Endoscopic Management of Post-Sleeve Gastrectomy Complications.

Obesity is associated with several chronic conditions including diabetes, cardiovascular disease, and metabolic dysfunction-associated steatotic liver disease and malignancy. Bariatric surgery, most commonly Roux-en-Y gastric bypass and sleeve gastrectomy, is an effective treatment modality for obesity and can improve associated comorbidities. Over the last 20 years, there has been an increase in the rate of bariatric surgeries associated with the growing obesity epidemic. Sleeve gastrectomy is the most widely performed bariatric surgery currently, and while it serves as a durable option for some patients, it is important to note that several complications, including sleeve leak, stenosis, chronic fistula, gastrointestinal hemorrhage, and gastroesophageal reflux disease, may occur. Endoscopic methods to manage post-sleeve gastrectomy complications are often considered due to the risks associated with a reoperation, and endoscopy plays a significant role in the diagnosis and management of post-sleeve gastrectomy complications. We perform a detailed review of the current endoscopic management of post-sleeve gastrectomy complications.

Current Management and Treatment Paradigms of Gastroesophageal Reflux Disease following Sleeve Gastrectomy.

Obesity is associated with serious comorbidities and economic implications. Bariatric surgery, most commonly Roux-en-Y gastric bypass and sleeve gastrectomy, are effective options for weight loss and the improvement of obesity-related comorbidities. With the growing obesity epidemic, there has been a concomitant rise in bariatric surgeries, particularly in sleeve gastrectomy, which has been the most widely performed bariatric surgery since 2013. Gastroesophageal reflux disease (GERD) is highly prevalent in obese individuals, can significantly impact quality of life and may lead to serious complications. Obesity and GERD both improve with weight loss. However, as the incidence of sleeve gastrectomy rises, recent data have revealed a risk of exacerbation of pre-existing GERD or the development of de novo GERD following sleeve gastrectomy. We performed a detailed review of GERD post-sleeve gastrectomy, including its overall incidence, pathophysiology and current treatment paradigms.

Liver Dysfunction in Adult Hemophagocytic Lymphohistiocytosis: A Narrative Review.

Hemophagocytic lymphohistiocytosis (HLH) is a rare, life-threatening condition that has been increasingly recognized in adults and is characterized by a hyperinflammatory state due to immune dysregulation. Its nonspecific presentation, the lack of clinician familiarity given its rarity, and shared clinical features with sepsis and other syndromes can lead to a delay in diagnosis and a poor prognosis. Significant liver function abnormalities as the initial manifestation of HLH are uncommon and can range from mild elevation of aminotransferases to fulminant hepatic failure with high mortality rates. The authors encountered a case of adult HLH mimicking acute viral hepatitis in which a markedly elevated ferritin level led to a prompt diagnosis, early initiation of treatment, and a successful outcome. Clinicians, including gastroenterologists and hepatologists, are often called upon to evaluate patients with abnormal liver tests and may lack experience in the early diagnosis and management of liver dysfunction in the context of HLH. Thus, we expand our reporting to a narrative review of literature which explores the pathogenesis of HLH, challenges associated with its diagnosis, previous reports of liver disease associated with the syndrome, recommended treatments for the familial and adult variations including the role of liver transplantation, and the outcomes of these treatments.

Gastroesophageal Reflux Disease in Obesity: Bariatric Surgery as Both the Cause and the Cure in the Morbidly Obese Population.

Gastrointestinal reflux disease (GERD) is a chronic, highly prevalent condition in the United States. GERD can significantly impact quality of life and lead to complications including aspiration pneumonia, esophageal stricture, Barrett's esophagus (BE) and esophageal cancer. Obesity is a risk factor for GERD, which often improves with weight loss and bariatric surgery. Though the incidence of bariatric surgery, in particular, minimally invasive sleeve gastrectomy, has risen in recent years, emerging data has revealed that the severity or new onset of GERD may follow bariatric surgery. We performed a literature review to provide a detailed analysis of GERD with an emphasis on bariatric surgery as both the cure and the cause for GERD in the morbidly obese population. We also describe the pathophysiological mechanisms, management approach and treatment strategies of GERD following bariatric surgery.

Adult Hemophagocytic Lymphohistiocytosis Mimicking Acute Viral Hepatitis.

Adult hemophagocytic lymphohistiocytosis is a lifethreatenning disease which has hepatic manifestations mimicking acute hepatitis or can present with fulminant hepatic failure. The undelying pathophysiology is immune dysregulation causing a hyperinflammatory state. Clues to diagnosis include extremely high ferritin levels, whereas definitive diagnosis is usually made by bone marrow, as opposed to liver biopsy. Even with early and appropriate treatment with weekly dexamethasone and etoposide, mortality remains high.

Disparities in esophageal cancer incidence and esophageal adenocarcinoma mortality in the United States over the last 25-40 years.

BACKGROUND: Esophageal carcinoma presents as 2 types, esophageal adenocarcinoma (EAC) and esophageal squamous cell carcinoma (ESCC) with the frequency of both changing in the United States (US). AIM: To investigate EAC/ESCC incidence time trends among the 3 main US racial groups and investigate trends in US EAC survival by ethnicity. METHODS: Twenty-five years (1992-2016) of data from SEER 13 program was analyzed to compare incidence trends in EAC and ESCC between non-Hispanic whites (nHW), non-Hispanic Blacks (nHB) and Hispanics (Hisp) using SEERStat®. In addition, SEER 18 data, from 1975-2015, on EAC in the US was analyzed to evaluate racial disparities in incidence and survival using SEERStat® and Ederer II method. RESULTS: In the 3 major US ethnic groups, age-adjusted incidence of ESCC has declined while EAC has continued to rise from 1992-2016. Of note, in Hisp, the EAC incidence rate increased while ESCC decreased from 1992 to 2016, resulting in EAC as the predominant esophageal cancer subtype in this group since 2011, joining nHW. Furthermore, although ESCC remains the predominant tumor in nHB, the difference between ESCC and EAC has narrowed dramatically over 25 years. EAC survival probabilities were worse in all minority groups compared to nHw. CONCLUSION: Hisp have joined nHW as US ethnic groups more likely to have EAC than ESCC. Of note, EAC incidence in nHB is increasing at the highest rate nationally. Despite lower EAC incidence in all minority groups compared to nHW, these populations have decreased survival compared to nHW.

It Ain't Over 'Til It's Over: SARS CoV-2 and Post-infectious Gastrointestinal Dysmotility.

The ongoing pandemic resulting from severe acute respiratory syndrome-caused by coronavirus 2 (SARS-CoV-2)-has posed a multitude of healthcare challenges of unprecedented proportions. Intestinal enterocytes have the highest expression of angiotensin-converting enzyme-2 (ACE2), which functions as the key receptor for SARS-CoV-2 entry into cells. As such, particular interest has been accorded to SARS-CoV-2 and how it manifests within the gastrointestinal system. The acute and chronic alimentary clinical implications of infection are yet to be fully elucidated, however, the gastrointestinal consequences from non-SARS-CoV-2 viral GI tract infections, coupled with the generalized nature of late sequelae following COVID-19 disease, would predict that motility disorders are likely to be seen in these patients. Determination of the chronic effects of COVID-19 disease, herein defined as GI disease which is persistent or recurrent more than 3 months following recovery from the acute respiratory illness, will require comprehensive investigations comprising combined endoscopic- and motility-based evaluation. It will be fascinating to ascertain whether the specific post-COVID-19 phenotype is hypotonic or hypertonic in nature and to identify the most vulnerable target portions of the gut. A specific biological hypothesis is that motility disorders may result from SARS-CoV-2-induced angiotensin-converting enzyme 2 (ACE2) depletion. Since SARS-CoV-2 is known to exhibit direct neuronal tropism, the potential also exists for the development of neurogenic motility disorders. This review aims to explore some of the potential pathophysiologic mechanisms underlying motility dysfunction as it relates to ACE2 and thereby aims to provide the foundation for mechanism-based potential therapeutic options.

Autoimmune pancreatitis: What we know so far.

Autoimmune pancreatitis (AIP) is a rare, often-missed disease that involves inflammation of the pancreas and strictures of the pancreatic duct. Its prevalence and incidence in the United States remain scarce. The disease has a varied presentation and often mimics pancreatic malignancy, which can make the diagnosis challenging. Most patients have an excellent response to corticosteroid therapy. Immunomodulators may be used in some cases. Rituximab is an effective, emerging treatment in steroid-refractory cases. This study aims to review the two distinct types of AIP and provide a detailed analysis of the diagnostic approach and treatment modalities.

Intentional Foreign Body Ingestions: A Complex, Recurrent and Costly Issue.

BACKGROUND Recurrent intentional foreign body (RIFB) ingestion is a complex and costly issue among patients in prison and those with psychiatric disorders. Risk factors for RIFB ingestion include male sex, incarceration, and the presence of a psychiatric disorder. Most patients can be managed with observation and endoscopy. Surgery is indicated in cases involving perforation or obstruction. The literature on preventative strategies for RIFB ingestion is scarce. CASE REPORT A 23-year-old man required 6 admissions in 1 calendar year for intentional foreign body ingestions. The patient was living in prison and had a history of bipolar I disorder, schizophrenia, and borderline personality disorder. He underwent 9 endoscopic procedures that retrieved a total of 64 objects. The primary imaging modalities were abdominal X-ray and abdominopelvic contrast-enhanced computed tomography scan. The patient was managed with endoscopy and, in 2 cases, with observation alone. Serial abdominal examinations and abdominal films were used to monitor the progress of foreign bodies that were difficult to retrieve. A bowel regimen with polyethylene glycol facilitated the passage of the objects. The patient never required surgical intervention. The mean length of stay was 4.17 days. The recurrent ingestions may have been related to compulsions and family stress. CONCLUSIONS Interdisciplinary collaboration is paramount in formulating effective treatment plans and limiting recurrence. Proposed strategies to prevent RIFB ingestion include the removal of ingestible objects from the environment, specialized prison units for close monitoring, early psychiatric intervention with appropriate pharmacologic/behavioral therapy, and limiting hospital admissions to prevent secondary gain. Further studies are needed to determine the most effective approach to manage and prevent RIFB ingestion.

The GIST of It: A Rare Presentation of Neurofibromatosis Type I.

Neurofibromatosis-1 (NF-1) is an autosomal dominant condition characterized by cutaneous pigmentation and tumour formation along nerves in the brain, skin, and other organs. Gastrointestinal stromal tumours (GIST) are rare mesenchymal tumours involving the gastrointestinal tract (GI) associated with NF-1. We present a case of life-threatening GI bleeding from GIST in a patient with NF-1. In NF-1 patients presenting with GI bleeding, GISTs should be part of the differential. Clinicians must have a low threshold for urgent abdominal imaging if endoscopy does not detect the source of GI bleeding.

When hiccups mean something more than just a nuisance: A rare presentation of pyogenic liver abscess.

Pyogenic liver abscess (PLA) is an uncommon yet potentially fatal disease. The disease most commonly arises from biliary infection but may also result from hematogenous seeding and portal spread secondary to bowel contamination, direct seeding, or penetrating trauma. The diagnosis is suspected when there is a hepatic lesion on imaging. Confirmation of diagnosis requires purulent aspirate or bacterial growth on Gram stain/culture of the abscess or blood. The mainstay of treatment is antimicrobials in conjunction with either percutaneous abscess drainage or aspiration. Surgical drainage is reserved for cases of ruptured abscess, peritonitis, or in the presence of an underlying surgical cause. PLA typically presents with fever and abdominal symptoms. We report a case of an unusual manifestation of PLA, presenting as hiccups, which led to a significant delay in the diagnosis and treatment.

Management of Refractory Gastrointestinal Bleeding in Hereditary Hemorrhagic Telangiectasia with Bevacizumab.

Hereditary hemorrhagic telangiectasia (HHT) is an autosomal dominant disorder resulting in vascular malformations of several organs including the pulmonary, cerebral, and gastrointestinal systems. One sequela is recurrent gastrointestinal (GI) bleeding. Bevacizumab (Bev) is emerging as an effective treatment of recurrent gastrointestinal bleeding in HHT. Bev is a recombinant monoclonal antibody that inhibits vascular endothelial growth factor (VEGF), an integral part of angiogenesis.

P040 Latent Tuberculosis Infection In A Patient With A Negative Interferon Gamma Release Assay Prior to Biologic Initiation for Crohn's Disease.

CASE: Biologic therapy has revolutionized the treatment of inflammatory bowel disease (IBD). Nevertheless, it is well known that biologics are associated with an increased risk of opportunistic infections such as tuberculosis (TB). Screening tests indicated before biologic initiation, namely interferon gamma release assay (IGRA) or tuberculin skin tests (TST), may be falsely negative. We present the case of a male with uncontrolled Crohn's disease (CD) with a negative screen for TB and how a high index of suspicion led to the discovery of latent tuberculosis infection (LTBI) and the appropriate deferment of biologic therapy. A 63-year-old South Asian male with coronary artery disease status post bypass graft, prostate cancer, diabetes and iron deficiency anemia presented with fatigue and dizziness for one week. He reported dark stools since immigration from Bangladesh two years ago. Vital signs and examination were unremarkable. Laboratory studies revealed a gradual decline in hemoglobin from 9 g/dL to 7 g/dL over several months. Esophagogastroduodenoscopy was unremarkable. Colonoscopy revealed friability, inflammation and erythema of the ileocecal valve and terminal ileum (TI) with minimal strictures. Biopsy was consistent with CD. He was started on azathioprine. Subsequent computed tomography (CT) enterography revealed thickened TI extending over a length of 9-10 centimeters. Due to disease severity and continued symptoms, he was referred to our tertiary care center where it was determined that he may benefit from biologic therapy. Patient underwent IGRA testing which was negative. Given his immigration from an endemic area and use of immunosuppressants, a CT of the chest was obtained which was significant for tree-in-bud opacities within the right upper lobe and multiple nodules. Transbronchial biopsy of the largest nodule showed necrotizing granulomatous inflammation. Bronchoalveolar lavage culture was positive for Mycobacterium tuberculosis. The patient was diagnosed with LTBI. Anti-tuberculin therapy was initiated, and biologic therapy was postponed. Biologic agents are increasingly utilized in the treatment of IBD. These agents confer an increased risk of infections i.e. TB and poor outcomes from severe disease. Patients with IBD are also susceptible to infections due to the immunosuppression imposed by the disease itself. The risk of TB varies with the biologic used with the highest relative risks associated with adalimumab and infliximab. Screening for LTBI is indicated in all patients for which biologics are being considered. The goal is to identify and treat individuals at high risk for TB reactivation. A thorough history and examination should be performed to assess pertinent signs and symptoms. While IGRA has demonstrated higher sensitivity and specificity compared to TST, immunosuppressed patients may have a false negative result as in our case. Combination testing may be the most sensitive approach though evidence is limited. In cases of high suspicion, imaging with plain radiograph or CT scan is a useful tool in supporting the diagnosis of LTBI and may show predominantly upper lobe cavitary disease. Biologic therapy for IBD should be deferred until at least one month of treatment for LTBI has been completed.