• World Neurosurg · Jul 2020

    Lessons Learned in Using Laser Interstitial Thermal Therapy (LITT) for Treatment of Brain Tumors: A Case Series of 238 Patients from A Single Institution.

    • Jianning Shao, Nathan R Radakovich, Matthew Grabowski, Hamid Borghei-Razavi, Konrad Knusel, Krishna C Joshi, Baha'eddin A Muhsen, Lee Hwang, Gene H Barnett, and Alireza M Mohammadi.
    • Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, Ohio, USA; Case Western School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA.
    • World Neurosurg. 2020 Jul 1; 139: e345-e354.

    BackgroundLaser interstitial thermal therapy (LITT) is a novel, minimally invasive alternative to craniotomy, and as with any new technology, comes with a learning curve.ObjectiveWe present our experience detailing the evolution of this technology in our practice in one of the largest patient cohorts to date regarding LITT in neuro-oncology.MethodsWe reviewed 238 consecutive patients with brain tumor treated with LITT at our institution. Data on patient, surgery and tumor characteristics, and follow-up were collected. Patients were categorized into 2 cohorts: early (<2014, 100 patients) and recent (>2015, 138 patients). Median follow-up for the entire cohort was 8.4 months.ResultsThe indications for LITT included gliomas (70.2%), radiation necrosis (21.0%), and metastasis (8.8%). Patient demographics stayed consistent between the 2 cohorts, with the exception of age (early, 54.3; recent, 58.4; P = 0.04). Operative time (6.6 vs. 3.5; P < 0.001) and number of trajectories (53.1% vs. 77.9% with 1 trajectory; P < 0.001) also decreased in the recent cohort. There was a significant decrease in permanent motor deficits over time (15.5 vs. 4.4%; P = 0.005) and 30-day mortality (4.1% vs. 1.5%) also decreased (not statistically significant) in the recent cohort. In terms of clinical outcomes, poor preoperative Karnofsky Performance Status (≤70) were significantly correlated with increased permanent deficits (P = 0.001) and decreased overall survival (P < 0.001 for all time points).ConclusionsWe observed improvement in operative efficiency and permanent deficits over time and also patients with poor preoperative Karnofsky Performance Status achieved suboptimal outcomes with LITT. As many other treatment modalities, patient selection is important in this procedure.Copyright © 2020 Elsevier Inc. All rights reserved.

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