Browsing by Author "Sharma, Neil"

Now showing 1 - 7 of 7
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    Artificial Intelligence in Endoscopic Ultrasound for Pancreatic Cancer: Where Are We Now and What Does the Future Entail?
    (MDPI, 2022-12-16) Dahiya, Dushyant Singh; Al-Haddad, Mohammad; Chandan, Saurabh; Gangwani, Manesh Kumar; Aziz, Muhammad; Mohan, Babu P.; Ramai, Daryl; Canakis, Andrew; Bapaye, Jay; Sharma, Neil; Medicine, School of Medicine
    Pancreatic cancer is a highly lethal disease associated with significant morbidity and mortality. In the United States (US), the overall 5-year relative survival rate for pancreatic cancer during the 2012–2018 period was 11.5%. However, the cancer stage at diagnosis strongly influences relative survival in these patients. Per the National Cancer Institute (NCI) statistics for 2012–2018, the 5-year relative survival rate for patients with localized disease was 43.9%, while it was 3.1% for patients with distant metastasis. The poor survival rates are primarily due to the late development of clinical signs and symptoms. Hence, early diagnosis is critical in improving treatment outcomes. In recent years, artificial intelligence (AI) has gained immense popularity in gastroenterology. AI-assisted endoscopic ultrasound (EUS) models have been touted as a breakthrough in the early detection of pancreatic cancer. These models may also accurately differentiate pancreatic cancer from chronic pancreatitis and autoimmune pancreatitis, which mimics pancreatic cancer on radiological imaging. In this review, we detail the application of AI-assisted EUS models for pancreatic cancer detection. We also highlight the utility of AI-assisted EUS models in differentiating pancreatic cancer from radiological mimickers. Furthermore, we discuss the current limitations and future applications of AI technology in EUS for pancreatic cancers.
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    Endoscopic versus surgical management for colonic volvulus hospitalizations in the United States
    (Korean Society of Gastrointestinal Endoscopy, 2023) Dahiya, Dushyant Singh; Perisetti, Abhilash; Goyal, Hemant; Inamdar, Sumant; Singh, Amandeep; Garg, Rajat; Cheng, Chin-I; Al-Haddad, Mohammad; Sanaka, Madhusudhan R.; Sharma, Neil; Medicine, School of Medicine
    Background/aims: Colonic volvulus (CV), a common cause of bowel obstruction, often requires intervention. We aimed to identify hospitalization trends and CV outcomes in the United States. Methods: We used the National Inpatient Sample to identify all adult CV hospitalizations in the United States from 2007 to 2017. Patient demographics, comorbidities, and inpatient outcomes were highlighted. Outcomes of endoscopic and surgical management were compared. Results: From 2007 to 2017, there were 220,666 CV hospitalizations. CV-related hospitalizations increased from 17,888 in 2007 to 21,715 in 2017 (p=0.001). However, inpatient mortality decreased from 7.6% in 2007 to 6.2% in 2017 (p<0.001). Of all CV-related hospitalizations, 13,745 underwent endoscopic intervention, and 77,157 underwent surgery. Although the endoscopic cohort had patients with a higher Charlson comorbidity index, we noted lower inpatient mortality (6.1% vs. 7.0%, p<0.001), mean length of stay (8.3 vs. 11.8 days, p<0.001), and mean total healthcare charge ($68,126 vs. $106,703, p<0.001) compared to the surgical cohort. Male sex, increased Charlson comorbidity index scores, acute kidney injury, and malnutrition were associated with higher odds of inpatient mortality in patients with CV who underwent endoscopic management. Conclusion: Endoscopic intervention has lower inpatient mortality and is an excellent alternative to surgery for appropriately selected CV hospitalizations.
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    The Evolution of Device-Assisted Enteroscopy: From Sonde Enteroscopy to Motorized Spiral Enteroscopy
    (Frontiers Media, 2021) Nehme, Fredy; Goyal, Hemant; Perisetti, Abhilash; Tharian, Benjamin; Sharma, Neil; Tham, Tony C.; Chhabra, Rajiv; Medicine, School of Medicine
    The introduction of capsule endoscopy in 2001 opened the last "black box" of the gastrointestinal tract enabling complete visualization of the small bowel. Since then, numerous new developments in the field of deep enteroscopy have emerged expanding the diagnostic and therapeutic armamentarium against small bowel diseases. The ability to achieve total enteroscopy and visualize the entire small bowel remains the holy grail in enteroscopy. Our journey in the small bowel started historically with sonde type enteroscopy and ropeway enteroscopy. Currently, double-balloon enteroscopy, single-balloon enteroscopy, and spiral enteroscopy are available in clinical practice. Recently, a novel motorized enteroscope has been described with the potential to shorten procedure time and allow for total enteroscopy in one session. In this review, we will present an overview of the currently available techniques, indications, diagnostic yield, and complications of device-assisted enteroscopy.
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    Gastrointestinal Endoscopy in the Era of COVID-19
    (Frontiers, 2020-11) Perisetti, Abhilash; Goyal, Hemant; Sharma, Neil; Medicine, School of Medicine
    Coronavirus disease 2019 (COVID-19) is caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), which led to a worldwide pandemic that started in early 2020. Healthcare systems across the world encountered an unprecedented surge of COVID-19 patients resulting in more than half a million deaths globally. COVID-19 has affected multiple sub-specialties and procedure-related fields, including gastroenterology. Gastrointestinal (GI) endoscopy centers are specialized units where thousands of endoscopies are performed annually. A significant proportion of these procedures are affected due to the national and regional lockdowns across the globe. To adapt to this rapidly evolving situation, endoscopy centers have undergone significant changes and have taken unprecedented precautions to avoid the transmission of the virus. However, endoscopy centers are going through financial strain due to a reduction in the number of procedures from lockdowns and fear of virus transmission. Theoretically, endoscopies could add to the disease transmission as SARS-CoV-2 has shown to be present in the GI secretions. Multiple precautions such as mandatory use of face masks, safe distancing, use of barriers between the endoscopists and patients, negative pressure rooms, extended use of personal protective equipment, and volume reduction have been taken to decrease the risk of disease transmission by these centers. Moreover, pre-endoscopy COVID-19 testing has now become the norm. In this review, we highlight the significant changes assumed by the endoscopy center. Furthermore, we discuss cost-related concerns of pre-endoscopy COVID-19 testing, the downtime and delays related to the procedures, and effects of rescheduling. As the pandemic progresses through multiple phases, endoscopy centers should use a dynamic approach to adapt and strive to provide the best patient care.
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    Prevalence, Mechanisms, and Implications of Gastrointestinal Symptoms in COVID-19
    (Frontiers, 2020-10) Perisetti, Abhilash; Goyal, Hemant; Gajendran, Mahesh; Boregowda, Umesha; Mann, Rupinder; Sharma, Neil; Medicine, School of Medicine
    Coronavirus disease 2019 (COVID-19) is caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection. The infection started as an outbreak of pneumonia-like symptoms in Wuhan, China. Within a few weeks, it spread across the entire globe resulting in millions of cases and thousands of deaths. While respiratory symptoms and complications are well-defined and can be severe, non-respiratory symptoms of COVID-19 are increasingly being recognized. Gastrointestinal manifestations such as nausea, vomiting, diarrhea, and abdominal pain have been added to the list of common COVID-19 symptoms. Their prevalence has been increasing, probably due to increased recognition and experience with the pandemic. Furthermore, diarrhea and stool testing may change prevalence and transmission rates due to suspicion for fecal-oral transmission of the COVID-19. Due to this risk, various countries have started testing wastewater and sewage systems to examine its role in the spread of SARS-CoV-2 among communities. In this review article, we describe the common gastrointestinal manifestations in COVID-19, their prevalence based upon the current literature, and highlight the importance of early recognition and prompt attention. We also note the role of fecal-oral transmission. Furthermore, the mechanisms of these symptoms, the role of medications, and potential contributing factors are also elaborated.
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    Scope of Artificial Intelligence in Screening and Diagnosis of Colorectal Cancer
    (MDPI, 2020-10-15) Goyal, Hemant; Mann, Rupinder; Gandhi, Zainab; Perisetti, Abhilash; Ali, Aman; Aman Ali, Khizar; Sharma, Neil; Saligram, Shreyas; Tharian, Benjamin; Inamdar, Sumant; Medicine, School of Medicine
    Globally, colorectal cancer is the third most diagnosed malignancy. It causes significant mortality and morbidity, which can be reduced by early diagnosis with an effective screening test. Integrating artificial intelligence (AI) and computer-aided detection (CAD) with screening methods has shown promising colorectal cancer screening results. AI could provide a "second look" for endoscopists to decrease the rate of missed polyps during a colonoscopy. It can also improve detection and characterization of polyps by integration with colonoscopy and various advanced endoscopic modalities such as magnifying narrow-band imaging, endocytoscopy, confocal endomicroscopy, laser-induced fluorescence spectroscopy, and magnifying chromoendoscopy. This descriptive review discusses various AI and CAD applications in colorectal cancer screening, polyp detection, and characterization.
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    The Conundrum of Obesity and Gastroparesis Hospitalizations: A Retrospective Comparative Analysis of Hospitalization Characteristics and Disparities Amongst Socioeconomic and Racial Backgrounds in the United States
    (The Korean Society of Neurogastroenterology and Motility, 2022) Dahiya, Dushyant S.; Inamdar, Sumant; Perisetti, Abhilash; Goyal, Hemant; Singh, Amandeep; Garg, Rajat; Cheng, Chin-I; Kichloo, Asim; Al-Haddad, Mohammad; Sharma, Neil; Medicine, School of Medicine
    Background/aims: We aim to assess the influence of obesity on gastroparesis (GP) hospitalizations in the United States (US). Methods: The National Inpatient Sample was analyzed from 2007-2017 to identify all adult hospitalizations with a primary discharge diagnosis of GP. They were subdivided based on the presence or absence of obesity (body mass index > 30). Hospitalization characteristics, procedural differences, all-cause inpatient mortality, mean length of stay (LOS), and mean total hospital charge (THC) were identified and compared. Results: From 2007-2017, there were 140 293 obese GP hospitalizations accounting for 13.75% of all GP hospitalizations in the US. Obese GP hospitalizations were predominantly female (76.11% vs 64.36%, P < 0.001) and slightly older (51.9 years vs 50.8 years, P < 0.001) compared to the non-obese cohort. Racial disparities were noted as Blacks (25.49% vs 22%, P < 0.001) had higher proportions of GP hospitalizations with obesity compared to the non-obese cohort. Furthermore, we noted higher rates of inpatient upper endoscopy utilization (6.05% vs 5.42%, P < 0.001), longer mean LOS (5.71 days vs 5.32 days, P < 0.001), and higher mean THC ($53 373 vs $45 040, P < 0.001) for obese GP hospitalizations compared to the non-obese group. However, obese GP hospitalizations had lower rates of inpatient mortality (0.92% vs 1.33%, P < 0.001), and need for nutritional support with endoscopic jejunostomy (0.25 vs 0.56%, P < 0.001) and total parenteral nutrition (1.46% vs 2.33%, P < 0.001) compared to the non-obese cohort. Conclusions: In the US, compared to non-obese, a higher proportion of obese GP hospitalizations were female and Blacks. Obese GP hospitalizations also had higher THC, LOS, and rates of upper endoscopy.