Management Of Crohn Research Articles

Computerized tomography features acting as predictors for invasive therapy in the management of Crohn's disease-related spontaneous intra-abdominal abscess: experience from long-term follow-up.

Decision-making in the management of Crohn's disease (CD)-related spontaneous intra-abdominal abscess (IAA) is challenging. This study aims to reveal predictive factors for percutaneous drainage and/or surgery in the treatment of CD-related spontaneous IAA through long-term follow-up. Data were collected, including clinical manifestations, radiography and treatment strategies, in Chinese patients with CD-related IAA in a tertiary medical center. Univariate and Multivariate Cox analysis were conducted to identify predictors for invasive therapy. Altogether, 48 CD patients were identified as having IAA through enhanced CT scans. The median follow-up time was 45.0 (23.3, 58.0) months. 23 (47.9%) patients underwent conservative medical treatment, and 25 (52.1%) patients underwent percutaneous drainage and/or surgical intervention (invasive treatment group). The 1-, 2-, and 5-year overall survival rates without invasive treatment were 75.0%, 56.1%, and 46.1%, respectively. On univariate Cox analysis, the computerized tomography (CT) features including nonperienteric abscess (HR: 4.22, 95% CI: 1.81-9.86, p = 0.001), max abscess diameter (HR: 1.01, 95% CI: 1.00-1.02, p<0.001) and width of sinus (HR: 1.27, 95% CI: 1.10-1.46, p = 0.001) were significantly associated with invasive treatment. Nonperienteric abscess was significantly associated with invasive treatment on multivariate Cox analysis (HR: 3.11, 95% CI: 1.25-7.71, p = 0.015). A score model was built by width of sinus, location of abscess and max abscess diameter to predict invasive treatment. The AUC of ROC, sensitivity and specificity were 0.892, 80.0% and 90.9% respectively. More than half of CD-related IAA patients needed invasive therapy within 5-year follow-up. The CT features including nonperienteric abscess, larger maximum abscess diameter and width of sinus suggested a more aggressive approach to invasive treatment.

Management of Crohn's disease in Taiwan: consensus guideline of the Taiwan Society of Inflammatory Bowel Disease updated in 2023.

Crohn's disease (CD) is a chronic, fluctuating inflammatory condition that primarily affects the gastrointestinal tract. Although the incidence of CD in Taiwan is lower than that in Western countries, the severity of CD presentation appears to be similar between Asia and the West. This observation indicates the urgency for devising revised guidelines tailored to the unique reimbursement system, and patient requirements in Taiwan. The core objectives of these updated guidelines include the updated treatment choices and the integration of the treat-to-target strategy into CD management, promoting the achievement of deep remission to mitigate complications and enhance the overall quality of life. Given the diversity in disease prevalence, severity, insurance policies, and access to medical treatments in Taiwan, a customized approach is imperative for formulating these guidelines. Such tailored strategies ensure that international standards are not only adapted but also optimized to local contexts. Since the inception of its initial guidelines in 2017, the Taiwan Society of Inflammatory Bowel Disease (TSIBD) has acknowledged the importance of continuous revisions for incorporating new therapeutic options and evolving disease management practices. The latest update leverages international standards and recent research findings focused on practical implementation within the Taiwanese healthcare system.

Surgical outcomes in ileal Crohn's disease complicated by ileosigmoid fistula.

The management of Crohn's disease (CD) complicated by ileosigmoid fistula (ISF) remains a challenge, and Australian outcomes have not previously been reported. A retrospective review of a tertiary colorectal inflammatory bowel disease unit, across public and private sites, from 2005 to 2023 to identify adult patients having undergone operative management of ISF. Twenty-nine patients underwent surgery for ISF in the study period. Seventeen were male and the median age was 40 years. The pre-operative diagnosis of ISF was made in 76%, and patients were more likely to undergo resectional surgery if the pre-operative diagnosis was made endoscopically. Sixty-nine percent of cases were performed electively, with 76% completed laparoscopically with an 18.5% conversion rate to an open approach. The ISF was oversewn in three patients, repaired primarily in 14 patients, managed with segmental wedge resection in eight patients and resected via an anterior resection in four patients. The rate of stoma formation at the index procedure was 20.7% overall and 22% in patients being acutely managed with steroids. Emergent cases were more likely to be defunctioned with a stoma. Morbidity was 17.2% with a single anastomotic leak. ISF in CD remains difficult to diagnose pre-operatively, but can be safely managed laparoscopically without formal resection, and with limited use of diverting stoma formation. The specific surgical approach to the sigmoid in ISF is difficult to pre-determine and often requires decisions to be made intra-operatively.

The role of the fecal microbiota in inflammatory bowel disease.

The understanding of the potential role of the microbiota in the pathogenesis of inflammatory bowel disease (IBD) is ever-evolving. Traditionally, the management of IBD has involved medical therapy and/or surgical intervention. IBD can be characterized by gut microbiome alterations through various pathological processes. Various studies delve into nontraditional methods such as probiotics and fecal microbiota transplant and their potential therapeutic effects. Fecal microbiota transplant involves the delivery of a balanced composition of gut microorganisms into an affected patient via multiple possible routes and methods, while probiotics consist of live microorganisms given via the oral route. At present, neither method is considered first-line treatment, however, fecal microbiota transplant has shown potential success in inducing and maintaining remission in ulcerative colitis. In a study by Kruis and colleagues, Escherichia coli Nissle 1917 was considered to be equivalent to mesalamine in mild ulcerative colitis. Alteration of the microbiome in the management of Crohn's disease is less well defined. Furthermore, variation in the clinical usefulness of 5-aminosalicylic acid medication has been attributed, in part, to its acetylation and inactivation by gut microbes. In summary, our understanding of the microbiome's role is continually advancing, with the possibility of paving the way for personalized medicine based on the microbiome.

Biologics in Focus: A Comprehensive Review of Current Biological and Small Molecules Therapies for Crohn’s Disease in the United Arab Emirates (UAE)

Introduction: The management of Crohn’s disease (CD) in the Middle East, like in other parts of the world, is rapidly evolving with the introduction of novel advanced medical and biological therapies. In the United Arab Emirates (UAE), several biological therapies are used to achieve remission in severe and resistant cases of CD. We carried out a literature search to analyze the effectiveness and safety of biologic treatments currently licensed in the UAE. Methods: We searched the PubMed, Embase and Cochrane library databases from inception to January 2020 to identify relevant studies. Search terms were generated using established treatment guidelines for CD. We also manually searched the bibliographies of relevant literature to obtain additional papers. Results: Biologic and small molecule agents for CD include four core drug classes: anti-tumor necrosis factor-α agents (TNF-α), integrin receptor antagonists, Janus kinase (JAK) inhibitors and IL-12/IL-23 antagonists. All drug classes showed good efficacy and safety in managing patients with CD. Some drug classes had distinguishable side effect profiles. This included an increased lymphoma and tuberculous risk for TNF-α and integrin receptor antagonists. Many trials supported the effectiveness of these licensed drugs. Biologic agent intolerance was common; one-third of patients receiving TNF-α treatment will develop intolerance to that specific drug. Conclusions: Advanced medical therapies licensed in the UAE have proven to be safe and efficacious. Additional research is required to evaluate the safety and efficacy of newer biologics and biosimilars.

2023 Chinese national clinical practice guideline on diagnosis and management of Crohn's disease.

2023 Chinese national clinical practice guideline on diagnosis and management of Crohn's disease.

Effectiveness of combined therapy with Infliximab and Azathioprine in the management of Crohn's disease: A systematic review according to PRISMA guidelines

Objetivo: Evaluar la eficacia de la terapia combinada con Infliximab y Azatioprina en la enfermedad de Crohn. Metodología: Se realizó una revisión sistemática siguiendo las directrices PRISMA. Se buscaron 16 artículos en PubMed, Google Scholar y SciELO, aplicando criterios de inclusión y exclusión, complementados con 3 mediante búsqueda manual. Resultados: La terapia combinada demostró beneficios significativos en 19 estudios seleccionados. En el ensayo SONIC, superó a la monoterapia, logrando mayor remisión clínica (56.8% vs. 44.4%) y cicatrización de mucosa (43.9% vs. 30.1%) a la semana 26. Redujo la inmunogenicidad del Infliximab, elevando concentraciones séricas (3.5 mg/mL vs. 1.6 mg/mL). Otros estudios respaldaron la eficacia y seguridad, mostrando menor fracaso clínico, riesgo reducido de hospitalización o cirugía, y mejoras en la calidad de vida. Discusión: La investigación destaca la eficacia de la terapia combinada, respaldada por múltiples estudios, incluyendo SONIC. Se enfatiza su impacto a largo plazo, reduciendo eventos adversos y complicaciones. La gestión individualizada y la seguridad general son esenciales al considerar esta estrategia terapéutica en el manejo de la enfermedad de Crohn. La reducción de la inmunogenicidad y la sostenibilidad de la respuesta terapéutica refuerzan la posición de la terapia combinada como opción preferida, proporcionando valiosa perspectiva para futuras investigaciones.

ECCO Guidelines on Therapeutics in Crohn's Disease: Surgical Treatment.

This article is the second in a series of two publications on the European Crohn's and Colitis Organisation [ECCO] evidence-based consensus on the management of Crohn's disease. The first article covers medical management; the present article addresses surgical management, including preoperative aspects and drug management before surgery. It also provides technical advice for a variety of common clinical situations. Both articles together represent the evidence-based recommendations of the ECCO for Crohn's disease and an update of prior ECCO guidelines.

Updates in the Management of Crohn's Disease

Updates in the Management of Crohn's Disease

P518 Dietary and non-dietary predictors of treatment response to adalimumab in anti-TNFα-naïve adults with Crohn’s disease

Abstract Background Biologics, such as anti-TNFα agents, are commonly used in the management of Crohn’s disease (CD). A significant proportion of patients do not respond to treatment, necessitating the exploration of pre-treatment predictors of treatment response. Methods Anti-TNFα-naïve adults with active CD (Crohn’s Disease Activity Index; CDAI≥150) participating in an RCT (NCT04859088) were randomised to receive adalimumab monotherapy or adalimumab combination therapy with 50% partial enteral nutrition (PEN). Treatment response (CDAI&amp;lt;150) was assessed after 6 weeks, baseline diet was assessed with EPIC-Norfolk FFQ, alternative Mediterranean diet scores (aMED), and principal component analysis (PCA) with orthogonal (varimax) rotation was used to identify data-derived dietary patterns. Baseline predictors evaluated included PEN use, steroid use, immunomodulator use, age, disease duration, CDAI, C-Reactive protein (CRP), albumin, haemoglobin, Scottish Index of Multiple Deprivation (SIMD) score, adherence to dietary patterns identified, aMED score, smoking status, alcohol consumption, physical activity level, body mass index (BMI), fat mass (kg/m2), fat-free mass (kg/m2), and handgrip strength. Differential analysis between responders and non-responders was carried out with general linear model or chi-square test when appropriate. Random forest model with recursive feature elimination (RF-RFE) was used to identify the most predictive factors of treatment response. Results Of 42 participants recruited to the study, 62% (26) responded to treatment. PCA revealed four dietary patterns (Figure 1A). Responders to adalimumab were younger (mean (SD): 36.0 (17.1) vs 50.8 (10.0), P=0.004), had lower baseline CDAI (mean (SD): 228 (62) vs 286 (78), P=0.018), higher CRP (14.5 (19.2) vs 4.6 (5.8) mg/L, P=0.036), were less likely to smoke (31% (5 of 16) vs 8% (2 of 26), and less likely to adhere to a dietary pattern characterised by high consumption of animal products (PC2) (P=0.030). Adherence to PC2 also correlated positively with age (r=0.327, P=0.035). The RF-RFE algorithm highlighted young age, low baseline CDAI and low PC2 adherence as key factors (Sensitivity: 77%, Specificity: 63%, PPV: 77%, NPV: 63%, OOB: 29%, P=0.012) (Figure 1B). Interestingly, exclusion of dietary factors improved diagnostic performance of the model (Sensitivity: 77%, Specificity: 75%, PPV: 83%, NPV: 67%, OOB: 24%, P=0.003) (Figure 1C), indicating potential interactions by other factors like age. Conclusion Young age, non-smoking, low baseline CDAI and elevated CRP predict adalimumab response in anti-TNFα-naïve adults. While dietary factors may also play a role, their impact seems confounded by other non-dietary factors. Further research is warranted in this area.

P554 Assessment of corticosteroid prescribing trends and appropriateness for management of Inflammatory Bowel Disease in a secondary care centre in New Zealand

Abstract Background Corticosteroids are commonly used for inducing remission in Inflammatory Bowel Disease (IBD) but are considered ineffective for long-term maintenance1. Evaluating the appropriateness of corticosteroid usage is crucial in optimising IBD management given their common adverse effects. Methods This study aimed to assess the appropriateness of corticosteroid usage for patients with IBD in a secondary centre in New Zealand, using international standards2,3. A retrospective records’ audit was conducted in 2020, encompassing all IBD patients encountered in Nelson Hospital from 2005 to 2020. Ethical approval was obtained beforehand. The primary outcome measure evaluated was the appropriateness of corticosteroid prescriptions, in accordance with established international standards (UK2 and ECCO3). Key criteria included dosage (strength and/or duration), patient counselling on side effects and alternatives. Results We studied a group of 613 IBD patients with an average age of 55, comprising 311 males and 302 females. Crohn's Disease was the predominant diagnosis (297 cases), followed by Ulcerative Colitis (252 cases) and Indeterminate Colitis (64 cases). Of the patients included in the audit, 51.4% (315 out of 613) were prescribed steroids during the 15-year study period. Of the 315 total prescriptions, 52.1% (163) were considered inappropriate. Among these, 28.6% (90) were excessively long courses, 23.5% (74) were due to under-dosing or multiple short courses, and 6.3% (20) were because of corticosteroid dependence. Out of a total of 315 prescriptions, Gastroenterologists issued 36.5% (115), while General Practitioners were responsible for 24.1% (76). The remaining prescriptions were divided among General Surgery (9%), General Medicine (6%), and the Emergency Department (5%). Conclusion Corticosteroid prescribing for IBD patients in this secondary centre in New Zealand deviated from international guidelines, primarily in terms of dose and duration. It’s vital to adopt accessible, customized guidelines and enhance quality measures to ensure IBD patients receive evidence-based corticosteroid treatment when needed. References 1-Ford AC, Bernstein CN, Khan KJ, et al. Glucocorticosteroid therapy in inflammatory bowel disease: systematic review and meta-analysis. Am J Gastroenterol 2011;106:590-599; quiz 600. 2- Mowat C, Cole A, Windsor A, et al. Guidelines for the management of inflammatory bowel disease in adults. Gut. 2011;60:571-607. 3-Gomollon F, Dignass A, Annese V, et al. 3rd European evidencebased consensus on the diagnosis and management of Crohn’s disease 2016: part 1: diagnosis and medical management. J CrohnsColitis. 2017;11:3-25

DOP23 The role of histology for the prediction of clinical relapse in Crohn’s Disease: A substudy of the STORI cohort

Abstract Background Deep remission has become the target in the management of Crohn’s disease (CD). The role of histology in the management of CD has not yet been established. The aim of this work was to study the impact of histological inflammation on the risk of clinical relapse in patients with CD in clinical and endoscopic remission and to study the correlation between histology and endoscopic scores and biomarkers. Methods All patients included in STORI (1) were eligible for inclusion. Fecal calproptectin and colonoscopy with CDEIS calculation were performed at inclusion. Two biopsies, taken either from the most inflammed macroscopic area or from an area with previous inflammation in case of mucosal healing (MH) were prospectively performed. MH was defined by the absence of ulcers. Different histological scores were calculated by 2 independent pathologists: Robart, Geboes, modified Geboes, Nancy, and DCA-IBD scores. Histological remission was defined by Nancy=0 ; Geboes ≤2 ; modified Geboes of grade 0 ; Robarts ≤3, IBD-DCA of C≤1 and A=0. Clinical relapse was prospectively evaluated in the STORI trial as CDAI&amp;gt;250 or CDAI between 150 and 250 with an increase of 70 points during 2 successive weeks compared to the inclusion visit. (1) Louis E et al .Gastroenterology 2012 Results Eighty biopsies (22 ileal and 58 colonic) were available from 76/115 patients included in STORI. Among the 45 patients with MH, 30 had colonic biopsies, 11 had ileal biopsies and 4 had biopsies in both locations. Among colonic biopsies 68% had histological remission according to Nancy and modified Geboes scores, 65% according to DCA-IBD and Geboes scores and 71% according to Robarts score. Among ileal biopsies 53% had histological remission according to Nancy score, 47% according to Modified Geboes, Geboes and DCA-IBD scores, and 67% according to the Robarts score. Thirty-five patients (46%) experienced a clinical relapse during the follow-up including 16/45 (36%) and 19/31 (61%) in the group with MH and without MH respectively. Histological characteristics and histological scores were not predictive of clinical relapse. In the total cohort (n=76), the CDEIS score was correlated to Nancy (p&amp;lt;0,001, r=0,43), Geboes (p&amp;lt;0,001, r=0,47) and Robarts (p&amp;lt;0,001, r=0,45) scores. Fecal calprotectin was correlated to Nancy (p&amp;lt;0,001, r=0,48), Geboes (p&amp;lt;0,001, r=0,45) and Robarts (p&amp;lt;0,001, r=0,46) scores. The histological scores of Nancy, Robarts and Geboes were highly correlated (p&amp;lt;0,0001 ; r &amp;gt; 0,9). Conclusion Although correlated with endoscopy and biomarkers, histology was not predictive of clinical relapse in CD patients in clinical and endoscopic remission. These findings do not support the use of histology to predict clinical relapse in CD in clinical practice.

Understanding the role of the primary care physician in the management of patients with Crohn’s perianal fistulas

ABSTRACT Objectives To understand the role of primary care physicians (PCPs) in the recognition, diagnosis, and management of Crohn’s perianal fistulas (CPF) and their referral patterns and treatment expectations. Methods This survey-based study was conducted between September 2020 and October 2020. US-based PCPs managing at least one patient with Crohn’s disease per week were included. Participants were presented with two case vignettes relevant to primary care practice; Case Vignette 1 comprised three parts and focused on initial CPF presentation and progression to partial response; Case Vignette 2 focused on recurrent CPF. Survey questions elicited the physician’s clinical approach to each case. Data were presented as descriptive statistics. Results Overall, 151 PCPs (median 23 years in practice) who saw about three patients per month with new/existing CPF responded. For Case Vignette 1, upon identification of a fistulous tract, 89% of respondents would refer the patient, mostly to a colorectal surgeon or gastroenterologist. Most PCPs (69%) would begin the patient on medication; 46% would conduct a diagnostic/imaging study. Treatment expectations after referral varied: 55% of respondents believed surgeons would place a seton or use one prior to surgery; 23% expected medical management only; 23% were unsure. Case Vignette 2 revealed that 98% of PCPs preferred to be involved in patient care after referral; however, only 49% were. Of these, 76% considered reinforcing patient treatment adherence as their primary role. While 80% of PCPs were at least moderately satisfied with communication and care coordination with multidisciplinary teams, 52% considered lack of access to specialists as at least a moderate barrier to multidisciplinary team management. Conclusion PCPs want more involvement in multidisciplinary management of patients with CPF. Continuing education providing PCPs with up-to-date information on diagnostic modalities, treatment options, early diagnosis, the role of PCPs within a multidisciplinary team, and effective initial CPF care is required.

Patient and Caregiver Perspectives on Their Experiences With Crohn's Perianal Fistulas.

Little is known about patients' perception of care and management of Crohn's perianal fistulas (CPF). This study was conducted to understand US patient and caregiver attitudes and challenges to CPF care. Patients with CPF and caregivers of patients with CPF completed a 36-question survey about their perceptions and challenges regarding the diagnosis, treatment, and overall management of CPF. Patients/caregivers were recruited via online Crohn's and fistula support group websites and forums and via their gastroenterologists (GEs) and surgeons from October 2020 through January 2021. The survey was completed by 96 patients and 54 caregivers. Respondents reported over 60% and 14%-23% of CPF were diagnosed and treated by a GE or surgeon, respectively. Nearly all patients/caregivers wanted to be involved in treatment decision-making with their physicians (81%). While the majority of patients/caregivers were satisfied with their quality of care (65%) and access to care (67%), racial disparities exist and there is room for improvement. A smaller proportion of non-White versus White patients/caregivers reported satisfaction with care quality (39% vs 72%, respectively) and access to care (57% vs 69%, respectively). Half of non-White patient/caregivers (50%) versus 69% of White patient/caregivers knew where to access CPF information. Most patients/caregivers (69%) stated that they would benefit from more information on managing day-to-day CPF symptoms. Significant barriers perceived by patients/caregivers to receiving optimal CPF care included lack of effective treatments (69%) and lack of access to specialist care (68%). Improvements in multidisciplinary CPF care are required to optimize treatment.

Management of Crohn’s Disease and Ulcerative Colitis Flare, Possibly Induced by Nivolumab Therapy: Two Cases and Review of The Literature

Management of Crohn’s Disease and Ulcerative Colitis Flare, Possibly Induced by Nivolumab Therapy: Two Cases and Review of The Literature

Controversies in the management of anti-TNF therapy in patients with Crohn’s disease: a Delphi consensus

BackgroundDespite research, there are still controversial areas in the management of Crohn’s disease (CD).ObjectiveTo establish practical recommendations on using anti-tumour necrosis factor (TNF) drugs in patients with moderate-to-severe CD.MethodsClinical controversies...

Stricture dilation via balloon-assisted endoscopy in Crohn's disease: approach and intraprocedural outcomes with the single-balloon and double-balloon systems.

Despite recent emerging literature involving the utility of endoscopic balloon dilation (EBD) of strictures via balloon-assisted endoscopy (BAE), specifically regarding the management of Crohn's disease (CD), the optimal clinical approach with balloon systems has been largely neglected in academic literature. This study assesses the intra-procedural success and safety of EBD via BAE for small bowel CD strictures while detailing our clinical approach and technique. Secondarily, we compare the single-balloon endoscope (SBE) and double-balloon endoscope (DBE) systems for EBD-related outcomes. Retrospective consecutive patient cohort analysis. We retrospectively assessed a consecutive small bowel CD patient cohort undergoing BAE at the University of Alberta Hospital endoscopy unit from 2013 to 2020. The primary endpoint discerned the safety and immediate success rate of EBD during endoscopy, and comparisons of the dilation parameters and efficacy of SBE versus DBE were assessed as secondary outcomes. During the study period, 87 patients (44 male) with a mean age of 56 ± 14.7 years underwent 179 endoscopic procedures (92 DBE and 87 SBE). Of 358 strictures encountered, 320 (89.4%) were successfully dilated and traversed. The mean maximum dilation diameter was 15.76 ± 2.10 mm. There were no perforations or major adverse events. EBD via BAE is a safe procedure in small bowel CD with a high intraprocedural success rate. Overall, SBE had a higher success rate in traversing strictures before and after dilation using our technique. This analysis is limited by the retrospective nature of our study and must be balanced against the inherent benefits of the DBE system.

The impact of proactive versus reactive drug monitoring of infliximab on treatment outcomes in patients with crohn’s disease

Background Therapeutic drug monitoring (TDM) plays a crucial role in the management of Crohn’s disease (CD) patients receiving infliximab (IFX). While reactive TDM has been more commonly utilized previously, recent research suggests that proactive TDM may offer greater benefits for patients. Objective To compare treatment outcomes among patients receiving different monitoring modalities of IFX. Methods This was a retrospective cohort study that enrolled 142 CD patients who initiated IFX therapy at the First Affiliated Hospital of Nanjing Medical University from January 2014 to June 2021. The patients were divided into a reactive (n = 43) and proactive (n = 99) group. The outcome measures included sustained clinical response and remission rates, biological remission rates, endoscopic response and remission rates achieved in both groups at weeks 30 and 54. The incidence of adverse events (AEs), changes in IFX trough concentrations (TCs) and treatment adjustments within 54 weeks were also evaluated. Results Kaplan-Meier analysis demonstrated that the proactive group exhibited significantly higher cumulative probabilities of sustained clinical response, sustained clinical remission, and endoscopic response by Week 54. Compared to the reactive group, patients in the proactive group achieved significantly reduced rates of AEs-related hospitalization and surgery. After adjusting treatment strategies, the median concentration and the proportion of patients achieved an effective therapeutic concentration (TC > 3 μg/mL) at Week 54 was both significantly higher in the proactive group. Conclusions Proactive TDM of IFX plays a more crucial role in timely adjustment of treatment strategies and maintenance of effective concentrations, thereby contributing to the outcomes for CD patients.

Intestinal ultrasound score predicts therapeutic outcomes of infliximab in pediatric patients with Crohn’s disease

Background and aims Objective evaluation of treatment response is critical in the management of Crohn’s disease (CD). Compared with endoscopy, intestinal ultrasound (IUS) is non-invasive and well-tolerated. This study is aimed to assess the predictive value of IUS score for treatment response in pediatric CD patients. Methods We conducted a retrospective study in pediatric CD patients who underwent endoscopy and IUS at start of infliximab treatment [T0] and after 22–38 weeks [T1] between February 2021 and January 2023. Pediatric Crohn’s Disease Activity Index (PCDAI), biochemical parameters, the Simple Endoscopic Score for Crohn’s disease (SES-CD) and IUS parameters were collected at two timepoints. IUS scores were assessed by International Bowel Ultrasound Segment Activity Score (IBUS-SAS). Results Thirty patients were included, with 53.3% reaching endoscopic response and 43.3% endoscopic remission. After infliximab treatment, IBUS-SAS (58.5 ± 24.2 vs 34.4 ± 21.6, p = .0001) was significantly decreased. At T1, change in IBUS-SAS (−38.2 ± 22.0 vs −7.9 ± 24.1, p = .0015) were pronounced in patients with endoscopic response compared with endoscopic non-response. Significant correlation were observed between IBUS-SAS and SES-CD, PCDAI, C-reaction protein, erythrocyte sedimentation rate, hemoglobin, albumin. The most accurate cutoff values for predicting endoscopic response were 57.4% decrease of IBUS-SAS (AUROC: 0.862, p < .001). The optimal cut-off of IBUS-SAS to correlate endoscopic remission was 26.0 (AUROC: 0.686, p = .017). Conclusions The validated ultrasound-base score, IBUS-SAS is an effective index for monitoring endoscopic response to infliximab therapy in CD. IUS evaluation could guide treatment decision for pediatric CD.

Today and tomorrow: the use of biomarkers in inflammatory bowel disease

Biomarkers play important roles in clinical care for people with inflammatory bowel diseases (IBD). Biomarkers are also central to the development of new therapies and as endpoints in their evaluation.&#x0D; The recommendations from the STRIDE-II study emphasize the central role of clinical indices and biomarkers such as fecal calprotectin (FC) and C-reactive protein (CRP) in the management of Crohn’s disease (CD) and ulcerative colitis (UC).&#x0D; This review will focus on the established roles for FC and CRP, emerging roles for alternative and composite biomarkers, limitations of current biomarkers, and unmet needs in the field. This is an evolving area, with recent clinical practice guidelines from the American Gastroenterological Association in UC. In addition, updates are expected from the European Crohn’s and Colitis Organisation on their multi-society guideline for IBD monitoring.