Additional supporting information may be found online in the Supporting Information section. Allergy and asthma in children and adolescents during the COVID outbreak: What we know and how we could prevent allergy and asthma flaresTo the Editor, The coronavirus disease 2019 (COVID-19) pandemic is affecting people at any age with a more severe course in patients with chronic diseases or comorbidities, men, and elderly patients. The Centers for Disease Control and Prevention (CDC) initially proposed that patients with chronic lung diseases, including moderate-severe asthma, and allergy may have a higher risk of developing severe COVID-19 than otherwise healthy people ( https://www.cdc.gov/coron aviru s/2019-ncov/speci fic-group s/asthma.html ).Very few reports on pediatric patients with COVID-19 have been presented still now. Dong reported a nationwide case series of 2143 pediatric patients with COVID-19. 1 Children at all ages appeared susceptible to COVID-19, and without gender difference, symptoms were less severe than in adults, even though younger children, mainly infants, were vulnerable to infection. It has been, further, reported that infants and children usually developed mild respiratory symptoms, or they were likely asymptomatic. 2 After that, a study conducted in 140 hospitalized COVID-19 adult patients reported that no patient had asthma or allergy. 3 Another study, concerning 11 COVID-19 patients, reported two children with allergy, but no patient developed distinct symptoms and severe courses. 4 These last

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Early tubular alterations were studied in 53 children with insulin-dependent diabetes mellitus (IDDM), 32 of whom were followed at regular 6-monthly intervals for 3 years. The urinary levels of retinol-binding protein (RBP), beta 2-microglobulin and brush border antigens (BBA) (determined by monoclonal enzyme immunoassay) were taken as indices of functional and cellular tubular alterations; urinary albumin was considered an early marker of glomerular alterations. All indices of tubular alterations were higher in IDDM children than in 368 normal children, while albuminuria was unchanged. Urinary levels of BBA, however, varied widely during follow-up, with 25 of the 32 IDDM patients who were followed at regular intervals having pathological values for BBA on at least one occasion, followed by normalization. Metabolic alteration was found to be the main cause of this variability, since a high statistical correlation was found between urinary BBA and fructosamine (P < 0.001) and between RBP and the stable fraction of glycosylated haemoglobin (P < 0.001). The data confirm that transient tubular proteinuria occurs in diabetic children before any other marker of renal involvement such as microalbuminuria. The maintenance of good metabolic control is essential to normalize this early abnormality that can be considered a reversible sign of functional renal involvement.

The aim of this study was to describe the rate and types of community-acquired respiratory infections observed in a pediatric ED during the SARS-CoV-2 related lockdown in Italy and to compare data with the same period of previous year. Methods: A retrospective analysis of medical charts of patients arrived at the ED of Gaslini Children's Hospital from 10th March 2020 to 30th April 2019 and the same frame of 2020 were performed. We compared two groups by demographics, duration of fever before ED admission, triage code, number of patients hospitalized after ED evaluation. We calculated proportion and incidence rate for airborne infections, fever, and urinary tract infections (UTI), appendicitis, and gastroenteritis for control. Results: 1362 children arrived at the ED during the lockdown compared to 5628 in the same period of 2019 (−75,8%). No difference was noticed (27.7% vs 28.4%) in the total amount of infectious episodes. A significant reduction in rate of incidence and proportion were observed for upper respiratory tract infections (21,4% vs 28%), otitis (2,6% vs 16,2%), streptococcal infections (0,5% vs 5,2%) and bronchiolitis (2,1% vs 5,7%). Conversely, FUO (27,8 vs 11,1%), infectious mononucleosis (2,6% vs 0,4%), UTI (7,4% vs 2,9%) and appendicitis (6,8% vs 1,1%) significantly increased. Median time from the onset of fever and arrival in ED was significantly lower in 2020 group. Conclusion:Our results demonstrated a reduction in community-acquired respiratory infections during the lockdown for COVID-19. The increase in rate of FUO and febrile conditions, together with the short time from fever onset and ED visit could be related to the fear for a SARS-CoV-2 infection.

Background Benign acute childhood myositis (BACM) is a self-limited syndrome associated with viral infections characterized by symmetric lower extremity pain typically affecting school-aged children. Evolution in rhabdomyolysis and kidney damage is rarely reported. Despite this, the acute presentation commonly concerns both parents and health care providers, often leading to unnecessary workup. The aim of the study was to determine the features and outcome of a large series of children with BACM identifying a management pathway for pediatricians in Emergency Department (ED). Methods We conducted a retrospective study of patients with BACM managed in 2 Italian pediatric ED during a period of 8 and a half years. Demographic data, clinical, and laboratory results were extracted from electronic medical records. Recurrence, complications, treatments, and outcomes were also recorded. Descriptive statistics were produced for first-episode patients and for those with recurrence of myositis. A comparison between groups was performed. Results One hundred and thirteen patients with BACM were identified. Ninety-two children (65 males) had a single episode, while ten (nine males) had recurrence. The mean age at presentation was 6.0 years (range 2–13,2). All patients had normal neurological examination and no one developed myoglobinuria, or renal failure. At first evaluation median CK level was 1413 UI/l (normal values < 150 U/L). Median CK of “recurrent” patients was higher than “non-recurrent” (2330 vs 1150 U/L, p = 0.009). Viral studies were positive in 51/74 cases, with high prevalence of Influenza viruses. Ninety-six patients (85%) were hospitalized with a median of 4 days. No patients had any residual muscular impairment. Conclusions BACM has an excellent prognosis. Severe pathological conditions can be excluded with a complete history and clinical examination and simple blood and urine tests, avoiding unnecessary diagnostic investigations. Most patients may be discharged home from ED recommending hydration, rest, analgesics and careful follow-up.

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Background Quarantine and isolation measures during COVID-19 pandemic may have caused additional stress and challenged the mental health of the youth. Aim of the study is to investigate the COVID-19 pandemic impact on neuropsychological disorders (NPD) of Italian children and adolescents to provide general pediatric recommendations. Material and methods A retrospective multicenter observational study was planned by the Italian Pediatric Society (SIP) to explore the impact of COVID-19 on the access of children to pediatric Emergency Departments (pED) for the evaluation of neuropsychological symptoms, collecting the classification codes of diagnoses between March 1, 2019 and March 2, 2021. The period study was split into two sub-periods: a pre COVID-19 period (from March 1 2019 to March 1, 2020) and a COVID-19 period (from March 2, 2020 to March 2, 2021). As additional information, data on NPD hospitalizations in any pediatric department of the involved centers were recorded. Results During the study period, a total of 533,318 children were admitted to the pED involved in the study. Despite a 48.2% decline of pED admissions, there was a significant increase (83.1%) in patient admissions for NPD. The most frequent NPD conditions which increased during the COVID-19 pandemic were suicidal ideation (+ 147%), depression (+ 115%), eating disorder (+ 78.4%), and psychosis (+ 17.2%). During the pandemic period, a 39.5% increase in NPD hospitalizations was observed as well. The NPD disorders that mostly required hospitalizations were suicidal ideation (+ 134%), depression (+ 41.4%), eating disorder (+ 31.4%), and drug abuse (+ 26.7%). COVID-19 pandemic had a major impact on children's health, mainly on their NPD development. Neuropsychological assessment should be required at the primary level, in the pediatrician's office, to facilitate early capture of the sign of impairment and provide an adequate treatment. Conclusion SIP underlines the psychological consequences of COVID 19 pandemic on the youngest and recommends an early identification of NPD in the pediatric population to avoid other serious consequences for children's physical and mental health.