Refeeding syndrome (RS) is characterized by electrolyte imbalances that can occur in malnourished and abruptly refed patients. Typical features of RS are hypophosphatemia, hypokalemia, hypomagnesemia, and thiamine deficiency. It is a potentially life‐threatening condition that can affect both adults and children, although there is scarce evidence in the pediatric literature. The sudden increase in food intake causes a shift in the body's metabolism and electrolyte balance, leading to symptoms such as weakness, seizures, and even heart failure. A proper management with progressive increase in nutrients is essential to prevent the onset of this condition and ensure the best possible outcomes. Moreover, an estimated incidence of up to 7.4% has been observed in pediatric intensive care unit patients receiving nutritional support, alone or as an adjunct. To prevent RS, it is important to carefully monitor feeding resumption, particularly in severely malnourished individuals. A proper strategy should start with small amounts of low‐calorie fluids and gradually increasing the calorie content and amount of food over several days. Close monitoring of electrolyte levels is critical and prophylactic use of dietary supplements such as thiamine may be required to correct any imbalances that may occur. In this narrative review, we aim to provide a comprehensive understanding of RS in pediatric clinical practice and provide a possible management algorithm.

Background/Objectives: In Italy, the prevalence of celiac disease (CeD) among children exceeds 1.5% and has steadily increased with a linear trend over the past 25 years. The clinical presentation is heterogenous and a change in onset symptoms has been described in recent years. The aim of the study is to describe the pattern of clinical presentation of CeD during the last 12 years in a single Italian center. Methods: We retrospectively enrolled all children diagnosed with CeD at Bambino Gesù Children Hospital, Rome between 1 March 2011 and 22 June 2023. To investigate the changes in pattern of clinical presentation, we divided the patient population into three groups of approximately 4 years each (respectively: 49, 48 and 48 months). Patients who previously received a CeD diagnosis in other centers were excluded. Results: Overall, 4478 patients were diagnosed with CeD at our center. 1082 were excluded, leaving 3396 available for analysis. We divided the study cohort into three groups: group 1 (n = 909), group 2 (n = 1103), and group 3 (n = 1384). Diagnoses of CeD increased by 17.5%. The trend of the non-classic form shows a significative increase (p = 0.000064), showing a high prevalence of bloating and abdominal pain and a significant reduction in celiac crisis (p < 0.0001). Conclusions: Annual diagnoses of CeD increased during the study period, and the clinical presentation has changed in recent years, showing an increase in the non-classic form and a reduction in more severe forms of celiac crisis.

Background/Objectives: The efficacy of exclusive enteral nutrition (EEN) on the induction of remission of Crohn’s disease (CD) has been demonstrated with different diets (elemental, semi-elemental, and polymeric). A narrative review was conducted to assess the effects of different enteral diets in pediatric CD patients, considering the hypothesis that manipulating the nutritional key ingredients may enhance the clinical efficacy. Methods: An extensive literature search was performed across PubMed, Embase, and the Cochrane Library, covering all records published up to 27 July 2025. Both pediatric and adult studies were considered, and nutritional composition was compared with remission rates. Results: Twelve studies involving patients with active CD treated with EEN were found. Most studies were conducted with polymeric diets (n = 8), which achieved a high remission rate (up to 85%), thus confirming their advantage over other EEN diets. Conclusions: EEN with polymeric diets satisfies the need to revert the acute inflammation in most pediatric CD patients. Polymeric formulas have two advantages: (a) they contain transforming growth factor-β (TGF-β), which exerts anti-inflammatory effects on intestinal epithelial cells, and (b) they have a mixed-fat composition, including saturated fatty acids (SFAs), monounsaturated fatty acids (MUFAs), polyunsaturated fatty acids (PUFAs) as well medium-chain triglycerides (MCTs), which provides better results than EEN diets enriched with single-fat components. However, pathophysiological evidence shows gut microbiota alterations after EEN begins, despite clinical improvement. So, a potential strategy to enhance the efficacy of polymeric diets may be fiber enrichment.

Background: Pediatric Short bowel syndrome (SBS) is the leading cause of intestinal failure and is characterized by persistent dysbiosis that negatively impacts intestinal adaptation and growth. Although microbiota modulation via pre-, pro-, and synbiotics represents a promising strategy, current evidence remains fragmented. This narrative review aims to critically assess the efficacy and safety of such interventions in the management of pediatric SBS. Methods: A structured literature search was conducted on PubMed up to November 2025. Fourteen relevant studies were included, comprising clinical trials, preclinical animal models, and significant case reports regarding the use of biotics in SBS. Results: The analysis reveals a microbiological dichotomy based on nutritional status: parenteral nutrition (PN)-dependent patients exhibit an excess of Proteobacteria associated with infectious risk, whereas weaned patients present a metabolic risk of D-lactic acidosis due to carbohydrate fermentation. Regarding efficacy, long-term synbiotic treatments (>12 months) demonstrated significant improvements in growth and nutritional status, likely mediated by increased production of short-chain fatty acids (SCFAs) and mucosal adaptation, unlike short-term probiotic cycles. However, serious adverse events (Lactobacillus sepsis and D-lactic acidosis) were reported, predominantly in patients with central venous catheters or malabsorption. Conclusions: Biotics offer therapeutic potential for intestinal failure, but their use cannot be empirical. The safety profile should be carefully selected, especially in central venous catheter (CVC) carriers. Future strategies must evolve towards precision medicine, prioritizing non-D-lactate-producing strains and personalized protocols based on the patient’s nutritional phase.

Background: Growth impairment is a major component of pediatric inflammatory bowel disease (IBD), yet the prognostic role of baseline nutritional status remains debated. We assessed the impact of nutritional status at diagnosis on subsequent medical and surgical disease course. Methods: We retrospectively studied 183 children with IBD (84 Crohn’s disease, 99 ulcerative colitis) followed for at least 18 months. Patients were classified at diagnosis using BMI Z-scores as underweight (n = 35), normal weight (n = 123), or overweight/obese (n = 25). Multivariable regression models—adjusted for diagnosis, biological sex, age at diagnosis, and extraintestinal manifestations/comorbidities—evaluated relapse burden, surgical resection, and longitudinal anthropometric recovery at last follow-up. Results: Baseline underweight status was not independently associated with a higher relapse burden or time to first relapse. A sensitivity analysis excluding surgically resected patients showed higher estimated relapse rates for underweight patients, though these did not reach statistical significance. In exploratory analyses, baseline underweight showed a borderline, non-significant association with subsequent surgical resection (adjusted OR 2.68, 95% CI 0.97–7.27; p = 0.056), warranting validation in larger prospective cohorts. Exploratory VEO-IBD analyses were limited by small subgroup size; within UC, a higher crude resection frequency was observed in VEO-UC than in older-onset UC (15.0% vs. 1.3%), but this finding should be interpreted cautiously. At follow-up, 85.7% of initially underweight patients reached normal weight. Higher baseline BMI Z-score was independently associated with higher follow-up BMI Z-score, whereas therapeutic escalation and total relapse burden were not independently associated with follow-up BMI Z-score. Persistent stunting was very rare (1.9%), precluding multivariable analysis. Conclusions: Baseline underweight showed a suggestive but non-significant association with subsequent surgical resection, warranting confirmation in larger prospective cohorts, while it was not independently associated with medical disease instability. Substantial weight recovery occurred during pediatric IBD follow-up. Baseline BMI Z-score was associated with BMI Z-score at follow-up, although substantial between-patient variability remained unexplained.