Microvascular structural changes in esophageal squamous cell carcinoma pathology according to intrapapillary capillary loop types under magnifying endoscopy.

Background: The intrapapillary capillary loop (IPCL) characteristics, visualized using magnifying endoscopy, are commonly assessed for preoperative evaluation of the infiltration depth of esophageal squamous cell carcinoma (ESCC). Japan Esophageal Society (JES) classification is the most widely used classification. Microvascular structural changes are evaluated by magnifying endoscopy for the presence or absence of each morphological factor: tortuosity, dilatation, irregular caliber, and different shapes.

Preoperative Tumor Staging of Gastric Cancer: Comparison of Double Contrast-Enhanced Ultrasound and Multidetector Computed Tomography.

Objectives: The purpose of this study was to compare the sensitivity and specificity of double contrast-enhanced ultrasound (CEUS) and multidetector computed tomography (MDCT) in the preoperative tumor staging of gastric cancer (GC) to stratify patients for suitable treatment.

Methods: Fifty-four patients with GC proved by histologic findings were included. The sensitivity and specificity of double CEUS and MDCT for tumor staging were calculated and compared.

Effect of Helicobacter pylori eradication on reflux esophagitis therapy: a multi-center randomized control study.

Background: Helicobacter pylori (H. pylori) frequently colonizes the stomach. Gastroesophageal reflux disease (GERD) is a common and costly disease.

The intrinsic fluorescence spectrum of dilute gastric juice as a novel diagnostic tool for gastric cancer.

Objective: To investigate the intrinsic fluorescence spectrum of gastric juice as a diagnostic method for gastric cancer.

Methods: We collected gastric juice by gastroscopy in 1,870 patients from May 2001 to March 2006, of whom 202 were involved in a preliminary test, 162 in experimental optimization and 1,506 in clinical verification. The best dilution and pH value were chosen in the experimental optimization phase.

[Epidemiology of Helicobacter pylori infection in Shandong and Beijing areas.].

Objectives: To study the current prevalence and recent epidemiological changes of Helicobacter pylori (H. pylori) infection among children and adults residing in regions with high (Muping, Shandong) and low (Yanqing, Beijing) incidence of gastric cancer in China.

Methods: A total of 2065 asymptomatic children aged 8 - 15 years and adults aged 40 - 79 years in the above two regions were examined from May to July 2006.

Recent changes in the prevalence of Helicobacter pylori infection among children and adults in high- or low-incidence regions of gastric cancer in China.

Background: The prevalence of Helicobacter pylori (H. pylori) infection varies by geographic locations. Studies indicate that the infection rate of H.

[The risk factors of reflux esophagitis in Shandong farmers].

Objective: To investigate the risk factors of reflux esophagitis (RE) in farmers of Shandong province.

Methods: Five hundred and fifty six peasants (aged from 34 to 90 years old) were randomly selected from the rural general population in Yantai area, Shandong province. All participants received a face to face interview for relating clinical symptoms.

[The changes of gastric diseases during the past twenty five years].

Objectives: To study the changes of duodenal ulcer, gastric ulcer, gastric cancer and Helicobacter pylori (Hp) infectious status, according to the clinical data of endoscopy in our hospital during the past 25 years.

Methods: The patients with duodenal ulcer, gastric ulcer and gastric cancer diagnosed by endoscopy and pathology had been selected, 104 987 general endoscope cases during the period from Jan. 1980 to Dec.