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Anteromesial Temporal Lobectomy for Medically Intractable Temporal Lobe Epilepsy: An Operative Study
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Laser ablation for corpus callosotomy: Systematic review and pooled analysis.

Ahmed J Awad1, Kristen N Kaiser2

  • 1Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI, USA; Faculty of Medicine and Health Sciences, An-Najah National University, Palestine.

Seizure
|March 4, 2022
PubMed
Summary

Laser interstitial thermal therapy (LITT) for corpus callosotomy is a safe and feasible epilepsy treatment, offering good seizure control with low complication rates and short hospital stays. This minimally invasive approach shows promise, especially for patients with atonic seizures.

Keywords:
Corpus callosumDisconnection syndromeEpilepsyNeurosurgerySeizures

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Area of Science:

  • Neurosurgery
  • Epilepsy Treatment
  • Minimally Invasive Procedures

Background:

  • Laser interstitial thermal therapy (LITT) is increasingly used for corpus callosotomy in epilepsy patients, particularly those with atonic seizures and Lennox-Gastaut Syndrome (LGS).
  • Limited data exists regarding the safety and efficacy of LITT for this specific surgical indication.

Purpose of the Study:

  • To systematically review and conduct a pooled analysis of MRI-guided LITT for corpus callosotomy.
  • To evaluate the feasibility, clinical outcomes, and complication rates associated with this technique.

Main Methods:

  • A systematic review adhering to PRISMA guidelines was conducted.
  • Data from 10 retrospective studies involving 58 cases of MRI-guided LITT for corpus callosotomy were analyzed.

Main Results:

  • MRI-guided LITT was successfully performed in 57 cases; one was aborted due to hemorrhage.
  • Complete seizure freedom (Engel I) and excellent seizure control (Engel II) were achieved in 21.1% and 49.1% of patients, respectively.
  • For atonic seizures, complete freedom and excellent control rates were 52.5% and 72.5%. Common complications included hemorrhage (8.6%) and inaccurate placement (6.9%).

Conclusions:

  • MRI-guided LITT for corpus callosotomy is a feasible and safe procedure with low complication rates and short hospitalizations.
  • Seizure control rates are comparable to traditional surgical callosotomy, with a majority of atonic seizure patients achieving significant improvement.
  • The risk of disconnection syndrome following LITT corpus callosotomy is low.