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  • Title: Experience with 102 Frameless Stereotactic Biopsies Using the neuromate Robotic Device.
    Author: Yasin H, Hoff HJ, Blümcke I, Simon M.
    Journal: World Neurosurg; 2019 Mar; 123():e450-e456. PubMed ID: 30500594.
    Abstract:
    OBJECTIVE: Stereotactic biopsy is a standard procedure in neurosurgery. In addition to or even replacing frame-based stereotaxy, some centers also use frameless imaging-based techniques and more recently robotic systems. Here we report a retrospective analysis of our experience with 102 consecutive biopsies performed in our institution using the neuromate robotic device. METHODS: Between March 2013 and April 2018, 102 robot-assisted frameless biopsies were performed in 100 consecutive patients (median age/range: 66/7-86 years, male: 64). Target lesions were deep-seated (insula, basal ganglia, thalamus, midbrain, cerebellar peduncle) in 29 (28.4%) and/or small (<15 mm) in 24 (23.5%) cases. We retrospectively analyzed the histopathologic results as well as complications and the duration of the procedures. RESULTS: A definite histologic diagnosis could be established in 94 of 102 procedures (92.2%; 94/100 patients = 94.0%), including 67 glial and glioneuronal tumors, 16 central nervous system lymphomas, 7 metastases, 1 primitive neuroectodermal tumor, and 5 cases with inflammatory or infectious disorders. There were no infectious complications. A total of 13 cases (12.7%) suffered from biopsy-related hemorrhages >10 mm; however, persistent surgery-related neurologic worsening was seen in only 3 (2.9%). The average operating time was 10 minutes for placement of the localizing device under local anesthesia and 30 minutes for the actual biopsy procedure. CONCLUSIONS: Robot-assisted fameless stereotactic biopsies using the neuromate robot are an alternative to frame-based stereotaxy with a similar diagnostic yield and comparable complication rates.
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