Publications by authors named "Josue Aliaga Ramos"

Background And Aims: Zenker's diverticulum (ZD) is the most common type of esophageal diverticulum. We conducted a systematic review and meta-analysis aiming to compare the effectiveness and safety of endoscopic submucosal tunneling techniques (ESTT) and flexible endoscopic septotomy (FES) for treating patients with ZD, including subgroup analyses by follow-up duration (<12 months and ≥12 months), diverticulum size (<2.5cm and ≥2.

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Background/aims: Polyethylene glycol (PEG) is considered the gold standard regimen for bowel preparation; however, due to the necessity of a large volume, patient tolerance is impaired. Therefore, lactulose is a novel alternative for colonoscopy preparation. This study aimed to investigate the efficacy and safety of lactulose-based bowel preparations in comparison with PEG for colonoscopy.

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Objectives: Biliary access refractory to conventional cannulation techniques is a challenging clinical scenario for most endoscopists. The endoscopic-percutaneous rendezvous technique is an optimal alternative with high success rates and low complication rates in expert hands, however its routine use in the West, mainly in Latin America, is still limited. The aim of our study was to evaluate the feasibility, efficacy and safety of endoscopic-percutaneous rendezvous in the management of difficult biliary tract in an endoscopic center in Peru.

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Background: The use of antifoaming and mucolytic agents prior to upper gastrointestinal (GI) endoscopy and a thorough systematic review are essential to optimize lesion detection. This study evaluated the effect of simethicone and N-acetylcysteine on the adequate mucosal visibility (AMV) of the upper GI tract by an innovative systematic method.

Methods: This randomized, double-blind controlled trial included consecutive patients who underwent diagnostic upper GI endoscopy for screening for early neoplasms between August 2019 and December 2019.

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•This study aimed to assess the learning curve effect on patient's clinical outcome for EESD. Retrospective observational study, enrolling patients that underwent EESD from 2009 to 2021, divided in 2 groups. Mean procedure time was 111.

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Background/aims: Endoscopic submucosal dissection (ESD) is currently considered the first-line treatment for the eradication of superficial neoplasms of the esophagus in Eastern countries. However, in the West, particularly in Latin America, the experience with esophageal ESD is still limited because of the high technical complexity required for its execution. This study aimed to present the results of the clinical application of ESD to manage superficial esophageal neoplasms in a Latin American center in over 100 consecutive cases.

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Video capsule endoscopy (VCE) is currently considered the first-line study in the evaluation of the small bowel (SB). Retrospective study including consecutive patients from 2010 to 2021 in two referral endoscopic centers in Peru, who underwent VCE. Inclusion criteria were patients with middle gastrointestinal bleeding, chronic diarrhea and unexplained chronic abdominal pain (endoscopic studies prior to VCE: normal).

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Esophageal strictures (ES) occur frequently after semi-circumferential endoscopic submucosal dissection (ESD) for the eradication of superficial esophageal neoplasms and negatively impact a patient's quality of life. Oral corticosteroids have been shown to be clinically effective, but the most appropriate drug, dose and duration is yet to be determined. The aim of the study was to investigate the clinical effectiveness and safety of 30 mg prednisone with a shortened tapering schedule on ES after semi-circumferential ESD.

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Different substances are used for submucosal injection in order to perform a safe endoscopic mucosal resection. Viscous solutions such as sodium hyaluronate are currently considered as the first line substances for submucosal injection. This product produces a durable lifting of the mucosa.

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Background: The standard of practice when a superficial lesion was identified during upper GI endoscopy is to take an endoscopic forceps biopsy (EFB) of the lesion. The histopathologic findings then will determine the management plan. Endoscopic submucosal dissection (ESD) enables en-bloc resection for early neoplasms of the gastrointestinal tract and provides an adequate specimen that permits a more reliable histopathologic assessment.

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Submucosal (SM) injection is a critical step in endoscopic submucosal dissection (ESD). In Japan, use of viscous solutions such as sodium hyaluronate are recommended; the commercially product available is MucoUp (Seikagaku Co. and Boston Scientific Japan Co.

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Barrett's esophagus (BE) is a relatively common clinical entity with an important impact on the quality of life of these patients. The incidence of this pathology has been increasing in recent years due to an increase in the occurrence of predisposing factors such as gastroesophageal reflux disease. BE carries an oncogenic potential with the development of dysplasia or esophageal adenocarcinoma.

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Unlabelled: Helicobacter pylori (Hp) infection is associated with multiple digestive problems from gastroduodenal ulcers to gastric adenocarcinoma and/or MALT lymphoma. Peru is considered a place of high prevalence of Hp. In the world, significant differences have been described in the prevalence of Hp infection associated with the socioeconomic characteristics of the population.

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Introduction: Kaposi sarcoma is a low-grade angioproliferative neoplasm strongly associated with infection by herpes virus type 8 (HHV-8). Gastrointestinal (GI) involvement is an infrequent finding, whose clinical and endoscopic characteristics are poorly defined in the literature.

Objective: The aim of our study was to describe the clinical and endoscopic findings of patients with gastrointestinal Kaposi Sarcoma.

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Vascular abnormalities of the gastrointestinal tract are a common cause of gastrointestinal bleeding. Most of them are located within the reach of the upper endoscopy or colonoscopy, although once discarded, it forces to consider small bowel as the source of bleeding. The successful management of a gastrointestinal bleeding depends mainly on the timely location of the source of bleeding.

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Meckel's diverticulum is a rare clinical entity in clinical practice. However, it should be considered as an important differential diagnosis in patients with both obscure overt and occult gastrointestinal bleeding. Years ago, the evaluation of the small bowel was impossible without surgery, nowadays the development of new diagnostic methods has changed this horizon.

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Ischemic Hepatitis is an uncommon entity in daily clinical practice with a prevalence of 0.16 to 0.5% among patients admitted to a critical care unit, associated with an approximate 60% mortality rate.

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