Gastroenterology Unit Research Articles

Rational application of the ESPGHAN 2022 recommendations for the follow-up of the paediatric coeliac patient: consensus document of scientific societies (SEGHNP, AEPAP, SEPEAP, SEEC, AEG, SEPD, SEMFYC, SEMG and SEMERGEN)

Coeliac disease is a common condition for which the only current treatment is a gluten-free diet. Adherence to this diet is not always easy and is associated with a reduction in quality of life for the patient and their family. Non-adherence is associated with complications of varying severity. The lack of control at the outpatient care level in a high percentage of these patients evinces the need to improve follow-up protocols and the approach to care delivery with coordination of paediatric gastroenterology units (PGU) and primary care paediatricians. With this aim in mind, the present document was developed by consensus to offer a set of recommendations adapted to our region, based on the recent recommendations published by the European Society of Paediatric Gastroenterology, Hepatology and Nutrition (ESPGHAN), and with participation of the pertinent scientific societies, including those concerning the adult population, for the management and follow-up of adolescents and the transition to adult care.

Trend of Helicobacter pylori Infection in Childhood: A Single-Center Experience.

Helicobacter pylori (HP) is the most common bacterial infection in humans. Helicobacter pylori infection, which frequently increases with age, is seen in 30%-56.6% of children in Turkey, although it varies by region. In this study, we aimed to determine the frequency of HP in children and adolescents who underwent upper gastrointestinal endoscopy and gastric biopsy in our region and to compare the changes over the years. Cases who underwent upper gastrointestinal endoscopy for various indications between 2007 and 2022 in our pediatric gastroenterology unit were included in the study. The clinical and endoscopic characteristics of 1737 cases whose histopathologic specimens were obtained, have been retrospectively analyzed from their records. The diagnosis of HP infection was based on the presence of HP on histopathologic examination of gastric biopsy specimens. Of 1737 cases, 504 (29%) were HP positive. The HP positive case rates were 14.5%, 26.9%, and 33.6% in the 0-6, 7-12, and 13-18 age groups, respectively. H. pylori positivity was detected in 65.7% of patients with duodenal ulcers, and the relationship between duodenal ulcers and HP positivity was significant (P < .001). The average HP positivity rates were 44%, 28.6%, and 24.2% in 2007-2012 (group 1), 2013-2017 (group 2), and 2018-2022 (group 3). H. pylori positivity rates significantly decreased in years (P = .001/P = .056/P < .001). We found that the frequency of HP infection in children decreased in our region over the years. Helicobacter pylori positivity was higher in older than younger children. A decrease in HP frequency prevalence may be possible in parallel with awareness and socioeconomic development.

Characterization of a Romanian Pediatric Population with Eosinophilic Esophagitis.

Background/objectives: An increase in the incidence of eosinophilic esophagitis (EoE) in children has been reported worldwide in the last decade. We conducted a study in a tertiary pediatric gastroenterology unit aimed at analyzing the clinical manifestations, biochemical markers, and endoscopic features of children with EoE in comparison to patients with non-eosinophilic esophagitis. Methods: This is a prospective analysis involving children with symptoms related to esophageal dysfunction, who had esophagogastroduodenoscopies with esophageal biopsies between January 2021 and April 2024 at "Dr. Victor Gomoiu" Clinical Children's Hospital, in Bucharest, Romania. For the analysis, patients were considered in either Group 1, classified as EoE, or in Group 2, classified as reflux esophagitis. Results: Among the total of 72 patients diagnosed with esophagitis, 17 patients (Group 1-study group) were classified as EoE and 55 were classified as reflux esophagitis (Group 2-control group). The sex ratio analysis showed a male predominance in the study group (71% vs. 32%, p = 0.002). The main symptoms were regurgitation, eructation, and nausea. Dysphagia was present in two (11.76%) patients from Group 1. Eosinophilia was more prevalent in the EoE group than in the individuals with gastroesophageal reflux disease (GERD) (10 (58.85%) vs. 10 (18.18%, p = 0.001)), as well as the total IgE (11 (64.70%) vs. 6 (10.9%, p = 0.001)). Conclusions: Pediatric gastroenterologists need to be aware of EoE atypical presentation and perform adequate biopsies, mainly in children with refractory GERD-like symptoms, dysphagia, and food bolus impaction. Further analyses in terms of prognosis and treatment response should be addressed in longitudinal studies.

Prevalence of delivery mode in an Italian nationwide cohort with celiac disease: a SIGENP multicenter retrospective study (the CD-deliver-IT)

BackgroundStudies have indicated an association between cesarean section (CS), especially elective CS, and an increased risk of celiac disease (CD), but the conclusions of other studies are contradictory. The primary aim of this study (CD-deliver-IT) was to evaluate the rate of CS in a large population of CD patients throughout Italy. MethodsThis national multicenter retrospective study was conducted between December 2020 and November 2021. The coordinating center was the Pediatric Gastroenterology and Liver Unit of Policlinico Umberto I, Sapienza, University of Rome, Lazio, Italy. Eleven other referral centers for CD have participated to the study. Each center has collected data on mode of delivery and perinatal period of all CD patients referring to the center in the last 40 years.ResultsOut of 3,259 CD patients recruited in different Italian regions, data on the mode of delivery were obtained from 3,234. One thousand nine hundred forty-one (1,941) patients (60%) were born vaginally and 1,293 (40%) by CS (8.3% emergency CS, 30.1% planned CS, 1.5% undefined CS). A statistically significant difference was found comparing median age at time of CD diagnosis of patients who were born by emergency CS (4 years, CI 95% 3.40–4.59), planned CS (7 years, CI 95% 6.02–7.97) and vaginal delivery (6 years, CI 95% 5.62–6.37) (log rank p < 0.0001).ConclusionsThis is the first Italian multicenter study aiming at evaluating the rate of CS in a large population of CD patients through Italy. The CS rate found in our CD patients is higher than rates reported in the general population over the last 40 years and emergency CS seems to be associated with an earlier onset of CD compared to vaginal delivery or elective CS in our large nationwide retrospective cohort. This suggests a potential role of the mode of delivery on the risk of developing CD and on its age of onset, but it is more likely that it works in concert with other perinatal factors. Further prospective studies on other perinatal factors potentially influencing gut microbiota are awaited in order to address heavy conflicting evidence reaming in this research field.

Clinical and demographic features of patients undergoing video-capsule endoscopy management: A descriptive study.

Video-capsule endoscopy (VCE) is an efficient tool that has proven to be highly useful in approaching several gastrointestinal diseases. VCE was implemented in Colombia in 2003, however current characterization of patients undergoing VCE in Colombia is limited, and mainly comes from two investigations conducted before the SARS-CoV-2 pandemic period. To describe the characteristics of patients undergoing VCEs and establish the main indications, findings, technical limitations, and other outstanding features. A descriptive study was carried out using data from reports of VCE (PillCam SB3 system) use in a Gastroenterology Unit in Bogotá, Colombia between September 2019 and January 2023. Demographic and clinical variables such as indication for the VCE, gastric and small bowel transit times (GTT, SBTT), endoscopic preparation quality, and limitations were described [n (%), median (IQR)]. A total of 133 VCE reports were analyzed. Most were in men with a median age of 70 years. The majority had good preparation (96.2%), and there were technical limitations in 15.8% of cases. The main indications were unexplained anemia (91%) or occult bleeding (23.3%). The median GTT and SBTT were 14 and 30 minutes, respectively. The frequencies of bleeding stigma (3.79%) and active bleeding (9.09%) were low, and the most frequent abnormal findings were red spots (28.3%), erosions (17.6%), and vascular ectasias (12.5%). VCE showed high-level safety. The main indication was unexplained anemia. Active bleeding was the most frequent finding. Combined with artificial intelligence, VCE can improve diagnostic precision and targeted therapeutic interventions.

Diagnostic Yield of Same Setting Oesophago-Gastro-Duodenoscopy (OGD)and Colonoscopy for Pediatric Patients with Chronic Diarrhea

Abstract Background In patients with unexplained chronic diarrhea colonoscopy and upper GI endoscopy are helpful in the diagnosis. It is the routine practice in Ain Shams University pediatric endoscopy unit to perform both procedures at same setting for patients with unexplained chronic diarrhea. Aim of the Work To find out whether doing Oesophago-gastro-duodenoscopy (OGD) and colonoscopy in patients with chronic diarrhea in one setting is essential for the diagnosis of all cases. Patients and Methods Fifty patients presenting with chronic unexplained diarrhea (&amp;gt;4 weeks duration) in Paediatric Gastroenterology Unit, Children’s Hospital, Ain-Shams University were enrolled. After full history taking, physical examination, both endoscopies were performed biopsy taken and histopathological recording for each sample. Results Of 50 patients with chronic diarrhea included in our study; 23 (46%) had positive endoscopic findings in the OGD. Most common findings in esophagus and stomach were inflammation and erythema. while most common findings in duodenum were edema and flattened mucosa. Colonoscopy findings were positive in 50% of patients including inflammation, nodularity, and edema mostly in the ileum. 50% of endoscopied patients reached final diagnosis based on endoscopy and histopathology. Definitive diagnosis reached through EGD alone in (12%) of cases, through colonoscopy alone in (28%) and through both techniques in (60%). There was no statistical significant agreement between endoscopy findings and predominant gastrointestinal manifestations including different types of diarrhea, fecal calprotectin with p-value =0.150, and 0.833 respectively. There was no statistical significant agreement between final diagnosis and suspected GIT part involvement on initial clinical evaluation with p- value=0.805. Conclusion Endoscopy for upper gastrointestinal tract and colonoscopy at same day may be helpful in diagnosis of cases with chronic diarrhea as we can't decide which one to perform based on clinical presentation.

DIAGNOSTIC YIELD OF HIGH-RESOLUTION MANOMETRY IN PATIENTS WITH ESOPHAGEAL MOTILITY DISORDERS

Background: Advances in high-resolution esophageal manometry (HREM) have overturned the clinical assessment of esophageal motility disorders. It has been widely incorporated into clinical practice as it is a delicate diagnostic tool for assessing esophageal motility patterns. Objective: To assess the diagnostic ability of HRM in categorization of esophageal motility disorder using the Chicago Classification v3.0 Patients and Methods: a retrospective descriptive study done on 100 adult patients who underwent esophageal manometry test in the Endoscopy unit of Gastroenterology and Hepatology center at Azadi Teaching Hospital in Duhok city. The study was conducted from January 2021 to March 2022 by reviewing the high-resolution esophageal manometry of these patients using the Chicago classification v3.0. The recorded esophageal symptoms were correlated with the findings obtained during HREM test. Results: The mean age of the participants was 44.8 years with a standard deviation of 16 year. Females were on average older than males with a mean age of 47.8 years compared to 41.2 year for males. More than half of the patients (53%) had dysphagia as the main symptom that HRM done for. Globus sensation was the second one (14%) followed by Gastroesophageal reflux disease (GERD) (13%). The yield of HRM found to be abnormal (77%) as esophageal motility disorders. Those patients with dysphagia had achalasia II as the highest frequency (28.3%), while no even one patient of those with GERD, globus sensation or nausea and vomiting had achalasia detected by HRM. The most frequent result of GERD patients was esophagogastric junction outflow obstruction (38.5%). More than half (57.1%) of patients with globus sensation had a normal HRM test. Distal esophageal spasm was found to be the most frequent finding among patient with non-cardiac chest pain. Conclusion: There is an apparent diagnostic value of HRM in categorization of esophageal dysmotility when applying the Chicago Classification v3.0 in those patients with suggestive symptoms of motility disorders.

The Spanish Familial Pancreatic Cancer Registry (PANGENFAM): a decade follow-up of individuals at high-risk for pancreatic cancer

The Spanish Familial Pancreatic Cancer Registry (PANGENFAM) was established in 2009 and aims to characterize the genotype and phenotype of familial pancreatic cancer (FPC). Furthermore, an early detection screening program for pancreatic ductal adenocarcinoma (PDAC) is provided to healthy high-risk individuals from FPC and hereditary pancreatic cancer families (first-degree relatives). This article describes our experience over the last 10 years in high-risk screening. Hereditary and familial pancreatic cancer families were identified through the oncology and gastroenterology units. High-risk individuals underwent annual screening with endoscopic ultrasound (EUS) and magnetic resonance (MRI) from age 40 or 10 years younger than the youngest affected family member. Results: PANGENFAM has enrolled 290 individuals from 143 families, including 52 PDAC cases and 238 high-risk individuals. All high-risk individuals eligible for screening were offered to enter the surveillance program, with 143 currently participating. Pancreatic abnormalities were detected in 94 individuals (median age 53 years (29–83), with common findings including cystic lesions and inhomogeneous parenchyma. Imaging test concordance was 66%. Surgical intervention was performed in 4 high-risk individuals following highly suspicious lesions detected by imaging. PANGENFAM is a valuable resource for science innovation, such as biobanking, with clinical and imaging data available for analysis. For high-risk families, it may offer a potential for early diagnosis. Collaboration with other national and international registries is needed to increase our understanding of the disease biology and to standardize criteria for inclusion and follow-up, optimizing cost-effectiveness and efficacy.

Role of Healthy Lifestyle and Diet Quality in the Development of Colorectal Cancer in the Adult Population in the Kurdistan Region: A Case-Control Study.

Background The incidence of colorectal cancer (CRC) is increasing in developing countries. The factorscontributing to the risk of CRC are not known in developing countries. Therefore, this study aimed to explore the role of a healthy lifestyle on CRC in the adult population in the Kurdistan Region of Iraq. Methodology In this case-control investigation, patients previously diagnosed with CRC were included as cases (n = 84) and the healthy adult population as healthy controls (n = 87). The patients were selected from the Gastroenterology Unit of Azadi Teaching Hospital and Emergency Teaching Hospital. The healthy controls were selected from the caregivers of patients who met the eligibility criteria. Results Individuals with a history of chronic disease (63.08% vs. 40.52%; p = 0.0043), a history of hypertension (71.74% vs. 40.80%; p = 0.0003), and a history of inflammatory bowel disease (IBD) (59.42% vs. 42.16%; p = 0.0267) had a significantly higher prevalence of CRC compared to healthy controls. CRC patients had significantly lower diet quality scores than healthy controls (36.27 vs. 37.83; p = 0.0002). The study showed that CRC patients had a significantly lower lifestyle index score compared to healthy controls (10.20 vs. 11.69; p = 0.0002). In addition, CRC patients had lower scores for diet (0.42 vs. 1.00; p < 0.0001), smoking (2.92 vs. 4.0; p < 0.0001), and physical activity (1.02 vs. 1.70; p < 0.0001) compared to healthy controls. However, CRC patients and healthy controls had similar alcohol index scores (5.0 vs. 530; p = 1.000) and body mass index (1.04 vs. 1.01; p = 0.8982). Conclusions This study showed that CRC was associated with having a history of bad diet quality and unhealthy lifestyles. In addition, a history of chronic diseases, hypertension, and IBD was associated with the risk of CRC.

Prevalence and predictors of severe Crohn's disease at a tertiary hospital in South Africa.

Background Predicting severe Crohn's disease (SCD) can assist in planning risk reduction therapy for SCD, thereby improving disease outcomes. Objective To determine the prevalence and predictors of SCD in a sample of South African patients. Methods This was a retrospective chart review of patients with Crohn's disease (CD) attending the Gastroenterology Unit at a tertiary hospital in Durban, South Africa. Demographic and clinical variables at diagnosis of CD were collected and analysed for statistical association with development of SCD (defined as the presence of >/= 1 of the following over the course of CD: complex perianal disease, colonic resection >/= 2 small bowel resections, a single small bowel resection > 50cm, or construction of a definitive stoma). The prognostic utility of statistically significant variables was investigated by establishing their sensitivity, specificity, and predictive values for SCD. Results The study consisted of 93 patients. The rate of SCD was 64.5%, with 63.3 % of patients developing SCD within 1 year of CD diagnosis. Ileocolonic location (p = 0.046) and penetrating disease at initial diagnosis of CD (p = 0.021) were statistically associated with SCD. The sensitivity, specificity, positive predictive value, and negative predictive value of ileocolonic location for SCD was 72.7%, 47.4%, 66.7% and 54.6%. The sensitivity, specificity, positive predictive value, and negative predictive value of penetrating disease for SCD was 85.7%, 41.7%, 30.0% and 91.0%. Conclusion Most patients with CD developed SCD within 1 year of their CD diagnosis. CD with a penetrating phenotype at diagnosis is a good predictor for the devleopment of SCD and should be further investigated.

Level of interleukin 17 in inflammatory bowel disease and its relation with disease activity

BackgroundInflammatory bowel disease (IBD) is a chronic relapsing inflammatory disorder of the gastrointestinal tract (GIT).It results in progressive intestinal epithelium structural and functional damage that necessitates lifetime medication.Thereis imbalance in the production of T helper 1 (Th1), Th2 and Th17 cytokines. This plays a crucial role in the chronic inflammatory process and the defective immune response to pathogenic agents; thus promoting the recurrence of the disease.Our aim of this study was to detect serum IL-17 levels in IBD patients and its relation with disease activity.MethodsThis was a single center case control study, conducted at hepatology and gastroenterology unit, Mansoura specialized Medical Hospital, Egypt.Patients who were included were aged 18–65 years, diagnosed either Ulcerative Colitis (UC)or Crohn’s Disease (CD) based on previous colonoscopy.IBD activity was measured for UC using the MAYO score and CD using the CD activity index (CDAI). Fifty five patients were UC, 24 patients were CD, 21 patients were control.Patients who were excluded were under 15 years old, with history of GIT malignancy, or any serious comorbidities. Study protocol was approved by Institution Research Board (IRB) of Mansoura Medical College.All patients were subjected to full history taking, routine physical examination, colonoscopy and laboratory investigations including serum IL-17 levels by ELISA besides CBC, CRP, ESR and fecal calprotectin.ResultsSerum IL-17 level was increased significantly among UC; median (min-max) = 72(21–502)pg/ml, in CD 54.5(25–260) versus control 19 (14–35), P < 0.001.However, it was not correlated to the disease activity either Mayo score of UC or CDAI of CD.There was significant correlation to the extent of inflammation in UC affecting the colon (either proctosigmoiditis, left sided colitis or pan colitis), also to the type of CD (either inflammatory, stricturing or fistulizing) by P < 0.05.It was not correlated significantly with any of the IBD activity markers (CRP, ESR, or fecal calprotectin).Yet there was negative significant correlation with Hb level (r =-0.28, p = 0.005).There was not significant association between median serum level of IL-17 & duration of disease (P = 0.6).However, median IL-17 was higher among hospitalized cases than non-hospitalized (73 & 55, pg/ml respectively; p < 0.002). AUC was significantly differentiating between IBD and control group = 0.993 with the best-detected cut off point from curve 32 pg/ml yielding sensitivity of 97.5% and specificity of 95.2%.ConclusionSerum IL-17 increases in colonic inflammation significantly more than in control group, however its increase is not correlated to IBD activity.

Self-perceived health of patients hospitalized due to non-psychiatric conditions: associations with psychiatric comorbidities and substance use

IntroductionSelf-perceived health (SPH) is an epidemiologically used variable, recognized as a subjective yet predictive indicator of mortality (Bopp et al. Plos One 2012; 7:e30795) SPH, among other subjective indicators, such as quality of life, contributes to understanding an individual’s overall experience and well-being. While health information, including medical diagnoses given by physicians, forms a substantial part of an individual’s subjective health (Falconer &amp; Quesnel-Vallée, 2017; 190 227-236) the World Health Organization (WHO, 2014) defines health not only by the absence of somatic diseases but also encompasses components of social and mental well-being.ObjectivesThis study aims to explore factors associated with a poorer level of self-perceived health in inpatients due to non-psychiatric conditions with a focus on mental health and substance use-related factors.MethodsWe recruited 800 patients during their hospital stay for various pathologies in cardiology, pneumology, internal medicine, and gastroenterology units. Self-reported sociodemographic variables and well-being-related variables, such as SPH, were collected during admission. The MINI Neuropsychiatric Interview was administered to screen for psychiatric conditions, the ASSIST scale assessed the risk related to the use of various substances. Data on the frequency and quantity of substance use, in the three months prior to admission, were also recorded by timeline follow-back. Information on the severity of somatic comorbidity was gathered using the Charlson Comorbidity Index. Non-parametric tests compared SPH in different groups, and variables showing significant differences were included in a multivariate linear regression analysis. This study obtained approval from the ethics committee.ResultsSignificant and clinically relevant differences were found in the SPH of patients with anxiety disorders, depressive disorders, and bipolar disorders. These patients reported lower SPH than those without these comorbidities. Patients scoring medium or high risk on the ASSIST scale for tobacco, alcohol, and cannabis also demonstrated lower SPH compared to those with low-risk scores. In the multivariate analysis, accounting for confounding factors, including comorbidity severity, patients with depressive disorders maintained statistically significant lower levels of SPH (ß = -13.391, p &lt; 0.001), as did those with bipolar disorders (ß = -6.096, p = 0.019).ConclusionsPatients with anxiety, depressive, or bipolar disorders, as well as those with higher-risk use of tobacco, alcohol, and cannabis, exhibited lower SPH. After adjusting for other relevant factors, such as diagnosed somatic pathology, patients with affective disorders continued to score lower in SPH levels. Proper attention and management of psychiatric comorbidities and substance use are crucial in medical hospital settings.Disclosure of InterestM. Pons-Cabrera Employee of: This work has been funded by Contractes Clínic de Recerca “Emili Letang - Josep Font” 2021 granted by Hospital Clínic of Barcelona, E. Caballería-Lamora: None Declared, L. Navarro-Cortés: None Declared, M. Balcells-Oliveró: None Declared, L. Pintor-Pérez: None Declared, H. López-Pelayo: None Declared

Frequency of different causes of thrombocytosis among patients presenting to tertiary care hospital.

Objective: To assess the prevalence and underlying causes of thrombocytosis among patients seeking medical attention at a prominent tertiary care facility located in Lahore. Thrombocytosis, characterized by an elevated platelet count, can signify an array of underlying health conditions, and this research seeks to unravel the frequency of these causes within the study population. Study Design: Cross-sectional. Setting: Department of Pathology, Allama Iqbal Medical College and Jinnah Hospital. Period: November 2019 to May 2020. Methods: A total of 150 patients were carefully selected from diverse medical specialties, including but not limited to medical, surgical, gynecological, obstetric, gastroenterological, nephrological, and intensive care units. The diagnostic criteria for thrombocytosis were aligned with the operational definition provided by the World Health Organization (platelet count exceeding &gt;450 x 10^9/L) during the stipulated study period. Statistical analysis of gathered data was performed using SPSS version 17.0. Results: The findings of the study showcased that infections and iron deficiency emerged as the predominant contributors to thrombocytosis among the adult patient cohort. These factors were trailed by conditions like chronic infections, trauma accompanied by blood loss, and instances of splenectomy. Interestingly, instances of primary thrombocytosis, notably essential thrombocythemia, constituted a mere 2% of the overall sample size, signifying its rarity within this adult population. Conclusion: In the realm of thrombocytosis, the research highlights a notable prevalence of secondary thrombocytosis, while primary thrombocytosis remains a considerably infrequent occurrence among adults. The study emphasizes the significance of infections and iron deficiency anemia as the leading triggers for secondary thrombocytosis. Such insights contribute to an improved understanding of the spectrum of conditions associated with elevated platelet counts and may aid clinicians in effectively diagnosing and managing these underlying causes.

Echocardiographic Assessment of Right Ventricular Function in Patients With Liver Cirrhosis.

In patients with chronic liver disease, the common endpoint of its course is liver cirrhosis which is a cause of cardiovascular morbidity and mortality. These abnormalities in the cardiovascular system, especially the heart, can be detected by echocardiography. Identifying and acting on these abnormalities can have an impact on their management thereby reducing morbidity and mortality of patients with liver cirrhosis. The aim of this study was to determine the prevalence of right ventricular systolic and diastolic dysfunction in liver cirrhosis patients. A hospital-based cross-sectional study was conducted among adult patients of the gastroenterology unit (ward and clinic) diagnosed with liver cirrhosis. A total of 243 patients were recruited and 210 were evaluated for this study. This study was carried out over one year. Cardiology studies, including electrocardiography and echocardiography, were conducted on patients to assess right ventricular function. Among the participants, 44.8% had right ventricular hypertrophy and 3.8% had right ventricular dilatation. Using Tricuspid Annular Plane Systolic Excursion (TAPSE), 17.1% were found to have right ventricular systolic dysfunction and 51.4% had systolic dysfunction using FAC. Diastolic dysfunction was found in 61% of the participants and grade 2 diastolic dysfunction was the commonest. From this study, a high prevalence of right ventricular systolic and diastolic dysfunction was recorded among patients with liver cirrhosis.

Cross sectional study on the molecular detection of Hepatitis B virus in patients with chronic liver disease in Guntur, India revealed mutations in Genotype A of occult HBV

The present study was aimed at the molecular detection of HBV infection among patients with chronic liver disease (CLD) and to study the mutation spectrum S-gene region in the occult HBV strains. An observational study conducted on 200 clinically diagnosed CLD cases enrolled from the Gastroenterology unit. Two hundred serum samples were screened with Fibroscan and for HBsAg, HBCT and estimated liver enzymes. Samples positive for either HBsAg or Anti HBc total were further evaluated for other HBV markers and presence of HBV DNA. The S region was amplified in occult CHB cases and sequenced. 70.5% (141) of the patients with CLD were suffering with Chronic Hepatitis B virus (CHB). The HBV DNA was detected in 19.14% patients. Four cases were in occult phase. Two samples of them could be amplified. The isolates belong to the genotype A, and revealed certain mutations leading to novel amino acids. Mutations in the S gene sequences of HBV virus from the Occult HBV infection (OBI) patients would lead to immune escape or cause occult infection. In the Genotype A at two positions, amino acids that are likely to cause occult infection are observed apart from mutations at certain positions leading to novel amino acids.

Analysis of feeding and eating disorders in 191 children according to psychiatric or gastroenterological recruitment: The PEDIAFED cohort study.

The DSM-5 classification introduced new Feeding and Eating Disorders (FED) diagnostic categories, notably Avoidant and Restrictive Food Intake Disorder (ARFID), which, like other FED, can present psychiatric and gastrointestinal symptoms. However, paediatric clinical research that focuses on children below the age of 12years remains scarce. The aim of this study was first to investigate the clinical features of FED in a cohort of children, second to compare them according to their recruitment (gastroenterology or psychiatry unit). This non-interventional retrospective cohort study analysed 191 patients in a French paediatric tertiary care centre (gastroenterology n=100, psychiatry n=91). The main outcome variables were clinical data (type of FED, BMI, nutritional support, chronic diseases, psychiatric comorbidities, sensory, sleep, language disorders, gastrointestinal complaints, adverse life events, family history). The outcome was defined by a Clinical Global Impression of Change-score. FED diagnoses were ARFID (n=100), Unspecified FED (UFED, n=57), anorexia nervosa (AN, n=33) and one pica/rumination. Mean follow-up was 3.28years (SD 1.91). ARFID was associated with selective and sensory disorders (p<0.001); they had more anxiety disorders than patients with UFED (p<0.001). Patients with UFED had more chewing difficulties, language disorder (p<0.001), and more FED related to chronic disease (p<0.05) than patients with ARFID and AN. Patients with AN were female, underweight, referred exclusively to the psychiatrist, and had more depression than patients with ARFID and UFED (p<0.001). The gastroenterology cohort included more UFED, while the psychiatry cohort included more psychiatric comorbidities (p<0.001). A worse clinical outcome was associated with ARFID, a younger age at onset (p<0.001), selective/sensory disorders and nutritional support (p<0.05). ARFID and UFED children were diagnosed either by gastroenterologists or psychiatrists. Due to frequently associated somatic and psychiatric comorbidities, children with FED should benefit from a multidisciplinary assessment and care.

P130 High serum lipocalin-2 expression at the diagnosis in children with ulcerative colitis: a pilot study

Abstract Background The identification of new biomarker is a main challenge in inflammatory boweldisease. Lipocalin-2 (LCN-2) is a pleiotropic mediator of various inflammatory processes. We determined the serum levels of LCN-2 in a cohort of newly diagnosed UC children, and we compared them with healthy controls. Methods Prospective cross-sectional observational study conducted at the Pediatric Gastroenterology, hepatology, and nutrition Unit of the Umberto I Hospital in Rome and at the IBBC – Institute of Biochemistry and Cell Biology – CNR in Rome. All children aged 6-18 years of age, newly diagnosed with UC at the Pediatric Gastroenterology and Liver Unit, Sapienza University of Rome, were consecutively enrolled. Blood withdrawal was conducted upon diagnosis. Human serum LCN-2 (Cat. No. DY1757) was measured using a sandwich enzyme-linked-immunosorbent assay (ELISA) kits (R&amp;D Systems, Minneapolis, MN, USA), according to the protocols provided by the manufacturer. Clinical, demographic, biochemical and endoscopic data were recorded. Results Thirty-two children with a new diagnosis of UC [11 (34%) female, mean age 12,7 ± 4] and 38 age- and sex-matched healthy control [21 (55%) females, mean age 11.71 ± 4] were consecutively enrolled. Serum LCN-2 levels were significantly higher in cases compared to controls (280 ± 152 ng/mL vs 66 ± 55 ng/mL), p &amp;lt; 0,001]. Among UC children, significantly higher LCN2 levels were measured in pancolitis (363.7± 155.2 ng/mL) compared to proctitis, left-sided and extensive colitis (184.9 ± 74.65 ng/mL; p = 0.0003). A significant inverse correlation was observed between LCN-2 and albumin levels at the diagnosis by the Spearman coefficient correlation (r = −0.455; P = 0.03) and a significant direct correlation was observed between LCN-2 and CRP values at the diagnosis (r = 0.44; p &amp;lt;0.05). Conclusion Serum LCN-2 levels are significantly higher in children with UC compared to the healthy control group, with the highest levels observed in children with the most extensive disease. Such results as well as and its correlation with the actual disease monitoring tool, make this protein an interesting candidate biomarker.

P411 Is transmural healing better than mucosal healing in pediatric Crohn’s disease?

Abstract Background While the long-term benefit of achieving mucosal healing (MH) in Crohn’s disease (CD) has been demonstrated, data on transmural healing (TH), assessed by non-invasive imaging modalities (i.e. magnetic resonance enterography, MRE) are scarce, particularly in the pediatric setting. Nonetheless it has been deemed as an adjunctive target for CD by the STRIDEII consensus. We aimed to investigate the outcomes of pediatric CD patients with TH comparing them to those with MH and with “no healing”. Methods Prospective, single-center, observational study conducted at the Pediatric Gastroenterology and Liver Unit of the Umberto I Hospital, Sapienza University of Rome. Children with an established diagnosis of CD and under biological therapy undergoing an MRE and an ileocolonoscopy performed within a 3-month interval were consecutively enrolled. Transmural healing was defined as the complete healing of both the mucosa at endoscopy (absence of ulceration) and of the bowel layers at the MRE. In the presence of a normal colonoscopy but an active MRE children were deemed as MH. The group “no healing” (NH) included children with an active endoscopy, regardless of the MRE classification. At 6, 12, and 24 months, the following outcomes were evaluated and compared in the three groups: disease flares, CD-related hospitalization, CD-related surgery, need for step-up treatment, and occurrence of complications. Results 93 children were included (30% female, mean age 11,2±3,8). Twenty-three (25%) were classified as TH, 27 (29%) as MH and 43 (46%) as NH. Overall, at the Kaplan Meier analysis, the risk of any unfavorable outcome was significantly lower in both TH and MH patients compared to NH (Log Rank p&amp;lt;0.0001 and p=0.002, respectively). Specifically, children with TH were at lower risk of hospitalization (p=0.02), and complications (p=0.007) compared to those with NH. No difference was found between MH and NH children for the same outcomes. Both TH and MH children were at lower risk of step-up treatment (p&amp;lt;0.0001 and p=0.0.0002, respectively) compared to NH. No difference was found between TH and MH patients for all the outcomes evaluated. Conclusion Achieving transmural healing in pediatric CD is associated with better long-term outcomes, although the additional benefit compared to reaching MH alone does not appear significant. However, the persistence of inflammation is associated with worse outcomes in all patients.

P1217 The gut microbiota as a determinant in the development of post-surgical recurrence in Crohn`s disease

Abstract Background Crohn's disease (CD), is a chronic condition with a growing incidence in recent decades. Despite the development of new biologic therapies it is estimated that up to 70% of CD patients will require surgical intervention during their lifetime. However, surgery is not considered curative even in cases where a resection of all macroscopic involvement is performed, and the management of post-surgical recurrence remains a therapeutic challenge. Bacterial dysbiosis has been postulated as a precipitating factor in CD and may play a significant role in the development of post-surgical recurrence (PSR) of this condition. We prospectively studied the characteristics of bacterial diversity in patients with CD following ileocecal resection to identify the predictive value of intestinal microbiota in the onset of PSR. Methods We collected fecal and healthy and affected intestinal mucosal samples from 12 patients with CD who underwent surgery during the course of their disease. PSR was defined using a Rutgeerts index ≥i2b. The microbiota was assessed using 16S rRNA sequencing, and a correlation analysis was conducted between the intestinal microbiota and clinical variables of the patients. The study was conducted in accordance with the Helsinki Declaration, and all patients were recruited from among those undergoing scheduled colonoscopy for clinical indications at the Gastroenterology Unit of the University Clinical Hospital San Cecilio in Granada, Spain. Results In patients with CD and severe recurrence, mucosa-associated microbiota was characterized by a significant reduction in alpha and beta diversity compared to subjects in clinical remission. An enrichment of bacteria belonging to the phyla Bacillota and Pseudomonadota was observed, along with a reduction in Bacteroidota in subjects with PSR. We observed a negative correlation between the presence of E. coli and Shigella in patients in clinical remission and those actively undergoing treatment with biological therapy. Conclusion The recolonization of microbiota after ileocecal resection differs between patients with and without recurrence, with Fusobacteria and butyrate-producing bacteria being the most prominent contributors to driving PSR. The reduction in the abundance of short-chain fatty acid-producing bacteria and stimulators of anti-inflammatory cytokines like IL-10 could create a proinflammatory environment conducive to the development of PSR. These findings may provide valuable insights into the disease prognosis, allowing for the identification of patients at higher risk of recurrence and laying the groundwork for more targeted therapeutic approaches after surgery

Retrospective analysis of polyps detected in colonoscopy and investigation of the relationship with anemia

Aims: Patients with colonic polyps are generally asymptomatic. On the other hand, colon polyps are considered as colorectal cancer progenitors. In this study, we aimed to present the retrospective analysis of colon polyps detected in a gastroenterology unit within one year and the relationship between polyp features and anemia. Methods: Patients with colon polyps who applied to our center between January 2015- January 2016 and underwent colonoscopy were included in the study. Polyps were grouped and compared as 1,2,3 and ≥4 according to their number; as hyperplastic, tubular, tubulovillous and villous according to their histopathological type; as ≤6 mm, 7-10 mm and ≥11 mm according to their size; as proximal, distal and proximal+distal according to their location. Results: A total of 350 patients were recruited for the study, The median age of the study group was 60 years (54-65 years), of which 180 (51.4%) were male. The mean hemoglobin value was 12.82±1.90 g/dl. More than half of the patients (n=166, 52.5%) had single polyp. The most common type of polyp was tubular polyp (n=203, 55%). The majority of the polyps (63%) were smaller than 6 mm in size and the vast majority (47.2%) were located distally. When the polyp size and polyp types were compared, it was found that the incidence of tubulovillous pathology increased as the polyp size increased (p&amp;lt;0.001 for all comprasions). A positive, linear significant correlation was found between age and the number of polyps (r=0.209; p&amp;lt;0.001). There was a statistically significant difference between hemoglobin value according to polyp sizes (p&amp;lt;0.001). Conclusion: We demonstrated that the number of polyps increased with age, and the incidence of tubulovillous pathology and the depth of anemia increased as the size of the polyp increased.