Treatment of antibiotic refractory chronic pouchitis with JAK inhibitors and S1P receptor modulators: an ECCO CONFER Multicentre Case Series.

BACKGROUND AND AIMS: Data regarding effectiveness and safety of JAK inhibitors and S1P receptor modulators in antibiotic refractory chronic pouchitis (CARP) are lacking. METHODS: This ECCO-CONFER project retrospectively collected JAK inhibitors or S1P receptor modulators treatments for CARP with at least 3-months follow up. The outcomes included corticosteroid and antibiotics-free clinical response and remission at three and twelve months, trend in mPDAI, endoscopic PDAI, CRP and calprotectin. RESULTS: Seventeen treatments in 15 patients were collected. Previous pouchitis treatments included infliximab (5/15), adalimumab (4/15), vedolizumab (9/15), and ustekinumab (5/15). Pooling data on JAK inhibitors (8 tofacitinib, 1 filgotinib and 6 upadacitinib), after 3 months (T3), steroid and antibiotics-free clinical response was achieved in 53.3% (8/15), steroid and antibiotics-free clinical remission was achieved in 40% (6/15). Of the patients with at least 12 months of follow-up, steroid and antibiotics-free clinical response was achieved in 50% (3/6) and remission in one patient (16.7%), endoscopic response in 50% (3/6), endoscopic remission in 50% (3/6). Of the two ozanimod treatments at T3, steroid and antibiotics-free clinical response was achieved in one patient, without remission; both discontinued ozanimod before T12. No side effects reported. CONCLUSIONS: Small molecules may represent a suitable option for CARP refractory to multiple biologics, deserving further investigation.

Real-World Effectiveness of Vedolizumab vs Anti-TNF in Biologic-naïve Crohn's Disease Patients: A 2-year Propensity-score-adjusted Analysis from the VEDOIBD-Study.

BACKGROUND: The aim of this observational, real-world evidence, modified intention-to-treat (mITT) study based on prospectively collected data from the VEDOIBD registry was to compare the effectiveness of vedolizumab (VEDO) vs antitumor necrosis factor (anti-TNF) in biologic-naïve Crohn's disease (CD) patients. METHODS: Between 2017 and 2020, 557 CD patients starting therapy with VEDO or anti-TNF were consecutively enrolled in 45 IBD centers across Germany. Per study protocol, the analysis excluded biologic-experienced patients and those with a missing Harvey-Bradshaw Index score, resulting in a final sample of 327 biologic-naïve CD patients. Clinical remission was measured using the Harvey-Bradshaw Index at the end of induction therapy and after 1 and 2 years. Switching to a different therapy was considered an outcome failure. Propensity score adjustment with inverse probability of treatment weighting was used to correct for confounding. RESULTS: The effectiveness of both VEDO (n = 86) and anti-TNF (n = 241) was remarkably high for induction treatment, but VEDO performed significantly less well than anti-TNF (clinical remission: 56.3% vs 73.9%, P < .05). In contrast, clinical remission after 2 years was significantly better for VEDO compared with anti-TNF (74.2% vs 44.7%; P < .05; odds ratio, 0.45; 95% CI, 0.22-0.94). Remarkably, only 17% of patients switched from VEDO to another biologic vs 44% who received anti-TNF. CONCLUSIONS: The results of this prospective, 2-year, real-world evidence study suggest that the choice of VEDO led to higher remission rates after 2 years compared with anti-TNF. This could support the role of VEDO as a first-line biologic therapy in CD.

Evaluation of a downstaging, bidirectional version of the Montreal classification of Crohn's disease: Analysis of 5-year follow-up data from the prospective BioCrohn study.

OBJECTIVE: Under the assumption of irreversibility, the Montreal classification provides a unidirectional assessment of the complications and behaviour of Crohn's disease (CD) that does not allow for downstaging. We examined the use of a bidirectional Montreal classification system that can capture disease regression. DESIGN: From the BioCrohn Registry, an inception cohort of patients with CD for ≤12 months duration was defined and followed up for 5-years. Cumulative probabilities for developing complications were estimated using the Kaplan-Meier method. Potential associations of explanatory variables with disease progression were estimated with Cox regression. RESULTS: Among 393 incident CD patients (of whom 255 completed the entire follow-up), the 5-year cumulative probability of developing complications was 41.5% (15.6% and 25.9% for stricturing and penetrating complications respectively). Perianal disease (hazard ratio [95% confidence interval]: 8.45 [4.74-15.07]) and surgical resection of the intestine (2.71 [1.50-4.92]) in the very early phase of the disease were associated with a higher risk of developing a penetrating complication within the 5-year follow-up. The use of a bidirectional Montreal classification system which can account for disease regression demonstrated that 90% of patients exhibited inflammatory disease behaviour at 5 years, in contrast to 58%, if the hierarchical, unidirectional Montreal classification system was used. CONCLUSION: An additional bidirectional disease behaviour assessment capturing reversed or fully controlled complications may provide a more realistic appraisal of the complexity and unmet needs of patients treated with advanced therapies.

Real-world Comparative Effectiveness of Ustekinumab vs Anti-TNF in Crohn's Disease With Propensity Score Adjustment: Induction Phase Results From the Prospective, Observational RUN-CD Study.

BACKGROUND: In addition to randomized controlled trials (RCTs), real-world studies on the effectiveness of ustekinumab (UST) in Crohn's disease (CD) are required inasmuch as RCTs are usually confined to selected patients, which may not represent everyday clinical practice. Within the framework of the prospective real-world RUN-CD registry, a total of approximately 900 CD patients from 44 inflammatory bowel disease centers from all over Germany starting a new therapy with UST or other biologics were screened for a real-world evidence (RWE) comparison of CD patients with UST vs antitumor necrosis factor (TNF). METHODS: A total of 618 CD patients with a nonrandomized biological therapy were qualified for this induction phase effectiveness RUN-CD study of UST vs anti-TNF. To reduce selection bias in estimations of treatment effects, the propensity score with inverse probability of treatment weighting was implemented. The results were reported as odds ratio (OR) and 95% confidence interval (CI). RESULTS: A total of 339 UST and 279 anti-TNF patients were analyzed. The effectiveness of UST vs anti-TNF in terms of clinical remission (UST 65.4% vs anti-TNF 63.0%; OR, 1.11; 95% CI, 0.71-1.74) and steroid-free remission (UST 51.0% vs anti-TNF 53.8%; OR, 0.94; 95% CI, 0.60-1.47) was comparable at the end of induction therapy. Similar results were observed in the bio-naïve and bio-experienced UST vs anti-TNF groups. For both, the remission rates were higher in the bio-naïve than in the bio-experienced groups (P < .05). CONCLUSIONS: In this prospective, observational RUN-CD study, the RWE head-to-head comparison of UST vs anti-TNF showed similar induction effectiveness in both groups, remarkably higher than those found in prior RCTs.

The higher effectiveness outcome rates observed in patients treated with UST compared with pivotal studies in combination with its known favorable safety profile and an improved HRQoL support UST use as a first-line, advanced therapy in CD.

Early MOnitoring of REsponse (MORE) to Golimumab Therapy: Results of a Multicentre, Prospective Observational Trial.

BACKGROUND: The therapeutic goal of clinical remission in patients with moderate to severe ulcerative colitis (UC) is achieved after biological therapy only in 16-39%. Individualization of therapeutic intervention would benefit from prediction of early response. STUDY OBJECTIVE: The primary objective of our study was to assess golimumab (GLM) trough serum level of ≥2.5 µg/mL in combination with a reduction of faecal calprotectin (FC) of ≥50% at week 6 compared to baseline to predict clinical response at week 26 after regular GLM intake. METHODS: Patients with moderate to severe active UC and planned GLM treatment were recruited for a prospective, multicentre, observational study in Germany. Prediction of clinical response was assessed by FC and GLM trough level. Missing data were imputed as therapy failure according to the last observation carried forward method. RESULTS: Fifty nine patients have been enrolled. 54% of patients were anti-TNF naïve. Clinical response at week 6 was a significant predictor for achieving clinical response at week 26 (odds ratio [OR] 10.97, confidence interval [CI], 2.96-40.68; p < 0.001). Moreover, patients with a GLM trough level of ≥2.5 µg/mL and a ≥50% reduction of FC at week 6 had an OR of 5.33 (95% CI, 0.59-47.84) to achieve clinical response at week 26. CONCLUSION: Clinical response at week 6 is the best predictive marker for achieving clinical response at week 26. Consideration of significant reduction of FC and trough GLM serum levels could improve prediction of response.

Validation of the German Inflammatory Bowel Disease Fatigue (IBD-F) Questionnaire.

INTRODUCTION: Fatigue is a common symptom in patients with inflammatory bowel diseases (IBD). To date, there is no instrument to assess IBD-specific fatigue in German. The aim of this study was to translate the IBD Fatigue (IBD-F) scale and to test its psychometric properties in a German IBD population. METHODS: After completing the translation process, 20 IBD patients participated in a pilot testing phase. For further analyses, 180 IBD patients with fatigue answered the IBD-F (Sections I, II, III) and the IBD Questionnaire (IBDQ-D). Reliability was tested by using Cronbach's alpha and corrected item-total correlation. Exploratory factor analyses (EFA) were carried out. Spearman's correlation was calculated between the IBD-F and IBDQ-D . 78 patients could be included to calculate the test-retest reliability. RESULTS: The German version of the IBD-F shows high face and content validity. Internal consistency was excellent, with a Cronbach's alpha of 0.93-0.98. Corrected item-total correlations ranged from 0.51 to 0.89. The correlation between the IBD-F and the IBDQ-D was statistically significant for Section I (rs=-0.59; p<0.01) and Section II (rs=-0.76; p<0.01) of the IBD-F. The EFA identified one relevant factor for each section. Test-retest reliability was acceptable for Section I (intraclass correlation coefficient (ICC)=0.73) and Section II (ICC=0.84). CONCLUSION: The German version of the IBD-F is a reliable and valid tool to assess fatigue in IBD.

Clinical and surgical factors for successful stoma reversal in patients with Crohn's disease-results of a retrospective cohort study.

PURPOSE: Despite the wide range of medical and interventional therapy options available, some patients with Crohn's disease (CD) need an ileostomy or colostomy. The aim of this study was to identify clinical, surgical and drug-related predictors of successful stoma reversal in CD patients. METHODS: A retrospective medical record analysis of surgical department logs, hospital discharge letters and patient reports from outpatient departments was performed for all CD patients who underwent a first ostomy surgery. RESULTS: Our study analysed a total of 149 patients (76 women, 73 men, median age at first stoma of 34 years after a median CD duration of 9 years), with a median follow-up of 78.4 (IQR 88.6) months after first ostomy surgery. Of these patients, 73 (49%) underwent stoma reversal after a median of 11.7 months (IQR 15.7 months) of whom 17 (23.3%) needed a second stoma. In multivariant analysis, Montreal A1 classification (HR 2.07; 95% confidence interval 1.23-3.47; p = 0.006), a primary laparotomy (HR 2.30; 95% confidence interval 1.20-4.41; p = 0.012) and the absence of perianal/rectal CD activity (HR 3.00; 95% confidence interval 1.86-4.86; p < 0.001) emerged as independent predictors of a shorter time to stoma reversal. Introduction or switch of biological therapy after first stoma was not associated with successful reversal of the stoma (OR 4.6 95% confidence interval 1.45-14.66; p = 0.01). Laboratory parameters had no influence. CONCLUSION: Clinical and surgical features-rather than medication or laboratory findings-were found to be predictors of successful stoma reversal in CD patients. Future studies focusing on the definition of a Standard Operation Procedure for emergency and elective CD surgery are warranted.

Bowel preparation prior to colonoscopy with a new colonic irrigation device: Results of a prospective observational study.

Background and study aims The success of colonoscopy is mainly dependent on the effectiveness of prior bowel preparation (BP). Patients often consider BP to be the most burdensome part of colonoscopy, which might be a main barrier to the procedure. The aim of this study was to evaluate safety and effectiveness of colonic irrigation with a new colon hydrotherapy (CHT) device as an alternative to traditional oral BP. Patients and methods A prospective, non-randomized observational study was conducted to evaluate the quality of BP. A BP was considered effective if a score of 6 or better through the Boston Bowel Preparation Scale (BBPS) could be reached. Colonoscopy was performed immediately following colonic irrigation. For safety analysis, data on adverse events (AEs) were collected. Among the secondary outcomes, the BBPS assessed in each bowel segment and cecal intubation rate were analyzed. Results Twenty-eight consecutive patients (11 male [39.3%] and 17 [60.7 %] female) undergoing screening/surveillance or diagnostic colonoscopy were enrolled. Mean age was 54 ±â€Š12.4 years (range 19-80). The evaluated mean BBPS was 7.8 ±â€Š1.5. Twenty-five patients (89.3 %) had a BBPS score of 6 or above. Colonic irrigation was performed without any complications and no AEs were reported within 30 days. The cecal intubation rate was 100 %. Conclusions Colonic irrigation with a new CHT device is an effective and low-risk alternative to traditional oral preparation prior to colonoscopy.

Hereditary Colorectal Cancer Syndromes and Inflammatory Bowel Diseases: an ECCO CONFER Multicentre Case Series.

BACKGROUND: Hereditary colorectal cancer syndromes [HCCS] are rare polyposis or nonpolyposis syndromes with a higher risk of developing colorectal cancer [CRC]. Coexisting inflammatory bowel disease [IBD], including ulcerative colitis [UC] and Crohn's disease [CD], with HCCS is exceedingly rare and presumably increases the risk of early-onset CRC. METHODS: This was a multicentre case series performed as a part of the European Crohn's and Colitis Organisation [ECCO] Collaborative Network of Exceptionally Rare case reports [CONFER] project. RESULTS: This report includes 26 patients with IBD (10 UC, 15 CD, and one with IBD unclassified [IBD-U]) and concomitant HCCS. Among these 26 patients([median age 33 years, interquartile range [IQR] 20-44], 15 [57.7%] were males, 24 [92.3%] Caucasians, and two [7.7%] of Arab origin. HCCS was diagnosed before the IBD diagnosis in 11 patients [42.3%], after diagnosis of IBD in 11 patients [42.3%], and concurrently in four patients [15.4%]. Sixteen patients had Lynch syndrome, seven had familial adenomatous polyposis [FAP], two had MYH-associated polyposis [MAP], and one had attenuated FAP [AFAP]. The most frequent genetic mutations were those of APC [n = 7] and MLH1 [n = 7]. Overall, CRC developed in 38.5% of patients [n = 10]: in four patients [40%] after IBD diagnosis, in four [40%] patients before IBD diagnosis, and in two patients the two conditions were diagnosed simultaneously. Eighteen [69.2%] patients underwent colectomy or abdominal surgery: nine patients due to CRC diagnosis, five patients preventively due to the underlying HCCS, three due to the underlying HCCS and concomitant active IBD disease, and one patient because of active IBD disease. One patient died due to CRC. CONCLUSIONS: To date, this is the largest case series of patients with IBD and HCCS. The most frequent diagnosis of HCCS associated with IBD was Lynch syndrome. These data demonstrate the high malignancy rate and surgical intervention rate in this IBD cohort, despite the endoscopic surveillance. The optimal medical approach still needs to be addressed.

Surgery due to Inflammatory Bowel Disease During Pregnancy: Mothers and Offspring Outcomes From an ECCO Confer Multicentre Case Series [Scar Study].

AIMS: i] To evaluate the evolution of pregnancies and offspring after inflammatory bowel disease [IBD] surgery during pregnancy; and ii] to describe the indications, the surgical techniques, and the frequency of caesarean section concomitant with surgery. METHODS: Patients operated on due to IBD during pregnancy after 1998 were included. Participating clinicians were asked to review their databases to identify cases. Data on patients' demographics, IBD characteristics, medical treatments, IBD activity, pregnancy outcomes, surgery, delivery, and foetal and maternal outcomes, were recorded. RESULTS: In all, 44 IBD patients were included, of whom 75% had Crohn's disease; 18% of the surgeries were performed in the first trimester, 55% in the second, and 27% in the third trimester. One patient had complications during surgery, and 27% had postsurgical complications. No patient died. Of deliveries, 70% were carried out by caesarean section. There were 40 newborns alive. There were four miscarriages/stillbirths [one in the first, two in the second, and one in the third trimester]; two occurred during surgery, and another two occurred 2 weeks after surgery; 14% of the surgeries during the second trimester and 64% of those in the third trimester ended up with a simultaneous caesarean section or vaginal delivery. Of the 40 newborns, 61% were premature and 47% had low birth weight; 42% of newborns needed hospitalisation [25% in the intensive care unit]. CONCLUSIONS: IBD surgery during pregnancy remains an extremely serious situation. Therefore, surgical management should be performed in a multidisciplinary team, involving gastroenterologists, colorectal surgeons, obstetricians, and neonatal specialists.

[Inflammatory bowel disease during the COVID-19 pandemic: manifestations and management]. / Chronisch-entzündliche Darmerkrankungen in der COVID-Pandemie: Manifestationen und Management.

The COVID-19 pandemic is significantly affecting the lives of patients with inflammatory bowel disease (IBD). Those affected and their relatives have numerous questions about the risk of the disease, the course of a possible SARS-CoV-2 infection or the influence of CED-specific therapy on these. Many IBD patients also have additional questions about the safety and effectiveness of a vaccination against SARS-CoV-2. The aim of this review is to summarize the latest findings on COVID-19 and IBD, but also to discuss vaccine response (humoral/cellular), the influence of ongoing therapy on the vaccine response as well as the frequency of side effects and the importance of booster immunizations and to create an evidence-based basis for discussion with patients.

Clinical predictors for a complicated course of disease in an inception cohort of patients with ulcerative colitis: results from the prospective, observational EPICOL study.

PURPOSE: The clinical course of ulcerative colitis (UC) is highly heterogeneous, with 20 to 30% of patients experiencing chronic disease activity requiring immunosuppressive or biologic therapies. The aim of this study was to identify predictors for a complicated disease course in an inception cohort of patients with UC. METHODS: EPICOL was a prospective, observational, inception cohort (UC diagnosis, ≤ 6 months) study in 311 patients with UC who were naive to immunosuppressants (IS)/biologics. A complicated course of disease was defined as the need for IS and/or biologic treatment (here therapy with a TNF-α antagonist) and/or UC-related hospitalisation. Patients were followed up for 24 months. RESULTS: Of the 307 out of 311 participants (4 patients did not meet the inclusion criteria "confirmed diagnosis of active UC within the last 6 months" (n = 2) and "immunosuppressive-naïve" (n = 2), analysis population), 209 (68.1%) versus 98 (31.9%) had an uncomplicated versus a complicated disease course, respectively. In a multivariate regression analysis, prior use of corticosteroids and prior anaemia were associated with a significantly increased risk for a complicated disease course (2.3- and 1.9-fold increase, respectively; p < 0.001 and p = 0.002). Based on these parameters, a risk model for patient stratification was developed. CONCLUSION: Our study identifies anaemia and an early need for corticosteroids as predictors for a complicated course of disease in an inception cohort of patients with UC. By determining these parameters in routine clinical practice, our results may support the identification of patients who might benefit from early escalation of therapy.

SARS-CoV-2 vaccination does not induce relapses of patients with inflammatory bowel disease.

BACKGROUND: Vaccination against SARS-CoV-2 is a promising strategy to protect immunocompromised IBD patients from a severe course of COVID-19. As these patients were excluded from initial clinical vaccination trials, patients frequently express concerns regarding the safety of these vaccines, especially whether vaccination might trigger IBD flares ("hit-and-run-hypothesis"). METHODS: In order to assess the risk of an IBD flare after vaccination against SARS-CoV-2, an anonymous survey was performed at five German IBD centers and one patient organization (Deutsche Morbus Crohn/Colitis ulcerosa Vereinigung (DCCV) e.V.) in August and October 2021. RESULTS: The questionnaire was answered by 914 patients, 781 of whom reported a previous vaccination against SARS-CoV-2 (85.4%). Vaccination against SARS-CoV-2 was not associated with an increased risk of IBD flares (p=0.319) or unscheduled visits to the IBD physician (p=0.848). Furthermore, typical symptoms of an IBD flare including abdominal pain, increases in stool frequency, or rectal bleeding were not influenced by the vaccination. CONCLUSION: Vaccination against SARS-CoV-2 is safe in IBD patients. These results may help to reduce fears regarding the vaccination in IBD patients. Our results can help to reduce fears in IBD patients regarding the SARS-CoV-2 vaccine. A close communication between patients and physicians before and after the vaccination may be beneficial.

Inflammatory Bowel Disease and COVID-19: How Have Patients Coped So Far?

OBJECTIVE: Knowledge about SARS-CoV2 and coronavirus disease 2019 (COVID-19) is growing fast. Massive changes in the health care system imposed by the COVID-19 pandemic clearly impact the overall quality of medical care. In this survey, we aim to explore experiences and concerns of patients with inflammatory bowel disease (IBD) regarding the current pandemic. METHODS: A 40-item web-based questionnaire on disease-related experiences and concerns during the COVID-19 pandemic was made available to patients with IBD from 28 April 2020 to 31 July 2020. RESULTS: An increased risk of SARS-CoV2 infection was a concern for 56.7% of the 1199 patients (aged 41.3±12.8, women 77%, Crohn's disease 58.8%, ulcerative colitis 38.5%); 61.7% feared an increased risk of severe disease course of COVID-19. Effective preventive measures in either outpatient practices or hospitals were observed by 84.7% of the patients. Appointments with an IBD specialist were canceled in 38.7%, frequently on the patients' initiative. Telecommunication visits were considered an acceptable alternative to personal visits by 71.0%. Medication was reduced or paused in 6.9% because of the pandemic. A swab (SARS-CoV2-PCR) was done in 13.2% of the patients; only 3 patients (0.25%) were tested positive. CONCLUSION: The COVID-19 pandemic is a major concern of patients with IBD. However, the cumulative prevalence in our cohort is low. Patients at risk should be identified and counseled individually. When required because of the local COVID-19 situation, telecommunication visits and liberal prescription policies are advisable to reduce in-person contacts, while ensuring continuous therapy and maintaining communication with patients.

Diagnosis and Outcome of Extranodal Primary Intestinal Lymphoma in Inflammatory Bowel Disease: An ECCO CONFER Case Series.

BACKGROUND: There is a small but measurable increased risk of lymphoma in inflammatory bowel disease [IBD], with a suggestion that primary intestinal lymphoma [PIL] in IBD is associated with inflamed tissue and immunosuppressant use, mainly thiopurines. METHODS: This multicentre case series was supported by the European Crohn's and Colitis Organisation [ECCO] and performed as part of the Collaborative Network of Exceptionally Rare case reports [CONFER] project. Clinical data were recorded in a standardized case report form. RESULTS: Fifteen patients with intestinal lymphoma from eight centres were included (12 males, 11 patients with Crohn's disease [CD], mean age 47.8 [±16.4 SD, range 26-76] years at lymphoma diagnosis). Lymphoma type was diffuse large B-cell lymphoma [DLBCL] in eight, Hodgkin's disease in two, mucosa-associated lymphoid tissue [MALT] lymphoma in three, and single cases of immunoblastic lymphoma and indolent T-cell lymphoma. Lymphoma was located within the IBD-affected area in ten patients. At lymphoma diagnosis, nine patients had a history of azathioprine or anti-tumour necrosis factor [TNF] use. Lymphoma was diagnosed at a mean time of 10.4 [±7.07, 1-24] years after IBD diagnosis in 11 patients, prior to IBD in two and concurrently in two. Sustained remission over a median follow-up time of 6.5 [1.5-20] years was achieved in ten patients after treatment; five of them had started biological therapy [including anti-TNFs, vedolizumab and ustekinumab] for active CD subsequent to their PIL treatment. CONCLUSION: In this small case series, two-thirds of patients developed lymphoma in the IBD-affected area, and almost two-thirds had a history of thiopurine or anti-TNF use. Biologics were restarted without recurrence of lymphoma in half of the remitters.

Gastroenteropancreatic Neuroendocrine Neoplasms in Patients with Inflammatory Bowel Disease: An ECCO CONFER Multicentre Case Series.

BACKGROUND: Gastroenteropancreatic neuroendocrine neoplasms [GEP-NENs] have rarely been reported in association with inflammatory bowel diseases [IBDs]. METHODS: An ECCO COllaborative Network For Exceptionally Rare case reports project [ECCO-CONFER] collects cases of GEP-NENs diagnosed in patients with IBD. RESULTS: GEP-NEN was diagnosed in 100 IBD patients; 61% female, 55% Crohn's disease, median age 48 years (interquartile range [IQR] 38-59]). The most common location was the appendix [39%] followed by the colon [22%]. Comprehensive IBD-related data were available for 50 individuals with a median follow-up of 30 months [IQR 11-70] following NEN diagnosis. Median duration of IBD at NEN diagnosis was 84 months [IQR 10-151], and in 18% of cases NEN and IBD were diagnosed concomitantly. At diagnosis, 20/50 were stage-I [T1N0M0], and 28/50 were graded G1 [ki67 ≤2%]. Incidental diagnosis of NEN and concomitantly IBD diagnosis were associated with an earlier NEN stage [p = 0.01 and p = 0.02, respectively]. Exposure to immunomodulatory or biologic therapy was not associated with advanced NEN stage or grade. Primary GEP-NEN were more frequently found in the segment affected by IBD [62% vs 38%]. At the last follow-up data, 47/50 patients were alive, and only two deaths were related to NEN. CONCLUSIONS: In the largest case series to date, prognosis of patients with GEP-NEN and IBD seems favourable. Incidental NEN diagnosis correlates with an earlier NEN stage, and IBD-related therapies are probably independent of NEN stage and grade. The association of GEP-NEN location and the segment affected by IBD may suggest a possible role of inflammation in NEN tumorigenesis.

Hyperspectral Imaging: A New Intraoperative Tool for Pouch Assessment in Patients Undergoing Restorative Proctocolectomy.

INTRODUCTION: Restorative proctocolectomy with ileal pouch-anal anastomosis (IPAA) is a challenging operation. Especially the mobilization of the pouch into the pelvis can be complex. Adequate perfusion of the pouch is required for optimal healing and functioning. METHODS: With hyperspectral imaging (HSI) wavelengths between 500 and 1,000 nm can be analyzed in addition to visible light and by reflecting patterns. This intraoperative procedure is non-invasive, contact-free, and no contrast medium is needed. Fifteen patients undergoing IPAA were examined prospectively, and the pouch was evaluated by HSI intraoperatively. HSI was measured in standardized fashion at 4 defined locations of the J-pouch. Each measurement took about 10 s. The clinical postoperative course was assessed in all patients and correlated to the intraoperative HSI findings. RESULTS: Mean near-infrared perfusion and oxygenation of patients showed values ≥74% for all defined pouch areas, revealing good blood supply. Three minor anastomotic leaks were detected by standard pouchoscopy in the postoperative course, which could be treated conservatively with endosponge therapy. CONCLUSION: HSI values of perfusion and oxygenation of the IPAA were high. The leak rate is associated with redo procedures. This is reflected by the current literature and most likely related to the higher complexity of the revisional pouch operation. HSI has proved itself as a quick and effective new intraoperative tool to evaluate pouch perfusion objectively and quantitatively.

[Effects of SARS-CoV-2 Infection on Symptoms and Therapy of Inflammatory Bowel Disease]. / Auswirkungen einer SARS-CoV-2-Infektion auf Symptomatik und Therapie chronisch-entzündlicher Darmerkrankungen.

INTRODUCTION: The influence of a SARS-CoV-2 infection on inflammatory bowel disease (IBD) has not yet been well characterized and it is unclear whether this requires an adaptation of the immunosuppressive therapy. METHODS: A national register was established for the retrospective documentation of clinical parameters and changes in immunosuppressive therapy in SARS-CoV-2 infected IBD patients. RESULTS: In total, only 3 of 185 IBD patients (1.6 %) were tested for SARS-CoV-2 infection because of abdominal symptoms. In the course of COVID-19 disease, 43.5 % developed diarrhea, abdominal pain or hematochezia (risk of hospitalization with vs. without abdominal symptoms: 20.0 % vs. 10.6 %, p < 0.01). With active IBD at the time of SARS-CoV-2 detection, there was an increased risk of hospitalization (remission 11.2 %, active IBD 23.3 % p < 0.05). IBD-specific therapy remained unchanged in 115 patients (71.4 %); the most common change was an interruption of systemic therapy (16.2 %). DISCUSSION: New abdominal symptoms often appeared in SARS-CoV-2 infected IBD patients. However, these only rarely led to SARS-CoV-2 testing. A high IBD activity at the time of SARS-CoV-2 detection was associated with an increased risk of hospitalization.