Diet and Nutrition in Inflammatory Bowel Disease: A Review of the Literature.

Diet is thought to contribute to the development of inflammatory bowel disease (IBD) and may act as a mediator of inflammation in patients with IBD. Patients commonly associate their diet with symptoms and inquire about dietary modifications to manage their IBD. Without clinical guidelines and well-established nutritional data, healthcare providers managing patients with IBD may find it difficult to provide recommendations. Strong evidence for enteral nutrition, particularly in the pediatric population, has been established in Crohn's disease (CD) as a therapeutic option. Enteral nutrition may also serve as an adjunct to an exclusion diet. Recent studies such as the randomized trial comparing the Specific Carbohydrate Diet to a Mediterranean Diet in CD patients provide additional insights in forming dietary plans. A low-fermentable oligosaccharides, disaccharides, monosaccharides, and polyols (FODMAP) diet in quiescent IBD and an anti-inflammatory diet have also been explored as adjunctive therapies. In this review, we discuss the latest evidence for the role of diet in IBD both as a therapeutic modality and as an opportunity to provide patient-centered care.

Safe Use of POEM in a Patient With Decompensated Cirrhosis and Severe Achalasia.

Patients with both achalasia and decompensated cirrhosis can often present a therapeutic challenge because portal hypertension has generally been considered a contraindication to definitive therapies for achalasia. This case report depicts a patient who presented with progressive dysphagia, weight loss, and large-volume ascites; was diagnosed with type II achalasia and decompensated cirrhosis without esophageal varices; and underwent peroral endoscopic myotomy after preprocedural transjugular intrahepatic portosystemic shunt placement. Our case highlights the importance of multidisciplinary care and need for definitive therapies for these complex patients at high risk of malnutrition and sarcopenia.

Alcoholic vs. Nonalcoholic Steatohepatitis: Vascular Branching Heterogeneity on Magnetic Resonance Imaging as a Diagnostic Marker.

Background and Aims: Distinguishing alcoholic steatohepatitis (ASH) and nonalcoholic steatohepatitis (NASH) with biopsy alone is often difficult without a reliable clinical context. A novel finding on liver imaging, perivascular branching heterogeneity, has shown promise in distinguishing between these chronic liver diseases. Our study investigated the role of this finding on imaging to differentiate between ASH and NASH. The aim of this study was to determine the utility and reproducibility of this novel radiographic marker to help distinguish ASH from NASH. Methods: This was a retrospective cohort study conducted between 2016 and 2020 in patients with both liver biopsy-confirmed steatohepatitis/chronic hepatitis and abdominal magnetic resonance imaging within 13 months of each other. Two radiologists, blinded to patient clinical history and diagnosis, categorized the appearance of the liver as: 1- homogeneity, 2- mild heterogeneity, 3- moderate heterogeneity, 4- possible perivascular branching, 5- definite perivascular branching. Results: Of the 90 patients in the study, 60 were identified as NASH and 30 as ASH. The area under the curve (AUC) for both reader 1 and 2 when using the 5-point scale was 0.69 (CI: 0.56-0.82, p=0.006) and 0.72 (CI: 0.60-0.85, p=0.001), respectively. The positive predictive value (PPV) for identification of ASH when scoring 5 was 64.7% and 66.7% for reader 1 and 2, respectively. Interclass correlation coefficient was 0.74 in patients with ASH, indicating moderate reliability among both readers. Conclusions: Identification of this perivascular branching pattern on imaging is a promising novel diagnostic marker that can be used with other methods to help distinguish between ASH and NASH.

The Role of Host in the Spectrum of Outcomes in Family Clusters of Hepatitis Infection: From Asymptomatic to Hepatocellular Carcinoma.

Hepatitis B virus infections are prevalent worldwide, but the outcomes of infection vary greatly from host to host. In many endemic regions, vertical transmission from mother to child is most common. In this transmission setting, virus genotype and shared patient genetics make for an interesting comparison of outcome of chronic hepatitis B infection. This case series demonstrates four family clusters which display disparate outcomes among family members with hepatitis B virus infections, further stressing the role of host and non-genetic factors in the natural history of the disease. Many host factors have been theorized, from epigenetic mechanisms to the role of chronic stress, but more research is needed to better understand those at higher risk of feared complications such as hepatocellular carcinoma and cirrhosis.

Hepatitis B Virus-Associated Hepatocellular Carcinoma and Chronic Stress.

The Hepatitis B virus is one of the most significant hepatocarcinogens globally. The carcinogenic mechanisms of this virus are complex, and may include interactions with the host's immune system. Certain factors, such as stress on the body, can also potentiate these mechanisms. Stress, although adaptive in an acute form, is deleterious to health when chronic and can both suppress and activate the host's defense system. In hepatocellular carcinoma, this can lead to tumor initiation and progression. Those that are more prone to stress, or exposed to situations that incite stress, may be at higher risk of developing cancer. Racial disparities, for example, are a source of chronic psychosocial stress in America and predispose minorities to poorer outcomes. As it remains perplexing why some individuals with chronic hepatitis B develop feared complications while others do not, it is important to recognize as many risk factors as possible, including those often overlooked such as chronic stress.

Post-transfusion hemoglobin response in patients with cirrhosis: Can we expect a 1 g/dL rise per unit transfused?

BACKGROUND: A patient's hemoglobin is typically expected to rise by 1 g/dL/unit transfused PRBCs. However, it has been theorized that mechanisms such as hyperbilirubinemia and splenomegaly might lead to either a direct lysis or sequestration of red blood cells that could decrease this proportionate response. STUDY DESIGN AND METHODS: Patients with resolved GI bleeding but still requiring transfusion to correct anemia were compared in cirrhosis and control groups. A retrospective chart review between 2015 and 2020 was conducted at a single institution. Data collected included age, sex, BMI, GI bleed diagnosis, number of PRBCs transfused, presence of splenomegaly and spleen size, alcohol use history, type of cirrhosis, MELD-Na at admission, GFR, and pre-and post-transfusion labs: total bilirubin, ALT, hemoglobin, hematocrit. A logic regression was performed for each group looking at which factors were associated with a successful response (defined as >0.9 g/dL hemoglobin per unit transfused). RESULTS: Mean change in hemoglobin was 0.77 g/dL in patients with cirrhosis compared to 1.46 g/dL in patients without (P < .001, N = 103). Odds ratios for presence of splenomegaly (0.22, N = 78) and female sex (4.39, N = 102) in predicting adequate response (>0.9 g/dL/unit) were both significant (P = .002) as well as portal hypertensive bleed diagnosis (0.28, N = 85, P = .0015). Factors that did not contribute included: age, race, BMI, alcohol use, GFR, change in ALT, and change in total bilirubin. CONCLUSIONS: Patients with cirrhosis have an approximately 50% decreased response to transfusion with PRBCs after resolution of a gastrointestinal bleed in comparison to patients without cirrhosis. Risk factors included splenomegaly, portal hypertension, and male sex.

The Role of C1-Esterase Inhibitors in the Management of Vasogenic Edema in Glioblastoma.

Glioblastoma (GB) is one of the most common adult primary brain tumors, classified as a grade IV astrocytoma and highly malignant in nature. As the tumor grows and disrupts the blood-brain barrier (BBB), vasogenic edema can result. The edema has the potential to significantly contribute to a patient's morbidity and mortality. Bradykinin has been theorized to play a role in this process as well as encourage tumor spread. Here we discuss a case in which a patient with vasogenic edema and angioedema refractory to antihistamines and high dose corticosteroids responded to C1-esterase inhibitor (C1INH) therapy. Though data exist concerning the role of bradykinin in GB, no clinical studies using C1INH have been done in humans with GB.

Using Video and Virtual Patients in Problem-Based Learning: a Scoping Review.

Problem presentation in problem-based learning can include the use of videos and interactive virtual patients. This review scopes the literature for this variation and what benefits or pitfalls there may be to their use. Themes indicate that videos and virtual patients may better prepare students for future difficult clinical interactions, while also increasing authenticity and memorability of cases. Findings are more inconsistent in determining whether they lead to clear knowledge or critical thinking gains. Despite inconsistent data, in an age where the use of technology is inevitable, the findings of this scoping review can inform future practice and guide innovation.