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Biyani AM, Sharath V, Varma TS. Effect of Pediatric Rehabilitation on Children With Viral Encephalitis: A Case Report. Cureus 2024; 16:e57239. [PMID: 38686226 PMCID: PMC11056810 DOI: 10.7759/cureus.57239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Accepted: 03/29/2024] [Indexed: 05/02/2024] Open
Abstract
Viral encephalitis poses a significant threat to public health, particularly affecting children and the elderly. We present a case of a 1.5-year-old child with viral encephalitis, characterized by sudden convulsions following a bout of cold and fever. Comprehensive physiotherapy rehabilitation was initiated, focusing on improving mobility, strength, and functional abilities. The interventions included caregiver education, range of motion exercises, strengthening exercises, mobility training, and task-oriented activities. After treatment, there was a notable improvement in the child's clinical outcomes, as evidenced by a reduction in weakness, enhanced functional mobility, and improved scores on outcome measures such as the Pediatric Cerebral Performance Category and Functional Mobility Scale. This case highlights the importance of early physiotherapy intervention in pediatric viral encephalitis to mitigate long-term complications and optimize functional outcomes.
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Affiliation(s)
- Anushka M Biyani
- Department of Pediatric Physiotherapy, Ravi Nair Physiotherapy College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Vasanth Sharath
- Department of Pediatric Physiotherapy, Ravi Nair Physiotherapy College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Tanvi S Varma
- Department of Cardiovascular and Respiratory Physiotherapy, Ravi Nair Physiotherapy College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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Dhabalia R, Kashikar SV, Parihar PS, Mishra GV. Unveiling the Intricacies: A Comprehensive Review of Magnetic Resonance Imaging (MRI) Assessment of T2-Weighted Hyperintensities in the Neuroimaging Landscape. Cureus 2024; 16:e54808. [PMID: 38529430 PMCID: PMC10961652 DOI: 10.7759/cureus.54808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 02/24/2024] [Indexed: 03/27/2024] Open
Abstract
T2-weighted hyperintensities in neuroimaging represent areas of heightened signal intensity on magnetic resonance imaging (MRI) scans, holding crucial importance in neuroimaging. This comprehensive review explores the T2-weighted hyperintensities, providing insights into their definition, characteristics, clinical relevance, and underlying causes. It highlights the significance of these hyperintensities as sensitive markers for neurological disorders, including multiple sclerosis, vascular dementia, and brain tumors. The review also delves into advanced neuroimaging techniques, such as susceptibility-weighted and diffusion tensor imaging, and the application of artificial intelligence and machine learning in hyperintensities analysis. Furthermore, it outlines the challenges and pitfalls associated with their assessment and emphasizes the importance of standardized protocols and a multidisciplinary approach. The review discusses future directions for research and clinical practice, including the development of biomarkers, personalized medicine, and enhanced imaging techniques. Ultimately, the review underscores the profound impact of T2-weighted hyperintensities in shaping the landscape of neurological diagnosis, prognosis, and treatment, contributing to a deeper understanding of complex neurological conditions and guiding more informed and effective patient care.
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Affiliation(s)
- Rishabh Dhabalia
- Radiodiagnosis, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education & Research, Wardha, IND
| | - Shivali V Kashikar
- Radiodiagnosis, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education & Research, Wardha, IND
| | - Pratap S Parihar
- Radiodiagnosis, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education & Research, Wardha, IND
| | - Gaurav V Mishra
- Radiodiagnosis, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education & Research, Wardha, IND
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Kerzhner O, Berla E, Har-Even M, Ratmansky M, Goor-Aryeh I. Consistency of inconsistency in long-COVID-19 pain symptoms persistency: A systematic review and meta-analysis. Pain Pract 2024; 24:120-159. [PMID: 37475709 DOI: 10.1111/papr.13277] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 04/29/2023] [Accepted: 07/07/2023] [Indexed: 07/22/2023]
Abstract
INTRODUCTION Individuals recovering from acute COVID-19 episodes may continue to suffer from various ongoing symptoms, collectively referred to as Long-COVID. Long-term pain symptoms are amongst the most common and clinically significant symptoms to be reported for this post-COVID-19 syndrome. OBJECTIVES This systematic review and meta-analysis aimed to evaluate the proportions of persisting pain symptoms experienced by individuals past the acute phase of COVID-19 and to identify their associated functional consequences and inflammatory correlates. METHODS Two online databases were systematically searched from their inception until 31 March 2022. We searched primary research articles in English, which evaluated individuals after laboratory-confirmed COVID-19 acute phase resolution and specifically reported on pain symptoms and their inflammatory and/or functional outcomes. RESULTS Of the 611 identified articles, 26 were included, used for data extraction, and assessed for their methodological quality and risk of bias by two independent reviewers. Pain symptoms were grouped under one of six major pain domains, serving as our primary co-outcomes. Proportional meta-analyses of pooled logit-transformed values of single proportions were performed using the random-effects-restricted maximum-likelihood model. An estimated 8%, 6%, 18%, 18%, 17%, and 12% of individuals continued to report the persistence of chest, gastrointestinal, musculoskeletal joint, musculoskeletal muscle, general body, and nervous system-related pain symptoms, respectively, for up to one year after acute phase resolution of COVID-19. Considerable levels of heterogeneity were demonstrated across all results. Functional and quality-of-life impairments and some inflammatory biomarker elevations were associated with the persistence of long-COVID pain symptoms. CONCLUSION This study's findings suggest that although not well characterized, long-COVID pain symptoms are being experienced by non-negligible proportions of those recovering from acute COVID-19 episodes, thus highlighting the importance of future research efforts to focus on this aspect.
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Affiliation(s)
- Oleg Kerzhner
- Loewenstein Rehabilitation Medical Center, Ra'anana, Israel
| | - Einat Berla
- Israel Defense Forces Medical Corps, Ramat Gan, Israel
| | - Meirav Har-Even
- Department of Anatomy and Anthropology, School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Motti Ratmansky
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Pain Clinic, Sheba Medical Center, Ramat Gan, Israel
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Howe de la Torre S, Parlatini V, Cortese S. Long-term central nervous system (CNS) consequences of COVID-19 in children. Expert Rev Neurother 2023; 23:703-720. [PMID: 37545414 DOI: 10.1080/14737175.2023.2239500] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 07/18/2023] [Indexed: 08/08/2023]
Abstract
INTRODUCTION Neurological/neuropsychiatric symptoms are commonly reported by children/young people with long COVID, especially headache, fatigue, cognitive deficits, anosmia and ageusia, dizziness, mood symptoms, and sleep problems. However, reported prevalence estimates are highly variable due to study heterogeneity and often small sample size; most studies only considered short-term follow-ups; and, apart from mood and sleep problems, neuropsychiatric conditions have received less attention. Considering the potential debilitating effects of neurological/neuropsychiatric conditions, a comprehensive review of the topic is timely, and needed to support clinical recognition as well as to set the direction for future research. AREAS COVERED The authors discuss neurological/neuropsychiatric manifestations of long COVID in pediatric populations, with a focus on prevalence, associated demographic characteristics, and potential pathogenetic mechanisms. EXPERT OPINION Children/young people may develop persistent neurological/neuropsychiatric symptoms following acute SARS-CoV-2 infection, which may affect daily functioning and well-being. Studies in larger samples with longer follow-ups are needed to clarify prevalence and symptom duration; as well as less investigated risk factors, including genetic predisposition, ethnicity, and comorbidities. Controlled studies may help separate infection-related direct effects from pandemic-related psychosocial stressors. Clarifying pathogenetic mechanisms is paramount to develop more targeted and effective treatments; whilst screening programs and psychoeducation may enhance early recognition.
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Affiliation(s)
| | - Valeria Parlatini
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Samuele Cortese
- School of Psychology, University of Southampton, Southampton, UK
- Horizon Centre, CAMHS West, William Macleod Way, Solent NHS Trust, Southampton, UK
- Division of Psychiatry and Applied Psychology, School of Medicine, University of Nottingham, Nottingham, UK
- Hassenfeld Children's Hospital at NYU Langone, New York University Child Study Center, New York City, New York, USA
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Bezold A, Hussain H, Nwanze J, Roberts JT, Hsieh KCJ. Radiologic-Pathologic Correlation of COVID-19-Associated Acute Disseminated Encephalomyelitis. Cureus 2023; 15:e42275. [PMID: 37605696 PMCID: PMC10440160 DOI: 10.7759/cureus.42275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/21/2023] [Indexed: 08/23/2023] Open
Abstract
A 42-year-old woman presented with drooling, slurred speech, inability to walk and talk, and a recent positive COVID-19 test. She had two prior hospital admissions within the past week for similar symptoms with inconclusive evaluation. MRI of the brain demonstrated multifocal white matter hyperintense lesions on fluid-attenuated inversion recovery (FLAIR)/diffusion with variable enhancement. These imaging findings have been described in recent literature and are associated with inflammatory demyelinating disease, such as acute disseminated encephalomyelitis. The patient subsequently underwent a brain biopsy with a final diagnosis of inflammatory demyelinating lesion. To our knowledge, this is the first radiologic-pathologic correlation of COVID-19-associated acute disseminated encephalomyelitis.
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Affiliation(s)
- Amy Bezold
- Vascular and Interventional Radiology, University of Texas Medical Branch, Galveston, USA
| | - Huda Hussain
- Radiology, University of Texas Medical Branch, Galveston, USA
| | - Julum Nwanze
- Pathology, University of Texas Medical Branch, Galveston, USA
| | - James T Roberts
- Diagnostic Radiology, University of Texas Medical Branch, Galveston, USA
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Delaney SL, Murray LA, Fallon BA. Neuropsychiatric Symptoms and Tick-Borne Diseases. Curr Top Behav Neurosci 2023; 61:279-302. [PMID: 36512289 DOI: 10.1007/7854_2022_406] [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] [Indexed: 06/17/2023]
Abstract
In North America, Lyme disease (LD) is primarily caused by the spirochetal bacterium Borrelia burgdorferi, transmitted to humans by Ixodes species tick bites, at an estimated rate of 476,000 patients diagnosed per year. Acute LD often manifests with flu-like symptoms and an expanding rash known as erythema migrans (EM) and less often with neurologic, neuropsychiatric, arthritic, or cardiac features. Most acute cases of Lyme disease are effectively treated with antibiotics, but 10-20% of individuals may experience recurrent or persistent symptoms. This chapter focuses on the neuropsychiatric aspects of Lyme disease, as these are less widely recognized by physicians and often overlooked. Broader education about the potential complexity, severity, and diverse manifestations of tick-borne diseases is needed.
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Affiliation(s)
- Shannon L Delaney
- Lyme and Tick-Borne Diseases Research Center at Columbia University Irving Medical Center, New York, NY, USA.
| | - Lilly A Murray
- Lyme and Tick-Borne Diseases Research Center at Columbia University Irving Medical Center, New York, NY, USA
| | - Brian A Fallon
- Lyme and Tick-Borne Diseases Research Center at Columbia University Irving Medical Center, New York, NY, USA
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Wada T, Mori H, Kida K, Shindo K. Japanese spotted fever with post-infectious encephalitis. IDCases 2022; 31:e01658. [PMID: 36561293 PMCID: PMC9763843 DOI: 10.1016/j.idcr.2022.e01658] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/30/2022] [Accepted: 12/03/2022] [Indexed: 12/12/2022] Open
Abstract
Japanese spotted fever (JSF) is a rickettsial disease caused by Rickettsia japonica. To the best of our knowledge, there have only been five reported cases of JSF involving the central nervous system. A 74-year-old man was admitted after 1 week of fever and maculopapular rash. JSF was definitively diagnosed by PCR; however, the patient showed mental disturbance and abnormal behavior. After intravenous immunoglobulin, his mental state and behavior improved. The findings of cerebrospinal fluid analysis, electroencephalography, and 99 mTcHM-PAO single photon computed emission tomography suggested post-infectious encephalitis. JSF causes post-infectious encephalitis and early treatment is recommended.
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Affiliation(s)
- Takafumi Wada
- Department of Neurology, Kurashiki Central Hospital, Japan, 1–1-1 Miwa, Kurashiki, Okayama, 710–8602 Japan
| | - Hitoshi Mori
- Department of Neurology, Kurashiki Central Hospital, Japan, 1–1-1 Miwa, Kurashiki, Okayama, 710–8602 Japan
| | - Kouji Kida
- Virology Section, Department of Health Science, Okayama Prefectural Institute for Environmental Science and Public Health, Japan, 739–1 Uchio, Okayama Minami-ku, Okayama, 701–0298 Japan
| | - Katsuro Shindo
- Department of Neurology, Kurashiki Central Hospital, Japan, 1–1-1 Miwa, Kurashiki, Okayama, 710–8602 Japan,Corresponding author.
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Post-COVID-19 Syndrome: Retinal Microcirculation as a Potential Marker for Chronic Fatigue. Int J Mol Sci 2022; 23:ijms232213683. [PMID: 36430175 PMCID: PMC9690863 DOI: 10.3390/ijms232213683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/04/2022] [Accepted: 11/05/2022] [Indexed: 11/10/2022] Open
Abstract
Post-COVID-19 syndrome (PCS) is characterized by persisting sequelae after infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). PCS can affect patients with all COVID-19 disease severities. As previous studies have revealed impaired blood flow as a provoking factor triggering PCS, it was the aim of the present study to investigate the potential association between self-reported chronic fatigue and retinal microcirculation in patients with PCS, potentially indicating an objective biomarker. A prospective study was performed, including 201 subjects: 173 patients with PCS and 28 controls. Retinal microcirculation was visualized by OCT angiography (OCT-A) and quantified using the Erlangen-Angio-Tool as macula and peripapillary vessel density (VD). Chronic fatigue (CF) was assessed according to the variables of Bell’s score, age and gender. VDs in the superficial vascular plexus (SVP), intermediate capillary plexus (ICP) and deep capillary plexus (DCP) were analyzed, considering the repetitions (12 times). Seropositivity for autoantibodies targeting G protein-coupled receptors (GPCR-AAbs) was determined by an established cardiomyocyte bioassay. Taking account of the repetitions, a mixed model was performed to detect possible differences in the least square means between the different groups included in the analysis. An age effect in relation to VD was observed between patients and controls (p < 0.0001). Gender analysis showed that women with PCS showed lower VD levels in the SVP compared to male patients (p = 0.0015). The PCS patients showed significantly lower VDs in the ICP as compared to the controls (p = 0.0001 (CI: 0.32; 1)). Moreover, considering PCS patients, the mixed model revealed a significant difference between those with chronic fatigue (CF) and those without CF with respect to VDs in the SVP (p = 0.0033 (CI: −4.5; −0.92)). The model included variables of age, gender and Bell’s score, representing a subjective marker for CF. Consequently, retinal microcirculation might serve as an objective biomarker in subjectively reported chronic fatigue in patients with PCS.
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Leta V, Boura I, van Wamelen DJ, Rodriguez-Violante M, Antonini A, Chaudhuri KR. Covid-19 and Parkinson's disease: Acute clinical implications, long-COVID and post-COVID-19 parkinsonism. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2022; 165:63-89. [PMID: 36208907 PMCID: PMC9357514 DOI: 10.1016/bs.irn.2022.04.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The Coronavirus Disease 2019 (Covid-19), caused by the Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2), has led to unprecedented challenges for the delivery of healthcare and has had a clear impact on people with chronic neurological conditions such as Parkinson's disease (PD). Acute worsening of motor and non-motor symptoms and long-term sequalae have been described during and after SARS-CoV-2 infections in people with Parkinson's (PwP), which are likely to be multifactorial in their origin. On the one hand, it is likely that worsening of symptoms has been related to the viral infection itself, whereas social restrictions imposed over the course of the Covid-19 pandemic might also have had such an effect. Twenty cases of post-Covid-19 para-infectious or post-infectious parkinsonism have been described so far where a variety of pathophysiological mechanisms seem to be involved; however, a Covid-19-induced wave of post-viral parkinsonism seems rather unlikely at the moment. Here, we describe the interaction between SARS-CoV-2 and PD in the short- and long-term and summarize the clinical features of post-Covid-19 cases of parkinsonism observed so far.
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Affiliation(s)
- Valentina Leta
- Department of Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom; Parkinson's Foundation Centre of Excellence, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Iro Boura
- Department of Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom; Parkinson's Foundation Centre of Excellence, King's College Hospital NHS Foundation Trust, London, United Kingdom; Medical School, University of Crete, Heraklion, Crete, Greece
| | - Daniel J van Wamelen
- Department of Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom; Parkinson's Foundation Centre of Excellence, King's College Hospital NHS Foundation Trust, London, United Kingdom; Department of Neurology, Centre of Expertise for Parkinson & Movement Disorders, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, the Netherlands
| | | | - Angelo Antonini
- Parkinson and Movement Disorders Unit, Department of Neuroscience, Centre for Rare Neurological Diseases (ERN-RND), University of Padova, Padova, Italy
| | - Kallol Ray Chaudhuri
- Department of Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom; Parkinson's Foundation Centre of Excellence, King's College Hospital NHS Foundation Trust, London, United Kingdom.
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Clark A, Zelmanovich R, Vo Q, Martinez M, Nwafor DC, Lucke-Wold B. Inflammation and the role of infection: Complications and treatment options following neurotrauma. J Clin Neurosci 2022; 100:23-32. [PMID: 35381478 DOI: 10.1016/j.jocn.2022.03.043] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 02/14/2022] [Accepted: 03/29/2022] [Indexed: 02/08/2023]
Abstract
Traumatic brain injury can have devastating consequences for patients and extended hospital stays and recovery course. Recent data indicate that the initial insult causes profound changes to the immune system and leads to a pro-inflammatory state. This alteration in homeostasis predisposes patients to an increased risk of infection and underlying autoimmune conditions. Increased emphasis has been placed on understanding this process both in the clinical and preclinical literature. This review highlights the intrinsic inflammatory conditions that can occur within the initial hospital stay, discusses long-term immune consequences, highlights emerging treatment options, and delves into important pathways currently being investigated with preclinical models.
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Affiliation(s)
- Alec Clark
- University of Central Florida, College of Medicine, Orlando, USA
| | | | - Quan Vo
- Department of Neurosurgery, University of Florida, Gainesville, USA
| | - Melanie Martinez
- Department of Neurosurgery, University of Florida, Gainesville, USA
| | - Divine C Nwafor
- Department of Neurosurgery, West Virginia University, Morgantown, USA
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Ceban F, Ling S, Lui LMW, Lee Y, Gill H, Teopiz KM, Rodrigues NB, Subramaniapillai M, Di Vincenzo JD, Cao B, Lin K, Mansur RB, Ho RC, Rosenblat JD, Miskowiak KW, Vinberg M, Maletic V, McIntyre RS. Fatigue and cognitive impairment in Post-COVID-19 Syndrome: A systematic review and meta-analysis. Brain Behav Immun 2022; 101:93-135. [PMID: 34973396 PMCID: PMC8715665 DOI: 10.1016/j.bbi.2021.12.020] [Citation(s) in RCA: 634] [Impact Index Per Article: 317.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 12/08/2021] [Accepted: 12/24/2021] [Indexed: 12/11/2022] Open
Abstract
IMPORTANCE COVID-19 is associated with clinically significant symptoms despite resolution of the acute infection (i.e., post-COVID-19 syndrome). Fatigue and cognitive impairment are amongst the most common and debilitating symptoms of post-COVID-19 syndrome. OBJECTIVE To quantify the proportion of individuals experiencing fatigue and cognitive impairment 12 or more weeks following COVID-19 diagnosis, and to characterize the inflammatory correlates and functional consequences of post-COVID-19 syndrome. DATA SOURCES Systematic searches were conducted without language restrictions from database inception to June 8, 2021 on PubMed/MEDLINE, The Cochrane Library, PsycInfo, Embase, Web of Science, Google/Google Scholar, and select reference lists. STUDY SELECTION Primary research articles which evaluated individuals at least 12 weeks after confirmed COVID-19 diagnosis and specifically reported on fatigue, cognitive impairment, inflammatory parameters, and/or functional outcomes were selected. DATA EXTRACTION & SYNTHESIS Two reviewers independently extracted published summary data and assessed methodological quality and risk of bias. A meta-analysis of proportions was conducted to pool Freeman-Tukey double arcsine transformed proportions using the random-effects restricted maximum-likelihood model. MAIN OUTCOMES & MEASURES The co-primary outcomes were the proportions of individuals reporting fatigue and cognitive impairment, respectively, 12 or more weeks following COVID-19 infection. The secondary outcomes were inflammatory correlates and functional consequences associated with post-COVID-19 syndrome. RESULTS The literature search yielded 10,979 studies, and 81 studies were selected for inclusion. The fatigue meta-analysis comprised 68 studies, the cognitive impairment meta-analysis comprised 43 studies, and 48 studies were included in the narrative synthesis. Meta-analysis revealed that the proportion of individuals experiencing fatigue 12 or more weeks following COVID-19 diagnosis was 0.32 (95% CI, 0.27, 0.37; p < 0.001; n = 25,268; I2 = 99.1%). The proportion of individuals exhibiting cognitive impairment was 0.22 (95% CI, 0.17, 0.28; p < 0.001; n = 13,232; I2 = 98.0). Moreover, narrative synthesis revealed elevations in proinflammatory markers and considerable functional impairment in a subset of individuals. CONCLUSIONS & RELEVANCE A significant proportion of individuals experience persistent fatigue and/or cognitive impairment following resolution of acute COVID-19. The frequency and debilitating nature of the foregoing symptoms provides the impetus to characterize the underlying neurobiological substrates and how to best treat these phenomena. STUDY REGISTRATION PROSPERO (CRD42021256965).
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Affiliation(s)
- Felicia Ceban
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada; Brain and Cognition Discovery Foundation, Toronto, ON, Canada
| | - Susan Ling
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada; Department of Pharmacology, University of Toronto, Toronto, ON, Canada
| | - Leanna M W Lui
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada
| | - Yena Lee
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada; Braxia Health, Mississauga, ON, Canada
| | - Hartej Gill
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada
| | - Kayla M Teopiz
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada
| | - Nelson B Rodrigues
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada
| | | | - Joshua D Di Vincenzo
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada; Department of Pharmacology, University of Toronto, Toronto, ON, Canada
| | - Bing Cao
- Key Laboratory of Cognition and Personality, Faculty of Psychology, Ministry of Education, Southwest University, Chongqing 400715, China
| | - Kangguang Lin
- Department of Affective Disorders, The Affiliated Brain Hospital of Guangzhou Medical University, (Guangzhou Huiai Hospital), Guangzhou Medical University, Guangzhou, China; Laboratory of Emotion and Cognition, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou Medical University, Guangzhou, China
| | - Rodrigo B Mansur
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada; Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Roger C Ho
- Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Institute for Health Innovation and Technology (iHealthtech), National University of Singapore, Singapore
| | - Joshua D Rosenblat
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada; Department of Pharmacology, University of Toronto, Toronto, ON, Canada; Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Kamilla W Miskowiak
- Department of Psychology, University of Copenhagen, Copenhagen, Denmark; Mental Health Services, Capital Region of Denmark, Copenhagen University Hospital, Copenhagen, Denmark
| | - Maj Vinberg
- Faculty of Health and Medical Sciences, University of Copenhagen, Denmark; Psychiatric Research Unit, Psychiatric Centre North Zealand, Hillerød, Denmark
| | - Vladimir Maletic
- Department of Psychiatry, University of South Carolina, Greenville, SC, USA
| | - Roger S McIntyre
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada; Brain and Cognition Discovery Foundation, Toronto, ON, Canada; Braxia Health, Mississauga, ON, Canada; Department of Pharmacology, University of Toronto, Toronto, ON, Canada; Department of Psychiatry, University of Toronto, Toronto, ON, Canada.
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Quintanilla-Sánchez C, Salcido-Montenegro A, González-González JG, Rodríguez-Gutiérrez R. Acute cerebrovascular events in severe and nonsevere COVID-19 patients: a systematic review and meta-analysis. Rev Neurosci 2022; 33:631-639. [PMID: 35142148 DOI: 10.1515/revneuro-2021-0130] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 01/17/2022] [Indexed: 01/06/2023]
Abstract
The degree to which COVID-19 severity influences the development of acute cerebrovascular events (ACVE) is unknown. Therefore, we aimed to describe the prevalence and risk of ACVE in patients with severe and nonsevere COVID-19. We systematically reviewed MEDLINE, EMBASE, Web of Science, and Scopus and identified observational and interventional studies of patients with COVID-19 allocated by respiratory severity that reported ACVE development. Case reports/series were excluded. The main outcome assessed was the pooled rate of ACVE in patients with severe and nonsevere COVID-19. To determine the risk of ACVE development by COVID-19 severity, a meta-analysis was performed. PROSPERO registration number: CRD42020178905. About 19 of 5758 identified studies were analyzed. From 11,886 COVID-19 patients analyzed, 421 had at least one ACVE [3.6%, 95% confidence interval (CI) 2.904-4.179]. Severe COVID-19 increased the risk of ACVE (odds ratio 1.96, 95% CI 1.22-3.15; P = 0.005; I 2 = 64%), specifically hemorrhagic stroke (4.12, 2.0-8.53; P = 0.001; I 2 = 0%). There was no difference in the risk of developing ischemic stroke between patients with severe and nonsevere COVID-19 (1.53, 0.87-2.7; P = 0.14; I 2 = 52%). From the patients who developed any ACVE, those with severe COVID-19 had a greater mortality risk than those with nonsevere COVID-19 (3.85, 1.08-13.70; P = 0.04; I 2 = 0%). The main limitations of our study were the heterogeneity found in the main meta-analysis studies and in their reported definition for COVID-19 severity. In conclusion, our findings provide evidence that COVID-19 respiratory severity could lead to ACVE development that increases mortality. The effect of COVID-19 management in ACVE needs to be evaluated.
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Affiliation(s)
- Carolina Quintanilla-Sánchez
- IMPRS Neuroscience, George August Göttingen University, Göttingen 37077, Germany.,Plataforma INVEST UANL-KER Unit Mayo Clinic, School of Medicine and University Hospital "Dr. José E González", Universidad Autónoma de Nuevo León, Monterrey 64460, México
| | - Alejandro Salcido-Montenegro
- Department of Internal Medicine and Plataforma INVEST UANL-KER Unit Mayo Clinic, School of Medicine and "Dr. José E. González" University Hospital, Universidad Autónoma de Nuevo León, Monterrey 64460, N.L. México
| | - José Gerardo González-González
- Department of Internal Medicine and Plataforma INVEST UANL-KER Unit Mayo Clinic, School of Medicine and "Dr. José E. González" University Hospital, Universidad Autónoma de Nuevo León, Monterrey 64460, N.L. México
| | - René Rodríguez-Gutiérrez
- Department of Internal Medicine and Plataforma INVEST UANL-KER Unit Mayo Clinic, School of Medicine and "Dr. José E. González" University Hospital, Universidad Autónoma de Nuevo León, Monterrey 64460, N.L. México
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13
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Siow I, Lee KS, Zhang JJY, Saffari SE, Ng A. Encephalitis as a neurological complication of COVID-19: A systematic review and meta-analysis of incidence, outcomes, and predictors. Eur J Neurol 2021; 28:3491-3502. [PMID: 33982853 PMCID: PMC8239820 DOI: 10.1111/ene.14913] [Citation(s) in RCA: 91] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 04/28/2021] [Accepted: 05/06/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND PURPOSE Although COVID-19 predominantly affects the respiratory system, recent studies have reported the occurrence of neurological disorders such as stroke in relation to COVID-19 infection. Encephalitis is an inflammatory condition of the brain that has been described as a severe neurological complication of COVID-19. Despite a growing number of reported cases, encephalitis related to COVID-19 infection has not been adequately characterised. To address this gap, this systematic review and meta-analysis aims to describe the incidence, clinical course, and outcomes of patients who suffer from encephalitis as a complication of COVID-19. METHODS All studies published between 1 November 2019 and 24 October 2020 that reported on patients who developed encephalitis as a complication of COVID-19 were included. Only cases with radiological and/or biochemical evidence of encephalitis were included. RESULTS In this study, 610 studies were screened and 23 studies reporting findings from 129,008 patients, including 138 with encephalitis, were included. The average time from diagnosis of COVID-19 to onset of encephalitis was 14.5 days (range = 10.8-18.2 days). The average incidence of encephalitis as a complication of COVID-19 was 0.215% (95% confidence interval [CI] = 0.056%-0.441%). The average mortality rate of encephalitis in COVID-19 patients was 13.4% (95% CI = 3.8%-25.9%). These patients also had deranged clinical parameters, including raised serum inflammatory markers and cerebrospinal fluid pleocytosis. CONCLUSIONS Although encephalitis is an uncommon complication of COVID-19, when present, it results in significant morbidity and mortality. Severely ill COVID-19 patients are at higher risk of suffering from encephalitis as a complication of the infection.
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Affiliation(s)
- Isabel Siow
- Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
| | - Keng Siang Lee
- Bristol Medical SchoolFaculty of Health SciencesUniversity of BristolBristolUK
| | - John J. Y. Zhang
- Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
| | | | - Adeline Ng
- Department of NeurologyNational Neuroscience InstituteSingaporeSingapore
- Neuroscience and Behavioural DisordersDuke‐NUSSingaporeSingapore
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14
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Relapsing Bickerstaff Brainstem Encephalitis After Autologous Stem Cell Transplant. J Clin Neuromuscul Dis 2021; 21:225-229. [PMID: 32453098 DOI: 10.1097/cnd.0000000000000282] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Bickerstaff brainstem encephalitis, widely considered to be associated with Miller Fisher and Guillain-Barré syndromes, is a rare disease state defined by the triad of ophthalmoplegia, ataxia, and decreased consciousness. The presence of central nervous system involvement, commonly in the form of impaired arousal, solidifies it as a unique entity. We present a case of this rare syndrome after autologous stem cell transplant.
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15
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Fragkou PC, Moschopoulos CD, Karofylakis E, Kelesidis T, Tsiodras S. Update in Viral Infections in the Intensive Care Unit. Front Med (Lausanne) 2021; 8:575580. [PMID: 33708775 PMCID: PMC7940368 DOI: 10.3389/fmed.2021.575580] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 02/02/2021] [Indexed: 12/15/2022] Open
Abstract
The advent of highly sensitive molecular diagnostic techniques has improved our ability to detect viral pathogens leading to severe and often fatal infections that require admission to the Intensive Care Unit (ICU). Viral infections in the ICU have pleomorphic clinical presentations including pneumonia, acute respiratory distress syndrome, respiratory failure, central or peripheral nervous system manifestations, and viral-induced shock. Besides de novo infections, certain viruses fall into latency and can be reactivated in both immunosuppressed and immunocompetent critically ill patients. Depending on the viral strain, transmission occurs either directly through contact with infectious materials and large droplets, or indirectly through suspended air particles (airborne transmission of droplet nuclei). Many viruses can efficiently spread within hospital environment leading to in-hospital outbreaks, sometimes with high rates of mortality and morbidity, thus infection control measures are of paramount importance. Despite the advances in detecting viral pathogens, limited progress has been made in antiviral treatments, contributing to unexpectedly high rates of unfavorable outcomes. Herein, we review the most updated data on epidemiology, common clinical features, diagnosis, pathogenesis, treatment and prevention of severe community- and hospital-acquired viral infections in the ICU settings.
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Affiliation(s)
- Paraskevi C. Fragkou
- 4th Department of Internal Medicine, Medical School, National and Kapodistrian University of Athens, “Attikon” University Hospital, Athens, Greece
| | - Charalampos D. Moschopoulos
- 4th Department of Internal Medicine, Medical School, National and Kapodistrian University of Athens, “Attikon” University Hospital, Athens, Greece
| | - Emmanouil Karofylakis
- 4th Department of Internal Medicine, Medical School, National and Kapodistrian University of Athens, “Attikon” University Hospital, Athens, Greece
| | - Theodoros Kelesidis
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Sotirios Tsiodras
- 4th Department of Internal Medicine, Medical School, National and Kapodistrian University of Athens, “Attikon” University Hospital, Athens, Greece
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16
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Castaldo N, Tascini C, Della Siega P, Peghin M, Pecori D. Clinical presentation and immunological features of Post-Malaria Neurologic Syndrome: a case report and review of literature. Malar J 2020; 19:419. [PMID: 33228672 PMCID: PMC7681770 DOI: 10.1186/s12936-020-03476-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 10/31/2020] [Indexed: 11/24/2022] Open
Abstract
Background Malaria still represents a major health threat, in terms of both morbidity and mortality. Complications of malaria present a diversified clinical spectrum, with neurological involvement leading to the most serious related-conditions. The authors recently encountered a case of a 60-year old Italian man presenting with confusion, language disturbances and Parkinson-like syndrome 3 weeks after complete remission from severe Plasmodium falciparum cerebral malaria. Chemical and microbiological analysis revealed aseptic meningitis, diffuse encephalitis and abnormal immune-activation. Re-infection and recrudescence of infection were excluded. Further analysis excluded paraneoplastic and autoimmune causes of encephalitis. A diagnosis of Post-Malaria Neurological Syndrome (PMNS) was finally formulated and successfully treated with high dose of steroids. Methods A systematic research of current literature related to PMNS was performed. Results 151 cases of PMNS were included, the majority of which occurred after severe P. falciparum infections. Four main clinical pattern were identified: 37% of the cases presented as “classical” PMNS, 36% presented as delayed cerebellar ataxia (DCA), 18% resembled acute inflammatory demyelinating polyneuropathy (AIDP), and 8% presented as acute disseminated encephalomyelitis (ADEM)-like form. Differentiation between different forms was not always simple, as clinical and radiological findings frequently overlap. Overall, in almost all of the tested cases, cerebrospinal fluid was found pathological; EEG revealed nonspecific encephalopathy in 30% of classical PMNS and 67% ADEM; imaging tests were found abnormal in 92% of ADEM-like forms. Pathogenesis remains unclear. An autoimmune mechanism is the most corroborated pathogenic hypothesis. Overall, the majority of PMNS cases revert without specific treatment. In most severe forms, high dose steroids, intravenous immunoglobulins, and plasmapheresis have been shown to improve symptoms. Conclusions PMNS is a disabling complication of malaria. The overall incidence is not known, due to frequent misdiagnosis and under-reporting. Pathogenesis is not also fully understood, but rapid response to immune-modulating treatment along with similarities to auto-immune neurological disease, strongly support a dysregulated immunological genesis of this condition. The lack of randomized controlled studies regarding therapeutic approaches is a major unmet need in this setting. A systematic collection of all the PMNS cases would be desirable, in order to increase awareness of this rare condition and to prospectively investigate the most appropriate management.
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Affiliation(s)
- Nadia Castaldo
- Infectious Diseases Division, Department of Medicine, University of Udine and Azienda Sanitaria Universitaria Integrata Di Udine, 33100, Udine, Italy
| | - Carlo Tascini
- Infectious Diseases Division, Department of Medicine, University of Udine and Azienda Sanitaria Universitaria Integrata Di Udine, 33100, Udine, Italy
| | - Paola Della Siega
- Infectious Diseases Division, Department of Medicine, University of Udine and Azienda Sanitaria Universitaria Integrata Di Udine, 33100, Udine, Italy
| | - Maddalena Peghin
- Infectious Diseases Division, Department of Medicine, University of Udine and Azienda Sanitaria Universitaria Integrata Di Udine, 33100, Udine, Italy
| | - Davide Pecori
- Infectious Diseases Division, Department of Medicine, University of Udine and Azienda Sanitaria Universitaria Integrata Di Udine, 33100, Udine, Italy.
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17
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Hutchison L, Plichta AM, Lerea Y, Madora M, Ushay HM. Neuropsychiatric Symptoms in an Adolescent Boy With Multisystem Inflammatory Syndrome in Children. PSYCHOSOMATICS 2020; 61:739-744. [PMID: 32713710 PMCID: PMC7324340 DOI: 10.1016/j.psym.2020.06.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 06/18/2020] [Accepted: 06/18/2020] [Indexed: 12/13/2022]
Affiliation(s)
- Lisa Hutchison
- Department of Psychiatry & Behavioral Sciences, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, NY.
| | - Anna M Plichta
- Department of Pediatrics, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, NY
| | - Yehuda Lerea
- Department of Psychiatry & Behavioral Sciences, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, NY
| | - Marlee Madora
- Department of Psychiatry & Behavioral Sciences, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, NY
| | - H Michael Ushay
- Department of Pediatrics, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, NY
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18
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Pouga L. Encephalitic syndrome and anosmia in COVID-19: Do these clinical presentations really reflect SARS-CoV-2 neurotropism? A theory based on the review of 25 COVID-19 cases. J Med Virol 2020; 93:550-558. [PMID: 32672843 PMCID: PMC7405279 DOI: 10.1002/jmv.26309] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/10/2020] [Accepted: 07/13/2020] [Indexed: 12/13/2022]
Abstract
Since the discovery of coronavirus disease 2019 (COVID‐19), a disease caused by the new coronavirus severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2), the pathology showed different faces. There is an increasing number of cases described as (meningo)encephalitis although evidence often lacks. Anosmia, another atypical form of COVID‐19, has been considered as testimony of the potential of neuroinvasiveness of SARS‐CoV‐2, though this hypothesis remains highly speculative. We did a review of the cases reported as brain injury caused by SARS‐CoV‐2. Over 98 papers found, 21 were analyzed. Only four publications provided evidence of the presence of SARS‐CoV‐2 within the central nervous system (CNS). When facing acute neurological abnormalities during an infectious episode it is often difficult to disentangle neurological symptoms induced by the brain infection and those due to the impact of host immune response on the CNS. Cytokines release can disturb neural cells functioning and can have in the most severe cases vascular and cytotoxic effects. An inappropriate immune response can lead to the production of auto‐antibodies directed toward CNS components. In the case of proven SARS‐CoV‐2 brain invasion, the main hypothesis found in the literature focus on a neural pathway, especially the direct route via the nasal cavity, although the virus is likely to reach the CNS using other routes. Our ability to come up with hypotheses about the mechanisms by which the virus might interact with the CNS may help to keep in mind that all neurological symptoms observed during COVID‐19 do not always rely on CNS viral invasion. Review of 25 COVID‐19 cases with neurological symptoms. Evidence of the SARS‐CoV‐2 presence in the brain is often lacking. Brain magnetic resonance imagery is the most accurate exam to explore brain damages. SARS‐CoV‐2 can cause anosmia and neurological symptoms without invading the brain. The routes used by SARS‐CoV‐2 to invade the brain may lead to different symptoms.
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Affiliation(s)
- Lydia Pouga
- Necker-Enfants malades Hospital, Infectious Diseases and Tropical Medicine Unit, APHP, Paris, France
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19
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Ding Y, Yu L, Zhou S, Zhang L. Clinical Characteristic Analysis of Seven Children With Bickerstaff Brainstem Encephalitis in China. Front Neurol 2020; 11:557. [PMID: 32655484 PMCID: PMC7325930 DOI: 10.3389/fneur.2020.00557] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 05/15/2020] [Indexed: 12/24/2022] Open
Abstract
Objective: To summarize the clinical, electrophysiological, neuroimaging, and immunological characteristics of seven cases of Bickerstaff brainstem encephalitis (BBE) in China and to determine whether certain clinical features suggestive of BBE can facilitate diagnosis and treatment. Patients and Methods: The clinical data of seven BBE patients treated at the Children's Hospital of Fudan University between 2016 and 2019 were retrospectively analyzed. The clinical and laboratory characteristics of the BBE patients were studied. Results: The seven patients in this study included four females and three males, and the median age at diagnosis was 5.3 years (interquartile range: 3.0–7.1 years). All seven patients had an acute onset with a preinfection history. Seven cases of acute extraocular paralysis, ataxia, and an impaired level of consciousness, two cases of tendon hyperreflexia, one case of positive pathology, and five cases of cranial nerve involvement (the facial nerve and oculomotor nerve) were noted. Cerebrospinal fluid (CSF) examination of five patients showed albuminocytologic dissociation. Electromyography (EMG) was used to examine seven patients; the results were normal in four patients, showed axonal involvement in two patients, and showed demyelination in one patient. The head magnetic resonance imaging (MRI) results of all seven patients were normal. Electroencephalogram (EEG) background activity in the five monitored patients was slowed down. Seven patients underwent serum antibody testing, three of whom were positive for anti-GQ1b antibody, while one was positive for anti-GM1 antibody. Three patients received glucocorticoid combined with intravenous immunoglobulin (IVIG) therapy, and four received only IVIG therapy. One patient required a nasal catheter for oxygen during the disease course, and left upper limb muscle dysfunction (grade III muscle strength of the left upper limb) was observed during the 6-month follow-up. The other six patients had a good prognosis and no dysfunction. Conclusion: Our study identified clinical, imaging, and treatment characteristics that may have prognostic value for pediatric BBE. The positive rate of head MRI was low, the positive rate of serum anti-GQ1b ganglioside antibody was low, and the therapeutic effect of IVIG therapy was good.
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Affiliation(s)
- Yifeng Ding
- Department of Neurology, Children's Hospital of Fudan University, Shanghai, China
| | - Lifei Yu
- Department of Neurology, Children's Hospital of Fudan University, Shanghai, China
| | - Shuizhen Zhou
- Department of Neurology, Children's Hospital of Fudan University, Shanghai, China
| | - Linmei Zhang
- Department of Neurology, Children's Hospital of Fudan University, Shanghai, China
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20
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Acute Demyelinating Disorders in the Neurocritical Care Unit. Neurocrit Care 2019. [DOI: 10.1017/9781107587908.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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21
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Venkatesan A, Michael BD, Probasco JC, Geocadin RG, Solomon T. Acute encephalitis in immunocompetent adults. Lancet 2019; 393:702-716. [PMID: 30782344 DOI: 10.1016/s0140-6736(18)32526-1] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Revised: 10/01/2018] [Accepted: 10/04/2018] [Indexed: 01/26/2023]
Abstract
Encephalitis is a condition of inflammation of the brain parenchyma, occurs as a result of infectious or autoimmune causes, and can lead to encephalopathy, seizures, focal neurological deficits, neurological disability, and death. Viral causes account for the largest proportion, but in the last decade there has been growing recognition of anti-neuronal antibody syndromes. This Seminar focuses on the diagnosis and management of acute encephalitis in adults. Although viral and autoimmune causes are highlighted because of their prominent roles in encephalitis, other infectious pathogens are also considered. The role of cerebrospinal fluid studies, MRI, and novel diagnostic modalities (eg, next-generation sequencing) are discussed. Management approaches, including treatment of acute neurological complications and the use of immune suppressive and modulatory drugs for cases of suspected or confirmed autoimmune cause, are covered. Additionally, we discuss the remaining challenges in the diagnosis, management, and prognosis of encephalitis.
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Affiliation(s)
- Arun Venkatesan
- Johns Hopkins Encephalitis Center, Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Benedict D Michael
- Center for Immune and Inflammatory Disease, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA; National Institute for Health Research Health Protection Research Unit in Emerging and Zoonotic Infections, Institute of Infection and Global Health, University of Liverpool, Liverpool, UK; Department of Neurology, the Walton Center NHS Foundation Trust, Liverpool, UK
| | - John C Probasco
- Johns Hopkins Encephalitis Center, Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Romergryko G Geocadin
- Johns Hopkins Encephalitis Center, Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Anaesthesia/Critical Care, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Tom Solomon
- National Institute for Health Research Health Protection Research Unit in Emerging and Zoonotic Infections, Institute of Infection and Global Health, University of Liverpool, Liverpool, UK; Department of Neurology, the Walton Center NHS Foundation Trust, Liverpool, UK
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22
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Magnetic resonance imaging in immune-mediated myelopathies. J Neurol 2019; 267:1233-1244. [PMID: 30694379 DOI: 10.1007/s00415-019-09206-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 01/15/2019] [Accepted: 01/18/2019] [Indexed: 10/27/2022]
Abstract
Immune-mediated myelopathies are a heterogeneous group of inflammatory spinal cord disorders including autoimmune disorders with known antibodies, e.g. aquaporin-4 IgG channelopathy or anti-myelin oligodendrocyte glycoprotein-associated myelitis, myelopathies in the context of multiple sclerosis and systemic autoimmune disorders with myelopathy, as well as post-infectious and paraneoplastic myelopathies. Although magnetic resonance imaging of the spinal cord is still challenging due to the small dimension of the cord cross-section and frequent movement and susceptibility artifacts, recent methodological advances have led to improved diagnostic evaluation and characterization of immune-mediated myelopathies. Topography, length and width of the lesion, gadolinium enhancement pattern, and changes in morphology over time help in narrowing the broad differential diagnosis. In this review, we give an overview of recent advances in magnetic resonance imaging of immune-mediated myelopathies and its role in the differential diagnosis and monitoring of this heterogeneous group of disorders.
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23
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Michev A, Musso P, Foiadelli T, Trabatti C, Lozza A, Franciotta D, Simoncelli AM, Savasta S. Bickerstaff Brainstem Encephalitis and overlapping Guillain-Barré syndrome in children: Report of two cases and review of the literature. Eur J Paediatr Neurol 2019; 23:43-52. [PMID: 30502045 DOI: 10.1016/j.ejpn.2018.11.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 11/09/2018] [Accepted: 11/13/2018] [Indexed: 12/11/2022]
Abstract
Bickerstaff Brainstem Encephalitis (BBE) is a rare autoimmune encephalitis, characterized by acute ophthalmoplegia, ataxia and altered state of consciousness. Together with Guillan-Barrè Syndrome (GBS) and Miller-Fisher Syndrome, it forms a spectrum of post-infectious demyelinating diseases. Overlapping forms between BBE and GBS (BBE/GBS) are described in patients with lower limbs weakness and typical signs of BBE, suggesting a combined involvement of Central and Peripheral Nervous System (PNS), but only few reported cases are focused on pediatric population. We reviewed all cases of pediatric BBE in the literature, to determine if any patient showed features suggestive for BBE/GBS. Data analysis focused on the diagnostic tests performed (e.g. anti-GQ1b antibodies), neuroimaging and nerve conduction studies (NCS). Further attention was given to the therapeutic management and to patients' outcome. We additionally present two previously unreported pediatric cases. Our review retrieved 19 cases of BBE/GBS, only 2 of which were originally and correctly diagnosed by the authors. The prevalence was higher in male subjects (ratio 3:1) and median age at diagnosis was 8 years. Anti-GQ1b were positive in 46% of the patients, while NCS were altered in 64%. Only 25% of the patients that underwent brain MRI showed abnormal findings. The incidence of BBE/GBS has been underrated in the past, mostly due to an underestimation of the PNS involvement. We therefore suggest to investigate all patients with a clinical picture suggestive of BBE/GBS through electroencephalogram, NCS, brain and spine MRI in order to promptly achieve the correct diagnosis.
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Affiliation(s)
- A Michev
- Pediatric Clinic, Foundation IRCCS Policlinico "San Matteo", University of Pavia, Pavia, Italy
| | - P Musso
- Pediatric Clinic, Foundation IRCCS Policlinico "San Matteo", University of Pavia, Pavia, Italy
| | - T Foiadelli
- Pediatric Clinic, Foundation IRCCS Policlinico "San Matteo", University of Pavia, Pavia, Italy; Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Italy.
| | - C Trabatti
- Pediatric Clinic, Foundation IRCCS Policlinico "San Matteo", University of Pavia, Pavia, Italy
| | - A Lozza
- Clinical Neurophysiology Service, IRCCS Mondino Foundation, Pavia, Italy
| | - D Franciotta
- Laboratory of Neuroimmunology, IRCCS Mondino Foundation, Pavia, Italy
| | - A M Simoncelli
- Department of Diagnostic Radiology and Interventional Radiology and Neuroradiology, Foundation IRCCS Policlinico "San Matteo", University of Pavia, Pavia, Italy
| | - S Savasta
- Pediatric Clinic, Foundation IRCCS Policlinico "San Matteo", University of Pavia, Pavia, Italy
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24
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Tamzali Y, Demeret S, Haddad E, Guillot H, Caumes E, Jauréguiberry S. Post-malaria neurological syndrome: four cases, review of the literature and clarification of the nosological framework. Malar J 2018; 17:387. [PMID: 30367650 PMCID: PMC6204022 DOI: 10.1186/s12936-018-2542-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 10/22/2018] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Post-malaria neurological syndrome (PMNS) is a debated entity, defined by neurological complications following a post-malaria symptom-free period and a negative blood smear. Four cases of PMNS are hereby reported and a review the literature performed to clarify the nosological framework of this syndrome. METHODS A French teaching hospital infectious diseases database was investigated for all PMNS cases occurring between 1999 and 2016 and the PubMed database for cases reported by other institutions after 1997. A case was defined by the de novo appearance of neurological signs following a post-malaria symptom-free period, a negative blood smear, and no bacterial or viral differential diagnoses. RESULTS Four patients from the database and 48 from PubMed, including 4 following Plasmodium vivax infection were found matching the definition. In the institution, the estimated PMNS incidence rate was 1.7 per 1000 malaria cases overall. Of the 52 patients (mean age 33 years), 65% were men. Malaria was severe in 85% of cases, showed neurological involvement in 53%, and treated with quinine in 60%, mefloquine in 46%, artemisinin derivatives in 41%, antifolic drugs in 30%, doxycycline in 8% and other types in 8%. The mean symptom-free period was 15 days. PMNS signs were confusion (72%), fever (46%), seizures (35%), cerebellar impairment (28%), psychosis (26%), and motor disorders (13%). Cerebrospinal fluid analyses showed high protein levels in 77% (mean 1.88 g/L) and lymphocytic meningitis in 59.5% (mean 48 WBC/mm3) of cases. Electroencephalograms were pathological in 93% (14/15) of cases, and brain MRIs showed abnormalities in 43% (9/21) of cases with white matter involvement in 100%. Fourteen patients were treated with steroids. The 18 patients with follow-up data showed no sequelae. The mean time to recovery was 17.4 days. CONCLUSION PMNS is a rare entity englobing neurological signs after severe or non-severe malaria. It appears after a symptom-free period. PMNS occurred following treatment of malaria with a wide range of anti-malarials. The disease is self-limiting and associated with good outcome. MRI patterns underline a possible link with acute disseminated encephalomyelitis (ADEM) or auto-immune encephalitis. Plasmodium falciparum and Plasmodium vivax should be added to the list of pathogens causing ADEM.
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Affiliation(s)
- Yanis Tamzali
- Infectious and Tropical Diseases Unit, APHP, Pitié Salpêtrière Hospital, 75013, Paris, France
| | - Sophie Demeret
- Neurology Department, APHP, Pitié Salpêtrière Hospital, 75013, Paris, France
| | - Elie Haddad
- Infectious and Tropical Diseases Unit, APHP, Pitié Salpêtrière Hospital, 75013, Paris, France
| | - Hélène Guillot
- Infectious and Tropical Diseases Unit, APHP, Pitié Salpêtrière Hospital, 75013, Paris, France
| | - Eric Caumes
- Infectious and Tropical Diseases Unit, APHP, Pitié Salpêtrière Hospital, 75013, Paris, France
- Sorbonne University, INSERM, Pierre Louis Institute of Epidemiology and Public Health (UMRS 1136), Paris, France
| | - Stéphane Jauréguiberry
- Infectious and Tropical Diseases Unit, APHP, Pitié Salpêtrière Hospital, 75013, Paris, France.
- Sorbonne University, INSERM, Pierre Louis Institute of Epidemiology and Public Health (UMRS 1136), Paris, France.
- National Reference Centre for Malaria, Paris, France.
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25
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Al-Sulaiman AM, Vallely PJ, Klapper PE, Al Baradie R, Almatrrouk SA, Alharbi KK. Expression of variable viruses as herpes simplex glycoprotein D and varicella zoster gE glycoprotein using a novel plasmid based expression system in insect cell. Saudi J Biol Sci 2018; 24:1497-1504. [PMID: 30294218 PMCID: PMC6169504 DOI: 10.1016/j.sjbs.2016.05.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Revised: 05/01/2016] [Accepted: 05/03/2016] [Indexed: 12/23/2022] Open
Abstract
Several prokaryotic and eukaryotic expression systems have been used for in vitro production of viruses’ proteins. However eukaryotic expression system was always the first choice for production of proteins that undergo post-translational modification such as glycosylation. Recombinant baculoviruses have been widely used as safe vectors to express heterologous genes in the culture of insect cells, but the manipulation involved in creating, titrating, and amplifying viral stocks make it time consuming and laborious. Therefore, to facilitate rapid expression in insect cell, a plasmid based expression system was used to express herpes simplex type 1 glycoprotein D (HSV-1 gD) and varicella zoster glycoprotein E (VZV gE). Recombinant plasmids were generated, transfected into insect cells (SF9), and both glycoproteins were expressed 48 h post-infection. A protein with approximately molecular weight of 64-kDa and 98-kDa for HSV-1 gD and VZV gE respectively was expressed and confirmed by SDS. Proteins were detected in insect cells cytoplasm and outer membrane by immunofluorescence. The antigenicity and immunoreactivity of each protein were confirmed by immunoblot and ELISA. Results suggest that this system can be an alternative to the traditional baculovirus expression for small scale expression system in insect cells.
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Affiliation(s)
- A M Al-Sulaiman
- Department of Medical and Molecular Virology, PSMMC, Riyadh, Saudi Arabia
| | - P J Vallely
- Virology, Genomic Epidemiology Research Group, School of Translational Medicine, University of Manchester, Manchester, United Kingdom
| | - P E Klapper
- Clinical Virology, Manchester Medical Microbiology Partnership, Manchester Royal Infirmary, Manchester, United Kingdom
| | - Raid Al Baradie
- Medical Laboratory Department, CAMS, Majmaah University, Saudi Arabia
| | | | - Khalid K Alharbi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
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Moonga SS, Liang K, Cunha BA. Acute Encephalitis in an Adult with Diffuse Large B-Cell Lymphoma with Secondary Involvement of the Central Nervous System: Infectious or Non-Infectious Etiology? J Clin Med 2017; 6:jcm6120117. [PMID: 29215577 PMCID: PMC5742806 DOI: 10.3390/jcm6120117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Revised: 11/11/2017] [Accepted: 11/18/2017] [Indexed: 11/27/2022] Open
Abstract
Both infectious and non-infectious etiologies of acute encephalitis have been described, as well as their specific presentations, diagnostic tests, and therapies. Classic findings of acute encephalitis include altered mental status, fever, and new lesions on neuroimaging or electroencephalogram (EEG). We report an interesting case of a 61-year-old male with a history of diffuse large B-cell lymphoma with secondary involvement of the central nervous system (SCNS-DLBCL). He presented with acute encephalitis: altered mental status, fever, leukocytosis, neuropsychiatric symptoms, multiple unchanged brain lesions on computed tomography scan of the head, and EEG showed mild to moderate diffuse slowing with low-moderate polymorphic delta and theta activity. With such a wide range of symptoms, the differential diagnosis included paraneoplastic and autoimmune encephalitis. Infectious and autoimmune/paraneoplastic encephalitis in patients with SCNS-DLBCL are not well documented in the literature, hence diagnosis and therapy becomes challenging. This case report describes the patient’s unique presentation of acute encephalitis.
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Affiliation(s)
- Surinder S Moonga
- Stony Brook School of Medicine, State University of New York, Stony Brook, NY 11790, USA.
| | - Kenneth Liang
- Independent Scholar, 54 Catherine Street, New York, NY 10038, USA.
| | - Burke A Cunha
- Infectious Disease Division, NYU-Winthrop University Hospital, Mineola, NY 11501, USA.
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Popiel M, Perlejewski K, Bednarska A, Dzieciątkowski T, Paciorek M, Lipowski D, Jabłonowska M, Czeszko-Paprocka H, Bukowska-Ośko I, Caraballo Cortes K, Pawełczyk A, Fic M, Horban A, Radkowski M, Laskus T. Viral etiologies in adult patients with encephalitis in Poland: A prospective single center study. PLoS One 2017; 12:e0178481. [PMID: 28570620 PMCID: PMC5453691 DOI: 10.1371/journal.pone.0178481] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 05/12/2017] [Indexed: 12/30/2022] Open
Abstract
Encephalitis is a severe neurological syndrome associated with high morbidity and mortality as well as long-term neurological sequelae. Despite being an important public health problem, very few extensive population-based studies were conducted so far in the world and none in Central Europe. Altogether 114 consecutive patients meeting the initial criteria for encephalitis were enrolled at the Warsaw Hospital for Infectious Diseases between June 2012 and July 2015. Eighteen patients were secondarily excluded from the analysis due to incomplete data or noinfectious cause. Potential pathogen sequences were searched for by molecular methods in the cerebrospinal fluid (CSF) and specific antibodies were detected in CSF and sera. An infectious agent was identified in 41 patients (42.7%). The most frequently diagnosed infections were Human herpesvirus 1 (HHV-1) (22 cases, 24%) followed by Enterovirus (6 cases, 6.3%), Varicella zoster virus (VZV) (5 cases, 5.2%), Tick-borne encephalitis virus (TBEV) (6 cases, 6.3%) and Cytomegalovirus (CMV) (2 cases, 2.1%). There were no cases of human adenovirus, Human herpesvirus 6 (HHV-6) or West Nile virus (WNV) infection identified. In 55 cases (57.3%) the cause of encephalitis remained unknown. Compared to patients in whom the diagnosis was determined the latter group contained more women, was less likely to manifest fever and had lower CSF pleocytosis (p < 0.05) In summary, we identified HHV-1 followed by Enterovirus, VZV and TBEV as the most common causes of encephalitis among adult patients in Poland. In a large proportion of patients the cause of encephalitis remained unknown.
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Affiliation(s)
- Marta Popiel
- Department of Immunopathology of Infectious and Parasitic Diseases, Warsaw Medical University, Warsaw, Poland
| | - Karol Perlejewski
- Department of Immunopathology of Infectious and Parasitic Diseases, Warsaw Medical University, Warsaw, Poland
| | - Agnieszka Bednarska
- Department of Infectious Diseases, Warsaw Medical University, Warsaw, Poland
- Hospital for Infectious Diseases, Warsaw, Poland
| | | | | | - Dariusz Lipowski
- Department of Infectious Diseases, Warsaw Medical University, Warsaw, Poland
| | | | | | - Iwona Bukowska-Ośko
- Department of Immunopathology of Infectious and Parasitic Diseases, Warsaw Medical University, Warsaw, Poland
| | - Kamila Caraballo Cortes
- Department of Immunopathology of Infectious and Parasitic Diseases, Warsaw Medical University, Warsaw, Poland
| | - Agnieszka Pawełczyk
- Department of Immunopathology of Infectious and Parasitic Diseases, Warsaw Medical University, Warsaw, Poland
| | - Maria Fic
- Department of Immunopathology of Infectious and Parasitic Diseases, Warsaw Medical University, Warsaw, Poland
| | - Andrzej Horban
- Department of Infectious Diseases, Warsaw Medical University, Warsaw, Poland
| | - Marek Radkowski
- Department of Immunopathology of Infectious and Parasitic Diseases, Warsaw Medical University, Warsaw, Poland
| | - Tomasz Laskus
- Department of Immunopathology of Infectious and Parasitic Diseases, Warsaw Medical University, Warsaw, Poland
- * E-mail:
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McKnight CD, Kelly AM, Petrou M, Nidecker AE, Lorincz MT, Altaee DK, Gebarski SS, Foerster B. A Simplified Approach to Encephalitis and Its Mimics: Key Clinical Decision Points in the Setting of Specific Imaging Abnormalities. Acad Radiol 2017; 24:667-676. [PMID: 28258904 DOI: 10.1016/j.acra.2016.04.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 04/13/2016] [Accepted: 04/15/2016] [Indexed: 11/24/2022]
Abstract
RATIONALE AND OBJECTIVES Infectious encephalitis is a relatively common cause of morbidity and mortality. Treatment of infectious encephalitis with antiviral medication can be highly effective when administered promptly. Clinical mimics of encephalitis arise from a broad range of pathologic processes, including toxic, metabolic, neoplastic, autoimmune, and cardiovascular etiologies. These mimics need to be rapidly differentiated from infectious encephalitis to appropriately manage the correct etiology; however, the many overlapping signs of these various entities present a challenge to accurate diagnosis. A systematic approach that considers both the clinical manifestations and the imaging findings of infectious encephalitis and its mimics can contribute to more accurate and timely diagnosis. MATERIALS AND METHODS Following an institutional review board approval, a health insurance portability and accountability act (HIPAA)-compliant search of our institutional imaging database (teaching files) was conducted to generate a list of adult and pediatric patients who presented between January 1, 1995 and October 10, 2013 for imaging to evaluate possible cases of encephalitis. Pertinent medical records, including clinical notes as well as surgical and pathology reports, were reviewed and correlated with imaging findings. Clinical and imaging findings were combined to generate useful flowcharts designed to assist in distinguishing infectious encephalitis from its mimics. Key imaging features were reviewed and were placed in the context of the provided flowcharts. RESULTS Four flowcharts were presented based on the primary anatomic site of imaging abnormality: group 1: temporal lobe; group 2: cerebral cortex; group 3: deep gray matter; and group 4: white matter. An approach that combines features on clinical presentation was then detailed. Imaging examples were used to demonstrate similarities and key differences. CONCLUSIONS Early recognition of infectious encephalitis is critical, but can be quite complex due to diverse pathologies and overlapping features. Synthesis of both the clinical and imaging features of infectious encephalitis and its mimics is critical to a timely and accurate diagnosis. The use of the flowcharts presented in this article can further enable both clinicians and radiologists to more confidently differentiate encephalitis from its mimics and improve patient care.
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Oldham M. Autoimmune Encephalopathy for Psychiatrists: When to Suspect Autoimmunity and What to Do Next. PSYCHOSOMATICS 2017; 58:228-244. [DOI: 10.1016/j.psym.2017.02.014] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 02/22/2017] [Accepted: 02/22/2017] [Indexed: 12/18/2022]
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Fillatre P, Crabol Y, Morand P, Piroth L, Honnorat J, Stahl JP, Lecuit M. Infectious encephalitis: Management without etiological diagnosis 48hours after onset. Med Mal Infect 2017; 47:236-251. [PMID: 28314470 PMCID: PMC7131623 DOI: 10.1016/j.medmal.2017.02.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 02/22/2017] [Indexed: 12/18/2022]
Abstract
Introduction The etiological diagnosis of infectious encephalitis is often not established 48 hours after onset. We aimed to review existing literature data before providing management guidelines. Method We performed a literature search on PubMed using filters such as “since 01/01/2000”, “human”, “adults”, “English or French”, and “clinical trial/review/guidelines”. We also used the Mesh search terms “encephalitis/therapy” and “encephalitis/diagnosis”. Results With Mesh search terms “encephalitis/therapy” and “encephalitis/diagnosis”, we retrieved 223 and 258 articles, respectively. With search terms “encephalitis and corticosteroid”, we identified 38 articles, and with “encephalitis and doxycycline” without the above-mentioned filters we identified 85 articles. A total of 210 articles were included in the analysis. Discussion Etiological investigations must focus on recent travels, animal exposures, age, immunodeficiency, neurological damage characteristics, and potential extra-neurological signs. The interest of a diagnosis of encephalitis for which there is no specific treatment is also to discontinue any empirical treatments initially prescribed. Physicians must consider and search for autoimmune encephalitis.
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Affiliation(s)
- P Fillatre
- Service de maladies infectieuses et réanimation médicale, CHU Pontchaillou, 35000 Rennes, France
| | - Y Crabol
- Médecine interne, CHBUA site de Vannes, 56017 Vannes, France
| | - P Morand
- Virologie, CHU Grenoble Alpes, 38043 Grenoble cedex 9, France
| | - L Piroth
- Infectiologie, CHU de Dijon, 21000 Dijon, France
| | - J Honnorat
- Inserm U1028, CNRS UMR5292, équipe neuro-oncologie et neuro-inflammation (Oncoflam), centre de recherche en neurosciences (CRNL), université Lyon 1, 69500 Bron, France
| | - J P Stahl
- Service d'infectiologie, CHU de Grenoble, 38043 Grenoble cedex 9, France.
| | - M Lecuit
- Institut Pasteur, Biology of Infection Unit, CNR CCOMS Listeria, Inserm U1117, Paris, France; Paris Descartes University, Sorbonne Paris Cité, Department of Infectious Diseases and Tropical Medicine, Necker-Enfants-Malades University Hospital, Institut Imagine, Assistance Publique-Hôpitaux de Paris, Paris, France
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Kido H, Kano O, Hamai A, Masuda H, Fuchinoue Y, Nemoto M, Arai C, Takeda T, Yamabe F, Tai T, Kasahara M, Suzuki K, Shiraga N, Sadamoto S, Wakayama M, Takahashi Y, Iwasaki Y, Shibuya K, Urita Y. Kikuchi-Fujimoto disease (histiocytic necrotizing lymphadenitis) with atypical encephalitis and painful testitis: a case report. BMC Neurol 2017; 17:22. [PMID: 28143446 PMCID: PMC5286801 DOI: 10.1186/s12883-017-0807-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Accepted: 01/23/2017] [Indexed: 05/29/2023] Open
Abstract
Background Kikuchi-Fujimoto disease is a self-limited clinicopathologic entity that is increasingly recognized worldwide. Kikuchi-Fujimoto disease is characterized by cervical lymphadenopathy occurring in young adults. Neurologic involvement is rare, and testitis directly caused by Kikuchi-Fujimoto disease has not yet been reported. Case presentation A 19-year-old man was brought to our clinic with complaints of fever, headache, fatigue, and left lower quadrant pain that had persisted for 3 weeks. On physical examination, painful cervical lymphadenopathies were observed. Meningitis was suspected based on a cerebrospinal fluid examination, and left-sided orchitis was diagnosed based on findings from magnetic resonance imaging and ultrasonography. However, neither antibiotics nor antiviral drugs were effective in treating the patient’s symptoms. On the 20th day of hospitalization, the patient experienced a loss of consciousness, and brain T2-weighted magnetic resonance imaging showed asymmetrical, high-signal intensities in both basal nuclei and the left temporal lobe. Encephalitis was suspected, and the patient was treated with intravenous prednisolone pulse therapy (1 g/day) for 3 days and intravenous immunoglobulin therapy for 5 days. A left cervical lymph node biopsy showed apoptotic necrosis in paracortical and cortical areas with an abundance of macrophages and large lymphoid cells, which had irregular nuclei suggestive of Kikuchi-Fujimoto disease; the pathological findings from a brain biopsy were the same as those of the cervical lymph node biopsy. The encephalitis and cervical lymphadenopathies followed a benign course, as did the testitis. Conclusions This is the first report of Kikuchi-Fujimoto disease involving painful testitis and pathologically proven asymmetrical brain regions. Kikuchi-Fujimoto disease should be included in the differential diagnosis when a patient presents with encephalitis, testitis, and fever of unknown origin.
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Affiliation(s)
- Hidenori Kido
- Department of General Medicine and Emergency Care, Toho University School of Medicine, 6-11-1 Omorinishi Ota-ku, Tokyo, 143-8541, Japan.
| | - Osamu Kano
- Division of Neurology, Department of Internal Medicine, Toho University School of Medicine, Tokyo, Japan
| | - Asami Hamai
- Department of General Medicine and Emergency Care, Toho University School of Medicine, 6-11-1 Omorinishi Ota-ku, Tokyo, 143-8541, Japan
| | - Hiroyuki Masuda
- Department of Neurosurgery Radiology, Toho University School of Medicine, Tokyo, Japan
| | - Yutaka Fuchinoue
- Department of Neurosurgery Radiology, Toho University School of Medicine, Tokyo, Japan
| | - Masaaki Nemoto
- Department of Neurosurgery Radiology, Toho University School of Medicine, Tokyo, Japan
| | - Chiaki Arai
- Department of Otorhinolaryngology, Toho University School of Medicine, Tokyo, Japan
| | - Teppei Takeda
- Department of Otorhinolaryngology, Toho University School of Medicine, Tokyo, Japan
| | - Fumihito Yamabe
- Department of Urology, Toho University School of Medicine, Tokyo, Japan
| | - Toshihiro Tai
- Department of Urology, Toho University School of Medicine, Tokyo, Japan
| | - Mizuki Kasahara
- Department of Urology, Toho University School of Medicine, Tokyo, Japan
| | - Kenichi Suzuki
- Department of Radiology, Toho University School of Medicine, Tokyo, Japan
| | - Nobuyuki Shiraga
- Department of Radiology, Toho University School of Medicine, Tokyo, Japan
| | - Sota Sadamoto
- Department of Pathology, Toho University School of Medicine, Tokyo, Japan
| | - Megumi Wakayama
- Department of Pathology, Toho University School of Medicine, Tokyo, Japan
| | - Yukitoshi Takahashi
- Epilepsy Center, Shizuoka Institute of Epilepsy and Neurological, Tokyo, Japan
| | - Yasuo Iwasaki
- Division of Neurology, Department of Internal Medicine, Toho University School of Medicine, Tokyo, Japan
| | - Kazutoshi Shibuya
- Department of Pathology, Toho University School of Medicine, Tokyo, Japan
| | - Yoshihisa Urita
- Department of General Medicine and Emergency Care, Toho University School of Medicine, 6-11-1 Omorinishi Ota-ku, Tokyo, 143-8541, Japan
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Kaunzner UW, Salamon E, Pentsova E, Rosenblum M, Karimi S, Nealon N, Lavi E, Jamieson DG. An Acute Disseminated Encephalomyelitis-Like Illness in the Elderly: Neuroimaging and Neuropathology Findings. J Neuroimaging 2016; 27:306-311. [PMID: 27896893 DOI: 10.1111/jon.12409] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 09/24/2016] [Accepted: 10/18/2016] [Indexed: 11/29/2022] Open
Abstract
INTRODUCTION Acute disseminated encephalomyelitis (ADEM) is a rare demyelinating disease of the central nervous system (CNS) that classically occurs in children and adolescents. It characteristically presents with acute inflammation, resulting in demyelination, often following an infectious disease. ADEM has been described in adult patients, but the incidence in the adult and especially elderly population is low. CASES We describe five older adults (age 57 to 85) who presented with acute neurological symptoms. Three patients presented with an infectious illness preceding the event, 4 patients were encephalopathic, and oligoclonal bands (OCBs) were negative in all tested cases. The clinical scenario and imaging studies suggested alternative diagnoses, such as metastasis, primary CNS tumor, or stroke. Two patients had contrast enhancing lesions, two other patients had lesions with restricted diffusion on diffusion-weighted imaging. Neuropathologic diagnostic from biopsy or autopsy was eventually conclusive, showing perivascular zones of myelin loss with relative axonal sparing in all five cases. CONCLUSION Each of these patients was found to have pathological findings of acute demyelination on tissue diagnosis, suggesting ADEM or ADEM-like disease. The initial presentation and imaging was pointing toward other diagnoses. Broad differential diagnosis is important, especially for older patients, and pathological proof might be warranted for a conclusive diagnosis.
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Affiliation(s)
- Ulrike W Kaunzner
- Department of Neurology, NewYork Presbyterian Hospital, Weill Cornell Medicine, 525 East 68th Street, New York, NY, 10065
| | - Elliott Salamon
- Department of Neurology, NewYork Presbyterian Hospital, Weill Cornell Medicine, 525 East 68th Street, New York, NY, 10065
| | - Elena Pentsova
- Department of Neurology, NewYork Presbyterian Hospital, Weill Cornell Medicine, 525 East 68th Street, New York, NY, 10065.,Department of Neurology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065
| | - Marc Rosenblum
- Department of Pathology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065
| | - Sasan Karimi
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065
| | - Nancy Nealon
- Department of Neurology, NewYork Presbyterian Hospital, Weill Cornell Medicine, 525 East 68th Street, New York, NY, 10065
| | - Ehud Lavi
- Department of Pathology, NewYork Presbyterian Hospital, Weill Cornell Medicine, 525 East 68th Street, New York, NY, 10065
| | - Dara G Jamieson
- Department of Neurology, NewYork Presbyterian Hospital, Weill Cornell Medicine, 525 East 68th Street, New York, NY, 10065
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Tomás J, Macário MC, Gaspar E, Santana I. Severe post-influenza (H1N1) encephalitis involving pulvinar nuclei in an adult patient. BMJ Case Rep 2015; 2015:bcr-2015-212667. [PMID: 26494725 DOI: 10.1136/bcr-2015-212667] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Neurological complications of H1N1 infections are mostly found in children, but rare cases of acute encephalopathy and post-infectious encephalitis such as acute disseminated encephalomyelitis (ADEM) have been described in adults. We report a case of an adult presenting with a progressive and severe encephalopathy that developed after H1N1 respiratory infection resolution. Cerebrospinal fluid (CSF) analysis was normal, including negative PCR for herpes simplex virus, H1N1, influenza B and JC virus, and absent oligoclonal IgG bands in CSF and serum. Initial CT scan was normal, but later MRI showed posterior multifocal leucoencephalopathy with pulvinar sign. The delayed neurological findings together with the ancillary investigation, namely the MRI pattern with both grey and white matter involvement, raised the possibility of a post-infectious process, rather than an acute encephalitis. Despite aggressive immunotherapy, the patient experienced severe neurological sequelae. Early recognition of ADEM manifestations by those dealing with H1N1 infection is important as early immunotherapy may improve the prognosis.
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Affiliation(s)
- José Tomás
- Neurology Department, Coimbra Hospital and University Centre, Coimbra, Portugal
| | - Maria Carmo Macário
- Neurology Department, Coimbra Hospital and University Centre, Coimbra, Portugal
| | - Elsa Gaspar
- Department of Internal Medicine, Coimbra Hospital and University Centre, Coimbra, Portugal
| | - Isabel Santana
- Neurology Department, Coimbra Hospital and University Centre, Coimbra, Portugal
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Acute disseminated encephalomyelitis: current knowledge and open questions. J Neurovirol 2015; 21:473-9. [PMID: 26037112 PMCID: PMC7095407 DOI: 10.1007/s13365-015-0353-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 05/20/2015] [Indexed: 01/07/2023]
Abstract
Acute disseminated encephalomyelitis (ADEM) is usually an acute, multi-focal, and monophasic immune-mediated disease of the central nervous system. The disorder is mainly a condition of the pediatric age group, but neurologists are also involved in the management of adult patients. The lack of defined diagnostic criteria for ADEM underlies the limited understanding of its epidemiology, etiology, pathogenesis, course, prognosis, therapy, as well as the association with, and distinction from, multiple sclerosis. The present review summarizes current knowledge and outlines unanswered questions the answers to which should be eventually provided through a synergistic combination of clinical and basic research.
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Stoeter DJ, Michael BD, Solomon T, Poole L. Managing acute central nervous system infections in the UK adult intensive care unit in the wake of UK encephalitis guidelines. J Intensive Care Soc 2015; 16:330-338. [PMID: 28979440 DOI: 10.1177/1751143715587927] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The acute central nervous system infections meningitis and encephalitis commonly require management on intensive care units. The clinical features often overlap and in the acute phase-altered consciousness and seizures may also need to be managed. In April 2012, the first UK national guideline for the management of suspected viral encephalitis was published by the British Infection Association and Association of British Neurologists, and other key stakeholders, and included a simple management algorithm. The new guideline results from evidence demonstrating a number of common oversights in the standard management of suspected viral encephalitis in many settings. In combination with British Infection Association meningitis guidelines, evidence-based approaches now exist to facilitate the non-expert managing patients with suspected central nervous system infections. Here we bring together these guidelines and the supporting evidence applicable for intensivists into a single resource.
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Affiliation(s)
- D J Stoeter
- Department of Intensive Care, Royal Liverpool University Hospital, Liverpool, UK
| | - B D Michael
- Institute of Infection and Global Health, and NIHR Health Protection Research Unit in Emerging and Zoonotic Infections, University of Liverpool, UK.,Walton Centre NHS Foundation Trust, Liverpool, UK
| | - T Solomon
- Institute of Infection and Global Health, and NIHR Health Protection Research Unit in Emerging and Zoonotic Infections, University of Liverpool, UK.,Walton Centre NHS Foundation Trust, Liverpool, UK
| | - L Poole
- Department of Intensive Care, Royal Liverpool University Hospital, Liverpool, UK
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Jeong H, Kim SK. Viral Encephalitis. JOURNAL OF NEUROCRITICAL CARE 2014. [DOI: 10.18700/jnc.2014.7.2.86] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Sonneville R, Gault N, de Montmollin E, Klein IF, Mariotte E, Chemam S, Tubach F, Mourvillier B, Timsit JF, Wolff M, Bouadma L. Clinical spectrum and outcomes of patients with encephalitis requiring intensive care. Eur J Neurol 2014; 22:6-16, e1. [PMID: 25174376 DOI: 10.1111/ene.12541] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Accepted: 06/24/2014] [Indexed: 11/26/2022]
Abstract
BACKGROUND AND PURPOSE Our aim was to characterize the clinical profile, temporal changes and outcomes of patients with severe encephalitis. METHODS A retrospective cohort study was conducted on adult patients with encephalitis admitted to the medical intensive care unit (ICU) of a university hospital over a 20-year period. Patients' characteristics and outcomes were compared between two 10-year periods: (i) 1991-2001 and (ii) 2002-2012. Multivariate logistic regression was used to analyze factors associated with a poor outcome, as defined by a modified Rankin scale (mRS) score of 4-6 (severe disability or death) 90 days after admission. RESULTS A total of 279 patients were studied. Causes of encephalitis were infections (n = 149, 53%), immune-mediated causes (n = 41, 15%) and undetermined causes (n = 89, 32%). The distribution of causes differed significantly between the two periods, with an increase in the proportion of encephalitis recognized to be of immune-mediated causes. At day 90, 208 (75%) patients had an mRS = 0-3 and 71 (25%) had an mRS = 4-6. After adjustment for functional status before admission, the following parameters were independently associated with a poor outcome: coma [odds ratio (OR) 7.09, 95% confidence interval (95% CI) 3.06-17.03], aspiration pneumonia (OR 4.02, 95% CI 1.47-11.03), a lower body temperature (per 1 degree, OR 0.72, 95% CI 0.53-0.97), elevated cerebrospinal fluid protein levels (per 1 g/l, OR 1.55, 95% CI 1.17-2.11) and delayed ICU admission (per 1 day, OR 1.04, 95% CI 1.01-1.07). CONCLUSIONS Indicators of outcome in adult patients with severe encephalitis reflect both the severity of illness and systemic complications. Our data suggest that patients with acute encephalitis may benefit from early ICU admission.
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Affiliation(s)
- R Sonneville
- Assistance Publique Hôpitaux de Paris AP-HP, Hôpital Bichat - Claude-Bernard, Service de Réanimation Médicale et Infectieuse, Université Paris Diderot, Sorbonne Paris Cité, Paris, France
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A rare sequela of acute disseminated encephalomyelitis. Case Rep Neurol Med 2014; 2014:291380. [PMID: 24977089 PMCID: PMC4058240 DOI: 10.1155/2014/291380] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2014] [Accepted: 05/13/2014] [Indexed: 11/18/2022] Open
Abstract
Acute disseminated encephalomyelitis is a demyelinating disease, typically occurring in children following a febrile infection or a vaccination. Primary and secondary immune responses contribute to inflammation and subsequent demyelination, but the exact pathogenesis is still unknown. Diagnosis of acute disseminated encephalomyelitis is strongly suggested by temporal relationship between an infection or an immunization and the onset of neurological symptoms. Biopsy is definitive. In general, the disease is self-limiting and the prognostic outcome is favorable with anti-inflammatory and immunosuppressive agents. Locked-in syndrome describes patients who are awake and conscious but have no means of producing limb, speech, or facial movements. Locked-in syndrome is a rare complication of acute disseminated encephalomyelitis. We present a case of incomplete locked-in syndrome occurring in a 34-year-old male secondary to acute disseminated encephalomyelitis. Our case is unique, as acute disseminated encephalomyelitis occurred in a 34-year-old which was poorly responsive to immunosuppression resulting in severe disability.
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Fujimori J, Nakashima I, Kuroda H, Fujihara K, Aoki M. Cerebrospinal fluid CXCL13 is a prognostic marker for aseptic meningitis. J Neuroimmunol 2014; 273:77-84. [PMID: 24907903 DOI: 10.1016/j.jneuroim.2014.05.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Revised: 05/13/2014] [Accepted: 05/14/2014] [Indexed: 11/16/2022]
Abstract
In exceptional cases, patients with aseptic meningitis eventually develop aseptic meningoencephalitis. To find a candidate marker for the development of aseptic meningoencephalitis in adult patients diagnosed with aseptic meningitis, we compared 12 different cytokines/chemokines in cerebrospinal fluid (CSF) from 5 patients with aseptic meningoencephalitis, 8 patients with aseptic meningitis, and 8 patients with control disease. Only the CXCL13 concentration was significantly elevated in the CSF of the group with aseptic meningoencephalitis compared with the group with aseptic meningitis. Thus, CSF CXCL13 may be a useful marker for predicting the prognosis of aseptic meningitis.
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Affiliation(s)
- Juichi Fujimori
- Department of Neurology, Tohoku Pharmaceutical University Hospital, Sendai, Japan.
| | - Ichiro Nakashima
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hiroshi Kuroda
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kazuo Fujihara
- Department of Multiple Sclerosis Therapeutics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Masashi Aoki
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
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Shiel RE, Kennedy LJ, Nolan CM, Mooney CT, Callanan JJ. Major histocompatibility complex class II alleles and haplotypes associated with non-suppurative meningoencephalitis in greyhounds. ACTA ACUST UNITED AC 2014; 84:271-6. [PMID: 24851745 DOI: 10.1111/tan.12365] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Revised: 03/27/2014] [Accepted: 04/01/2014] [Indexed: 12/31/2022]
Abstract
Non-suppurative meningoencephalitis is a breed-restricted canine neuroinflammatory disorder affecting young greyhounds in Ireland. A genetic risk factor is suspected because of the development of disease in multiple siblings and an inability to identify a causative infectious agent. The aim of this study was to examine potential associations between dog leucocyte antigen (DLA) class II haplotype and the presence of the disease. DLA three locus haplotypes were determined in 31 dogs with non-suppurative meningoencephalitis and in 115 healthy control dogs using sequence-based typing (SBT) methods. All dogs were unrelated at the parental level. Two haplotypes (DRB1*01802/DQA1*00101/DQB1*00802 and DRB1*01501/DQA1*00601/DQB1*02201) were significantly (P = 0.0099 and 0.037) associated with the presence of meningoencephalitis, with odds ratios (95% confidence interval) of 5.531 (1.168-26.19) and 3.736 (1.446-9.652), respectively. These results confirm that there is an association between DLA class II haplotype and greyhound meningoencephalitis, suggesting an immunogenetic risk factor for the development of the disease. Greyhound meningoencephalitis may be a suitable model for human neuroinflammatory diseases with an immunogenetic component.
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Affiliation(s)
- R E Shiel
- Section of Veterinary Clinical Studies, University College Dublin, Belfield, Dublin 4, Ireland
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Cho TA, Mckendall RR. Clinical approach to the syndromes of viral encephalitis, myelitis, and meningitis. HANDBOOK OF CLINICAL NEUROLOGY 2014; 123:89-121. [PMID: 25015482 DOI: 10.1016/b978-0-444-53488-0.00004-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Tracey A Cho
- Department of Neurology, Harvard Medical School and Neuro-ID Program, Massachusetts General Hospital, Boston, MA, USA
| | - Robert R Mckendall
- Departments of Neurology and Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, USA.
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Abstract
Invasion of the central nervous system (CNS) by viral agents typically produces a meningoencephalitis in which either meningitis or encephalitis may predominate. Viruses may also infect cranial or spinal blood vessels to produce ischemic injury. Viral and other infections may also elicit a host immune response which is cross-reactive with components of the neural tissue, resulting in encephalomyelitis, transverse myelitis, injury to peripheral nerves, or optic neuritis. This chapter discusses the pathogenesis of CNS viral infections and reviews clinical features of these disorders, major agents responsible in immunocompromised and immunocompetent individuals, and treatment. Prion diseases and postinfectious viral CNS syndromes including postinfectious encephalomyelitis, acute hemorrhagic leukoencephalitis, cerebellar ataxia, and transverse myelitis are also discussed.
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Růžek D, Dobler G, Niller HH. May early intervention with high dose intravenous immunoglobulin pose a potentially successful treatment for severe cases of tick-borne encephalitis? BMC Infect Dis 2013; 13:306. [PMID: 23822550 PMCID: PMC3710210 DOI: 10.1186/1471-2334-13-306] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Accepted: 07/02/2013] [Indexed: 12/18/2022] Open
Abstract
Background Arthropod-borne viral encephalitis of diverse origins shows similar clinical symptoms, histopathology and magnetic resonance imaging, indicating that the patho mechanisms may be similar. There is no specific therapy to date. However, vaccination remains the best prophylaxis against a selected few. Regardless of these shortcomings, there are an increasing number of case reports that successfully treat arboviral encephalitis with high doses of intravenous immunoglobulins. Discussion To our knowledge, high dose intravenous immunoglobulin has not been tested systematically for treating severe cases of tick-borne encephalitis. Antibody-dependent enhancement has been suspected, but not proven, in several juvenile cases of tick-borne encephalitis. Although antibody-dependent enhancement during secondary infection with dengue virus has been documented, no adverse effects were noticed in a controlled study of high dose intravenous immunoglobulin therapy for dengue-associated thrombocytopenia. The inflammation-dampening therapeutic effects of generic high dose intravenous immunoglobulins may override the antibody-dependent enhancement effects that are potentially induced by cross-reactive antibodies or by virus-specific antibodies at sub-neutralizing levels. Summary Analogous to the increasing number of case reports on the successful treatment of other arboviral encephalitides with high dose intravenous immunoglobulins, we postulate whether it may be possible to also treat severe cases of tick-borne encephalitis with high dose intravenous immunoglobulins as early in the course of the disease as possible.
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Affiliation(s)
- Daniel Růžek
- Academy of Sciences of the Czech Republic, Biology Centre, Institute of Parasitology, Branisovska: 31, CZ-37005 Ceske Budejovice, Czech Republic
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Engelmann I, Nasser H, Belmiloudi S, Le Guern R, Dewilde A, Vallée L, Hober D. Clinically severe Epstein-Barr virus encephalitis with mild cerebrospinal fluid abnormalities in an immunocompetent adolescent: a case report. Diagn Microbiol Infect Dis 2013; 76:232-4. [DOI: 10.1016/j.diagmicrobio.2013.02.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Revised: 01/30/2013] [Accepted: 02/19/2013] [Indexed: 11/26/2022]
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Abstract
PURPOSE OF REVIEW Encephalitis and postinfectious encephalitis represent two important conditions for the neurologist, both in terms of their presentations as neurologic emergencies and their potential to cause death or serious neurologic impairment. This article reviews the major infectious and noninfectious causes of encephalitis and discusses postinfectious encephalitis as an indirect effect of systemic illness. RECENT FINDINGS Encephalitis caused by herpes simplex virus type 1 and West Nile virus are of major importance. In addition, within the past few years we have gained improved understanding of the neurologic syndromes caused by varicella-zoster virus, the recognition of enterovirus 71 as a significant human pathogen, and the realization that encephalitis may also occur by autoimmune mechanisms requiring immunosuppressive therapy. We have also learned that postinfectious encephalitis may be recurrent rather than monophasic, and that children and adults initially diagnosed with postinfectious encephalitis may later develop classic multiple sclerosis. SUMMARY Encephalitis and postinfectious encephalitis present as neurologic emergencies requiring prompt diagnosis and initiation of treatment. Important concerns are to identify infectious conditions requiring antibiotic or antiviral therapy and postinfectious or other autoimmune encephalitides requiring immunosuppression.
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Affiliation(s)
- John E Greenlee
- University of Utah, Clinical Neuroscience Center, 175 North Medical Dr E, Salt Lake City, UT 84132, USA.
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Williams T, Thorpe J. Post-infective transverse myelitis following Streptococcus pneumoniae meningitis with radiological features of acute disseminated encephalomyelitis: a case report. J Med Case Rep 2012; 6:313. [PMID: 22992300 PMCID: PMC3469354 DOI: 10.1186/1752-1947-6-313] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2012] [Accepted: 07/19/2012] [Indexed: 12/05/2022] Open
Abstract
Introduction Post-infectious autoimmune demyelination of the central nervous system is a rare neurological disorder typically associated with exanthematous viral infections. We report an unusual presentation of the condition and a previously undocumented association with Streptococcus pneumonia meningitis. Case presentation A 50-year-old Caucasian woman presented to our facility with an acute myelopathy three days after discharge following acute Streptococcus pneumoniae meningitis. Imaging studies of the spine ruled out an infective focus and no other lesions were seen within the cord. Diffuse, bilateral white matter lesions were seen within the cerebral hemispheres, and our patient was diagnosed as having a post-infective demyelination syndrome that met the diagnostic criteria for an acute transverse myelitis. Our patient clinically and radiologically improved following treatment with steroids. Conclusions The novel association of a Streptococcus pneumoniae infection with post-infectious autoimmune central nervous system demyelination should alert the reader to the potentially causative role of this common organism, and gives insights into the pathogenesis. The unusual dissociation between the clinical presentation and the location of the radiological lesions should also highlight the potential for the condition to mimic the presentation of others, and stimulates debate on the definitions of acute transverse myelitis and acute disseminated encephalomyelitis, and their potential overlap.
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Affiliation(s)
- Thomas Williams
- Addenbrooke's Hospital, University of Cambridge School of Clinical Medicine, Box 111, Hills Road, Cambridge, CB2 0SP, UK.
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Tkaczyk ER. Reversible Leukoencephalopathy—A Differential Diagnosis Beyond Posterior Reversible Encephalopathy Syndrome. Neuroophthalmology 2012. [DOI: 10.3109/01658107.2012.702293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Buonsenso D, Focarelli B, Valentini P, Onesimo R. IVIG treatment for VZV-related acute inflammatory polyneuropathy in a child. BMJ Case Rep 2012; 2012:bcr-2012-006362. [PMID: 22814982 DOI: 10.1136/bcr-2012-006362] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Acute inflammatory polyneuropathy is an inflammatory demyelinating disease triggered by an autoimmune mechanism. It follows an infection or an immunisation after a free interval of 2-30 days. We report a case of a 14-year-old boy who develops an acute rapidly progressive paraplegia, urine incontinence and positive Lasegue a week after a characteristic chickenpox rash. Spinal MRI showed diffuse thickening and leptomeningeal enhancement of cauda equina nerve roots. Intravenous immunoglobulins were given and yielded a dramatic clinical and radiological improvement. The patient was discharged without any clinical problems 1 month after the onset of symptoms. We performed a review of the literature, discussing the different forms of varicella-zoster virus-related central and peripheral nervous system complications and management strategies for acute postinfectious encephalomyelitis/radiculitis.
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Affiliation(s)
- Danilo Buonsenso
- Department of Pediatrics, Pediatric Infectious Diseases Unit, Catholic University of the Sacred Heart, Rome, Italy
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Abstract
Acute disseminated encephalomyelitis (ADEM) is a disorder of the central nervous system (CNS) characterized by an acute event, typically with encephalopathy, in which diffuse CNS involvement occurs. It may follow an infectious event and occurs more commonly in young children. Pulse steroid treatment is frequently used to treat ADEM. Although ADEM is typically described as a benign condition, with children generally recovering motor function and resolution of lesions on magnetic resonance imaging (MRI), residual cognitive deficits may occur. This chapter aims to review the clinical features, typical presentation, differential diagnosis, treatment and prognosis of ADEM.
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Novo-Veleiro I, Perianes-Díaz ME, Morán Sánchez JC, Ojeda Rodríguez SG, Alonso Claudio G, Jiménez López A. [Acute disseminated encephalomyelitis after influenza A virus (H1N1) infection]. Rev Clin Esp 2012; 212:e28-31. [PMID: 22264549 DOI: 10.1016/j.rce.2011.11.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Revised: 10/19/2011] [Accepted: 11/13/2011] [Indexed: 10/14/2022]
Affiliation(s)
- I Novo-Veleiro
- Servicio de Medicina Interna, Hospital Universitario de Salamanca, Salamanca, España.
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