Hypothalamic hamartomas are relatively rare, non-neoplastic congenital malformations. With conventional MR images alone, small hypothalamic hamartomas may be difficult to diagnose because of artifacts from cerebrospinal fluid. We present the usefulness of three-dimensional constructive interference in steady state sequence for evaluating small hypothalamic hamartomas in three pediatric patients.
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A proposed new classification system of hypothalamic hamartomas in the era of stereotactic ablation surgery.
J Neurosurg
December 2024
3Department of Neurosurgery, Niigata Seiro Hospital, Seiro, Niigata, Japan.
Objective: Since the recent development of stereotactic ablation surgery, which can provide good seizure outcomes without limitations in size or location, conventional classification systems have become unsuitable for surgical guidance. The present study aimed to evaluate the validity of a newly proposed classification system focusing on the attachment pattern.
Methods: This retrospective study investigated 218 patients with hypothalamic hamartomas who underwent MRI-guided stereotactic radiofrequency thermocoagulation and were followed for at least 1 year after their last surgery.
Outcome of Surgery for Hypothalamic Hamartoma-Related Epilepsy: A Systematic Review and Individual Participant Data Meta-Analysis.
Neurology
December 2024
From the Department of Medicine (F.N.), Université de Montréal, Québec, Canada; David Geffen School of Medicine at the University of California, Los Angeles (K.G., A.F.); Warren Alpert Medical School of Brown University (J.-S.C.), Providence, RI; Division of Neurology (A.H.), Department of Pediatrics, Sainte-Justine University Hospital Centre, Montréal; Brain and Development Research Axis (A.H., A.G.W.), Centre de Recherche Azrieli du CHU Sainte-Justine, Montréal; Department of Neuroscience (M.R.K., D.K.N.), Université de Montréal; Research Centre of the University of Montreal Hospital Center (CRCHUM) (M.R.K., D.K.N.); Division of Neurology (M.R.K., D.K.N.), University of Montreal Hospital Center (CHUM); Laboratoire d'Imagerie Optique en Neurodéveloppement (LIONlab) (A.G.), CHU Sainte-Justine Research Center, Montréal; Cerebrum (A.G.), Department of Psychology, Université de Montréal, Québec, Canada; Department of Neurological Surgery (N.S.), Northwestern University Feinberg School of Medicine, Chicago, IL; Neuroscience Advanced Clinical Imaging Service (NACIS) (J.Y.-M.Y.), Department of Neurosurgery, The Royal Children's Hospital; Department of Paediatrics (J.Y.-M.Y.), The University of Melbourne; Neuroscience Research (J.Y.-M.Y.), Murdoch Children's Research Institute, Melbourne, Australia; Hope for Hypothalamic Hamartomas Organization (L.S., E.W.); APHM (B.D., D.S.), Timone Hospital, Epileptology and Cerebral Rhythmology, Marseille, France; Jane and John Justin Institute for Mind Health (M.S.P.), Cook Children's Health Care System, Fort Worth, TX; Division of Neurosurgery (K.M., G.M.I.), Hospital for Sick Children; Neurosciences & Mental Health (K.M., G.M.I.), SickKids Research Institute, Toronto, Ontario, Canada; Center for Neuroscience Research (W.D.G.), and Department of Neurology (W.D.G.), Children's National Hospital, George Washington University School of Medicine, Washington, DC; Department of Neurosurgery (D.M.), Université de Sherbrooke, Quebec, Canada; Pediatric Neurology Division (J.F.K.), Barrow Neurological Institute at Phoenix Children's Hospital, AZ; and Department of Neurosurgery (A.F.), David Geffen School of Medicine at the University of California, Los Angeles; Division of Neurosurgery (A.G.W.), Department of Surgery, Sainte-Justine University Hospital Centre, Montréal; Division of Neurosurgery (A.G.W.), Department of Surgery, University of Montreal Hospital Center (CHUM), Montréal, Québec, Canada.
Background And Objectives: There is a paucity of data directly comparing the outcome of surgical techniques available for the treatment of hypothalamic hamartomas (HHs). This study aims to evaluate the safety and efficacy of commonly used surgical approaches in the treatment of HH-related epilepsy.
Methods: A systematic review and individual participant data (IPD) meta-analysis was conducted.
The "Hand-as-Foot" teaching method in Hypothalamic Hamartoma.
Asian J Surg
November 2024
The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, People's Republic of China. Electronic address:
Laser interstitial thermal therapy for hypothalamic-hamartoma-related epilepsy: the long-term cognitive outcome of the first pediatric case in Europe.
Acta Neurochir (Wien)
November 2024
Department of Pediatric Neurology, Amiens-Picardie University Medical Center, Amiens, France.
Laser interstitial thermal therapy (LITT) is a minimally invasive surgical treatment for drug-resistant, focal epilepsies. With MRI guidance, LITT can also be used to treat hypothalamic hamartoma. Here, we report on the first European case of LITT for hypothalamic hamartoma.
View Article and Find Full Text PDFHow I do it: MRI-guided stereotactic navigation for Laser Interstitial Thermal Therapy.
Acta Neurochir (Wien)
November 2024
Department of Neurosurgery, Copenhagen University Hospital, Copenhagen, Denmark.
Background: MR-guided stereotaxy has emerged as a viable alternative to CT-guided frame-based or frameless approaches. By offering direct MR-guided navigation, this technique addresses most limitations inherent to CT navigation, enabling submillimeter precision.
Method: We detail the workflow of using the ClearPoint® MR navigation system for laser catheter placement in the treatment of a hypothalamic hamartoma.
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