Nader Roushan

Department of Internal Medicine, Division of gastroenterology, Imam Khomeini hospital, Tehran University of Medical Sciences, Tehran, Iran.

[ 1 ] - Accuracy of pepsinogens for early diagnosis of atrophic gastritis and gastric cancer in Iranian population

  Background: Currently, non-invasive methods for screening atrophic gastritis and gastric cancer are lacking. The purpose of this study was to evaluate the value of serological parameters including serum pepsinogen I (PGI), pepsinogen II (PGII) and pepsinogen I: II ratio for the screening atrophic gastritis and gastric cancer.   Methods : The study population consisted of 132 dyspeptic patient...

[ 2 ] - Pseudoachalasia: a diagnostic challenge

Here, we present a case of a 78-year-old man that underwent gastrointestinal endoscopy because of one- monthhistory of dysphagia to liquids and solid foods with accompanying weight loss. On endoscopy, there was distalesophageal stenosis. Multiple biopsies were obtained. Histologic examination of the samples revealed normaltissue. The stenosis was treated by dilatation and abdomino pelvic comput...

[ 3 ] - Reflux esophagitis in war-related sulfur mustard lung disease

  Background: Sulfur mustard (SM) has acute and chronic effects on skin and mucosal surfaces. The aim of the study was to evaluate the frequency of esophagitis in a historical cohort of veterans who had been exposed to SM in Iran-Iraq war nearly 25 years ago.   Methods : One hundred two veterans with dyspepsia and/or heartburn underwent esophago-gastro-duodenoscopy. Of them, 52 cases had been e...

[ 4 ] - Double-balloon Enteroscopy: The results of a new experience in Iran

  Background : Approach to the small intestine has been difficult even with newer methods. Double-balloon enteroscopy (DBE) has been created for diagnostic and therapeutic interventions in diseases of the small intestine. Small intestinal diseases have different etiologies in each country. The DBE has been introduced in recent years in Iran. Our aim was to study the indications and results of D...

[ 5 ] - Health Literacy Disparities about Hepatitis B: A National Assessment in Iran

Background: Worldwide, about 350 million people are infected with Hepatitis B virus (HBV), most of them in Asia. Up to 1 million of them die due to these sequels annually. Few studies concerned about HBV awareness of Iranians young people. As health education programs should be based on awareness of target group about the disease, we conducted a national survey to evaluate health literacy and v...