Publications by authors named "Priyen Shah"

Background: Multisystem inflammatory syndrome in children (MIS-C) is a rare but serious hyperinflammatory complication following infection with severe acute respiratory syndrome coronavirus 2. The mechanisms underpinning the pathophysiology of MIS-C are poorly understood. Moreover, clinically distinguishing MIS-C from other childhood infectious and inflammatory conditions, such as Kawasaki disease or severe bacterial and viral infections, is challenging due to overlapping clinical and laboratory features.

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Article Synopsis
  • Antibiotic overprescription in pediatric emergency departments (EDs) contributes to antimicrobial resistance, prompting a study on empiric antibiotic use in European EDs for febrile children.
  • Out of 2130 febrile cases studied, 72.7% were classified as bacterial and 27.3% as viral, with 85.1% of bacterial and 46.3% of viral cases receiving empiric systemic antibiotics within the first two days.
  • A large portion of patients with viral infections were still given antibiotics, typically from the WHO's "Watch" category, highlighting the need for better diagnostic methods in EDs to accurately distinguish between bacterial and viral infections.
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Background: The PERFORM study aimed to understand causes of febrile childhood illness by comparing molecular pathogen detection with current clinical practice.

Methods: Febrile children and controls were recruited on presentation to hospital in 9 European countries 2016-2020. Each child was assigned a standardized diagnostic category based on retrospective review of local clinical and microbiological data.

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Background: To identify a diagnostic blood transcriptomic signature that distinguishes multisystem inflammatory syndrome in children (MIS-C) from Kawasaki disease (KD), bacterial infections, and viral infections.

Methods: Children presenting with MIS-C to participating hospitals in the United Kingdom and the European Union between April 2020 and April 2021 were prospectively recruited. Whole-blood RNA Sequencing was performed, contrasting the transcriptomes of children with MIS-C (n = 38) to those from children with KD (n = 136), definite bacterial (DB; n = 188) and viral infections (DV; n = 138).

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Article Synopsis
  • Over 1,000 unexplained pediatric hepatitis cases have been identified globally, with a study focusing on 38 cases and various control groups to understand potential viral causes.
  • High levels of adeno-associated virus 2 (AAV2) DNA were found in most cases, while low levels of adenovirus and human herpesvirus 6B were also detected; however, AAV2 appeared infrequently in healthy controls even when they were immunocompromised.
  • The study suggests that abnormal replication of AAV2, potentially influenced by other viruses like HAdV and HHV-6B, may be responsible for immune-related liver disease in susceptible children.
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Background: Multisystem inflammatory syndrome in children (MIS-C), a hyperinflammatory condition associated with SARS-CoV-2 infection, has emerged as a serious illness in children worldwide. Immunoglobulin or glucocorticoids, or both, are currently recommended treatments.

Methods: The Best Available Treatment Study evaluated immunomodulatory treatments for MIS-C in an international observational cohort.

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Background: Evidence is urgently needed to support treatment decisions for children with multisystem inflammatory syndrome (MIS-C) associated with severe acute respiratory syndrome coronavirus 2.

Methods: We performed an international observational cohort study of clinical and outcome data regarding suspected MIS-C that had been uploaded by physicians onto a Web-based database. We used inverse-probability weighting and generalized linear models to evaluate intravenous immune globulin (IVIG) as a reference, as compared with IVIG plus glucocorticoids and glucocorticoids alone.

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Importance: In communities with high rates of coronavirus disease 2019, reports have emerged of children with an unusual syndrome of fever and inflammation.

Objectives: To describe the clinical and laboratory characteristics of hospitalized children who met criteria for the pediatric inflammatory multisystem syndrome temporally associated with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) (PIMS-TS) and compare these characteristics with other pediatric inflammatory disorders.

Design, Setting, And Participants: Case series of 58 children from 8 hospitals in England admitted between March 23 and May 16, 2020, with persistent fever and laboratory evidence of inflammation meeting published definitions for PIMS-TS.

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