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Kasai M, Sakuma H, Abe Y, Kuki I, Maegaki Y, Murayama K, Murofushi Y, Nagase H, Nishiyama M, Okumura A, Sakai Y, Tada H, Mizuguchi M, Takanashi JI. Clinical characteristics of SARS-CoV-2-associated encephalopathy in children: Nationwide epidemiological study. J Neurol Sci 2024; 457:122867. [PMID: 38199023 DOI: 10.1016/j.jns.2024.122867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 11/29/2023] [Accepted: 01/01/2024] [Indexed: 01/12/2024]
Abstract
OBJECTIVE Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) sometimes triggers acute encephalopathy as a serious neurological complication in children. We previously reported the clinico-radiological findings of SARS-CoV-2-associated encephalopathy. The advent of the SARS-CoV-2 omicron variant led to a marked increase in pediatric patients with coronavirus disease 2019 (COVID-19); however, epidemiological changes with acute encephalopathy according to the emergence of SARS-CoV-2 have not yet been documented. Therefore, the present study investigated epidemiological differences in SARS-CoV-2-associated encephalopathy during the BA.1/BA.2 and BA.5 predominant periods and also between SARS-CoV-2-associated and non-SARS-CoV-2-associated encephalopathy. METHODS We conducted a nationwide survey of SARS-CoV-2-associated encephalopathy in Japanese children between June and November 2022. We compared the present results during the BA.5 predominant period and previous findings during the BA.1/BA.2 predominant period. We also compared the clinico-radiological syndromes of encephalopathy between SARS-CoV-2-associated and non-SARS-CoV-2-associated encephalopathy. RESULTS Although many patients with SARS-CoV-2-associated encephalopathy in the BA.5 predominant period had seizures as their initial symptoms, no significant differences were observed in the clinical features. Patients with SARS-CoV-2-associated encephalopathy had worse outcomes than those with non-SARS-CoV-2-associated encephalopathy (p-value = 0.003). Among 103 patients with SARS-CoV-2-associated encephalopathy, 14 (13.6%) had severe types of acute encephalopathy, namely, encephalopathy with acute fulminant cerebral edema (AFCE) and hemorrhagic shock and encephalopathy syndrome (HSES). Also, 28 (27.2%) patients with SARS-CoV-2-associated encephalopathy had poor outcome: severe neurological sequelae or death. Ninety-five patients (92.2%) were not vaccinated against SARS-CoV-2. CONCLUSIONS In SARS-CoV-2-associated encephalopathy, high percentages of AFCE and HSES can result in poor outcomes.
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Affiliation(s)
- Mariko Kasai
- Department of Brain and Neurosciences, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, Japan.
| | - Hiroshi Sakuma
- Department of Brain and Neurosciences, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, Japan.
| | - Yuichi Abe
- Division of Neurology, National Center for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo, Japan.
| | - Ichiro Kuki
- Department of Pediatric Neurology, Osaka City General Hospital, 2-13-22 Miyakojima-hondori, Miyakojima-ku, Osaka, Japan.
| | - Yoshihiro Maegaki
- Division of Child Neurology, Institute of Neurological Sciences, Faculty of Medicine, Tottori University, 86 Nishi-cho, Yonago-shi, Tottori, Japan.
| | - Kei Murayama
- Center for Medical Genetics, Department of Metabolism, Chiba Children's Hospital, 579-1 Heta-cho, Midori-ku, Chiba-shi, Chiba, Japan..
| | - Yuka Murofushi
- Department of Pediatrics and Pediatric Neurology, Tokyo Women's Medical University Yachiyo Medical Center, 477-96 Owada Shinden, Yachiyo-shi, Chiba, Japan.
| | - Hiroaki Nagase
- Department of Pediatrics, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe City, Hyogo, Japan.
| | - Masahiro Nishiyama
- Department of Neurology, Hyogo Prefectural Kobe Children's Hospital, 1-6-7, Minatojima-minamimachi, Chuo-ku, Kobe-shi, Hyogo, Japan
| | - Akihisa Okumura
- Department of Pediatrics, Aichi Medical University School of Medicine, 1-1 Yazakokarimata, Nagakute, Aichi, Japan.
| | - Yasunari Sakai
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka, Japan
| | - Hiroko Tada
- Division of Pediatrics, Chibaken Saiseikai Narashino Hospital, 2-1-1 Miyama, Narashino-shi, Chiba, Japan
| | - Masashi Mizuguchi
- Department of Pediatrics, National Rehabilitation Center for Children with Disabilities, 1-1-10 Komone, Itabashi-ku, Tokyo, Japan.
| | - Jun-Ichi Takanashi
- Department of Pediatrics and Pediatric Neurology, Tokyo Women's Medical University Yachiyo Medical Center, 477-96 Owada Shinden, Yachiyo-shi, Chiba, Japan.
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Musto E, Gambardella ML, Perulli M, Quintiliani M, Veredice C, Verdolotti T, Berté G, Leoni C, Onesimo R, Pulitanò SM, Tartaglia M, Zampino G, Contaldo I, Battaglia DI. Status epilepticus in BRAF-related cardio-facio-cutaneous syndrome: Focus on neuroimaging clues to physiopathology. Epilepsia Open 2024; 9:258-267. [PMID: 37943120 PMCID: PMC10839340 DOI: 10.1002/epi4.12864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 11/06/2023] [Indexed: 11/10/2023] Open
Abstract
OBJECTIVE Cardio-facio-cutaneous syndrome (CFC) is a genetic disorder due to variants affecting genes coding key proteins of the Ras/MAPK signaling pathway. Among the different features of CFC, neurological involvement, including cerebral malformations and epilepsy, represents a common and clinically relevant aspect. Status epilepticus (SE) is a recurrent feature, especially in a specific subgroup of CFC patients with developmental and epileptic encephalopathy (DEE) and history of severe pharmacoresistant epilepsy. Here we dissect the features of SE in CFC patients with a particular focus on longitudinal magnetic resonance imaging (MRI) findings to identify clinical-radiological patterns and discuss the underlying physiopathology. METHODS We retrospectively analyzed clinical, electroencephalogram (EEG), and MRI data collected in a single center from a cohort of 23 patients with CFC carrying pathogenic BRAF variants who experienced SE during a 5-year period. RESULTS Seven episodes of SE were documented in 5 CFC patients who underwent EEG and MRI at baseline. MRI was performed during SE/within 72 hours from SE termination in 5/7 events. Acute/early post-ictal MRI findings showed heterogenous abnormalities: restricted diffusion in 2/7, focal area of pcASL perfusion change in 2/7, focal cortical T2/FLAIR hyperintensity in 2/7. Follow-up images were available for 4/7 SE. No acute changes were detected in 2/7 (MRI performed 4 days after SE termination). SIGNIFICANCE Acute focal neuroimaging changes concomitant with ictal EEG focus were present in 5/7 episodes, though with different findings. The heterogeneous patterns suggest different contributing factors, possibly including the presence of focal cortical malformations and autoinflammation. When cytotoxic edema is revealed by MRI, it can be followed by permanent structural damage, as already observed in other genetic conditions. A better understanding of the physiopathology will provide access to targeted treatments allowing to prevent long-term adverse neurological outcome. PLAIN LANGUAGE SUMMARY Cardio-facio-cutaneous syndrome is a genetic disorder that often causes prolonged seizures known as status epilepticus. This study has a focus on electroclinical and neuroimaging patterns in patients with cardio-facio-cutaneous syndrome. During these status epilepticus episodes, we found different abnormal brain imaging patterns in patients, indicating various causes like brain malformations and inflammation. Understanding these patterns could help doctors find specific treatments, protecting cardio-facio-cutaneous syndrome patients from long-term brain damage.
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Affiliation(s)
- Elisa Musto
- Department of Life Sciences and Public HealthUniversità Cattolica del Sacro CuoreRomeItaly
- Neurology, Epilepsy and Movement Disorders, Full member of European Reference Network EpiCAREBambino Gesù Children's Hospital, IRCCSRomeItaly
| | - Maria Luigia Gambardella
- Child Neurology and Psychiatric Unit, Fondazione Policlinico Universitario Agostino GemelliIRCCSRomeItaly
| | - Marco Perulli
- Department of Life Sciences and Public HealthUniversità Cattolica del Sacro CuoreRomeItaly
- Child Neurology and Psychiatric Unit, Fondazione Policlinico Universitario Agostino GemelliIRCCSRomeItaly
| | - Michela Quintiliani
- Child Neurology and Psychiatric Unit, Fondazione Policlinico Universitario Agostino GemelliIRCCSRomeItaly
| | - Chiara Veredice
- Child Neurology and Psychiatric Unit, Fondazione Policlinico Universitario Agostino GemelliIRCCSRomeItaly
| | - Tommaso Verdolotti
- Radiology and Neuroradiology Unit, Fondazione Policlinico Universitario Agostino GemelliIRCCSRomeItaly
| | - Giovanna Berté
- Radiology and Neuroradiology Unit, Fondazione Policlinico Universitario Agostino GemelliIRCCSRomeItaly
| | - Chiara Leoni
- Center for Rare Disease and Congenital Defects, Fondazione Policlinico Universitario Agostino GemelliIRCCSRomeItaly
| | - Roberta Onesimo
- Center for Rare Disease and Congenital Defects, Fondazione Policlinico Universitario Agostino GemelliIRCCSRomeItaly
| | - Silvia Maria Pulitanò
- Pediatric Intensive Care Unit Trauma Center Pediatric, Fondazione Policlinico Universitario Agostino GemelliIRCCSRomeItaly
| | - Marco Tartaglia
- Molecular Genetics and Functional Genomics, Ospedale Pediatrico Bambino GesùIRCCSRomeItaly
| | - Giuseppe Zampino
- Department of Life Sciences and Public HealthUniversità Cattolica del Sacro CuoreRomeItaly
- Center for Rare Disease and Congenital Defects, Fondazione Policlinico Universitario Agostino GemelliIRCCSRomeItaly
| | - Ilaria Contaldo
- Child Neurology and Psychiatric Unit, Fondazione Policlinico Universitario Agostino GemelliIRCCSRomeItaly
| | - Domenica Immacolata Battaglia
- Department of Life Sciences and Public HealthUniversità Cattolica del Sacro CuoreRomeItaly
- Child Neurology and Psychiatric Unit, Fondazione Policlinico Universitario Agostino GemelliIRCCSRomeItaly
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Mizuguchi M, Shibata A, Kasai M, Hoshino A. Genetic and environmental risk factors of acute infection-triggered encephalopathy. Front Neurosci 2023; 17:1119708. [PMID: 36761411 PMCID: PMC9902370 DOI: 10.3389/fnins.2023.1119708] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 01/09/2023] [Indexed: 01/25/2023] Open
Abstract
Acute encephalopathy is a constellation of syndromes in which immune response, metabolism and neuronal excitation are affected in a variable fashion. Most of the syndromes are complex disorders, caused or aggravated by multiple, genetic and environmental risk factors. Environmental factors include pathogenic microorganisms of the antecedent infection such as influenza virus, human herpesvirus-6 and enterohemorrhagic Escherichia coli, and drugs such as non-steroidal anti-inflammatory drugs, valproate and theophylline. Genetic factors include mutations such as rare variants of the SCN1A and RANBP2 genes, and polymorphisms such as thermolabile CPT2 variants and HLA genotypes. By altering immune response, metabolism or neuronal excitation, these factors complicate the pathologic process. On the other hand, some of them could provide promising targets to prevent or treat acute encephalopathy.
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Affiliation(s)
- Masashi Mizuguchi
- Department of Developmental Medical Sciences, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan,Department of Pediatrics, National Rehabilitation Center for Children With Disabilities, Tokyo, Japan,*Correspondence: Masashi Mizuguchi,
| | - Akiko Shibata
- Department of Developmental Medical Sciences, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan,Laboratory for Brain Development and Disorders, RIKEN Center for Brain Science, Tokyo, Japan
| | - Mariko Kasai
- Department of Developmental Medical Sciences, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan,Department of Pediatrics, Saitama Citizens Medical Center, Saitama, Japan
| | - Ai Hoshino
- Department of Developmental Medical Sciences, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan,Department of Neuropediatrics, Tokyo Metropolitan Neurological Hospital, Fuchu, Japan
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