Publications by authors named "Sergio A Sanchez-Luna"

Article Synopsis
  • The study investigates how an artificial intelligence (AI) tool improves the detection of colorectal polyps during colonoscopy, particularly for patients with poor bowel preparation.
  • Using a case-control design and propensity score matching, researchers analyzed data from 2017 to 2023 to compare colonoscopies performed with and without AI assistance.
  • Results show that AI significantly increased the detection rates of various types of polyps, especially in patients with inadequate preparation, highlighting its potential role in enhancing colonoscopy outcomes.
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Obesity is escalating, projected to affect 17.5% of adults globally and afflict 400 million children by 2035. Managing this intricate and chronic condition demands personalized, multidisciplinary approaches.

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Obesity has extensive health repercussions, and bariatric surgery remains a viable solution to address this issue. This article focuses on the preoperative and postoperative management strategies required to achieve successful and durable outcomes in bariatric surgery patients. Preoperative assessment includes appropriate patient selection, psychosocial evaluation, nutritional analysis, and behavioral/medical counseling.

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Objectives: This study aimed to characterize the clinical outcomes, safety, and efficacy of lumen-apposing metal stents (LAMS) in treating benign gastrointestinal strictures.

Methods: A single-center retrospective review of all patients who underwent LAMS placement for benign strictures from June 2017 to July 2023. Primary outcomes were technical success, early clinical success, late clinical success (LCS), and sustained post-LAMS clinical success (SPLCS).

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Background And Aims: Glucagon-like peptide-1 receptor agonists (GLP-1RAs) are increasingly used in diabetes and obesity management. Although GLP-1RAs delay gastric emptying, their impact on visibility during EGD remains uncertain.

Methods: A 1:1 matched case-control study was conducted.

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Background And Aims: Colorectal cancer (CRC) is a global health challenge, particularly in Alabama, where the incidence rates exceed national averages. This study investigated the factors influencing adherence to post-endoscopic mucosal resection (EMR) colonoscopies, focusing on travel distance and socioeconomic status. This study aimed to provide evidence-based insights to improve patient care in CRC management.

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Malignant recurrent colonic strictures at the anastomotic site are difficult to treat long term with traditional uncovered metal stents due to the location and risk for tumour ingrowth. We present a case with the use of a lumen-apposing metal stent (LAMS) to successfully palliate a high-grade obstruction at an anastomotic site without recurrence of obstructive symptoms for 14 months.

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Despite advances in cross-sectional imaging and endoscopic technology, bile duct strictures remain a challenging clinical entity. It is crucial to make an early determination of benign or malignant nature of biliary strictures. Early diagnosis not only helps with further management but also minimizes mortality and morbidity associated with delayed diagnosis.

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Background And Aims: Data on how to teach endosonographers needle-based confocal laser endomicroscopy (nCLE)-guided histologic diagnosis of pancreatic cystic lesions (PCLs) are limited. Hence, we developed and tested a structured educational program to train early-career endosonographers in nCLE-guided diagnosis of PCLs.

Methods: Twenty-one early-career nCLE-naïve endosonographers watched a teaching module outlining nCLE criteria for diagnosing PCLs.

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Biliary drainage for Perihilar Cholangiocarcinoma (PCCA) can be performed either by endoscopic retrograde cholangiopancreatography or Percutaneous Transhepatic Biliary Drainage (PTBD). To date there is no consensus about which method is preferred. Taking that into account, the aim of this study is to compare Endoscopic Biliary Drainage (EBD) versus percutaneous transhepatic biliary drainage in patients with perihilar cholangiocarcinoma through a systematic review and metanalysis.

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Peroral endoscopic myotomy (POEM) and Heller myotomy with fundoplication (HMF) effectively treat achalasia, an esophageal motor disease. Although a significant number of meta-analyses have compared POEM and HMF, these studies showed discrepant postoperative gastroesophageal reflux disease (GERD) conclusions. This review aimed to objectively compare GERD over time, as well as the efficiency, safety, and adverse events in POEM versus HMF for treating achalasia.

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Introduction: Gastric outlet obstruction (GOO) is usually associated with a poor prognosis and a significant decrease in a patient's quality of life. Endoscopic ultrasound-guided gastroenterostomy (EUS-GE) using lumen-apposing metal stents (LAMS) has emerged as a safe and effective palliation procedure for GOO in patients that are unfit for surgery. Without an exclusive gold-standard technique for EUS-GE, we aimed to compare the currently available ones in this systematic review and meta-analysis, the first on this subspecialty.

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Introduction: The duodenal-jejunal bypass liner (DJBL) is a less-invasive treatment of obesity and type 2 diabetes mellitus (T2DM).

Methods: This is a systematic review and meta-analysis including randomized clinical trials (RCTs) comparing DJBL versus sham or pharmacotherapies aiming to evaluate the effectiveness and safety of DJBL.

Results: Ten RCTs (681 patients) were included.

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Article Synopsis
  • A systematic review and meta-analysis was conducted to evaluate the effectiveness of antibiotic prophylaxis in reducing complications for patients undergoing elective endoscopic retrograde cholangiopancreatography (ERCP).
  • The review included 10 randomized controlled trials with a total of 1757 patients, assessing various outcomes like cholangitis, septicemia, and pancreatitis.
  • Results showed no significant difference in major complications between antibiotic and non-antibiotic groups, but antibiotic prophylaxis did reduce the risk of bacteremia by 7%.
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Endoscopic retrograde cholangiopancreatography (ERCP) is a therapeutic procedure for skilled endoscopists that can be even more challenging in some situations, including patients' post-Roux-en-y Gastric Bypass (RYGB) surgery. There is still no consensus on whether laparoscopic-assisted ERCP (LA-ERCP) or endoscopic ultrasound (EUS)-directed transgastric ERCP (EDGE) is the most appropriate, safe, and feasible approach in patients with this type of post-surgical anatomy. This systematic review and meta-analysis aimed to examine both approaches' feasibility, efficacy, and safety in this situation.

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Background And Aim: Surgical cholecystectomy is the gold standard strategy for the management of acute cholecystitis (AC). However, some patients are considered unfit for surgery due to certain comorbid conditions. As such, we aimed to compare less invasive treatment strategies such as endoscopic ultrasound-guided gallbladder drainage (EUS-GBD) and percutaneous gallbladder drainage (PT-GBD) for the management of patients with AC who are suboptimal candidates for surgical cholecystectomy.

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Self-expanding metal stents (SEMS) are an effective palliative endoscopic therapy to reduce dysphagia in esophageal cancer. Gastroesophageal reflux disease (GERD) is a relatively common complaint after non-valved conventional SEMS placement. Therefore, valved self-expanding metal stents (SEMS-V) were designed to reduce the rate of GERD symptoms.

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Article Synopsis
  • - This study examined gastrointestinal (GI) symptoms in hospitalized COVID-19 patients across multiple countries to understand how frequently these symptoms occur and their relationship to the severity of the disease.
  • - Among 829 patients, common GI symptoms included anorexia, diarrhea, nausea/vomiting, and abdominal pain, but these were generally mild, resolved quickly, and not linked to worse COVID-19 outcomes.
  • - The research also found that a significant number of patients experienced liver injury, but similar to the GI symptoms, it did not correlate with the severity of COVID-19 illness.
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Background: Achalasia is a rare benign esophageal motor disorder characterized by incomplete relaxation of the lower esophageal sphincter (LES). The treatment of achalasia is not curative, but rather is aimed at reducing LES pressure. In patients who have failed noninvasive therapy, surgery should be considered.

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Bariatric surgery remains the most effective treatment for morbid obesity and its comorbidities. However, post-surgical leaks and fistulas can occur in about 1-5% of patients, with challenging treatment approaches. Endoscopic vacuum therapy (EVT) has emerged as a promising tool due to its satisfactory results and accessibility.

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Background And Aim: Endoscopic resection (ER) is the preferred approach to treat early gastric cancer (EGC) in patients without suspected lymph node involvement and that meet the criteria for ER. Surgery is a more aggressive treatment, but it may be associated with less recurrence and the need for reintervention. Previous meta-analyses comparing ER with surgery for EGC did not incorporate the most recent studies, making accurate conclusions not possible.

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Article Synopsis
  • - A new standardized scoring system called the Toronto Upper Gastrointestinal Cleaning Score (TUGCS) was developed to improve the assessment of mucosal visualization during esophagogastroduodenoscopy (EGD) using a consensus methodology involving expert feedback.
  • - After three rounds of review with 14 experts, the TUGCS showed high inter-rater reliability (0.79) and strong test-retest reliability (0.83), indicating consistent results among different assessors over time.
  • - The TUGCS demonstrated strong validity, correlating positively with an independent assessment of mucosal visualization, suggesting it could be widely adopted in clinical practice for better EGD quality assessment.
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