[Factors related to a suboptimal bowel preparation for colonoscopy].

Introduction: Colonoscopy is the standard method for the evaluation of the colon. A suitable intestinal cleaning is critical for the effectiveness and security of the procedure, but unfortunately there is a high proportion of suboptimal bowel preparation.

Objective: To identify factors related to suboptimal bowel preparation.

[Assessment of the indications of colonoscopy in the prediction of colon cancer diagnosis].

Objective: To determine the diagnostic value of colonoscopy indications as predictors of colorectal cancer (CRC).

Methods: A retrospective study of colonoscopy indications in Centenary Peruvian Japanese Clinic from 2006 to 2010 was performed. Diagnosis of CRC was considered as dependent variable whereas colonoscopy indications were considered as independent variables.

[Quality indicators for colonoscopy in the Peruvian Japanese Policlinic: linked factors].

Introduction: Colonoscopy is the gold standard for the diagnosis of diseases of the colon and rectum and the primary prevention test for colon cancer. The main indicators of quality in colonoscopy are the rate of complete colonoscopy and the rate of detected adenomas.

Objectives: We aimed to know the rates of cecal intubation and detection of adenomas and to identify factors related to these two quality indicators in colonoscopies performed in the Peruvian Japanese Policlinic during 2007.

Helicobacter pylori from Peruvian amerindians: traces of human migrations in strains from remote Amazon, and genome sequence of an Amerind strain.

Background: The gastric pathogen Helicobacter pylori is extraordinary in its genetic diversity, the differences between strains from well-separated human populations, and the range of diseases that infection promotes.

Principal Findings: Housekeeping gene sequences from H. pylori from residents of an Amerindian village in the Peruvian Amazon, Shimaa, were related to, but not intermingled with, those from Asia.

[Comparative study between manitol 10% and polyethyleneglycol [corrected] in colonoscopic preparation in inpatients of FAP Central Hospital].

Introduction: In search alternatives for colonoscopic preparation, we decided to compare the effectiveness, safety and tolerance of the use of 10% manitol with polyethyleneglycol.

Methods: A prospective, randomized and simple blind study was performed. Eighty consecutive inpatients were prospectively randomized to receive bowel preparation for elective colonoscopy with either 1 liter of 10% manitol (M Group, n=40) or 4 liters of polyethyleneglycol (PEG Group, n=40).

Decrease in prevalence of peptic ulcer and gastric adenocarcinoma at the Policlínico Peruano Japones, Lima, Peru, between the years 1985 and 2002. Analysis of 31,446 patients.

Aim: To determine the prevalence of peptic ulcer and gastric adenocarcinoma in a population of middle and high socio-economic status in Lima, Peru, between 1985 and 2002.

Material And Methods: The prevalence of gastroduodenal ulcer and gastric adenocarcinoma was determined after studying by esophagogastroduodenoscopy 31,446 patients at the Policlínico Peruano Japonds (PPJ) between 1985 and 2002. All patients had chronic upper gastrointestinal symptoms and had endoscopically proven diagnosis of active peptic ulcer or histological diagnosis of gastric adenocarcinoma.

[Comparison of the prevalence of Helicobacter pylori stomach infection in Peruvian and Japanese population].

Objective: To compare the prevalence of Helicobacter pylori infection in native Peruvians and Japaneses residing in Peru.

Methods: Prospective study carried out at "Policlinico Peruano-Japonés" (Lima-Perú). We included Peruvians and Japaneses residing in Peru with chronic symptoms of the upper gastrointestinal tract.

Helicobacter pylori-associated chronic atrophic gastritis involving the gastric body and severe disease by Vibrio cholerae.

Evidence has associated chronic infection by Helicobacter pylori with chronic gastritis, low gastric acid production and an increased risk of life-threatening cholera. However, the relationship of specific patterns of histological damage in the gastric mucosa associated with H. pylori infection and the occurrence of cholera has not been described.

[Omeprazole, amoxicillin and clarithromycin in the treatment of helicobacterpylori, in 7 and 10-day regimens].

Aim: The most accepted treatment for infection by Helicobacter pylori is the proton pump inhibitor based therapy with two antibiotics. However, there is no consensus regarding the duration. The purpose here was to compare eradication percentages in the omeprazole+amoxicillin+clarithromycin regimen administered during 7 days versus 10 days and confront the results with a previous 14-day* experience in Peru.

[CONTRIBUTION STUDY TO THE EPIDEMIOLOGY OF HELICOBACTERPYLORI IN PERU: ANALYSIS OF 3005 CASES].

Compiling our observations from the last 15 years in regard to the epidemiology of Helicobacter pylori in Perú, we have analized 3005 cases. Studying and comparing the rates of infection among japanese inmigrants living in Perú for more than 10 years, niseis, japanese visitors and peruvians, we found similar rates. According to these results it seems that at least in japaneses there is not any genetic predisposition to acquire the infection.

[HELICOBACTER PYLORI, CHRONIC GASTRITIS, GASTRIC ANDDUODENAL ULCER: STUDY OF 1638 PATIENTS].

We anaylize in patients from high socio economic level the histologic findings of biopsies from the gastric mucosa taken endoscopically. Patients with upper gastrointestinal symptoms were examined with esophagogastroduodenoscopy. In the histologic study we considered: presence of Helicobacter pylori, mucinous damage, displasia, atrophy and intestinal metaplasia.