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Gagliano A, Carta A, Tanca MG, Sotgiu S. Pediatric Acute-Onset Neuropsychiatric Syndrome: Current Perspectives. Neuropsychiatr Dis Treat 2023; 19:1221-1250. [PMID: 37251418 PMCID: PMC10225150 DOI: 10.2147/ndt.s362202] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 05/03/2023] [Indexed: 05/31/2023] Open
Abstract
Pediatric acute-onset neuropsychiatric syndrome (PANS) features a heterogeneous constellation of acute obsessive-compulsive disorder (OCD), eating restriction, cognitive, behavioral and/or affective symptoms, often followed by a chronic course with cognitive deterioration. An immune-mediated etiology is advocated in which the CNS is hit by different pathogen-driven (auto)immune responses. This narrative review focused on recent clinical (ie, diagnostic criteria, pre-existing neurodevelopmental disorders, neuroimaging) and pathophysiological (ie, CSF, serum, genetic and autoimmune findings) aspects of PANS. We also summarized recent points to facilitate practitioners with the disease management. Relevant literature was obtained from PubMed database which included only English-written, full-text clinical studies, case reports, and reviews. Among a total of 1005 articles, 205 were pertinent to study inclusion. Expert opinions are converging on PANS as the effect of post-infectious events or stressors leading to "brain inflammation", as it is well-established for anti-neuronal psychosis. Interestingly, differentiating PANS from either autoimmune encephalitides and Sydenham's chorea or from alleged "pure" psychiatric disorders (OCD, tics, Tourette's syndrome), reveals several overlaps and more analogies than differences. Our review highlights the need for a comprehensive algorithm to help both patients during their acute distressing phase and physicians during their treatment decision. A full agreement on the hierarchy of each therapeutical intervention is missing owing to the limited number of randomized controlled trials. The current approach to PANS treatment emphasizes immunomodulation/anti-inflammatory treatments in association with both psychotropic and cognitive-behavioral therapies, while antibiotics are suggested when an active bacterial infection is established. A dimensional view, taking into account the multifactorial origin of psychiatric disorders, should suggest neuro-inflammation as a possible shared substrate of different psychiatric phenotypes. Hence, PANS and PANS-related disorders should be considered as a conceptual framework describing the etiological and phenotypical complexity of many psychiatric disorders.
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Affiliation(s)
- Antonella Gagliano
- Department of Health Science, "Magna Graecia" University of Catanzaro, Catanzaro, Italy
- Department of Biomedical Sciences, University of Cagliari & "A. Cao" Paediatric Hospital, Child & Adolescent Neuropsychiatry Unit, Cagliari, Italy
| | - Alessandra Carta
- Department of Medicine, Surgery and Pharmacy, University of Sassari, Unit of Child Neuropsychiatry, Sassari, Italy
| | - Marcello G Tanca
- Department of Biomedical Sciences, University of Cagliari & "A. Cao" Paediatric Hospital, Child & Adolescent Neuropsychiatry Unit, Cagliari, Italy
| | - Stefano Sotgiu
- Department of Medicine, Surgery and Pharmacy, University of Sassari, Unit of Child Neuropsychiatry, Sassari, Italy
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2
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Cocuzza S, Maniaci A, La Mantia I, Nocera F, Caruso D, Caruso S, Iannella G, Vicini C, Privitera E, Lechien JR, Pavone P. Obsessive-Compulsive Disorder in PANS/PANDAS in Children: In Search of a Qualified Treatment-A Systematic Review and Metanalysis. CHILDREN (BASEL, SWITZERLAND) 2022; 9:children9020155. [PMID: 35204876 PMCID: PMC8869780 DOI: 10.3390/children9020155] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 01/18/2022] [Indexed: 12/05/2022]
Abstract
Background: Several treatment options have been proposed for pediatric acute-onset neuropsychiatric syndrome/pediatric autoimmune neuropsychiatric disorder associated with streptococcal infection (PANS/PANDAS). Still, no clear therapeutic protocol has been recognized to prevent these neuropsychiatric diseases. The study aims to report on the literature evidence and different treatment strategies related to these disorders. Methods: We analyzed the last 20 years’ English language literature and performed a comprehensive review of the PANS/PANDAS treatment, including studies reporting OCD outcomes post-treatment follow-up. Results: We covered 11 articles in our systematic literature review for a total of 473 patients, of which four studies included 129 surgical subjects and seven papers with 326 medically treated patients. Pooled outcomes analysis, surgical and medical treatment reported an OCD reduction, but no statistical significance was obtained (p < 0.05 for both). Conclusions: Surgical therapy in selected patients can lead to promising results, although further evidence is needed. On the other hand, the role of medical therapy remains controversial, often due to the lack of univocal curative protocols and variable responses depending on the drug used and the timing of administration. Therefore, further investigations are necessary to clarify the most appropriate therapeutic procedure.
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Affiliation(s)
- Salvatore Cocuzza
- Department of Medical and Surgical Sciences and Advanced Technologies “GF Ingrassia”, ENT Section, University of Catania, 95123 Catania, Italy; (S.C.); (A.M.); (I.L.M.); (F.N.); (S.C.); (E.P.)
| | - Antonino Maniaci
- Department of Medical and Surgical Sciences and Advanced Technologies “GF Ingrassia”, ENT Section, University of Catania, 95123 Catania, Italy; (S.C.); (A.M.); (I.L.M.); (F.N.); (S.C.); (E.P.)
| | - Ignazio La Mantia
- Department of Medical and Surgical Sciences and Advanced Technologies “GF Ingrassia”, ENT Section, University of Catania, 95123 Catania, Italy; (S.C.); (A.M.); (I.L.M.); (F.N.); (S.C.); (E.P.)
| | - Francesco Nocera
- Department of Medical and Surgical Sciences and Advanced Technologies “GF Ingrassia”, ENT Section, University of Catania, 95123 Catania, Italy; (S.C.); (A.M.); (I.L.M.); (F.N.); (S.C.); (E.P.)
| | - Daniela Caruso
- Unit of Clinical Pediatrics, A.O.U. “Policlinico”, P.O. “G. Rodolico”, University of Catania, 95123 Catania, Italy;
| | - Sebastiano Caruso
- Department of Medical and Surgical Sciences and Advanced Technologies “GF Ingrassia”, ENT Section, University of Catania, 95123 Catania, Italy; (S.C.); (A.M.); (I.L.M.); (F.N.); (S.C.); (E.P.)
| | - Giannicola Iannella
- Department of Head-Neck Surgery, Otolaryngology, Head-Neck and Oral Surgery Unit, Morgagni Pierantoni Hospital, 47121 Forlì, Italy; (G.I.); (C.V.)
- Department of Sensory Organs, Sapienza University of Rome, 00194 Rome, Italy
| | - Claudio Vicini
- Department of Head-Neck Surgery, Otolaryngology, Head-Neck and Oral Surgery Unit, Morgagni Pierantoni Hospital, 47121 Forlì, Italy; (G.I.); (C.V.)
| | - Elio Privitera
- Department of Medical and Surgical Sciences and Advanced Technologies “GF Ingrassia”, ENT Section, University of Catania, 95123 Catania, Italy; (S.C.); (A.M.); (I.L.M.); (F.N.); (S.C.); (E.P.)
| | - Jerome Rene Lechien
- Department of Human Anatomy and Experimental Oncology, Faculty of Medicine, UMONS Research Institute for Health Sciences and Technology, University of Mons (UMons), 7000 Mons, Belgium;
| | - Piero Pavone
- Unit of Clinical Pediatrics, A.O.U. “Policlinico”, P.O. “G. Rodolico”, University of Catania, 95123 Catania, Italy;
- Correspondence:
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3
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Plasmapheresis, Rituximab, and Ceftriaxone Provided Lasting Improvement for a 27-Year-Old Adult Male with Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal Infections (PANDAS). Case Rep Psychiatry 2021; 2021:8697902. [PMID: 34765265 PMCID: PMC8577953 DOI: 10.1155/2021/8697902] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 10/19/2021] [Accepted: 10/25/2021] [Indexed: 11/24/2022] Open
Abstract
Pediatric autoimmune neuropsychiatric disorders associated with streptococcal infections (PANDAS) is a specific autoimmune response to group-A streptococcal (GAS) infections in children and adolescents with a sudden onset of neuropsychiatric disorders including obsessive-compulsive disorder (OCD) or tic-like symptoms. We present a case report of a 27-year-old male patient who had lasting improvement with plasmapheresis, rituximab, and ceftriaxone. Our patient first developed sudden psychosis and confusion after GAS infections at age 17. He had elevated anti-streptolysin O (ASO) titers, negative urine drug screen, no ETOH in blood, normal CBC, normal TSH, normal salicylate, normal acetaminophen, and a normal head CT. The tentative diagnosis of PANDAS was made, and the patient was thereafter treated with antipsychotics, antibiotics, tonsillectomy, and IVIG which resulted in remissions and relapses of his neuropsychiatric symptoms. Once he reached age 27, he received a trial of therapeutic plasma exchange (TPE), rituximab, and ceftriaxone. This eventually resulted in sustained benefit and minimal fluctuations of his clinical symptoms. Our report is noteworthy in three ways.One, he is a 27-year-old adult with PANDAS.Two, he improved after TPE, rituximab, and ceftriaxone. Our literature search yielded minimal data on the use of plasmapheresis for nonteenage adults with PANDAS. Three, he had unusual symptoms of PANDAS, as the typical OCD and/or tic-like symptoms were not observed.
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4
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Prato A, Gulisano M, Scerbo M, Barone R, Vicario CM, Rizzo R. Diagnostic Approach to Pediatric Autoimmune Neuropsychiatric Disorders Associated With Streptococcal Infections (PANDAS): A Narrative Review of Literature Data. Front Pediatr 2021; 9:746639. [PMID: 34778136 PMCID: PMC8580040 DOI: 10.3389/fped.2021.746639] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 09/24/2021] [Indexed: 12/12/2022] Open
Abstract
Pediatric autoimmune neuropsychiatric disorders associated with streptococcal infections (PANDAS) are clinical conditions characterized by the sudden onset of obsessive-compulsive disorder and/or tics, often accompanied by other behavioral symptoms in a group of children with streptococcal infection. PANDAS-related disorders, including pediatric acute-onset neuropsychiatric syndrome (PANS), childhood acute neuropsychiatric symptoms (CANS), and pediatric infection triggered autoimmune neuropsychiatric disorders (PITANDs), have also been described. Since first defined in 1998, PANDAS has been considered a controversial diagnosis. A comprehensive review of the literature was performed on PubMed and Scopus databases, searching for diagnostic criteria and diagnostic procedures of PANDAS and related disorders. We propose a test panel to support clinicians in the workout of PANDAS/PANS patients establishing an appropriate treatment. However, further studies are needed to improve our knowledge on these acute-onset neuropsychiatric conditions.
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Affiliation(s)
- Adriana Prato
- Department of Cognitive Sciences, Psychology, Education and Cultural Studies, University of Messina, Messina, Italy.,Child and Adolescent Neurology and Psychiatric Section, Department of Clinical and Experimental Medicine, Catania University, Catania, Italy
| | - Mariangela Gulisano
- Child and Adolescent Neurology and Psychiatric Section, Department of Clinical and Experimental Medicine, Catania University, Catania, Italy
| | - Miriam Scerbo
- Child and Adolescent Neurology and Psychiatric Section, Department of Clinical and Experimental Medicine, Catania University, Catania, Italy
| | - Rita Barone
- Child and Adolescent Neurology and Psychiatric Section, Department of Clinical and Experimental Medicine, Catania University, Catania, Italy
| | - Carmelo M Vicario
- Department of Cognitive Sciences, Psychology, Education and Cultural Studies, University of Messina, Messina, Italy
| | - Renata Rizzo
- Child and Adolescent Neurology and Psychiatric Section, Department of Clinical and Experimental Medicine, Catania University, Catania, Italy
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Abstract
This review and commentary is the product of an invited lecture called "Autoimmunity: PANS/PANDAS" presented at the 2018 Neurobiology of Diseases in Children Symposium in Chicago, IL. The talk addressed clinical and scientific questions and recently published data. At this time, among highly experienced and respected clinicians and researchers spanning relevant disciplines, there is substantial controversy regarding a role for inflammation in producing tics and obsessive-compulsive disorder. This commentary summarizes these controversies, discusses reasons for opposing views on best clinical practices, and concludes with suggestions for pathways forward.
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Affiliation(s)
- Donald L. Gilbert
- Division of Neurology, Department of Pediatrics, Cincinnati Children’s Hospital Medical Center and University of Cincinnati College of Medicine, Cincinnati, OH, USA
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6
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Gerentes M, Pelissolo A, Rajagopal K, Tamouza R, Hamdani N. Obsessive-Compulsive Disorder: Autoimmunity and Neuroinflammation. Curr Psychiatry Rep 2019; 21:78. [PMID: 31367805 DOI: 10.1007/s11920-019-1062-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
PURPOSE OF REVIEW Here, we propose to review the immuno-inflammatory hypothesis in OCD given the concurrent incidence of autoimmune comorbidities, infectious stigma, and raised levels of inflammatory markers in a significant subset of patients. A better understanding of the immune dysfunction in OCD may allow stratifying the patients in order to design personalized pharmaco/psychotherapeutic strategies. RECENT FINDINGS A persistent low-grade inflammation involving both innate and adaptive immune system with coexisting autoimmune morbidities and stigma of infectious events has been prominently observed in OCD. Hence, specific treatments targeting inflammation/infection are a feasible alternative in OCD. This review highlights that OCD is associated with low-grade inflammation, neural antibodies, and neuro-inflammatory and auto-immune disorders. In some subset of OCD patients, autoimmunity is likely triggered by specific bacterial, viral, or parasitic agents with overlapping surface epitopes in CNS. Hence, subset-profiling in OCD is warranted to benefit from distinct immune-targeted treatment modalities.
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Affiliation(s)
- Mona Gerentes
- Inserm U955, Team 15, Genetic Psychiatry, 94000, Creteil, France.,AP-HP, DHU Pe-PSY, Henri Mondor - Albert Chenevier, group, Psychiatry, 94000, Creteil, France
| | - Antoine Pelissolo
- Inserm U955, Team 15, Genetic Psychiatry, 94000, Creteil, France.,AP-HP, DHU Pe-PSY, Henri Mondor - Albert Chenevier, group, Psychiatry, 94000, Creteil, France.,Faculté de médecine, UPEC, Université Paris-Est, 94000, Créteil, France
| | | | - Ryad Tamouza
- Inserm U955, Team 15, Genetic Psychiatry, 94000, Creteil, France.,AP-HP, DHU Pe-PSY, Henri Mondor - Albert Chenevier, group, Psychiatry, 94000, Creteil, France
| | - Nora Hamdani
- Inserm U955, Team 15, Genetic Psychiatry, 94000, Creteil, France. .,AP-HP, DHU Pe-PSY, Henri Mondor - Albert Chenevier, group, Psychiatry, 94000, Creteil, France.
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7
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Kryukov AI, Gurov AV, Izotova GN, Lapenko EG. [Bacteriophages therapy in otorhinolaryngology. History and contemporaneity]. Vestn Otorinolaringol 2019; 84:84-89. [PMID: 30938351 DOI: 10.17116/otorino20198401184] [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] [Indexed: 11/17/2022]
Abstract
Bacterial infections of the upper respiratory tract in the structure of the incidence of the population ranked second. Recently in practice there are more and more cases of a protracted course of the disease, chronic inflammation, as well as various kinds of complications. The abuse and misuse of antibiotics has contributed to the growth of antibiotic-resistant bacterial strains. This problem is named one of the most pressing for public health in the world. In this regard, the topical issue is the search for alternative drugs foe treating infectious diseases. Bacteriophage preparations that have a 100-year history and have gone a long way in development have shown their effectiveness as an alternative to antibiotics, and as an additional therapy in the treatment of certain bacterial infections. This review includes data from various studies available in English, as well as the results of domestic reports published in Russian scientific literature.
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Affiliation(s)
- A I Kryukov
- L.I. Sverzhevsky Research Clinical Institute of Otorhinolaryngology, Moscow Health Department, Moscow, Russia
| | - A V Gurov
- L.I. Sverzhevsky Research Clinical Institute of Otorhinolaryngology, Moscow Health Department, Moscow, Russia
| | - G N Izotova
- L.I. Sverzhevsky Research Clinical Institute of Otorhinolaryngology, Moscow Health Department, Moscow, Russia
| | - E G Lapenko
- L.I. Sverzhevsky Research Clinical Institute of Otorhinolaryngology, Moscow Health Department, Moscow, Russia
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8
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Wilbur C, Bitnun A, Kronenberg S, Laxer RM, Levy DM, Logan WJ, Shouldice M, Yeh EA. PANDAS/PANS in childhood: Controversies and evidence. Paediatr Child Health 2018; 24:85-91. [PMID: 30996598 DOI: 10.1093/pch/pxy145] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 07/13/2018] [Indexed: 12/12/2022] Open
Abstract
Since first defined in 1998, paediatric autoimmune neuropsychiatric disorders associated with streptococcal infections (PANDAS) and its later, broader iteration, paediatric acute-onset neuropsychiatric syndrome (PANS), have garnered significant attention and controversy. The role of streptococcal infection in children with explosive onset obsessive-compulsive disorder and new onset tics, the natural history of this entity, and the role of symptomatic and disease-modifying therapies, including antibiotics, immunotherapy, and psychoactive drugs, are all issues that have yet to be definitively addressed. While definitive proof of the autoimmune hypothesis of PANDAS is lacking, given the heightened attention to this entity and apparent rise in use of this diagnostic category, addressing questions around diagnosis, treatment, and etiology is imperative. In this paper, we review current working definitions of PANDAS/PANS, discuss published evidence for interventions related to this entity, and propose a clinical approach to children presenting with acute symptoms satisfying criteria for PANDAS/PANS.
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Affiliation(s)
- Colin Wilbur
- Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada.,Division of Neuroscience and Mental Health, The Hospital for Sick Children Research Institute, Toronto, Ontario, Canada
| | - Ari Bitnun
- Division of Infectious Diseases, The Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada
| | - Sefi Kronenberg
- Department of Psychiatry, The Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | - Ronald M Laxer
- Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada.,Division of Rheumatology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Deborah M Levy
- Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada.,Division of Rheumatology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - William J Logan
- Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada.,Division of Neuroscience and Mental Health, The Hospital for Sick Children Research Institute, Toronto, Ontario, Canada.,Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada
| | - Michelle Shouldice
- Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada.,Division of Pediatric Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - E Ann Yeh
- Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada.,Division of Neuroscience and Mental Health, The Hospital for Sick Children Research Institute, Toronto, Ontario, Canada.,Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada
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Affiliation(s)
- Monika L Dietrich
- Department of Pediatrics, Tulane University School of Medicine, New Orleans, LA
| | - Russell W Steele
- Department of Pediatrics, Ochsner Health Center for Children, New Orleans, LA.,University of Queensland School of Medicine, Ochsner Clinical School, New Orleans, LA
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10
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Paediatric Autoimmune Neuropsychiatric Disorder Associated with Group A Beta-Haemolytic Streptococcal Infection: An Indication for Tonsillectomy? A Review of the Literature. Int J Otolaryngol 2018; 2018:2681304. [PMID: 29675045 PMCID: PMC5841079 DOI: 10.1155/2018/2681304] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Revised: 11/20/2017] [Accepted: 12/03/2017] [Indexed: 12/03/2022] Open
Abstract
Background. Paediatric Autoimmune Neuropsychiatric Disorder Associated with Streptococcal Infection (PANDAS) is the acute onset of neuropsychiatric symptoms following group A beta-haemolytic streptococcal infection. The aetiology remains elusive. However, with group A streptococcus being the most common bacterial cause of tonsillitis, surgical intervention in the form of tonsillectomy has often been considered as a potential therapy. Methods. A MEDLINE® search was undertaken using keywords “PANDAS” or “paediatric autoimmune neuropsychiatric disorders associated with streptococcus” combined with “tonsillectomy”. Results. Six case reports and 3 case series met the inclusion criteria. Demesh et al. (case series) reported a dramatic reduction in neuropsychiatric symptom severity in the patient cohort undergoing tonsillectomy. Two case series suggest that there is no association between tonsillectomy and resolution of PANDAS. Conclusion. Due to the lack of uniform data and sporadic reports, tonsillectomy should be carefully adopted for the treatment of this disorder. In particular, tonsillectomies/adenoidectomies to alleviate neuropsychiatric symptoms should be avoided until more definitive evidence is at our disposal. This review highlights the importance of a potential collaborative prospective study.
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11
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Treatment of PANDAS and PANS: a systematic review. Neurosci Biobehav Rev 2018; 86:51-65. [DOI: 10.1016/j.neubiorev.2018.01.001] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 11/10/2017] [Accepted: 01/01/2018] [Indexed: 12/25/2022]
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Frankovich J, Swedo S, Murphy T, Dale RC, Agalliu D, Williams K, Daines M, Hornig M, Chugani H, Sanger T, Muscal E, Pasternack M, Cooperstock M, Gans H, Zhang Y, Cunningham M, Bernstein G, Bromberg R, Willett T, Brown K, Farhadian B, Chang K, Geller D, Hernandez J, Sherr J, Shaw R, Latimer E, Leckman J, Thienemann M, PANS/PANDAS Consortium. Clinical Management of Pediatric Acute-Onset Neuropsychiatric Syndrome: Part II-Use of Immunomodulatory Therapies. J Child Adolesc Psychopharmacol 2017; 27:574-593. [PMID: 36358107 PMCID: PMC9836706 DOI: 10.1089/cap.2016.0148] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Introduction: Pediatric Acute-onset Neuropsychiatric Syndrome (PANS) is a clinically heterogeneous disorder with a number of different etiologies and disease mechanisms. Inflammatory and postinfectious autoimmune presentations of PANS occur frequently, with some clinical series documenting immune abnormalities in 75%-80% of patients. Thus, comprehensive treatment protocols must include immunological interventions, but their use should be reserved only for PANS cases in which the symptoms represent underlying neuroinflammation or postinfectious autoimmunity, as seen in the PANDAS subgroup (Pediatric Autoimmune Neuropsychiatric Disorders associated with Streptococcal infections). Methods: The PANS Research Consortium (PRC) immunomodulatory task force is comprised of immunologists, rheumatologists, neurologists, infectious disease experts, general pediatricians, psychiatrists, nurse practitioners, and basic scientists with expertise in neuroimmunology and PANS-related animal models. Preliminary treatment guidelines were created in the Spring of 2014 at the National Institute of Health and refined over the ensuing 2 years over conference calls and a shared web-based document. Seven pediatric mental health practitioners, with expertise in diagnosing and monitoring patients with PANS, were consulted to create categories in disease severity and critically review final recommendations. All authors played a role in creating these guidelines. The views of all authors were incorporated and all authors gave final approval of these guidelines. Results: Separate guidelines were created for the use of immunomodulatory therapies in PANS patients with (1) mild, (2) moderate-to-severe, and (3) extreme/life-threatening severity. For mildly impairing PANS, the most appropriate therapy may be "tincture of time" combined with cognitive behavioral therapy and other supportive therapies. If symptoms persist, nonsteroidal anti-inflammatory drugs and/or short oral corticosteroid bursts are recommended. For moderate-to-severe PANS, oral or intravenous corticosteroids may be sufficient. However, intravenous immunoglobulin (IVIG) is often the preferred treatment for these patients by most PRC members. For more severe or chronic presentations, prolonged corticosteroid courses (with taper) or repeated high-dose corticosteroids may be indicated. For PANS with extreme and life-threatening impairment, therapeutic plasma exchange is the first-line therapy given either alone or in combination with IVIG, high-dose intravenous corticosteroids, and/or rituximab. Conclusions: These recommendations will help guide the use of anti-inflammatory and immunomodulatory therapy in the treatment of PANS.
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Affiliation(s)
- Jennifer Frankovich
- Stanford PANS Clinic and Research Program at Lucile Packard Children's Hospital, Stanford University School of Medicine, Palo Alto, California.,Pediatric Allergy, Immunology, and Rheumatology, Stanford University School of Medicine, Palo Alto, California
| | - Susan Swedo
- Pediatrics and Developmental Neuroscience Branch, National Institute of Mental Health, Bethesda, Maryland
| | - Tanya Murphy
- Rothman Center for Pediatric Neuropsychiatry, Pediatrics and Psychiatry, University of South Florida Morsani College of Medicine, Tampa, Florida
| | - Russell C. Dale
- Paediatrics and Child Health, Institute for Neuroscience and Muscle Research, the Children's Hospital at Westmead, University of Sydney, Sydney, Australia
| | - Dritan Agalliu
- Pathology and Cell Biology (in Neurology and Pharmacology), Columbia University, New York, New York
| | - Kyle Williams
- Pediatric Neuropsychiatry and Immunology Program in the OCD and Related Disorders Program, Harvard Medical School, Boston, Massachusetts
| | - Michael Daines
- Allergy, Immunology, and Rheumatology, The University of Arizona College of Medicine Tuscon, Tuscon, Arizona
| | - Mady Hornig
- Epidemiology, Center for Infection and Immunity, Columbia University Medical Center, New York, New York
| | - Harry Chugani
- Pediatric Neurology, Nemours/Alfred I. duPont Hospital for Children, Wilmington, Delaware
| | - Terence Sanger
- Neurology, University of Southern California Pediatric Movement Disorders Center, Children's Hospital of Los Angeles, Los Angeles, California
| | - Eyal Muscal
- Pediatric Rheumatology, Baylor College of Medicine, Houston, Texas
| | - Mark Pasternack
- Pediatric Infectious Disease, Harvard Medical School, Boston, Massachusetts
| | - Michael Cooperstock
- Pediatric Infectious Diseases, University of Missouri School of Medicine, Columbia, Missouri
| | - Hayley Gans
- Pediatric Infectious Diseases, Stanford University School of Medicine, Stanford, California
| | - Yujuan Zhang
- Pediatric Rheumatology, Tufts University School of Medicine, Boston, Massachusetts
| | - Madeleine Cunningham
- Microbiology and Immunology, College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Gail Bernstein
- Child and Adolescent Psychiatry, University of Minnesota Medical School, Minneapolis, Minnesota
| | - Reuven Bromberg
- Pediatric Rheumatology, Miami Rheumatology, LLC, Miami, Florida
| | - Theresa Willett
- Stanford PANS Clinic and Research Program at Lucile Packard Children's Hospital, Stanford University School of Medicine, Palo Alto, California
| | - Kayla Brown
- Stanford PANS Clinic and Research Program at Lucile Packard Children's Hospital, Stanford University School of Medicine, Palo Alto, California.,Pediatric Allergy, Immunology, and Rheumatology, Stanford University School of Medicine, Palo Alto, California
| | - Bahare Farhadian
- Stanford PANS Clinic and Research Program at Lucile Packard Children's Hospital, Stanford University School of Medicine, Palo Alto, California
| | - Kiki Chang
- Stanford PANS Clinic and Research Program at Lucile Packard Children's Hospital, Stanford University School of Medicine, Palo Alto, California.,Psychiatry and Behavioral Sciences, Child and Adolescent Psychiatry, Stanford University School of Medicine, Palo Alto, California
| | - Daniel Geller
- Pediatric OCD and Tic Disorder Program, Harvard Medical School, Boston, Massachusetts
| | - Joseph Hernandez
- Stanford PANS Clinic and Research Program at Lucile Packard Children's Hospital, Stanford University School of Medicine, Palo Alto, California.,Pediatric Allergy, Immunology, and Rheumatology, Stanford University School of Medicine, Palo Alto, California
| | - Janell Sherr
- Stanford PANS Clinic and Research Program at Lucile Packard Children's Hospital, Stanford University School of Medicine, Palo Alto, California.,Pediatric Allergy, Immunology, and Rheumatology, Stanford University School of Medicine, Palo Alto, California
| | - Richard Shaw
- Psychiatry and Behavioral Sciences, Child and Adolescent Psychiatry, Stanford University School of Medicine, Palo Alto, California
| | - Elizabeth Latimer
- Pediatric Neurology, Georgetown University Hospital, Washington, District of Columbia
| | - James Leckman
- Child Psychiatry, Psychiatry, Psychology and Pediatrics, Yale Child Study Center, Yale School of Medicine, New Haven, Connecticut
| | - Margo Thienemann
- Stanford PANS Clinic and Research Program at Lucile Packard Children's Hospital, Stanford University School of Medicine, Palo Alto, California.,Psychiatry and Behavioral Sciences, Child and Adolescent Psychiatry, Stanford University School of Medicine, Palo Alto, California
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Cooperstock MS, Swedo SE, Pasternack MS, Murphy TK. Clinical Management of Pediatric Acute-Onset Neuropsychiatric Syndrome: Part III-Treatment and Prevention of Infections. J Child Adolesc Psychopharmacol 2017; 27:594-606. [PMID: 36358106 PMCID: PMC9836684 DOI: 10.1089/cap.2016.0151] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Objectives: Pediatric acute-onset neuropsychiatric syndrome (PANS) and its subset, pediatric autoimmune neuropsychiatric disorder associated with streptococcal infection (PANDAS), are emerging autoimmune encephalopathies of childhood. Management guidelines are needed. This article, from the PANS/PANDAS Consortium, presents a consensus management guideline for the infection components. Accompanying papers from the Consortium discuss psychiatric and immunomodulatory management. Methods: Literature was reviewed and integrated with the clinical experience of the authors to provide a set of practical guidelines. This article was submitted to all members of the PANS/PANDAS Consortium, and their additional comments were added. Results: The relationships between PANS and infections are reviewed. An approach to the retrospective diagnosis of group A streptococcal infection for an operational definition of PANDAS is proposed. An initial course of anti-streptococcal treatment is proposed for all newly diagnosed PANS cases. Chronic secondary antimicrobial prophylaxis is suggested for children with PANDAS who have severe neuropsychiatric symptoms or recurrent group A Streptococcus-associated exacerbations. Guidelines for children with non-streptococcal PANS include vigilance for streptococcal pharyngitis or dermatitis in the patient and close contacts. All patients with PANS or PANDAS should also be closely monitored for other intercurrent infections, including sinusitis and influenza. Intercurrent infections should be diagnosed and treated promptly according to current standard guidelines. A guideline for the assessment of infection at initial onset or during neuropsychiatric exacerbations is also presented. Standard immunizations and attention to vitamin D are encouraged. Data indicating limited utility of adenotonsillectomy and probiotics are presented. Conclusion: A working guideline for the management of infection issues in PANS and PANDAS, based on literature and expert opinion, is provided.
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Affiliation(s)
- Michael S Cooperstock
- Division of Infectious Diseases, University of Missouri School of Medicine, Columbia, Missouri
| | - Susan E Swedo
- Department of Pediatrics and Developmental Neuroscience Branch, National Institute of Mental Health (NIMH), Rockville, Maryland
| | - Mark S Pasternack
- Department of Pediatric Infectious Disease, Massachusetts General Hospital, Boston, Massachusetts
| | - Tanya K Murphy
- Director and Professor of Pediatric Neuropsychiatry, Pediatrics and Psychiatry, University of South Florida, St. Petersburg, Florida
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Chiarello F, Spitoni S, Hollander E, Matucci Cerinic M, Pallanti S. An expert opinion on PANDAS/PANS: highlights and controversies. Int J Psychiatry Clin Pract 2017; 21:91-98. [PMID: 28498087 DOI: 10.1080/13651501.2017.1285941] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVES 'Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal Infections' (PANDAS) identified a unique subgroup of patients with abrupt onset of obsessive compulsive disorder (OCD) symptoms clinically related to Streptococcus infection and accompanied by neuropsychological and motor symptoms. After almost 20 years, PANDAS has not been accepted as distinct disorder and new criteria for paediatric acute-onset neuropsychiatric syndrome (PANS) have been replaced it, highlighting the fact that several agents rather than only Streptococcus might be involved. METHODS Extensive review of the PANDAS/PANS literature was performed on PubMed. RESULTS Although antibiotics have been reported to be effective for acute and prophylactic phases in several uncontrolled studies and non-steroidal anti-inflammatory drugs (NSAID) are used during exacerbations, clinical multicenter trials are still missing. Selective serotonin reuptake inhibitors (SSRIs) and cognitive behavioural therapy (CBT) are still the first line of recommendation for acute onset OCD spectrum. Immunological therapies should be restricted to a few cases. CONCLUSIONS While PANDAS has found no confirmation as a distinct syndrome, and it is not presented in DSM-5, patients with acute onset OCD spectrum, neurocognitive and motor symptoms should be evaluated for inflammatory, infective, immunological and metabolic abnormalities with a comprehensive diagnostic algorithm.
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Affiliation(s)
| | - Silvia Spitoni
- a Department of Neurofarba , University of Florence , Florence , Italy
| | - Eric Hollander
- b Department of Psychiatry , Icahn School of Medicine , NY , USA.,c Department of Psychiatry and Behavioral Sciences , Albert Einstein College of Medicine , NY , USA
| | - Marco Matucci Cerinic
- d Department of Experimental and Clinical Medicine , University of Florence , Florence , Italy
| | - Stefano Pallanti
- a Department of Neurofarba , University of Florence , Florence , Italy.,e Institute of Neuroscience , Florence , Italy
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Windfuhr JP. Tonsillectomy remains a questionable option for pediatric autoimmune neuropsychiatric disorders associated with streptococcal infections (PANDAS). GMS CURRENT TOPICS IN OTORHINOLARYNGOLOGY, HEAD AND NECK SURGERY 2016; 15:Doc07. [PMID: 28025607 PMCID: PMC5169080 DOI: 10.3205/cto000134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Background: Pediatric autoimmune neuropsychiatric disorders associated with streptococcal infections (PANDAS) is a disease attributed to children with obsessive compulsive disorders (OCD) or tic disorders associated with streptococcal infections. Because otolaryngologists examine a large number of pediatric patients with recurrent streptococcal infections, tonsillectomy (TE) is a common option of therapy. This study was conducted to evaluate the efficacy of TE in patients presenting with verified PANDAS. Material and methods: A PubMed review was performed using search terms "tonsillectomy" and "PANDAS", "OCD", "compulsive" "pediatric autoimmune", "chorea" and "tic" limited by publication date of January 1, 1995, to July 31, 2015. Reviews without patients were not included in the review. Results: Nine papers matched our search criteria, including 6 case reports with 8 patients and 3 case series. Most case reports were in favor of TE, but this was by far not supported by the findings in the case series. The follow-up ranged from 2 to 36 months in case reports and from 24 to 36 in case series. Conclusion: Establishing the diagnosis of PANDAS is complicated because of underlying comorbidities in the field of neurology-psychiatry and the lack of a reliable biomarker. The positive outcome after TE as reported in case studies may be influenced by the postoperative medication and is not supported by the results of large-scale studies. In the light of the considerable postoperative morbidity rate, it appears wise to indicate TE for PANDAS only in supervised clinical studies.
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Affiliation(s)
- Jochen P Windfuhr
- Department of Otolaryngology, Head & Neck Surgery, Allergology, Kliniken Maria Hilf, Mönchengladbach, Germany
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16
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PANDAS: A systematic review of treatment options. Int J Pediatr Otorhinolaryngol 2016; 89:149-53. [PMID: 27619047 DOI: 10.1016/j.ijporl.2016.08.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 08/09/2016] [Accepted: 08/10/2016] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Pediatric Autoimmune Neuropsychiatric Disorder Associated with Streptococcus (PANDAS) is a rare but important condition for pediatric otolaryngologists to recognize. Several treatment options exist including tonsillectomy, antibiotic treatment/prophylaxis, intravenous immunoglobulin (IVIG), and psychiatric medications/therapy. METHODS A systematic review of the PubMed, EMBASE, and Scopus databases was performed searching for articles that focused exclusively on the aforementioned treatment modalities in the PANDAS population. Review articles, single patient case reports, and studies examining the natural history or diagnostic strategies were excluded. RESULTS Five articles regarding tonsillectomy treatments with level of evidence (LOE) 4 were found but no clear benefit could be determined. Three articles were selected involving the use of antibiotic therapy. One prospective study and one double-blind randomized control trial (DB RCT) supported the use of antibiotics but a separate DB RCT showed no benefit. Two selected articles described the use of IVIG: one unblinded RCT and one retrospective study. One prospective study on cognitive-behavioral therapy (CBT) showed benefit in PANDAS. CONCLUSION There is a paucity of high-level studies regarding this rare disorder and no hard treatment recommendations can be made. Tonsillectomy should only be performed in those who are surgical candidates based on current published guidelines. Antibiotics are an option but provide uncertain benefit. CBT remains a low-risk option. Studies support the use of IVIG, however more investigation is needed prior to widespread adoption of this treatment given its potential risks.
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Walls A, Dermody S, Kumaran R, Krishnan N, Harley EH. Characterization of B-Cells in tonsils of patients diagnosed with pediatric autoimmune neuropsychiatric disorder associated streptococcus. Int J Pediatr Otorhinolaryngol 2016; 80:49-52. [PMID: 26746612 DOI: 10.1016/j.ijporl.2015.11.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 11/14/2015] [Accepted: 11/18/2015] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To determine if Pediatric Autoimmune Neuropsychiatric Disorder Associated with Streptococcus (PANDAS) patients demonstrate a significantly different number of B-Cells or markers of activity when compared to recurrent Group A Streptococcus or Obstructive Sleep Apnea patients. STUDY DESIGN Prospective Cohort Study. STUDY SETTING Academic University Hospital. METHODS Tonsil tissue was collected from twenty-two patients in the operating room and organized into three groups. Ten clinically diagnosed PANDAS, six Group A Streptococcus and six Obstructive Sleep Apnea patients were included in this study. Each tissue sample was extracted with MSD Tris Lysis Buffer and protein lysates were analyzed for CD 19, B-Cell Activating Factor and B-Cell Activating Receptor by western blot methods. RESULTS Based on ANOVA analysis, there was no significant difference in the expression of B-Cell Activating Factor, B-Cell Activating Receptor or CD 19 when comparing the three study groups by western blot analysis methods. CONCLUSIONS In this prospective cohort study, it appears that PANDAS patients do not demonstrate increased number of B-Cells, expression of B-Cell Activating Factor or B-Cell Activating Receptor when compared to Group A Streptococcus or Obstructive Sleep Apnea cohorts. As a result, further evaluation of the cell-mediated immune system is warranted to provide further insight into the pathophysiology of PANDAS. In addition, we must investigate if PANDAS patients only demonstrate increased B-Cell number or activity when undergoing an acute Tic/OCD exacerbation.
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Affiliation(s)
- Andrew Walls
- Department of Otolaryngology-Head & Neck Surgery Georgetown University Hospital, Washington, DC 20007, United States; Georgetown University School of Medicine, Washington, DC 20007, United States.
| | - Sarah Dermody
- Department of Otolaryngology-Head & Neck Surgery Georgetown University Hospital, Washington, DC 20007, United States; Georgetown University School of Medicine, Washington, DC 20007, United States
| | - Ravindran Kumaran
- Department of Otolaryngology-Head & Neck Surgery Georgetown University Hospital, Washington, DC 20007, United States; National Institute of Aging, National Institutes of Health, Bethesda, MD 20892, United States
| | - Nathan Krishnan
- Department of Otolaryngology-Head & Neck Surgery Georgetown University Hospital, Washington, DC 20007, United States; Georgetown University School of Medicine, Washington, DC 20007, United States
| | - Earl H Harley
- Department of Otolaryngology-Head & Neck Surgery Georgetown University Hospital, Washington, DC 20007, United States; Georgetown University School of Medicine, Washington, DC 20007, United States
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Pavone P, Rapisarda V, Serra A, Nicita F, Spalice A, Parano E, Rizzo R, Maiolino L, Di Mauro P, Vitaliti G, Coco A, Falsaperla R, Trifiletti RR, Cocuzza S. Pediatric autoimmune neuropsychiatric disorder associated with group a streptococcal infection: the role of surgical treatment. Int J Immunopathol Pharmacol 2014; 27:371-8. [PMID: 25280028 DOI: 10.1177/039463201402700307] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcus (PANDAS) is a well-defined syndrome in which tics (motor and/or vocal) and/or obsessive compulsive disorders (OCD) consistently exacerbate in temporal correlation to a Group A beta-haemolytic streptococcal infection. In children with PANDAS, there is speculation about whether tonsillectomy or adenotonsillectomy might improve the neuropsychiatric course. Our objective was to examine whether such surgery impacted remission or, in patients without remission, modified clinical course of the disease, streptococcal antibody titers, neuronal antibodies or clinical severity of Obsessive-Compulsive Disorder (OCD) and/or tics. Study participants (n = 120) with positive PANDAS criteria were recruited, examined, and divided into surgical or non-surgery groups. The surgical group consisted of children with tonsillectomy or adenotonsillectomy (n=56). The remaining children were categorized as non-surgery (n=64). Clinical follow-up was made every 2 months for more than 2 years. Surgery did not affect symptomatology progression, streptococcal and neuronal antibodies, or the clinical severity of neuropsychiatric symptoms in these children. In conclusion, in our series clinical progression, antibody production, and neuropsychiatric symptom severity did not differ on the basis of surgical status. We cannot uphold surgical management as likely to impact positive remission rates, course of OCD/tics, or antibody concentrations in children with PANDAS.
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Affiliation(s)
- P Pavone
- U.O. of Pediatrics and Pediatrics Emergency, Azienda Ospedaliera Universitaria, Policlinico Vittorio Emanuele, Catania, Italy
| | - V Rapisarda
- Occupational Medicine, Vittorio Emanuele, Policlinico Hospital, University of Catania, Catania, Italy
| | - A Serra
- Department of Medical Surgical Specialties, ENT Clinic, University of Catania, Italy
| | - F Nicita
- Department of Pediatrics, Child Neurology Division, Policlinico Umberto I, Sapienza University, Rome, Italy
| | - A Spalice
- Department of Pediatrics, Child Neurology Division, Policlinico Umberto I, Sapienza University, Rome, Italy
| | - E Parano
- ISBN, The National Research Council of Italy, CNR, Catania, Italy
| | - R Rizzo
- Child Neuropsychiatric Division, Department of Pediatrics, AUO OVE, Policlinico, University of Catania , Catania, Italy
| | - L Maiolino
- Department of Medical Surgical Specialties, ENT Clinic, University of Catania, Italy
| | - P Di Mauro
- Department of Medical Surgical Specialties, ENT Clinic, University of Catania, Italy
| | - G Vitaliti
- U.O. of Pediatrics and Pediatrics Emergency, Azienda Ospedaliera Universitaria, Policlinico Vittorio Emanuele, Catania, Italy
| | - A Coco
- U.O. of Pediatrics and Pediatrics Emergency, Azienda Ospedaliera Universitaria, Policlinico Vittorio Emanuele, Catania, Italy
| | - R Falsaperla
- U.O. of Pediatrics and Pediatrics Emergency, Azienda Ospedaliera Universitaria, Policlinico Vittorio Emanuele, Catania, Italy
| | | | - S Cocuzza
- Department of Medical Surgical Specialties, ENT Clinic, University of Catania, Italy
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Abstract
Whether some instances of obsessive-compulsive disorder are secondary to infectious and/or autoimmune processes is still under scientific debate. The nosology has undergone an iterative process of criteria and acronyms from PITANDS to PANDAS to PANS (or CANS for neurology). This review focuses on the clinical presentation, assessment, proposed pathophysiology, and treatment of pediatric autoimmune neuropsychiatric disorders associated with streptococcus (PANDAS), and the newest iteration, pediatric acute-onset neuropsychiatric syndrome (PANS). Children who have these symptoms, which have become known as PANS, have been described by their parents as "changed children."
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Affiliation(s)
- Tanya K Murphy
- Rothman Center for Pediatric Neuropsychiatry, USF Pediatrics, 880 6th Street South, Suite 460, Box 7523, St Petersburg, FL 33701, USA.
| | - Diana M Gerardi
- Rothman Center for Pediatric Neuropsychiatry, USF Pediatrics, 880 6th Street South, Suite 460, Box 7523, St Petersburg, FL 33701, USA
| | - James F Leckman
- Child Study Center, Yale University School of Medicine, 230 S Frontage Road, New Haven, CT 06520, USA
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20
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Murphy TK, Gerardi DM, Parker-Athill EC. The PANDAS Controversy: Why (and How) Is It Still Unsettled? CURRENT DEVELOPMENTAL DISORDERS REPORTS 2014. [DOI: 10.1007/s40474-014-0025-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Macerollo A, Martino D. Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal Infections (PANDAS): An Evolving Concept. TREMOR AND OTHER HYPERKINETIC MOVEMENTS (NEW YORK, N.Y.) 2013; 3. [PMID: 24106651 PMCID: PMC3783973 DOI: 10.7916/d8zc81m1] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Accepted: 07/13/2013] [Indexed: 12/14/2022]
Abstract
Pediatric autoimmune neuropsychiatric disorders associated with streptococcus infections (PANDAS) originated from the observational work of Swedo and collaborators, who formalized their definition in 1998 in a set of operational criteria. The application of these criteria, which focuses on tics and obsessive-compulsive symptoms as core symptoms, has encountered difficulties, eventually leading to a high rate of misdiagnosis. In particular, the core feature represented by the association between newly diagnosed infections and neuropsychiatric symptom relapses in youths with this diagnosis could not be demonstrated by longitudinal studies. Exploratory studies aiming to identify clinical or cognitive features that could discriminate PANDAS from other pediatric obsessive-compulsive and tic disorders present methodological limitations, and therefore are not conclusive. Other behavioral features, in addition to obsessive-compulsive symptoms and tics, have been included in pediatric acute-onset neuropsychiatric syndromes (PANS) and childhood acute neuropsychiatric syndromes (CANS), two new concepts recently proposed in order to define a much broader clinical spectrum encompassing etiologically diverse entities. Given the uncertainties on the clinical definition of PANDAS, it is not surprising that evidence in support of a post-infectious, immune-mediated pathophysiology is also insufficient. Anti-dopamine receptor antibodies might be relevant to both Sydenham's chorea (SC)-the prototypical post-streptococcal neuropsychiatric disorder-and some rare forms of encephalitis targeting the basal ganglia specifically, but studies exploring their association with children fulfilling Swedo's criteria for PANDAS have been inconclusive. Moreover, we lack evidence in favor of the efficacy of antibiotic prophylaxis or tonsillectomy in patients fulfilling Swedo's criteria for PANDAS, whereas a response to immune-mediated treatments like intravenous immunoglobulins has been documented by one study, but needs replication in larger trials. Overall, the available evidence does not convincingly support the concept that PANDAS are a well-defined, isolated clinical entity subdued by definite pathophysiological mechanisms; larger, prospective studies are necessary to reshape the nosography and disease mechanisms of post-streptococcal acute neuropsychiatric disorders other than SC. Research is also under way to shed further light on a possible relationship between streptococcal infections, other biological and psychosocial stressors, and the complex pathobiology of chronic tic disorders.
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Affiliation(s)
- Antonella Macerollo
- Sobell Department of Motor Neuroscience and Movement Disorders, National Hospital of Neurology and Neurosurgery, Institute of Neurology, University College London, London, United Kingdom
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