[Quadruple treatment with doxycycline, furazolidone, bismuth and proton pump inhibitor is still effective against Helicobacter pylori in our population].

Our objective is to determine the effectiveness of a therapeutic regimen for helicobacter pylori that includes a proton pump inhibitor, doxycycline, furazolidone and bismuth in our location. We carried out a retrospective study, non-randomized, in a private hospital in Lima, Peru. Patients with biopsy and/or rapid urease test proven helicobacter pylori infection after an endoscopy, from January 2017 to October 2022 were included.

[Difficult or Complex Bile duct stones in ERCP: Large Balloon Dilation and other stone management methods. Accumulated experience in a referral Endoscopic Center 2009- 2018.].

Introduction: Bile duct stones constitutes 20% of symptomatic gallbladder disease and difficult stones are one third of this. Endoscopic papillary large balloon dilation (EPLBD) with or without prior endoscopic sphincterotomy (EST) produces excellent outcomes for the treatment of complex or difficult common bile duct (CBD) stones, alone or combined with previous therapeutic options as mechanical lithotripsy (ML) and temporary or definitive stenting.

Objectives: Show success rate, complications and adverse events.

[Lower prevalence of Helicobacter pylori infection observed in patients with erosive esophagitis].

Objectives: To investigate the prevalence of helicobacter pylori infection and the histological type of gastritis in patients with erosive esophagitis and compare these findings with a control group without esophagitis.

Materials And Methods: Prospective study in the settings of a private clinic in Lima, Peru. Each esophagitis and control patient had two biopsies taken from the antrum, two from the corpus as well as two additional samples for the ureasa (CLO) test.

[Utility of the capilar pattern in the NBI diagnosis of superficial lesions of the colon: prospective validation in a private endoscopic center Lima, Peru].

Introduction: It is important to detect and remove adenomas in order to prevent colon cancer. Angiogenesis is an early change in the pre malignant transformation sequence and narrow band imaging (NBI) allows for better visualization of the capillary pattern of the mucosa.

Objective: We present our data regarding the assessment of superficial lesions of the colon on colonoscopies using NBI as well as the Sano-Emura classification.

[Migration of gastrostomy button as a cause of duodenal ulcer and upper digestive bleeding].

PEG or Percutaneous endoscopic gastrostomy is a well known and widely used procedure. With adequate methodology of instrumentation and follow up it has very low rate of complications directly related or non-related to the procedure. Such complications include accidental retirement, wound infection, deterioration of tube, migration to sub-cutaneous tissue and others.

[Polypectomy and endoscopic management of a giant gastric polyp].

Gastric polyps are mainly hyperplastic and benign. They are associated with idiosinchratic factors, genetic or associated to chronic use of pump inhibitors. Endoscopic resection is recommended even though the rate of malignant transformation is very low.

[Prevalence of Helicobacter pylori in a private practice setting in Lima, Peru. Sensitivity of biopsies and rapid urease test].

Introduction: The prevalence of Helicobacter pylori in high and mid social-economic classes in Peru is trending down. This prevalence has not been evaluated at our institution in several years. The sensitivity of biopsies of the different anatomic areas of the stomach has not been evaluated either.

[Expected and unexpected adverse events in the therapeutic endoscopy of the bile duct (ERCP): experience of a private national center in 1356 consecutive cases (1999-2008)].

We report our experience of 10 years in therapeutic procedures of the bile duct (ERCP), describing adverse events or major and minor complications. We describe the associated factors, management, and risk age groups. We comment on the measures taken to prevent and treat them.

[Intrapancreatic mechanical lithotripsy: report and review of the literature of a case in a patient with chronic pancreatitis and lithiasis of Wirsung's duct].

The case of a 34 year-old woman with multiple lithiasis of Wirsung's duct who underwent a modified Puestow's operation is presented. Two (2) months after the surgery, the patient entered with a severe pain chart compatible with acute pancreatitis as a result of chronic pancreatitis. A very large lithiasis is observed in the head of the pancreas.