of PubMed, Cochrane, Embase, and Web of Science was conducted in July 2020.
RESULTS: A total of 12 articles were included in this review, showing outcomes for 185 unique patients. Of these patients, 142 (76.8%) experienced some extent of therapeutic benefit in alleviating seizures following SRFA, with 128 (69.2%) patients achieving complete freedom from seizures. Common transient complications included hyponatremia (52 patients, 28.1%), hyperphagia (48 patients, 25.9%), hyperthermia (47 patients, 25.4%), Horner's syndrome (103 patients, 55.7%), and weight gain (75 patients, 40.5%).
CONCLUSIONS: SRFA is a potential therapy for patients with HHs, especially when resection confers significant risk to surrounding structures. Multiple rounds of SRFA treatment may be needed in approximately a quarter of patients to improve gelastic seizure outcomes but may not affect non-gelastic seizures. There is limited data on the use of SRFA for HHs and further case series and clinical trials are needed to establish the use of SRFA for HHs.
OBJECTIVE: Here, we review the current literature on the use of SRFA for HHs.
METHODS: This study was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines for systematic literature review. A database search of PubMed, Cochrane, Embase, and Web of Science was conducted in July 2020.
RESULTS: A total of 12 articles were included in this review, showing outcomes for 185 unique patients. Of these patients, 142 (76.8%) experienced some extent of therapeutic benefit in alleviating seizures following SRFA, with 128 (69.2%) patients achieving complete freedom from seizures. Common transient complications included hyponatremia (52 patients, 28.1%), hyperphagia (48 patients, 25.9%), hyperthermia (47 patients, 25.4%), Horner's syndrome (103 patients, 55.7%), and weight gain (75 patients, 40.5%).
CONCLUSIONS: SRFA is a potential therapy for patients with HHs, especially when resection confers significant risk to surrounding structures. Multiple rounds of SRFA treatment may be needed in approximately a quarter of patients to improve gelastic seizure outcomes but may not affect non-gelastic seizures. There is limited data on the use of SRFA for HHs and further case series and clinical trials are needed to establish the use of SRFA for HHs.
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