Publications by authors named "Vikesh Singh"

Objective: To determine which abdominal CT findings predict severe fibrosis and post-operative pain relief in chronic pancreatitis (CP).

Methods: Pre-operative abdominal CTs of 66 patients (mean age 52 ± 12 years, 53 % males) with painful CP who underwent the Whipple procedure (n = 32), Frey procedure (n = 32) or pancreatic head biopsy (n = 2), between 1/2003-3/2014, were evaluated. CT was evaluated for parenchymal calcifications, intraductal calculi, main pancreatic duct dilation (>5 mm), main pancreatic duct stricture, and abnormal side branch(es).

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Background/aim: There are currently no data on the relative retention rates of the Instinct clip, Resolution clip, and QuickClip2Long. Also, it is unknown whether retention rate differs when clips are applied to ulcerated rather than normal mucosa. The aim of this study is to compare the retention rates of three commonly used endoscopic clips.

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Purpose: Compare CT and MRI for fluid/debris component estimate and pancreatic duct (PD) communication with organized pancreatic fluid collections in acute pancreatitis. Evaluate fat density globules on CT as marker for debris.

Methods: 29 Patients with 46 collections with CECT and MRI performed ≥4 weeks of symptom onset assessed for necrotizing pancreatitis, estimated percentage of fluid volume and PD involvement by two radiologists on separate occasions.

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Intraductal papillary mucinous neoplasms (IPMNs) have malignant potential and can progress from low- to high-grade dysplasia to invasive adenocarcinoma. The management of patients with IPMNs is dependent on their risk of malignant progression, with surgical resection recommended for patients with branch-duct IPMN (BD-IPMN) who develop high-risk features. There is increasing evidence that liver transplant (LT) patients are at increased risk of extrahepatic malignancy.

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Background: Data regarding the incidence and severity of post-ERCP pancreatitis (PEP) are primarily from nonrandomized studies.

Objective: To determine the incidence, severity, and mortality of PEP from a systematic review of the placebo or no-stent arms of randomized, controlled trials (RCTs).

Design: MEDLINE, EMBASE, and Cochrane databases were searched to identify RCTs evaluating the efficacy of drugs and/or pancreatic stents to prevent PEP.

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Background And Aim: Endoscopic ultrasound-guided biliary drainage (EGBD) may be a safe, alternative technique to percutaneous transhepatic biliary drainage (PTBD) in patients who fail ERCP. However, it is currently unknown how both techniques compare in terms of efficacy, safety, and cost. The aims of this study were to compare efficacy, safety, and cost of EGBD to that of PTBD.

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Objectives: This study aimed to compare severity of acute pancreatitis (AP) and mortality rates between transferred and nontransferred patients and to determine the factors that influence the decision to transfer.

Methods: A retrospective analysis coding a statewide administrative database in Maryland was conducted. Severity was defined by presence of organ failure (OF), need for intensive care unit (ICU), mechanical ventilation (MV), or hemodialysis.

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Background And Study Aims: A new on-demand enteroscopy (ODE) device has been designed to allow deep enteroscopy using a standard adult colonoscope with the aid of a novel through-the-scope balloon. The aims of the current study were to establish the feasibility, efficacy, and safety of ODE in performing anterograde and retrograde enteroscopy.

Patients And Methods: A retrospective, single-center study of 28 consecutive deep ODE procedures (11 anterograde and 17 retrograde) was performed.

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Background: Walled-off pancreatic necrosis (WOPN) is effectively managed with percutaneous and endoscopic techniques such as direct endoscopic necrosectomy. However, they require repeat interventions and lengthy hospital stays.

Objective: To evaluate a new platform to manage WOPNs by using a large-bore, through-the-scope, fully covered, self-expandable metal stent (FCSEMS) to overcome the need for repeat interventions and extended hospital stays.

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Background And Aim: Endoscopic submucosal dissection (ESD) is a complex procedure and is associated with significant risks. The aims of this pilot study were to study feasibility and procedural times of gastric ESD using a novel gel and endoscopic scissors in a porcine model.

Methods: Simulated 3-cm gastric submucosal lesions were created in a porcine model.

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Background/objectives: Acute pancreatitis (AP) is a disease typically requiring in-hospital treatment. We conducted a trial to assess the feasibility of early discharge from the hospital for patients with mild non-alcoholic acute pancreatitis (NAAP).

Methods: Eighty-four patients with mild NAAP were randomized to home or hospital groups after a short hospital stay (≤24 h).

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Background And Study Aims: Placement of a pancreatic stent is recommended for the prevention of pancreatitis after endoscopic retrograde cholangiopancreatitis (ERCP) among high-risk patients. However, it is not known whether there is a particular feature of the pancreatic stent that is associated with a lower incidence of post-ERCP pancreatitis (PEP). This systematic review and network meta-analysis (NMA) aimed to examine whether a particular feature of pancreatic stents is associated with lower incidence of PEP.

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Background And Study Aims: Endoscopic submucosal dissection (ESD) is a technically challenging procedure. A novel gel can facilitate ESD due to its submucosal dissecting properties. This prospective porcine survival study evaluated clinical and histologic parameters of hybrid ESD using the gel.

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Purpose: To evaluate the CT severity of post-ERCP pancreatitis (PEP) and determine the association between radiographic and clinical severity.

Methods: There were 1332 patients admitted to the hospital with suspicion for PEP after undergoing ERCP as outpatients over a 10-year period, of whom 84 (6.3%) patients underwent at least one contrast-enhanced CT scan while hospitalized were evaluated.

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Chronic pancreatitis is characterized by long-standing inflammation of the pancreas, which results in fibrosis and the gradual loss of pancreatic function. The loss of islets and acinar cells results in diabetes and exocrine insufficiency, respectively. Exocrine insufficiency can result in maldigestion of fat, protein, and carbohydrate as well as vitamins and minerals.

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Background/objectives: Solid-pseudopapillary neoplasms (SPNs) are rare pancreatic tumors, which occur most frequently in young women and are associated with an excellent prognosis. Computed tomography (CT) is used most commonly to identify these lesions, but there are few studies evaluating the role of endoscopic ultrasound (EUS) and fine needle aspiration (EUS-FNA) in the assessment of SPN. The aim of the study was to determine the incremental diagnostic yield of EUS-FNA compared with CT or EUS in the evaluation of patients with SPN.

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Background: Hypertriglyceridemia induces acute recurrent pancreatitis, but its role in the etiology of chronic pancreatitis (CP) is controversial. This study aimed to evaluate the clinical, laboratory and radiological findings of 7 patients with CP due to type 1 hyperlipidemia compared to CP patients with other or undefined etiological factors.

Methods: We retrospectively analyzed the clinical, laboratory and radiological findings of 7 CP patients with type 1 hyperlipidemia compared to CP patients without hypertriglyceridemia.

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Objective: The aim of the study was to determine if there had been any change in the number of solid-pseudopapillary neoplasm (SPN) cases detected and their evaluation or management over time.

Methods: A systematic review of SPN was performed of all articles published in English in PubMed and Scopus.

Results: A total of 2744 patients with SPN were identified in 484 studies published between 1961 and 2012; 87.

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Unlabelled: Cholangiocarcinoma (CCA) presents significant diagnostic challenges, resulting in late patient diagnosis and poor survival rates. Primary sclerosing cholangitis (PSC) patients pose a particularly difficult clinical dilemma because they harbor chronic biliary strictures that are difficult to distinguish from CCA. MicroRNAs (miRs) have recently emerged as a valuable class of diagnostic markers; however, thus far, neither extracellular vesicles (EVs) nor miRs within EVs have been investigated in human bile.

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