Clinical practice guideline on the use of single-operator cholangioscopy in the diagnosis of indeterminate biliary stricture and the treatment of difficult biliary stones.

Background And Aims: Single-operator cholangioscopy (SOC) offer a diagnostic and therapeutic alternative with an improved optical resolution over conventional techniques; however, there are no standardized clinical practice guidelines for this technology. This evidence-based guideline from the Colombian Association of Digestive Endoscopy (ACED) intends to support patients, clinicians, and others in decisions about using in adults the SOC compared to endoscopic retrograde cholangiopancreatography (ERCP), to diagnose indeterminate biliary stricture and to manage difficult biliary stones.

Methods: ACED created a multidisciplinary guideline panel balanced to minimize potential bias from conflicts of interest.

[Post-colonoscopy colorectal cancer: Evaluation of a cohort in its clinical and colonoscopic characteristics, survival and its causes according to the World Endoscopy Organization].

Post-colonoscopy colorectal cancer (PCCRC) is a tumor that appears after a normal colonoscopy before the established time for the endoscopic follow up. Its origin reflects the quality of the colonoscopy and the different tumoral biologics between the CRC and the CRCPC. Our aim is to describe the characteristics of the PCCRC in our region, to identify risk factors, to discriminate the potential causes according to the World Endoscopý Organization (WEO) and to determine its impact in the patient's survival.

Ileal reservoir-associated complications in ulcerative colitis versus familial adenomatous polyposis: Impact on patient quality of life.

Background: Proctocolectomy with ileal reservoir is the surgical procedure of choice for patients with ulcerative colitis and familial adenomatous polyposis.

Objectives: To evaluate long-term postoperative complications (1994-2019) in patients operated for familial adenomatous polyposis (FAP) and ulcerative colitis (UC) and the degree of satisfaction with the procedure.

Methods: Observational study based on the analysis of a retrospective database with prospective follow-up in 115 consecutive patients: 79 with UC and 36 with FAP.

The OLGA-OLGIM staging and the interobserver agreement for gastritis and preneoplastic lesion screening: a cross-sectional study.

Stomach cancer (SC) incidence and mortality are relevant public health issues worldwide. In Colombia, screening for preneoplastic lesions (PNL) and the presence of H. pylori is not routinely performed.

[Comparison of manual versus mechanical cervical anastomosis in a prospective series of patients with esophagectomy due to cancer].

Objectives: The scarce existing literature suggests having a lower rate of anastomotic leakage and less late stricture formation after stapled esophagogastric anastomosis compared to the manual anastomosis technique. The aim of the present study is to compare the surgical outcomes of termino-lateral manual cervical anastomosis versus mechanical anastomosis by later lateral stapling, after transhiatal esophagectomy for cancer.

Materials And Methods: A retrospective review of patients undergoing transhiatal esophagectomy with manual or mechanical anastomosis for neoplasia was performed at three institutions in Medellin, between 2011 and 2018.

[Endoscopic dilation of the gastrointestinal tract].

The endoscopic dilation of the gastrointestinal tract is carried out to relieve either functional or organic disorders, secondary to a variety of both benign and malignant diseases. With the advent of new technologies, virtually all digestive stenosis can be managed in a minimally invasive way. Despite its wide dissemination in actual practice, there are few controlled studies comparing the different forms of endoscopic dilation.

[Use of partially covered nitinol stents in malignant gastroduodenal obstructions].

Objective: To demonstrate our experience with self-expanding nitinol duodenal stents in the treatment of inoperable malignant gastroduodenal obstructions.

Materials And Methods: Seventy two (72) patients with malignant gastroduodenal obstruction, 42 men and 30 women, were treated with peroral application of a gastroduodenal nitinol stent. The average age was 61.