PMID- 37010324 OWN - NLM STAT- MEDLINE DCOM- 20230816 LR - 20240404 IS - 1524-4040 (Electronic) IS - 0148-396X (Print) IS - 0148-396X (Linking) VI - 93 IP - 3 DP - 2023 Sep 1 TI - A Systematic Review Comparing Focused Ultrasound Surgery With Radiosurgery for Essential Tremor. PG - 524-538 LID - 10.1227/neu.0000000000002462 [doi] AB - BACKGROUND: Focused ultrasound (FUS-T) and stereotactic radiosurgery thalamotomy (SRS-T) targeting the ventral intermediate nucleus are effective incisionless surgeries for essential tremor (ET). However, their efficacy for tremor reduction and, importantly, adverse event incidence have not been directly compared. OBJECTIVE: To present a comprehensive systematic review with network meta-analysis examining both efficacy and adverse events (AEs) of FUS-T vs SRS-T for treating medically refractory ET. METHODS: We conducted a systematic review and network meta-analysis according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, using the PubMed and Embase databases. We included all primary FUS-T/SRS-T studies with approximately 1-year follow-up, with unilateral Fahn-Tolosa-Marin Tremor Rating Scale or Clinical Rating Scale for Tremor scores prethalamotomy/post-thalamotomy and/or AEs. The primary efficacy outcome was Fahn-Tolosa-Marin Tremor Rating Scale A+B score reduction. AEs were reported as an estimated incidence. RESULTS: Fifteen studies of 464 patients and 3 studies of 62 patients met inclusion criteria for FUS-T/SRS-T efficacy comparison, respectively. Network meta-analysis demonstrated similar tremor reduction between modalities (absolute tremor reduction: FUS-T: -11.6 (95% CI: -13.3, -9.9); SRS-T: -10.3 (95% CI: -14.2, -6.0). FUS-T had a greater 1-year adverse event rate, particularly imbalance and gait disturbances (10.5%) and sensory disturbances (8.3%). Contralateral hemiparesis (2.7%) often accompanied by speech impairment (2.4%) were most common after SRS-T. There was no correlation between efficacy and lesion volume. CONCLUSION: Our systematic review found similar efficacy between FUS-T and SRS-T for ET, with trend toward higher efficacy yet greater adverse event incidence with FUS-T. Smaller lesion volumes could mitigate FUS-T off-target effects for greater safety. CI - Copyright (c) Congress of Neurological Surgeons 2023. All rights reserved. FAU - Kondapavulur, Sravani AU - Kondapavulur S AUID- ORCID: 0000-0002-4412-5978 AD - Department of Neurological Surgery, UCSF, San Francisco , California , USA. AD - Medical Scientist Training Program, UCSF, San Francisco , California , USA. FAU - Silva, Alexander B AU - Silva AB AD - Department of Neurological Surgery, UCSF, San Francisco , California , USA. AD - Medical Scientist Training Program, UCSF, San Francisco , California , USA. FAU - Molinaro, Annette M AU - Molinaro AM AD - Department of Neurological Surgery, UCSF, San Francisco , California , USA. FAU - Wang, Doris D AU - Wang DD AUID- ORCID: 0000-0002-5336-1702 AD - Department of Neurological Surgery, UCSF, San Francisco , California , USA. LA - eng GR - T32 GM007618/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Meta-Analysis PT - Research Support, N.I.H., Extramural PT - Systematic Review DEP - 20230403 PL - United States TA - Neurosurgery JT - Neurosurgery JID - 7802914 SB - IM EIN - Neurosurgery. 2024 Jan 1;94(1):e17. PMID: 37888997 MH - Humans MH - *Essential Tremor/surgery MH - Magnetic Resonance Imaging MH - *Radiosurgery/adverse effects MH - Thalamus/surgery MH - Treatment Outcome MH - Tremor/surgery MH - *Ultrasonic Surgical Procedures MH - Network Meta-Analysis PMC - PMC10553193 EDAT- 2023/04/04 06:00 MHDA- 2023/08/16 06:43 PMCR- 2024/04/03 CRDT- 2023/04/03 09:13 PHST- 2022/11/16 00:00 [received] PHST- 2023/01/26 00:00 [accepted] PHST- 2023/08/16 06:43 [medline] PHST- 2023/04/04 06:00 [pubmed] PHST- 2023/04/03 09:13 [entrez] PHST- 2024/04/03 00:00 [pmc-release] AID - 00006123-202309000-00006 [pii] AID - NEU-D-22-01552 [pii] AID - 10.1227/neu.0000000000002462 [doi] PST - ppublish SO - Neurosurgery. 2023 Sep 1;93(3):524-538. doi: 10.1227/neu.0000000000002462. Epub 2023 Apr 3.