Publications by authors named "Hermogenes Diaz-Luis"

Introduction: This study examined the effects of a large-scale flipped learning (FL) approach in an undergraduate course of Digestive System Diseases.

Methods: This prospective non-randomized trial recruited 404 students over three academic years. In 2016, the course was taught entirely in a Traditional Lecture (TL) style, in 2017 half of the course (Medical topics) was replaced by FL while the remaining half (Surgical topics) was taught by TL and in 2018, the whole course was taught entirely by FL.

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Background: Obesity and gastroesophageal reflux disease (GERD) are both high-prevalence diseases in developed nations. Obesity has been identified as an important risk factor in the development of GERD. The objective of this study was to determine the frequency of abnormal esophageal acid exposure in patients candidate for bariatric surgery and its relationship with any clinical and endoscopic findings before surgery.

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Introduction: The introduction of laparoscopic surgery (LS) can be considered the most important advancement in our specialty in the past 25 years. Despite its advantages, implementation and consolidation has not been homogenous, especially for advanced techniques. The aim of this study was to analyse the level of development and use of laparoscopic surgery in Spain at the present time and its evolution in recent years.

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Background: Endoscopic India ink marking techniques are often used for the intraoperative location of colonic polyps and early stage neoplasms. The aim of this study was to compare how effective this technique is compared with conventional localization methods, as well as its influence on the results of colorectal laparoscopy (LSCRC) for endoscopically advanced tumors.

Methods: From January 2003 to January 2005, 47 patients with colorectal carcinomas were included in the study.

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To assess the results of laparoscopic colorectal surgery in patients who have previously undergone abdominal surgery. Between November 2002 and June 2004, 86 patients underwent laparoscopic surgery for colorectal disease at our hospital. Patients were divided into 2 groups depending on whether they had previously undergone abdominal surgery (previous surgery group, n = 27) or not (nonprevious surgery group, n = 59).

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Introduction: The integration of laparoscopic surgery for rectal cancer in clinical practice is one of the challenges faced by surgical societies. The aim of the present study was to analyze the results obtained during the implementation phase of this technique.

Patients And Method: From January 2003 to June 2005, 40 patients with rectal carcinoma underwent laparoscopic surgery in our center.

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We describe a case of huge mucinous cystic tumor of the pancreas in a 26-year-old woman during pregnancy. Ultrasonography demonstrated a well-delimited cystic mass in the left upper abdominal quadrant, suggestive of benignity. Magnetic resonance imaging showed a large cystic mass resembling a mucinous cystic tumor of the pancreas.

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Inflammatory myofibroblastic tumor (IMT) or inflammatory pseudotumor has been described in various organs such as the liver, intestinal tract, spleen, kidney, bladder, lung, peritoneum and heart. However, its appearance in the periampullary region is uncommon and has rarely been reported in the literature. It is characterized histologically by myofibroblastic cell proliferation together with a mixed inflammatory infiltrate that clinically and radiologically mimics a malignant tumor.

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Objectives: The aim of this study was to assess the results of laparoscopic surgery for rectal carcinoma (LSRC) during the learning curve throughout the introduction of this technique at our medical center.

Materials And Methods: From January 2003 to April 2004, 40 patients undergoing surgery were assigned to laparoscopic surgery group (LSG) (n=20) or conventional surgery group (CSG) (n=20). Data were prospectively collected to statistically analyze clinical, anatomopathological, and economic variables.

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