• World Neurosurg · Jul 2023

    Multicenter Study

    Single-Institution Comparative Study of MR-guided Laser Interstitial Thermal Therapy and Open Corpus Callosotomy.

    • Josue D Ordaz, Ramana Vishnubhotla, Anthony Alfonso, Hailey Budnick, Qiuting Wen, Rupa Radhakrishnan, and Jeffrey Raskin.
    • Department of Neurological Surgery, Indiana University, Indianapolis, Indiana, USA.
    • World Neurosurg. 2023 Jul 1; 175: e326e335e326-e335.

    ObjectiveOpen corpus callosotomy (CC) poses a higher risk of perioperative morbidity than does magnetic resonance-guided laser interstitial thermal therapy (MRgLITT) for treatment of drop and generalized seizures without documented superiority. We present a single-institution comparison between open and MRgLITT CC.MethodsA 2-year retrospective review was performed of patients who underwent open and MRgLITT CC (January 2019-January 2021). Demographics, surgical outcome data, hospital costs, and interhemispheric connectivity with diffusion tensor imaging were compared.ResultsThe average age in years was 9.3 and 11.4 for CC (n = 4) and MRgLITT (n = 9), respectively. Preoperative drop seizure frequency was higher in CC (25 vs. 14.5 seizures/day; P = 0.59). At 10 months follow-up, the reduction in drop seizure frequency was better in open CC, but not statistically significant (93.8% vs. 64.3%; P = 0.21). The extent of CC ablation did not correlate with seizure reduction (Pearson coefficient = 0.09). An inverse correlation between interhemispheric connectivity change (diffusion tensor imaging analysis) and drop seizure frequency reduction was noted (Pearson coefficient = -0.97). Total hospital cost was significantly lower in MRgLITT ($67,754 vs. $107,111; P = 0.004), attributed to lower intensive care unit (1.1 vs. 4 days; P= 0.004) and total hospital stay (1.8 vs. 10.5 days; P = 0.0001). Postoperative hydrocephalus was present in 75% of patients in the CC group compared with zero in the MRgLITT group.ConclusionsOur middle-volume single-institution experience shows the safety, efficacy, and cost-effective benefit of MRgLITT compared with the traditional CC with therapeutic equipoise. This study is limited by the number of patients and, hence, further patient enrollment or multicenter study is warranted.Copyright © 2023 Elsevier Inc. All rights reserved.

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