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Nasal irrigation (NI) is an effective, safe, low-cost strategy for treating and preventing upper respiratory tract diseases. High-volume, low-pressure saline irrigations are the most efficient method for removing infectious agents, allergens, and inflammatory mediators. This article reviews clinical evidence supporting NI use in various conditions: nasal congestion in infants, recurrent respiratory infections, acute and chronic rhinosinusitis, allergic and gestational rhinitis, empty nose syndrome, and post-endoscopic sinus surgery care. NI improves symptoms, reduces recurrence, enhances the efficacy of topical drugs, and decreases the need for antibiotics and decongestants. During the COVID-19 pandemic, NI has also been explored as a complementary measure to reduce viral load. Due to the safe profile and mechanical cleansing action on inflammatory mucus, nasal irrigations represent a valuable adjunctive treatment across a wide range of sinonasal conditions.

: Atrial fibrillation is a rare disorder in the pediatric population in the absence of underlying heart disease. A specific arrhythmia, known as lone pediatric atrial fibrillation, can occur without identifiable structural heart abnormalities. We report a case of a 12-year-old obese child with symptomatic hypertension and atrial fibrillation diagnosed through an electrocardiogram (ECG). The patient was rapidly managed with intravenous metoprolol, and he subsequently started cardiologic treatment and clinical follow-up. This case underlines the possibility of performing routine ECGs in the follow-up of obese children.

Introduction: Pediatric Functional Gastrointestinal Disorders (FGIDs), including infantile colic and constipation, may persist into later childhood and adulthood, sometimes manifesting as functional abdominal pain (FAP). Early exposure to probiotics during critical developmental windows may influence long-term susceptibility to disease. Background/Objectives: Building on our original randomized controlled trial, which demonstrated that Lactobacillus reuteri DSM 17938 reduced acute infantile FGID symptoms, a 10-year follow-up study was performed to evaluate whether this early intervention provided lasting protection against FAP in childhood. Methods: Two hundred participants from the original RCT cohort completed follow-up assessments at age ten. The primary outcome was the presence of FAP, analyzed according to the original randomization group (probiotic vs placebo). FAP was diagnosed at age 10 using the Rome IV criteria, based on a standardized clinical assessment by a pediatric gastroenterologist who was blinded to the original allocation. Results: FAP was diagnosed in 13/99 (13.1%) children in the probiotic group and 81/101 (80.2%) in the placebo group, corresponding to an absolute risk reduction of 67.1% (95% CI 56.8–77.3) and a relative risk of 0.16 (95% CI 0.10–0.27) (p < 0.001). Conclusions: Early supplementation with L. reuteri DSM 17938 was associated with a markedly lower prevalence of FAP at age 10. However, the long-term follow-up was observational and characterized by a 57.2% attrition rate. In addition, longitudinal data on potential confounders were unavailable; therefore, the findings should be interpreted as an association rather than proof of causality.

Pediatric nephrolithiasis is an ancient and complex disorder that has seen a significant rise in recent decades and the underlying causes contributing to stone formation in children may also be shifting. Historically, kidney stones have been linked to factors such as metabolic disorders, congenital abnormalities, and family history. However, the recent increase in incidence appears to be associated with new risk factors, including changes in lifestyle and diet, the growing prevalence of obesity, metabolic syndrome, diabetes, and even climate change. Given this evolving landscape, performing a comprehensive metabolic evaluation during the diagnostic process is essential. A complete metabolic evaluation should thus be performed during the diagnostic assessment to identify any modifiable risk factors predisposing to stone recurrence and reduce the need for surgical management, extrarenal comorbidity, and the increased burden of care.

Alternaria alternata is one of the most clinically relevant fungal allergens in pediatric patients with respiratory allergies. Sensitization to this mold has increased in recent decades and is influenced by environmental exposure, geographic location, climate change, and genetic predisposition. In children, Alternaria spp. are strongly associated with the development and worsening of asthma and allergic rhinitis, often contributing to severe and difficult-to-control forms of the disease. The major allergen, Alt a 1, plays a central role in the immunopathogenesis of Alternaria-induced allergies and exhibits molecular features that allow cross-reactivity with other fungal species. Although Alternaria allergy is clinically relevant, its diagnosis remains challenging due to the variability and lack of standardization of fungal extracts. Therefore, it may be necessary to complement traditional diagnostic tools, such as skin prick testing and specific IgE measurement, with component-resolved diagnostics or, in selected cases, nasal provocation tests. Allergen immunotherapy (AIT) has shown promising results in the treatment of Alternaria allergy, particularly with the use of standardized Alt a 1-based extracts or chemically modified allergoids, which offer clinical benefits and immunological modulation. However, AIT is still underused in this context, partly because of the lack of widely available commercial products and long-term efficacy data in the pediatric population. This review provides a comprehensive overview of the current knowledge on the epidemiology, mechanisms, clinical implications, and treatment options related to Alternaria allergy in children, with the aim of supporting early recognition and tailored therapeutic strategies for this important, yet often underestimated, allergen.

Anaphylaxis is a life-threatening reaction characterized by the acute onset of symptoms involving different organ systems and requiring immediate medical intervention. The incidence of fatal food anaphylaxis is 0.03 to 0.3 million/people/year. Most fatal food-induced anaphylaxis occurs in the second and third decades of life. The identified risk factors include the delayed use of epinephrine, the presence of asthma, the use of recreational drugs (alcohol, nicotine, cannabis, etc.), and an upright position. In the United Kingdom (UK) and Canada, the reported leading causal foods are peanuts and tree nuts. In Italy, milk seems to be the most common cause of fatal anaphylaxis in children < 18 years. Fatal food anaphylaxis in Italian children and adolescents almost always occurs outside and is characterized by cardiorespiratory arrest; auto-injectable adrenaline intramuscular was available in few cases. Mortality from food anaphylaxis, especially in children, is a very rare event with stable incidence, but its risk deeply impacts the quality of life of patients with food allergy and their families. Prevention of fatal food anaphylaxis must involve patients and their families, as well as the general public, public authorities, and patients’ associations.

Over several decades, childhood asthma has emerged as a significant global public health concern, with the highest prevalence reported in industrialized countries. The rapid rise in asthma incidence and loss of control when the diagnosis is established can be related to environmental and lifestyle changes, especially during early infancy. Current evidence indicates a potential link to an imbalance in immune system responses, influenced by tobacco smoke, traffic-related air pollution, outdoor and indoor allergens, gut microbiome, viral infection, obesity, sedentary lifestyle and dietary patterns. This narrative review aims to explore the landscape of contemporary environmental risk factors for childhood asthma, with a focus on their interplay and the relative importance.

Long Coronavirus disease-19 (COVID-19) refers to the persistence of symptoms related to the infection with severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2). This condition is described as persistent and can manifest in various combinations of signs and symptoms, such as fatigue, headache, dyspnea, depression, cognitive impairment, and altered perception of smells and tastes. Long COVID-19 may be due to long-term damage to different organs—such as lung, brain, kidney, and heart—caused by persisting viral-induced inflammation, immune dysregulation, autoimmunity, diffuse endothelial damage, and micro thrombosis. In this review, we discuss the potential and biologically plausible role of some vitamins, essential elements, and functional foods based on the hypothesis that an individual’s dietary status may play an important adjunctive role in protective immunity against COVID-19 and possibly against its long-term consequences.

Eosinophilic esophagitis (EoE) is a chronic clinical-pathologic disease characterized by eosinophilic infiltration of the esophageal epithelium with esophageal dysfunction symptoms. EoE can occur at any age and has different clinical manifestations depending on the age onset. To date, esophago-gastroduodenal endoscopy (EGD) with biopsy is the gold-standard for EoE diagnosis. According to the recent consensus guidelines, proton pump inhibitors, corticosteroids and elimination diets could be a first-line therapy option. The aim of the treatment is clinical and histological remission for preventing long-lasting untreatable fibrosis. A multidisciplinary approach (allergist, gastroenterology, dietitian, and pathologist) is recommended for managing patients affected by EoE, given the complexity of its treatment. This review will provide a practical guide to assist pediatricians treating children with EoE. Moreover, it highlights the unmet needs in diagnosis and treatment that require urgent attention from the scientific community in the aim of improving the management of patients with EoE.

IntroductionOverweight or obese children develop abnormal endothelial cell dysfunction and arterial intima–media thickening with increased vasomotor tone and inflammation. Curcumin, resveratrol, zinc, magnesium, selenium, and vitamin D have shown beneficial effects on endothelial function. We test, among overweight and obese pediatric subjects, the effects on the endothelium of a combination of curcumin, resveratrol, zinc, magnesium, selenium, and vitamin D.MethodsForty-eight subjects (6–17 years) were randomized into two groups (placebo vs treatment) attended three visits at 0, 3, and 6 months (±15 days). Endothelial function was assessed by means of a post-occlusive release hyperemic (PORH) test for estimation of delta flow (DF) and hyperemic AUC index, and a heat provocation test (HPT) to measure DF HPT (DFHPT).ResultsSignificant DF difference was noted at 6 months in both groups (p < 0.001). Overall time trend was significantly different between baseline, 3 months, and 6 months both in placebo (p < 0.05) and treatment (p < 0.001) groups and their comparison (p < 0.001). No differences were noted in hyperemic AUC index (3 and 6 months), whilst there were significant differences in time trends of rreatment (p < 0.001) and placebo (p < 0.05) groups and their comparison (p < 0.001). DFHPT difference between groups was significant at 3 and 6 months (p < 0.05). The overall time trend was significant exclusively in Treatment group between 3 and 6 months (p < 0.05). Correlation with anthropometrics was found for DF and body mass index (r = 0.677 6 months, p < 0.05), as well as for hyperemic AUC index and males (r = 0.348, p < 0.05), while DFHPT showed no correlation.ConclusionCurcumin, resveratrol, zinc, magnesium, selenium, and vitamin D appear to be promising in enhancing endothelial function by improvement of both DF in the PORH test and DF in the HPT, lowering the risk of developing cardiovascular diseases in overweight and obese pediatric subjects.