Publications by authors named "Neil Sengupta"

Article Synopsis
  • The study focuses on the need for an objective method to evaluate and compare different computer-aided detection (CADe) algorithms used in colorectal cancer screening, as their performance varies and no standard exists.
  • A modified Delphi approach was employed, where 25 experts generated and prioritized scoring criteria over eight months, ultimately identifying six key metrics, including sensitivity and adenoma detection rate.
  • The resulting criteria aim to guide the development and improvement of CADe software, with future research suggested to validate these metrics on benchmark video datasets.
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Gastrointestinal (GI) bleeding is the most common GI diagnosis leading to hospitalization within the United States. Prompt diagnosis and treatment of GI bleeding is critical to improving patient outcomes and reducing high healthcare utilization and costs. Radiologic techniques including computed tomography angiography, catheter angiography, computed tomography enterography, magnetic resonance enterography, nuclear medicine red blood cell scan, and technetium-99m pertechnetate scintigraphy (Meckel scan) are frequently used to evaluate patients with GI bleeding and are complementary to GI endoscopy.

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Article Synopsis
  • Gastrointestinal (GI) bleeding is the leading cause of GI-related hospitalizations in the U.S., making timely diagnosis and treatment essential for better patient outcomes and reduced healthcare costs.
  • Various radiologic techniques, such as CT angiography and MR enterography, are used to assess GI bleeding and work alongside GI endoscopy, although existing management guidelines can create confusion about their use.
  • An expert panel has reviewed these radiologic methods, discussing their performance, pros and cons compared to endoscopy, and providing consensus recommendations for their technical application in GI bleeding cases.
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Close outpatient follow-up of patients discharged from the emergency department (ED) has been associated with improved antimicrobial stewardship, medication compliance, and decreased mortality. Despite these clear benefits, studies have shown most patients do not receive follow-up from specialists or Family Physicians (FP). While age, race and insurance status may be factors in Australia and the United States, there remains a paucity of Canadian studies investigating potential factors that influence follow-up.

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Gastrointestinal (GI) bleeding is a potentially life-threatening condition accounting for more than 300 000 annual hospitalizations. Multidetector abdominopelvic CT angiography is commonly used in the evaluation of patients with GI bleeding. Given that many patients with severe overt GI bleeding are unlikely to tolerate bowel preparation, and inpatient colonoscopy is frequently limited by suboptimal preparation obscuring mucosal visibility, CT angiography is recommended as a first-line diagnostic test in patients with severe hematochezia to localize a source of bleeding.

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Article Synopsis
  • Acute lower gastrointestinal bleeding (LGIB) is a major cause for hospitalizations in the U.S., leading to high resource use and significant health risks for patients.
  • The revised guidelines suggest using risk stratification tools to better identify patients who may not need invasive interventions, as well as recommendations on blood transfusions, reversal agents for anticoagulant use, and diagnostic approaches like colonoscopy and CTA.
  • The guidelines emphasize that most patients should have a nonurgent colonoscopy and outline updated protocols for resuming antiplatelet and anticoagulant medications post-LGIB management.
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Background: The role of antisecretory drugs for the prevention of upper gastrointestinal bleeding in patients using anticoagulants is unclear. We investigated this question in a systematic review and meta-analysis.

Methods: We searched Embase, PubMed, Web of Science, Scopus, the Cochrane Library, and clinicaltrials.

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Background & Aims: Artificial intelligence-based computer-aided polyp detection (CADe) systems are intended to address the issue of missed polyps during colonoscopy. The effect of CADe during screening and surveillance colonoscopy has not previously been studied in a United States (U.S.

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Introduction: Video capsule endoscopy (VCE) has become the accepted evaluation of choice for patients with suspected small bowel bleeding. Our aim was to evaluate the impact of early as compared to delayed inpatient VCE on post-index hospitalization readmission rates.

Methods: We performed a retrospective study using medical claims from the IBM® Marketscan® Commercial Database from January 1, 2004, through September 30, 2018, including adult patients that underwent an inpatient VCE.

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Introduction: Chronic, non-cancer, axial or radicular spinal pain is a common condition associated with considerable socioeconomic burden. Clinicians frequently offer patients various interventional procedures for the treatment of chronic spine pain; however, the comparative effectiveness and safety of available procedures remains uncertain.

Methods: We will conduct a systematic review of randomised controlled trials that explores the effectiveness and harms of interventional procedures for the management of axial or radicular, chronic, non-cancer, spine pain.

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Introduction: The reported use of cannabis within surgical population is increasing. Cannabis use is potentially associated with increased harms and varied effects on pain control. These have important implications to perioperative care.

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Background & Aims: Comparative effectiveness has become increasingly important to help position therapies for inflammatory bowel disease. We compared the efficacy and rapidity of onset of action of infliximab vs ustekinumab induction therapy for moderate to severe biologic-naïve Crohn's disease (CD) using patient-level data from randomized controlled trials.

Methods: This was a post hoc analysis of 2 large CD clinical trial programs that included data on 420 biologic-naïve CD patients.

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Background And Aims: As the COVID-19 pandemic moves into the postpeak period, the focus has now shifted to resuming endoscopy services to meet the needs of patients who were deferred. By using a modified Delphi process, we sought to develop a structured framework to provide guidance regarding procedure indications and procedure time intervals.

Methods: A national panel of 14 expert gastroenterologists from throughout the US used a modified Delphi process, to achieve consensus regarding: (1) common indications for general endoscopy, (2) critical patient-important outcomes for endoscopy, (3) defining time-sensitive intervals, (4) assigning time-sensitive intervals to procedure indications.

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Objectives: Because of high historical no-show rates and poor bowel preparation quality in our unit, we sought to evaluate whether text message navigation for patients scheduled for colonoscopy would reduce no-show rates and improve bowel preparation quality compared with usual care.

Methods: We performed a randomized controlled quality improvement study from April to August 2019 in an urban academic endoscopy unit. All patients scheduled for colonoscopy were randomly assigned to a control group that received usual care (paper instructions/nursing precalls) or to the intervention group that received usual care plus the text message program [short message service (SMS)].

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Background: Patients receiving anticoagulant therapies, such as vitamin K antagonists (VKAs) or direct oral anticoagulants (DOACs), commonly experience gastrointestinal (GI) bleeding as a complication and may require anticoagulant reversal prior to endoscopic treatment. Anticoagulant reversal agents include prothrombin complex concentrates (PCCs; including 3 or 4 coagulation factors), plasma, vitamin K, and target-specific DOAC reversal agents (e.g.

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Background & Aims: Limited data exist on the management of anticoagulation after hospitalization for gastrointestinal bleeding (GIB) and the risks of recurrent GIB and thromboembolism in patients who are prescribed warfarin vs direct oral anticoagulants (DOACs). The purpose of this study was to assess the risk of recurrent GIB and thromboembolism with resumption of anticoagulation after GIB.

Methods: This was a retrospective analysis of adults with atrial fibrillation prescribed warfarin or DOACs and subsequently hospitalized for GIB.

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Background: The outcomes of patients undergoing esophagogastroduodenoscopy (EGD) in the intensive care unit (ICU) for upper gastrointestinal bleeding (UGIB) are not well described. Our aims were to determine predictors of 30-day mortality and endoscopic intervention, and assess the utility of existing clinical-prediction tools for UGIB in this population.

Methods: Patients hospitalized in an ICU between 2008 and 2015 who underwent EGD were identified using a validated, machine-learning algorithm.

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Although its mechanism of action may confer a safety benefit, vedolizumab has still been associated with adverse events (AE). We investigated whether inflammatory bowel disease (IBD) patients with higher trough vedolizumab serum levels experienced an increased risk of AEs. This was a retrospective study of 76 IBD patients with at least one measurement of serum vedolizumab available.

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Coronavirus disease of 2019 (COVID-19) can be associated with high morbidity and mortality; patients with severe clinical manifestations may develop significant coagulopathy as well as unexpected thromboembolic complications. In response, centers are increasingly treating selected patients with intermediate-dose prophylactic or even therapeutic dose anticoagulation in order to prevent potentially catastrophic thrombotic complications. With this changing practice, the authors suspect that inpatient gastrointestinal consult teams across the country will be frequently managing COVID-19 patients with gastrointestinal bleeding (GIB).

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