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Inflammatory bowel disease (IBD), namely Ulcerative Colitis (UC) and Crohn's Disease (CD), is believed to be due to a dysregulation of the innate immune response. The complexity of the immune cascade offers both a challenge and an opportunity to researchers seeking out new treatments for IBD, as various points along the inflammatory pathways can be targeted for interruption. Sphinogosine-1-phosphate (S1P) is a phospholipid molecule with wide ranging biological effects caused by binding five known S1P receptor subtypes. Ozanimod is a small molecule drug that selectively targets S1P receptors 1 and 5 which play a crucial role in lymphocyte trafficking. In clinical trials for both UC and CD, it has been shown to induce a reversible lymphopenia which correlates with response to therapy. Reported adverse events include infection, anemia, and elevated liver enzymes. Rare instances of bradycardia, heart block, and macular edema were also reported. As a newly available therapy approved for UC patients, we aim to summarize ozanimod's novel mechanism of action, pre-clinical and clinical trial results, and to give context to this newly available drug that gastroenterologists may utilize in their treatment algorithm.

Background & Aims We aimed to compare safety and effectiveness of vedolizumab to tumor necrosis factor (TNF)-antagonist therapy in ulcerative colitis in routine practice. Methods A multicenter, retrospective, observational cohort study (May 2014 to December 2017) of ulcerative colitis patients treated with vedolizumab or TNF-antagonist therapy. Propensity score weighted comparisons for development of serious adverse events and achievement of clinical remission, steroid-free clinical remission, and steroid-free deep remission. A priori determined subgroup comparisons in TNF-antagonist–naive and –exposed patients, and for vedolizumab against infliximab and subcutaneous TNF-antagonists separately. Results A total of 722 (454 vedolizumab, 268 TNF antagonist) patients were included. Vedolizumab-treated patients were more likely to achieve clinical remission (hazard ratio [HR], 1.651; 95% confidence interval [CI], 1.229-2.217), steroid-free clinical remission (HR, 1.828; 95% CI, 1.135-2.944), and steroid-free deep remission (HR, 2.819; 95% CI, 1.496-5.310) than those treated with TNF antagonists. Results were consistent across subgroup analyses in TNF-antagonist–naive and −exposed patients, and for vedolizumab vs infliximab and vs subcutaneous TNF-antagonist agents separately. Overall, there were no statistically significant differences in the risk of serious adverse events (HR, 0.899; 95% CI, 0.502-1.612) or serious infections (HR, 1.235; 95% CI, 0.608-2.511) between vedolizumab-treated and TNF-antagonist−treated patients. However, in TNF-antagonist−naive patients, vedolizumab was less likely to be associated with serious adverse events than TNF antagonists (HR, 0.192; 95% CI, 0.049-0.754). Conclusions Treatment of ulcerative colitis with vedolizumab is associated with higher rates of remission than treatment with TNF-antagonist therapy in routine practice, and lower rates of serious adverse events in TNF-antagonist−naive patients.

Background To date, studies investigating the inflammatory bowel disease (IBD) patient experience with coronavirus disease 2019 (COVID-19) have consistently reported that the observed rate of COVID-19 within this population is similar to the general population. Limited research has suggested that corticosteroid use in the IBD population may be associated with worse COVID-19 outcomes, but it is still yet to be determined if specific IBD-related clinical factors are associated with worse outcomes. Our goal was to describe clinical COVID-19 outcomes for IBD patients and to identify the clinical factors that may be associated with worse outcomes. Methods In this retrospective study, we utilized the inpatient database within the largest hospital network in the New York City Metropolitan area to identify all IBD patients with confirmed COVID-19. Results Of 83 IBD/COVID-19 patients presenting to a hospital network emergency room, 56 were hospitalized. Overall, 19.6% of hospitalized IBD patients died, compared with 22.2% of all hospital system COVID-19 patients during the time period. There was no association between pre-admission corticosteroid use or biologic treatment with a severe course of COVID-19. Conclusions In contrast to some prior reports, we did not observe an association of pre-admission corticosteroid use and adverse outcomes. While the mortality rate was high for IBD/COVID-19 patients, it was not greater than that for hospitalized COVID-19 patients generally. Though our results are encouraging, we continue to support the recommendations of the leading gastrointestinal and IBD societies to regard our patients as “at risk”, and to observe caution in their care.

Gastroenterologists have long been spearheading the care of patients with various forms of liver disease. The diagnosis and management of liver disease has traditionally been a combination of clinical, laboratory, and imaging findings coupled with percutaneous and intravascular procedures with endoscopy largely limited to screening for and therapy of esophageal and gastric varices. As the applications of diagnostic and therapeutic endoscopic ultrasound (EUS) have evolved, it has found a particular niche within hepatology now coined endo-hepatology. Here we discuss several EUS-guided procedures such as liver biopsy, shear wave elastography, direct portal pressure measurement, paracentesis, as well as EUS-guided therapies for variceal hemorrhage.

Background Patients with Inflammatory bowel disease (IBD) remain highly concerned that either their disease or medications-namely, biologics-may increase the risk of severe coronavirus-2019 (COVID-19). We aimed to assess the safety of biologics in Inflammatory bowel disease (IBD) patients with COVID-19. Methods We systematically reviewed multiple databases to find relevant articles reporting the effect of biologics on "severe" COVID-19 in IBD patients. Those in the form of case series (> 10 patients), case-control, and cohort studies were included. Severe COVID-19 was defined as intensive care unit (ICU) admission, mechanical ventilation, and/or mortality. Pooled analysis with multivariate regression was performed. Results A total of 12 studies with 2681 patients were included. The proportion of females was (48.3%, 95% confidence interval (CI) 47.0-49.5%). The proportion of UC patients was (44.8%, 95% CI 41.0-48.5%). Overall, in IBD patients, the need for mechanical ventilation, intensive care unit (ICU) admission, and mortality was 5.1%, 6.1%, and 4.5%, respectively. Use of biologics did not show a moderating effect on mechanical ventilation (p = 0.68), ICU admission (p = 0.27), or mortality (p = 0.20). Conclusions Our findings advocate for the continued biologic therapy in IBD patients during the COVID-19 pandemic. Nevertheless, the incidence, severity, and outcomes related to COVID-19 in IBD patients' needs to be reassessed as data continues to emerge.

Background and Aims Rates of obesity are rising in patients with inflammatory bowel disease [IBD]. We conducted a US population-based study to determine the effects of obesity on outcomes in hospitalised patients with IBD. Methods We searched the Nationwide Readmissions Database 2016-2017 to identify all adult patients hospitalised for IBD, using ICD-10 codes. We compared obese (body mass index [BMI] ≥ 30) vs non-obese [BMI Results We identified 143 190 patients with IBD, of whom 9.1% were obese. Obesity was independently associated with higher all-cause readmission at 30 days {18% vs 13% (adjusted odds ratio [aOR] 1.16, p = 0.005)} and 90 days (29% vs 21% [aOR 1.27, p Conclusions Obesity in IBD appears to be associated with increased early readmission, characterised by a higher burden, despite the introduction of weight-based therapeutics. Prevention of obesity should be a focus in the treatment of IBD to decrease readmission and health care burden.

Background/Aims: Inflammatory bowel disease (IBD) involves chronic inflammation of the colon with ulcerative colitis (UC), and the colon and/or small intestine with Crohn’s disease (CD). Pneumatosis intestinalis (PI), characterized by compromise of the intestinal wall with gas-filled cysts, has rarely been reported with IBD. The presentation, best management and outcomes of PI with IBD are poorly defined. Methods: We conducted a search for PI in all abdominal computed tomography (CT) reports at 2 large tertiary care hospitals from January 1, 2010 to December 31, 2017, cross referenced to ICD codes for IBD. CT and chart review was performed to confirm PI and IBD respectively. A systematic review excluding case reports was performed for PI with IBD for comparison. Results: Of 5,990 patients with a CT abdomen report mentioning PI, we identified 11 cases of PI with IBD, 4 UC, 6 CD, and 1 indeterminate colitis. PI was limited to the small bowel in 5 patients, the right colon in 5, and small bowel and colonic in 1. All 3 mortalities had CD, small intestinal PI and portal/mesenteric venous gas. The systematic literature search identified 9 articles describing 58 patients with IBD and PI. These cases were mostly included in larger cohorts of PI patients without extractable data on presentation or outcomes in the IBD subpopulation. Conclusions: Ours appears to be the first reporting of presentations and outcomes, outside of case reports, for those with PI and IBD. The high mortality for those with CD and PI of the small bowel appears to define a group requiring more than supportive medical care. (Intest Res 2020;18:289- 296)

We evaluated the real-world effectiveness and safety of ustekinumab (UST) in patients with Crohn's disease (CD).This study used a retrospective, multicenter, multinational consortium of UST-treated CD patients. Data included patient demographics, disease phenotype, disease activity, treatment history, and concomitant medications. Cumulative rates of clinical, steroid-free, endoscopic, and radiographic remissions were assessed using time-to-event analysis, and clinical predictors were assessed by using multivariate Cox proportional hazard analyses. Serious infections and adverse events were defined as those requiring hospitalization or treatment discontinuation.A total of 1,113 patients (51.8% female, 90% prior antitumor necrosis factor exposure) were included, with a median follow-up of 386 days. Cumulative rates of clinical, steroid-free, endoscopic, and radiographic remissions at 12 months were 40%, 32%, 39%, and 30%, respectively. Biologic-naive patients achieved significantly higher rates of clinical and endoscopic remissions at 63% and 55%, respectively. On multivariable analyses, prior antitumor necrosis factor (hazard ratio, 0.72; 95% confidence interval, 0.49-0.99) and vedolizumab exposure (hazard ratio, 0.65; 95% confidence interval, 0.48-0.88) were independently associated with lower likelihoods of achieving endoscopic remission. In patients who experienced loss of remission, 77 of 102 (75%) underwent dose optimization, and 44 of 77 (57%) achieved clinical response. An additional 152 of 681 patients (22.3%) were dose-optimized because of primary nonresponse incomplete response to UST, of whom 40.1% (61 of 152) responded. Serious infections occurred in 3.4% of patients while other noninfectious adverse events (lymphoma [n = 1], arthralgia [n = 6], rash [n = 6], headache [n = 3], hepatitis [n = 3], hair loss [n = 3], neuropathy [n = 1], and vasculitis [n = 1]) occurred in 2.4% of patients.UST represents a safe and effective treatment option for CD, with 40% of patients from a highly refractory cohort achieving clinical remission by 12 months. The greatest treatment effect of UST was seen in biologic-naive patients, and dose escalation may recapture clinical response.

Background Infliximab is a weight-based prescription for multiple autoimmune diseases and is dispensed only in single-use, 100mg vials. We aim to compute the quantity of infliximab waste at our site and in an ideal world where weight-based prescribing practices are followed. We estimate hypothetical waste reduction and cost-savings if a smaller vial is dispensed. We also surveyed gastroenterologists to study prescription rounding practices for infliximab. Methods A pre-existing registry of 426 inflammatory bowel disease patients identified 112 individuals who had received a total of 1003 infliximab administrations from December 2013 to May 2019. We calculated infliximab wastage per administration for the real world and an ideal (weight-based) world. Analysis of potential waste reduction and cost-savings was computed with the hypothetical creation of 50 and 25mg vials. Infliximab-prescribing gastroenterologists completed an online survey, determining reasons for rounding of weight-based prescription, rounding practices, and biosimilar use. Results At our site, the total value of infliximab wasted was between $112738.08 and $243209.50. Utilizing 50 and 25mg vials would reduce this waste by 92.2% and 99.4%, respectively. If prescriber guidelines were followed precisely, the total value of waste was between $132781.08 and $286448.19. Utilizing 50 and 25mg vials would reduce waste by 50.39% and 75.34%, respectively. The physician survey revealed that 68.1% rounded doses while only 31.9% prescribed exact weight-based doses. Conclusions Infliximab-prescribing gastroenterologists considered reducing drug waste as a common reason in their rounding practices. Our analysis demonstrates significant waste reduction and cost-savings are possible with the introduction of 50 and 25mg vials.

BACKGROUND AND AIMS: Inflammatory bowel diseases (IBD) lead to high morbidity and unplanned healthcare utilization. We conducted a systematic review with meta-analysis to estimate the cumulative incidence of IBD-related (and all-cause) hospitalization in patients with ulcerative colitis (UC) and Crohn’s disease (CD). METHODS: Through a systematic review to September 3, 2019, we identified population-based inception cohort studies in patients with IBD that reported patient-level cumulative incidence of hospitalization at 1-, 3- and 5-years after diagnosis. Hospitalization risk was pooled using random-effects meta-analysis, and risk factors analyzed through mixed-effects meta-regression and qualitative synthesis. RESULTS: In patients with UC (6 cohorts), 1-, 3- and 5-year risk of UC-related hospitalization was 10.4% (95% CI, 8.2–13.2), 17.0% (95% CI, 14.0–20.4) and 21.5% (95% CI, 18.0–25.4), respectively, with considerable heterogeneity. In patients with CD (6 cohorts), 1-, 3- and 5-year risk of CD-related hospitalization was 29.3% (95% CI, 20.0–40.8), 38.5% (95% CI, 26.8–51.7) and 44.3% (95% CI, 32.7–56.5), respectively, with considerable heterogeneity. On meta-regression, steady decline in risk of hospitalization was observed in patients diagnosed in a more contemporary era. Younger age at onset (both UC and CD), extensive colitis (UC), ileal-dominant CD, perianal CD and penetrating and/or stricturing behavior (CD) and early need for corticosteroids and immunosuppressive therapy (both UC and CD) were associated with increased risk of hospitalization. CONCLUSION: Approximately one in five and one in two patients with UC and CD are hospitalized within 5 years of diagnosis, respectively. Population health management strategies are required to mitigate unplanned healthcare utilization.

Although still not approved at the federal level for medical or adult recreational use, cannabis has been approved in the United States (USA) by individual states for both of these purposes. A total of 15 states now regulate cannabis for adult use and 36 states for medical use. In more recent years, cannabis has gained popularity for the treatment of chronic conditions, inflammatory bowel disease (IBD) being one of them. However, the exact role of cannabis in the treatment of IBD remains uncertain. While cannabis may help in some instances with symptom management, it has not been proven to help with inflammation or to fundamentally correct underlying disease processes. Additionally, along with the perceived symptom benefits of cannabis come concerning issues like dosing inconsistencies, dependence, and cannabinoid hyperemesis syndrome. In this review article, we explore the nuanced relationship between cannabis and the treatment of IBD by summarizing the current research. We also use clinical vignettes to discuss the more practical considerations surrounding its use.

Background Ulcerative colitis (UC) flares often result in prolonged hospitalization and considerable mortality. Nevertheless, large-scale analyses evaluating the frequency and characteristics of hospital readmissions for UC remain limited. We aimed to examine these clinical outcomes in a nationwide cohort of patients hospitalized with UC. Methods We queried the 2017 Nationwide Readmission Database using ICD-10-CM codes to identify all adult patients admitted for UC. Outcomes including mortality, readmission rates, predictors of readmission and mortality, and healthcare usage were assessed. Multivariate analysis was used to adjust for potential confounders. Results From the 31,063 patients hospitalized for UC, 17.38% were readmitted within 30 days and 28.51% in 90 days. UC accounted for 28.17% and 29.82% of readmissions at 30 and 90 days, respectively. Compared to index admission, 30- and 90-day readmissions were characterized by significantly higher mortality (0.42% vs 1.99% and 1.65%, respectively), longer hospital stays (5.05 vs 6.62 and 6.04 days, respectively), and increased hospital cost ($49,999 vs $62,288 and $59,698, respectively) (all P < 0.01). Numerous factors, including chronic steroid use [hazard ratio (HR) 1.35] and opioid use (HR 1.6, were independently associated with increased 30-day readmission (P < 0.01). Numerous factors, including anxiety (HR 1.21) and venous thromboembolism (HR 5.39), were independently associated with increased 30-day mortality (P < 0.01). Conclusions In a large cohort of patients hospitalized for UC, we found that readmission is associated with higher mortality and more lengthy/costly admissions. Additionally, we found independent associations for readmission and mortality that may help identify patients who can benefit from close postdischarge follow-up.

Fatigue is a burdensome, multidimensional, and multifactorial symptom that is associated with a wide array of chronic illnesses, specifically occurring in nearly 50% of patients with inflammatory bowel disease (IBD). Although common, given its subjective nature, physicians often under-recognize and undertreat this debilitating symptom. There are multiple etiologies that can contribute to fatigue in patients with IBD, including disease activity, anemia, medications, psychosomatic symptoms, and alterations to the gut-brain axis. The management of fatigue in IBD can be challenging, as it is often times multifaceted. In this review, we summarize the available tools for the diagnosis and measurement of fatigue, discuss etiologies, and make recommendations for their management. We identify knowledge gaps for the workup and treatment of fatigue and propose an algorithm to aid physicians in the evaluation and management of fatigue in this unique population. However, future research is needed to address several areas of knowledge deficits and improve the management of fatigue in IBD.

Background Vedolizumab effectiveness estimates immediately after Food and Drug Administration (FDA) approval for ulcerative colitis (UC) and Crohn’s disease (CD) are limited by use in refractory populations. We aimed to compare treatment patterns and outcomes of vedolizumab in 2 time frames after FDA approval. Methods We used 2 data sets for time trend analysis, an academic multicenter vedolizumab consortium (VICTORY) and the Truven MarketScan database, and 2 time periods, May 2014–June 2015 (Era 1) and July 2015–June 2017 (Era 2). VICTORY cumulative 12-month clinical remission, corticosteroid-free remission, and mucosal healing rates, and Truven 12-month hospitalization and surgery rates, were compared between Eras 1 and 2 using time-to-event analyses. Results A total of 3661 vedolizumab-treated patients were included (n = 1087 VICTORY, n = 2574 Truven). In both cohorts, CD and UC patients treated during Era 2 were more likely to be biologic naïve. Compared with Era 1, Era 2 CD patients in the VICTORY consortium had higher rates of clinical remission (31% vs 40%, P = 0.03) and mucosal healing (42% vs 58%, P < 0.01). These trends were not observed for UC. In the Truven database, UC patients treated during Era 2 had lower rates of inflammatory bowel disease–related hospitalization (22.4% vs 9.6%, P < 0.001) and surgery (17.2% vs 9.4%, P = 0.008), which was not observed for CD. Conclusion Since FDA approval, remission and mucosal healing rates have increased for vedolizumab-treated CD patients, and vedolizumab-treated UC patients have had fewer hospitalizations and surgeries. This is likely due to differences between patient populations treated immediately after drug approval and those treated later., There has been a shift in utilization of vedolizumab in both Crohn’s disease and ulcerative colitis toward earlier use in the treatment sequencing algorithm. This shift in utilization is associated with improvements in response and disease outcomes.

Studies examining the mortality risk of inflammatory bowel disease (IBD) have yielded conflicting results, and most do not account for recent advancements made in the treatment of Crohn’s disease (CD) and ulcerative colitis (UC). We aim to assess the overall, premature, and cause-specific mortality in IBD patients over a 17-year time period and to evaluate any differences since the introduction of biologic therapy. A death record case–control study was performed to explore the odds of premature death (before age 65) and all-cause mortality among those with IBD. Cases consisted of IBD patients (1,129 with CD and 841 with UC) who died in New York State (NYS) from 1993 to 2010. Controls (n = 7880) were matched 4:1 on the basis of sex and zip code from those who died in NYS in the same time frame, without an IBD diagnosis. Compared with matched controls, those with CD (OR 1.56, CI 95% 1.34–1.82), but not UC (OR 0.72, CI 95% 0.59–0.89), were more likely to die prematurely. Both those with UC and CD were more likely to die from a gastrointestinal cause (CD OR 15.28, 95% CI 12.11–19.27; UC OR 14.02, 95% CI 10.76–18.26). There was no difference in the cause or age of death before and after the introduction of anti-TNF agents in those with IBD. Both CD and UC cases were more likely to die of a gastrointestinal etiology, and CD patients were more likely to die prematurely. There was no significant difference in the premature death, average age of death, and cause of death in this IBD population after the availability of anti-TNF therapy.

Patients with inflammatory bowel disease (IBD) have an increased risk of venous thrombotic events. The impact IBD has on arterial thrombosis is not well characterized. We aimed to identify the impact of IBD on hospital outcomes in patients admitted for acute ischemic stroke (AIS). This is a retrospective cohort study utilizing the 2017 National Inpatient Sample. We identified all adult patients with a principal diagnosis of AIS and compared those with a concurrent diagnosis of IBD to those without—subgrouped by ulcerative colitis (UC) and Crohn’s disease (CD). Outcomes were mortality and healthcare usage among IBD patients with AIS. Multivariate analysis was used to control for confounders. Analyses were performed using STATA. Five hundred twenty-four thousand and forty-five patients were admitted for AIS in 2017; of them 2200 (0.41%) had a concurrent diagnosis of IBD. The presence of IBD did not significantly affect in-hospital mortality (4.09% vs. 4.01%) among patients admitted for AIS [OR 1.07 95% CI: 0.65–1.76], with similar findings upon subgroup analysis of UC [OR 0.91, 95% CI: 0.39–2.09] and CD [OR 1.17, 95% CI: 0.62–2.19]. Mean hospital length of stay and charges/costs in AIS were similar irrespective of IBD. UC and CD do not appear to be associated with a higher risk of mortality or increased healthcare usage in AIS. AIS risk assessment in patients with IBD is important but should be done in a similar fashion to the general population.

Background & Aims This study compared the effectiveness of the Specific Carbohydrate Diet (SCD) to the Mediterranean diet (MD) as treatment for Crohn's disease (CD) with mild to moderate symptoms. Methods Adult patients with CD and with mild-to-moderate symptoms were randomly assigned 1:1 to consume the MD or SCD for 12 weeks. For the first 6 weeks, participants received prepared meals and snacks according to their assigned diet. After 6 weeks, participants were instructed to follow the diet independently. The primary outcome was symptomatic remission at week 6. Key secondary outcomes at week 6 included fecal calprotectin (FC) response (FC 50% among those with baseline FC >250 μg/g) and C-reactive protein (CRP) response (high-sensitivity CRP 50% reduction from baseline among those with high-sensitivity CRP >5 mg/L). Results The study randomized 194 patients, and 191 were included in the efficacy analyses. The percentage of participants who achieved symptomatic remission at week 6 was not superior with the SCD (SCD, 46.5%; MD, 43.5%; P = .77). FC response was achieved in 8 of 23 participants (34.8%) with the SCD and in 4 of 13 participants (30.8%) with the MD (P = .83). CRP response was achieved in 2 of 37 participants (5.4%) with the SCD and in 1 of 28 participants (3.6%) with the MD (P = .68). Conclusions The SCD was not superior to the MD to achieve symptomatic remission, FC response, and CRP response. CRP response was uncommon. Given these results, the greater ease of following the MD and other health benefits associated with the MD, the MD may be preferred to the SCD for most patients with CD with mild to moderate symptoms. ClinicalTrials.gov Identifier: NCT03058679

Healthcare maintenance in inflammatory bowel disease refers to the ongoing health promotion and preventive care that are implemented while managing patients with this chronic illness. In addition to consolidating information about ongoing conventional treatments, queries should involve the domains of complementary medicine and quality of life given the complex nature of this disease. These patients are particularly at increased risk for infection, malignancy, malnutrition, mental illness, and bone disease. Despite its importance, these services are not delivered at the same rates when compared to the general population. Uncertainty around “ownership” of the patient by the primary care provider, anxiety surrounding safety of health maintenance interventions such as vaccination among immunosuppressed populations, and reimbursement concerns contribute to this gap in care. This chapter aims to be a useful primer, for primary care physicians and gastroenterologists, on the value of healthcare maintenance interventions. In addition, we will highlight practical strategies to enable implementation into practice.

The Inflammatory Bowel Disease (IBD) population, which may require treatment with immunosuppressive medications, may be uniquely vulnerable to COVID-19 infection. In fact, there is some evidence these medications may inhibit the cytokine storm that is theorized to cause a rapid decline seen in COVID-19. In addition, the digestive symptoms of COVID-19 can be difficult to distinguish from the activation of IBD. We present an interesting case of a Crohn’s patient inadvertently administering anti-cytokine therapy during the pre-symptomatic period of COVID-19 infection. Immune suppression during early infection with SARS-COV2 risks a poor immune response to the virus and could theoretically result in a more severe course of infection.

Data regarding hospitalization outcomes in patients with inflammatory bowel disease (IBD) with respect to hospital teaching status are largely unknown. We aimed to investigate the impact of hospital teaching status on IBD hospitalization outcomes. In this retrospective analysis, we queried the 2016 and 2017 National Inpatient Sample (NIS) databases using the International Classification of Diseases 10th revision (ICD-10) coding system. All adult patients with a principal diagnosis of IBD were included. We stratified the IBD group into ulcerative colitis (UC), Crohn’s disease (CD), and complicated IBD. Our primary outcome was mortality. Statistical analysis was performed using STATA, version 16.0. Of the 189,950 adult patients with IBD, the majority were admitted to teaching hospitals (70.9%). There was no significant difference in mortality based upon hospital teaching status (aOR 1.18, p = 0.48); however, these patients had an increased mean length of stay (adjusted coefficient: 0.82, p

The COVID-19 pandemic seemingly is peaking now in New York City and has triggered significant changes to the standard management of gastrointestinal diseases. Priorities such as minimizing viral transmission, preserving personal protective equipment, and freeing hospital beds have driven unconventional approaches to managing gastroenterology (GI) patients. Conversion of endoscopy units to COVID units and redeployment of GI fellows and faculty has profoundly changed the profile of most GI services. Meanwhile, consult and procedural volumes have been reduced drastically. In this review, we share our collective experiences regarding how we have changed our practice of medicine in response to the COVID surge. Although we review our management of specific consults and conditions, the overarching theme focuses primarily on noninvasive measures and maximizing medical therapies. Endoscopic procedures have been reserved for those timely interventions that are most likely to be therapeutic. The role of multidisciplinary discussion, although always important, now has become critical. The support of our faculty and trainees remains essential. Local leadership can encourage well-being by frequent team check-ins and by fostering trainee development through remote learning. Advancing a clear vision and a transparent process for how to organize and triage care in the recovery phase will allow for a smooth transition to our new normal.

Background Direct comparisons are lacking between vedolizumab and tumour necrosis factor (TNF)-antagonist therapy in Crohn's disease (CD). Aim To compare safety and effectiveness of vedolizumab and TNF-antagonist therapy in adult CD patients. Methods Retrospective observational cohort (May 2014-December 2017) propensity score-weighted comparison of vedolizumab vs TNF-antagonist therapy (infliximab, adalimumab, certolizumab) in CD. Propensity scores were weighted for age, prior treatments, disease complications, extent and severity, steroid dependence, and concomitant immunosuppressive drug use. The primary outcome was comparative risk for infections or non-infectious serious adverse events (requiring antibiotics, antivirals, antifungals, hospitalisation, or treatment discontinuation, or resulting in death). Secondary comparative effectiveness outcomes were clinical remission (resolution of CD-related symptoms), steroid-free clinical remission and endoscopic remission (absence of ulcers/erosions). Results We included 1266 patients (n = 659 vedolizumab). Rates of non-infectious serious adverse events (odds ratio [OR] 0.072, 95% confidence interval [CI] 0.012-0.242), but not serious infections (OR 1.183, 95% CI 0.786-1.795), were significantly lower with vedolizumab vs TNF-antagonist therapy. Safety comparisons for non-infectious serious adverse events remained significant after adjusting for differences in duration of exposure. No significant difference was observed between vedolizumab and TNF-antagonist therapy for clinical remission (hazard ratio [HR] 0.932, 95% CI 0.707-1.228), steroid-free clinical remission (HR 1.250, 95% CI 0.677-2.310) or endoscopic remission (HR 0.827, 95% CI 0.595-1.151). TNF-antagonist therapy was associated with higher treatment persistence compared with vedolizumab. Conclusions There was a lower risk of non-infectious serious adverse events, but not serious infections, with vedolizumab vs TNF-antagonist therapy, with no significant difference for achieving disease remission.

Background We quantified loss of response (LOR) to vedolizumab (VDZ) in clinical practice and assessed the effectiveness of VDZ dose intensification for managing LOR. Methods Retrospective review (May 2014–December 2016) of a prospectively maintained inflammatory bowel disease (IBD) registry. Kaplan-Meier estimates were used to determine rates of LOR to VDZ . Independent predictors of LOR were identified using univariate and multivariable Cox proportional hazard regression. Success of recapturing response (>50% reduction in symptoms from baseline) and remission (complete resolution of symptoms) after dose intensification was quantified. Results Cumulative rates for VDZ LOR were 20% at 6 months and 35% at 12 months, with slightly lower rates in Crohn’s disease than in ulcerative colitis (6 months 15% vs 18% and 12 months 30% vs 39%, P = 0.03). On multivariable analysis, LOR to a tumor necrosis factor (TNF) antagonist before VDZ use was associated with an increased risk for LOR to VDZ [hazard ratio (HR) 1.93; 95% confidence interval (CI) 1.25–2.97] in all patients. For Crohn’s disease patients specifically, higher baseline C-reactive protein concentration was associated with increased risk for LOR to VDZ (HR 1.01 per mg/dL increase, 95% CI 1.01–1.02). Shortening of VDZ infusion interval from 8 to every 4 or 6 weeks recaptured response in 49% and remission in 18% of patients. Conclusions LOR to a TNF antagonist before VDZ use and higher baseline C-reactive protein are important predictors of VDZ LOR. Treatment response can be recaptured in almost half of these patients with VDZ infusion interval shortening.

Background Crohn's disease (CD) following bariatric surgery has been previously described. It is not clear whether the clinical entity is due to rapid metabolism of fat, change in the bacterial milieu of the bowel, the loss of defense mechanisms of the stomach, or even a coincidence. Objectives To present observations which might serve to sort out these various etiologies. Design We present 5 cases of colitis, ileocolitis or enteritis, some with fistula formation, with clinical onset following bariatric surgery and add these to the 7 cases previously identified as CD reported elsewhere. We provide the clinical features of these 12 cases to reconcile with causative mechanisms. Limitations It remains possible that the onset of CD (or other inflammatory bowel disease) precedes the bariatric surgery which then accelerates the clinical manifestations described. Furthermore, without controls the association could remain a coincidence. Conclusions We review the evidence for release of proinflammatory cells and cytokines contained in fat following the bariatric surgery, and also consider the roles that the surgical resection of stomach and shortening of the bowel may also bring about this syndrome. The earlier onset is more likely due to surgical loss of defenses of the stomach and the later onset to a metabolic alteration of the presurgical obesity, involving fat metabolism, and/or the microbiome. The role of characteristic creeping fat of CD is also addressed.