Research Appraisals
Evidence-based critical appraisals of the latest medical research, systematically evaluated using Oxford CEBM methodology.
Showing 5 appraisals
Pediatric surgery international
Total versus partial fundoplication in children with gastroesophageal reflux disease: a systematic review and comparative meta-analysis of 2633 patients highlighting the trade-off between reflux control and postoperative dysphagia
INTRODUCTION: Gastroesophageal reflux disease (GERD) is a common condition in children requiring surgical intervention when medical therapy fails. Nissen (total) and Toupet (partial) fundoplications are the most frequently performed antireflux procedures; however, their comparative effectiveness and safety in the pediatric population remain uncertain. METHODS: A systematic literature search was conducted in PubMed, Embase, and Cochrane CENTRAL from database inception to 2025. Eligible studies included randomized controlled trials and observational studies comparing total and partial fundoplication in patients younger than 18 years with GERD. Pooled risk ratios (RR) with 95% confidence intervals (CI) were calculated using random-effects models in R software. RESULTS: Eighteen studies including 2,633 children were analyzed. Total fundoplication was associated with a significantly higher risk of postoperative dysphagia compared with partial fundoplication (RR 1.69; 95% CI 1.07-2.68; p = 0.024; I²=12%; n = 1,154), corresponding to an absolute risk increase of 5.7% and a number needed to harm (NNH) of 17. No significant difference was observed in reflux recurrence (RR 0.72; 95% CI 0.21-2.42; p = 0.59; I²=71% n = 834), although event rates were numerically lower after total fundoplication (6.8% vs. 13.7%), corresponding to an absolute risk reduction of 6.9% (NNT = 15). Intraoperative complications (RR 1.11; p = 0.84), postoperative complications (RR 1.49; p = 0.12), reoperation rates (RR 0.95; p = 0.88), and mortality (RR 1.09; p = 0.74) were comparable between procedures. CONCLUSIONS: Total and partial fundoplication demonstrate similar effectiveness for reflux control and overall safety in pediatric GERD. However, total fundoplication is associated with a higher risk of postoperative dysphagia, suggesting that partial fundoplication may offer functional advantages in selected patients.
10 May 2026
Read appraisal →Journal of neonatal-perinatal medicine
Machine learning demonstrates normal fetal Doppler velocimetry associated with reduced risk of necrotizing enterocolitis among preterm infants with growth restriction
BackgroundNecrotizing enterocolitis (NEC) is an intestinal ischemic disease that affects preterm infants with fetal growth restriction (FGR). The role of fetal Dopplers in stratifying risk for developing NEC is unclear but the innovative use of machine learning technology may aid in identifying their contribution.MethodsThis is a single center retrospective cohort of 164 infants born before 33 weeks' gestation with FGR from 2016 to 2019. We used machine learning to classify NEC and to evaluate the predictive values of gestational age (GA), birth weight (BW), and the presence of abnormal umbilical artery (UA) Dopplers before delivery.ResultsEarly GA and lower BW strongly predicted NEC. The presence of normal fetal UA Dopplers was heavily weighted in classifying infants unlikely to develop NEC. Fetal UA Dopplers had a 95% specificity (15% sensitivity) for NEC.ConclusionsIf validated, normal fetal UA Doppler studies may identify infants with FGR at low risk for NEC who may avoid conservative NEC-prevention strategies.
9 May 2026
Read appraisal →Journal of investigational allergology & clinical immunology
Dupilumab in Eosinophilic Gastrointestinal Disorders With Extraesophageal Involvement: A Pediatric Case Series and Systematic Review
Dupilumab has proven effective in the treatment of eosinophilic esophagitis (EoE) in randomized controlled trials. Its efficacy in other, less common and generally more severe eosinophilic gastrointestinal disorders (EGIDs) is scientifically plausible, although it has not been studied to date. Our objective was to describe published and our experience on the empirical use of dupilumab in patients affected by EGIDs with extraesophageal involvement. We retrospectively analyzed the medical charts of children diagnosed with extraesophageal EGIDs treated with dupilumab at our tertiary medical center. The Medline, Embase, and Cochrane databases were searched up to January 2025 for articles describing the use of dupilumab in patients with diagnosed or suspected extraesophageal EGID. Our cohort included 8 patients with a clinical and histological diagnosis of EGID and extraesophageal involvement. All of them had recurrent gastrointestinal symptoms refractory to standard treatments. Three patients had growth retardation. In all patients, symptoms and macroscopic and histological abnormalities, including eosinophilic infiltration, quickly improved after initiation of dupilumab. The systematic review identified 11 case reports (n=29 patients) of pediatric and adult patients with extraesophageal EGIDs treated with dupilumab. All 11 reports described significant clinical and histological improvement following therapy. Clinical experience suggests that dupilumab is effective in treating pediatric EGIDs with extraesophageal features. Given the rarity and high morbidity of these disorders, dupilumab could be considered a reasonable option while waiting for high-quality evidence from ongoing randomized controlled trials.
16 Apr 2026
Read appraisal →European journal of pediatrics
Clinical response and risk factors of fecal microbiota transplantation in children: a systematic review and meta-analysis
UNLABELLED: The objective of this study is to investigate the clinical response and incidence of adverse events (AEs) following fecal microbiota transplantation (FMT) in children, across various diseases, populations, and treatment protocols. A systematic search was conducted across eight major Chinese and English databases, identifying 47 studies up to August 28, 2025, for inclusion. Study quality was assessed using the Quality Assessment with Diverse Studies (QuADS) tool. Single-arm rates were pooled via meta-analysis employing the Freeman-Tukey double arcsine transformation, followed by extensive subgroup comparisons to identify influencing factors. FMT demonstrated efficacy in pediatric recurrent Clostridium difficile infection (rCDI), inflammatory bowel disease (IBD), and autism spectrum disorder (ASD), although a higher incidence of AEs was observed in children with IBD. Subgroup analyses revealed that the use of donor feces from relatives or friends was associated with a higher clinical response rate in rCDI. The presence of comorbidities such as IBD diminished the response rate in rCDI patients. Younger age in rCDI and IBD patients showed a trend towards higher clinical response rates, though this did not reach statistical significance. No statistically or clinically significant differences were found in other subgroup comparisons. Meta-regression suggested IBD to be a risk factor for FMT-related AEs. CONCLUSION: This study innovatively delineates the efficacy-safety profile of pediatric FMT and outlines a pathway for optimizing individualized treatment regimens, providing crucial evidence-based guidance for clinical practice. TRIAL REGISTRATION: This study has been registered on the PROSPERO database (CRD42024614196). WHAT IS KNOWN: • Fecal Microbiota Transplantation (FMT) demonstrates preliminary therapeutic potential in several pediatric diseases. • Existing evidence remains fragmented, with limited systematic data on factors modifying efficacy and safety in children. WHAT IS NEW: • The study revealed FMT's high efficacy across rCDI, IBD, and ASD, and identified IBD as a risk factor for elevated FMT-related adverse events in pediatric patients. • Notably, related/friend donors improved rCDI response rates, while comorbidities like IBD reduced rCDI treatment efficacy.
15 Apr 2026
Read appraisal →European journal of pediatrics
Efficacy of physiotherapeutic interventions in the management of functional constipation in pediatric and adolescent populations: a systematic review and meta-analysis
UNLABELLED: To evaluate the efficacy of physiotherapeutic interventions in the management of functional constipation (FC) in pediatric and adolescent populations, and to analyze the methodological quality of the available evidence. A systematic review of randomized controlled trials (RCTs) published in PubMed, Cochrane Library, Embase, and Web of Science was conducted (February-March 2025). Studies including participants aged 18 years diagnosed with FC, treated with pelvic floor physiotherapy versus conventional medical treatment, were included. Methodological quality was assessed using the PEDro scale (Physiotherapy Evidence Database). Seven clinical trials were included in the meta-analysis with sample sizes ranging from 45 to 400 participants (total n = 775). The interventions covered pelvic floor exercises, biofeedback, telerehabilitation, visceral mobilization, and electrostimulation. The majority showed improvements in painful defecation, fecal consistency, and quality of life, with less consistent results in defecatory frequency (MD = 1.00; 95% CI: 0.35 to 1.65). However, the marked heterogeneity in protocols (type, intensity, duration), variability in assessment instruments, and frequent co-intervention with polyethylene glycol (PEG) hinder comparison between studies and limit external validity. Follow-ups shorter than 12 months and the absence of blinding of participants and therapists constitute additional risks of bias. CONCLUSIONS: Pelvic floor physiotherapy appears to be a promising adjuvant intervention in the treatment of pediatric FC, with positive effects on symptoms and quality of life. Nevertheless, multicenter trials with standardized protocols, large samples, and prolonged follow-up are required to confirm its efficacy and long-term sustainability. WHAT IS KNOWN: •Despite the clinical use of physiotherapy, there was no quantitative synthesis integrating its efficacy against standard medical treatment, nor had its specific effect size on defecatory pain and quality of life been established in the pediatric population. WHAT IS NEW: •This meta-analysis confi rms that pelvic fl oor physiotherapy is an eff ective adjuvant with a large effect size, demonstrating consistent improvements in reducing painful defecation and enhancing the biopsychosocial dimensions of quality of life.
12 Apr 2026
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