Background: Data on the impacts of vitamin D deficiency on sarcopenia in pediatric patients with inflammatory bowel disease (IBD), including Crohn’s disease (CD) and ulcerative colitis (UC), are lacking. We aimed to investigate the relationships between vitamin D levels and sarcopenia in patients with newly diagnosed IBD. Methods: A cross-sectional, retrospective study was conducted in a tertiary care children’s hospital. Pediatric IBD patients who underwent magnetic resonance (MR) enteroclysis at the time of initial diagnosis were included. Total psoas muscle area (tPMA) at the L4/L5 intervertebral level was demonstrated on MR by scanning the right and left psoas muscle areas. Sarcopenia was defined as a measurement under the 10th percentile according to MR-derived reference values of tPMA percentile charts for healthy children aged 1–18 years. Vitamin D insufficiency was defined as a serum 25-OH-D level below 30 ng/mL and deficiency as that below 20 ng/mL. Collected data from demographic evaluation, clinic, and laboratory tests were statistically assessed. Results: According to the MR-derived reference values of tPMA, 85% (n = 33) of UC and 81% (n = 21) of CD patients had sarcopenia. The severe vitamin D deficiency ratio was 35.9% (n = 14) in UC and 38.5% (n = 10) in CD. We found that vitamin D levels were similar in patients with UC and CD, while they were significantly lower in the group below the 3rd percentile of tPMA (n = 41, median 9.8) than in the group between the 3rd and 10th percentiles (n = 13, median 16.9; p = 0.038). Conclusions: Formulating strategies to recognize and prevent sarcopenia, including the prevention and—if necessary—the treatment of vitamin D deficiency, could bring multi-faceted benefits.

Background: Cholelithiasis is a rare disease in infants, and there is limited data on its risk factors and management. Objectives: To evaluate the risk factors, management, and response to medical treatment of cholelithiasis in infants. Methods: Infants diagnosed with cholelithiasis by ultrasound between 2018 and 2023 were retrospectively analyzed. Details of patient history, imaging findings, current symptoms, and treatments were reviewed. Results: Over 5 years, 98 infants were diagnosed with cholelithiasis. Thirty-three (33.7%) were girls, and the most common risk factors were the use of cephalosporin antibiotic therapy in 46.9%, sepsis in 30.6%, total parenteral nutrition in 29.6%, prematurity in 27.6%, congenital heart disease in 18.4%, and genetic disease (Down syndrome diagnosis in seven patients) in 16.3%. Only fifteen patients (15.3%) were symptomatic. Ursodeoxycholic acid (UDCA) treatment was given to 90.8% of patients, but nine of them used it for a short period or irregularly, and regular users were 81.6%. Gallstones disappeared in 46 patients (46.9%), including 14 (30.4%) without using UDCA regularly. The response rate to UDCA treatment was lower in preterm infants (p = 0.004). Gallstone resolution was higher in the nonusers, 14/18 (77.8%) versus 32/79 (40.5%) (p = 0.03). Acute cholecystitis was observed in only four patients; no other complications were noted. No infant required surgical or endoscopic treatment. Conclusions: UDCA should not be used routinely in children, especially infants, except in symptomatic children with a contraindication to surgery or to reduce clinical symptoms. In the absence of symptoms, patients may be monitored clinically.

Background: This study aims to assess internet addiction among adolescents with functional constipation and its relationship with sociodemographic and family factors. Methods: In this case–control study, 57 and 35 adolescents with and without functional constipation, respectively, were recruited. Functional constipation was diagnosed by applying the Rome IV criteria. Previously validated Young’s Internet Addiction Test-Short Form and Parent–Child Internet Addiction Test were completed, and sociodemographic data forms were filled out by all participants. Results: According to the Parent–Child Internet Addiction Test questionnaire, 8.8% (n = 5) of the adolescents with FC suffered from internet addiction, whereas none of the healthy adolescents had internet addiction. The Young’s Internet Addiction Test-Short Form survey reported internet addiction among 19.3% (n = 11) of the constipated adolescents and 17.1% (n = 6) of the healthy peers. The ratio of adolescents with limited symptoms and internet addiction in the functional constipation group was as high as 40.4%, according to Young’s Internet Addiction Test-Short Form, and adolescents with functional constipation accompanied by pathological and problematic internet use was 24.6%, according to Parent–Child Internet Addiction Test. Although there was no significant difference in the internet addiction ratio between functional constipation and controls, our findings indicated that adolescents with functional constipation were suffering from high internet addiction rates. Conclusion: The evaluation of Young’s Internet Addiction Test-Short Form and Parent–Child Internet Addiction Test surveys showed high internet usage problems, 40.4% and 24.6% in adolescents with functional constipation. According to adolescents’ self-assessment, the internet addiction rate is higher but not significantly higher than their healthy peers. Therefore, internet addiction should be considered while treating adolescents with functional constipation, and clinicians should consider the opinions of adolescents besides their parents. Cite this article as: Çakar S, Eren G. Internet addiction in constipated adolescents. Turk J Gastroenterol. 2023;34(3):287-292.

Background. Collagenous gastritis (CG) is a very rare disease with still lots of unknowns, characterized by the subepithelial collagenous band in the gastric mucosa associated with a mixed inflammatory infiltrate in the lamina propria. Case. Iron deficiency anemia is the most common and usually single laboratory finding without any complaint at the time of diagnosis. This entity should be well-known so that we can examine and refer the patient to a pediatric gastroenterologist for differential diagnosis. Conclusions. The histopathological evaluation, albeit invasive, is essential to exclude this diagnosis. We present a 13-year-old girl with intractable iron deficiency anemia due to CG.

Background and Objectives: The objective of this study is to ascertain the predictive criteria for steroid dependence and relapse in patients diagnosed with ulcerative colitis. Additionally, the study aims to provide data that will enable earlier transition to second-line treatment when necessary. Materials and Methods: The study included 62 patients diagnosed with ulcerative colitis between 2018 and 2023, who were followed up at the Department of Pediatric Gastroenterology, Hepatology, and Nutrition at the University of Health Sciences, Izmir Dr. Behçet Uz Children’s Hospital. Demographic data included age and gender at diagnosis, BMI, weight-for-age, and height-for-age. Laboratory parameters recorded were complete blood count, total protein, albumin, CRP, ESR, IgG, IgM, IgA, IgG subclasses, vitamin D, B12, folic acid, and ferritin levels. Results: The study included 62 patients. Thirty-two patients (51.6%) were female. In the univariate regression analysis, there was an inverse correlation between IgM levels and relapse and steroid dependence (p < 0.01, p = 0.03, respectively). Additionally, a relationship was identified between steroid dependence and hemoglobin, hematocrit, white blood cell count, neutrophil count, platelet count, and albumin levels (p = 0.01, p < 0.01, p < 0.01, p = 0.01, p < 0.01, p = 0.03, respectively). There was a significant relationship between MMES and steroid dependence (p < 0.01). MMES was found to be significant in predicting steroid dependence in patients with pancolitis (AUC: 0.75, 95% CI: [0.60–0.90], p = 0.01). Conclusions: We conclude, as for Crohn’s disease, an algorithm or a specific scoring system for ulcerative colitis is needed for the use of anti-TNF drugs as first-line treatment in pediatric ulcerative colitis. The initial severity of the disease appears to be the most important risk factor in terms of steroid dependence. Based on our study and the literature data, a scoring system incorporating parameters such as hemoglobin, hematocrit, WBC, albumin, platelet, and IgM levels, disease involvement type, initial PUCAI score, and MMES would be prudent to adopt.