Anaphyl-Crisis: Rising Rates of Pediatric Anaphylaxis.

OBJECTIVES: Anaphylaxis is a serious allergic reaction that has the potential to be life-threatening if not recognized and managed rapidly. Several regional studies have shown increased incidence of anaphylaxis over the past decade. The objectives of this study were to determine rates of pediatric anaphylaxis in southeast Michigan between January 1, 2010, and December 31, 2019, and to describe the epidemiology of pediatric patients presenting to emergency centers in southeast Michigan with anaphylaxis. METHODS: We performed a retrospective chart review of all pediatric patients aged 0 to 17 years presenting to 2 large emergency centers from 2010 to 2019 with a diagnosis of anaphylaxis using International Classification of Diseases , Ninth and Tenth Revision , Clinical Modification codes. Epidemiological and visit data, including length of stay, use of intravenous medication, and emergency severity index, were extracted and analyzed. Pediatric anaphylaxis rates were calculated based on detected anaphylaxis cases divided by total pediatric emergency department visits to the 2 emergency centers. A Poisson regression model was used to predict rates of anaphylaxis per 100,000 emergency department visits. RESULTS: One thousand three hundred ninety-one pediatric visits for anaphylaxis were identified during a period between January 1, 2010, and December 31, 2019. There was a significant rate of increase in pediatric anaphylaxis cases over the 10-year study period at both suburban emergency centers, with an annual increase of 21% and 13%. There was no significant change in trends in demographic factors. Most anaphylaxis cases were young, White males with private insurance. Most children did not receive intravenous medications (77%). The median length of stay increased by 1.5 hours over the study period and 92% of patients were discharged home. CONCLUSIONS: Pediatric emergency center visits and length of stay for anaphylaxis in southeast Michigan have markedly increased over the past 10 years.

Fatal central nervous system co-infection with SARS-CoV-2 and tuberculosis in a healthy child.

BACKGROUND: Central and peripheral nervous system symptoms and complications are being increasingly recognized among individuals with pandemic SARS-CoV-2 infections, but actual detection of the virus or its RNA in the central nervous system has rarely been sought or demonstrated. Severe or fatal illnesses are attributed to SARS-CoV-2, generally without attempting to evaluate for alternative causes or co-pathogens. CASE PRESENTATION: A five-year-old girl with fever and headache was diagnosed with acute SARS-CoV-2-associated meningoencephalitis based on the detection of its RNA on a nasopharyngeal swab, cerebrospinal fluid analysis, and magnetic resonance imaging findings. Serial serologic tests for SARS-CoV-2 IgG and IgA showed seroconversion, consistent with an acute infection. Mental status and brain imaging findings gradually worsened despite antiviral therapy and intravenous dexamethasone. Decompressive suboccipital craniectomy for brain herniation with cerebellar biopsy on day 30 of illness, shortly before death, revealed SARS-CoV-2 RNA in cerebellar tissue using the Centers for Disease Control and Prevention 2019-nCoV Real-Time Reverse Transcriptase-PCR Diagnostic Panel. On histopathology, necrotizing granulomas with numerous acid-fast bacilli were visualized, and Mycobacterium tuberculosis complex DNA was detected by PCR. Ventricular cerebrospinal fluid that day was negative for mycobacterial DNA. Tracheal aspirate samples for mycobacterial DNA and culture from days 22 and 27 of illness were negative by PCR but grew Mycobacterium tuberculosis after 8 weeks, long after the child's passing. She had no known exposures to tuberculosis and no chest radiographic findings to suggest it. All 6 family members had normal chest radiographs and negative interferon-γ release assay results. The source of her tuberculous infection was not identified, and further investigations by the local health department were not possible because of the State of Michigan-mandated lockdown for control of SARS-CoV-2 spread. CONCLUSION: The detection of SARS-CoV-2 RNA in cerebellar tissue and the demonstration of seroconversion in IgG and IgA assays was consistent with acute SARS-CoV-2 infection of the central nervous infection. However, the cause of death was brain herniation from her rapidly progressive central nervous system tuberculosis. SARS-CoV-2 may mask or worsen occult tuberculous infection with severe or fatal consequences.

The opinions and experiences of Irish obstetric and gynaecology trainee doctors in relation to abortion services in Ireland.

INTRODUCTION: The provision of abortion services in the Republic of Ireland is legally restricted. Recent legislation that has been implemented allows for abortion if there is a real and substantial risk to the woman's life, but in general Irish women must travel abroad for abortion services. The aims of this study were to investigate the clinical experiences of Irish obstetric non-consultant hospital doctors (NCHDs) that work in this environment and to assess their attitudes towards termination of pregnancy (ToP). METHODS: We conducted an online cross-sectional descriptive survey of 184 Irish obstetric NCHDs. Quantitate and qualitative analysis was performed. RESULTS: There was a 28% response rate. 88% of respondents thought that ToP should be permitted for fatal fetal abnormality if the parents choose, 96% if the woman's health is severely affected and 86% in cases of rape and incest. Over 90% of respondents believed a woman's health suffers because of the need to travel abroad to undergo a ToP. Physical, psychological and social reasons were explored. The research also highlights that obstetric trainees are actively involved in the provision of preabortion and postabortion care. CONCLUSIONS: The clinical experiences and opinions of the respondents suggest that the current legal availability of abortion in Ireland is insufficient to guide best clinical practice and does not represent the views of those that provide obstetric care.

Coronavirus-19 Multisystem Inflammatory Syndrome in Children (MIS-C): A Pediatric Simulation Case for Residents, Fellows, and Advanced Practice Providers.

Introduction: A rare but serious condition often requiring intensive care, multisystem inflammatory syndrome in children (MIS-C) is characterized by hyperinflammatory shock related to the SARS-CoV-2 pandemic. This resource teaches residents, pediatric emergency medicine fellows, and advanced practice providers who care for children to recognize and manage MIS-C and associated sequelae while applying the basic principles of pediatric resuscitation. Methods: The simulation case was based on a real patient who presented to the emergency department with fever, rash, and cardiogenic shock. We designed the scenario to be used with a high-fidelity school-age mannequin in an emergency center resuscitation room or simulation lab. The case took 25 minutes to run, followed by a 15- to 20-minute debrief session. Personnel required for the case included a simulation technician, case instructor, emergency department nurse, parent, and consultant. Learners had to recognize the syndrome and treat the resultant shock and arrhythmia with a combination of vasopressors, antiarrhythmics, and defibrillation. Afterward, learners participated in a formal debriefing session and completed a written evaluation. Results: Twenty-five learners (six pediatric emergency medicine fellows, 12 residents, and seven advanced practice providers) participated in the scenario over a 3-month period. The written evaluation was completed by 20 of the 25 participants; all 20 felt their confidence, comfort, and knowledge regarding the topic had increased, with an average score of 5 (strongly agree) on a 5-point Likert scale. Discussion: This simulation case offers an effective experience for learners to become comfortable and confident in recognizing and managing MIS-C.

Immunization with hybrid recombinant Mycobacterium tuberculosis H37Rv proteins increases the TH1 cytokine response in mice following a pulmonary instillation of irradiated mycobacteria.

The aim of this research was to identify subunit immunogens that can generate enhanced CD8 T cell and TH1 responses against Mycobacterium tuberculosis. A genomic comparison of the M. tuberculosis H(37)R(V) and M. bovis BCG identified 61 proteins that are unique to H(37)R(V). Further screening of these 61 proteins using in silico analyses mimicking proteasomal digestion, transporter-associated antigen processing and H-2 antigen presentation identified 13 proteins with high densities of predicted MHC class I epitopes. Two native proteins, Rv1986c and Rv3875, were selected on the basis of their secreted or transmembrane characteristics and relatively lower frequencies of predicted MHC class II epitopes. To further enhance the CD8 T cell and TH1 responses, a hybrid protein, H32, was constructed by combining the nucleotide sequences encoding the MHC class I antigen-rich segment of Rv1986c and the entire Rv3875 sequence. The two native proteins and the hybrid were used to immunize C57BL/6 and Balb/c mice, which was followed by pulmonary instillation with irradiated M. tuberculosis H(37)R(V). All three proteins elicited elevated IFN-gamma responses, with the hybrid showing significant increases over the native proteins in both mice. This strategy of immunogen selection might be used to improve the current subunit vaccines against M. tuberculosis as well as other intra-cellular pathogens.