Prevalence of Helicobacter pylori Infection in Dyspeptic Patients in Iran

Although Helicobacter pylori (H. pylori) infection has been known to be associated with several upper gastrointestinal disorders such as peptic ulcer and gastric cancer, the relationship between H. pylori infection and dyspeptic symptoms remains controversial. Furthermore, it is still not clear which factors are associated with H. pylori infection in the Iranian population. We investigated the prevalence of H. pylori infection in dyspeptic patients and factors associated with H. pylori infection in the Iranian population. In this cross-sectional study, 303 patients with dyspeptic symptoms underwent endoscopy. Clinical data and a questionnaire about gastrointestinal symptoms were collected from each patient. H. pylori status was evaluated by histological examination. Among the 303 patients, 263 (86.8%) were found to be positive for H. pylori. The prevalence of H. pylori infection decreased significantly with age. There was no difference in the prevalence of H. pylori infection between the patients with and those without a family history of gastroduodenal diseases. Among 250 patients with abdominal pain, 219 (87.6%) were infected with H. pylori. Among 211 patients with epigastric abdominal pain, 185 (87.7%) were infected with H. pylori. It was observed that belching was significantly associated with H. pylori infection (P = 0.03). Dyspepsia triggered by the consumption of tea was higher in H. pylori-positive patients than in H. pylori-negative patients (P = 0.03). The prevalence of H. pylori infection in dyspeptic patients was quite high in Iran. Belching and dyspepsia triggered by tea consumption was related with H. pylori infection

Cholangiographic Features in Opium-Addicted Patients at a Tertiary Hospital in Iran

Background/Aims. Destructive and metabolic changes in hepatobiliary system have been demonstrated following opium use; however, cholangiographic features of bile ducts in opium-addicted patients with sphincter of Oddi dysfunction are not clearly determined. We described these differences and assessed the effects of opium use on postendoscopic retrograde cholangiopancreatography complications. Methodology. One hundred and nineteen patients with the diagnosis of sphinctre of Oddi dysfunction according to the Geenen-Hogan classification were studied. Eight patients were confirmed opium-addicted and others were nonaddicted. Change of serum amylase concentrations after endoscopic retrograde cholangiopancreatography and clinical diagnosis of addicted and non-addicted patients were compared. Results. Serum concentrations of liver aminotransferases and alkaline phosphatase were similar between the two groups. Serum concentration of amylase before endoscopic retrograde cholangiopancreatography was similar between them, whereas concentration of this enzyme was higher in nonaddicted ones after endoscopic retrograde cholangiopancreatography. Regarding pathologic changes in papilla, opium addiction group in comparison with control group statistically showed more tumoral features (25.0% versus 5.4%) and ulcerated changes (12.5% versus 0.0%). Conclusions. Opium use can increase probability of papilla ulcerative and tumoral changes in patients with sphinctre of Oddi dysfunction. Postendoscopic retrograde cholangiopancreatography serum amylase level may be reduced following opium addiction

Preventive Role of Wire-Guided Cannulation to Reduce Hyperamylasemia and Pancreatitis Following Endoscopic Retrograde Cholangiopancreatography

Background and Study Aims. The usefulness of wire-guided cannulation for avoiding hyperamylasemia and pancreatitis following endoscopic retrograde cholangiopancreatography (ERCP) is conflicting, and therefore we designed this study to determine whether wire-guided cannulation reduces the rate of post-ERCP hyperamylasemia and pancreatitis and compare its efficacy to conventional method. Patients and Methods. Seven hundred and forty-eight patients with hepatobiliary diseases consecutively underwent diagnostic or therapeutic ERCP at the unit of Taleghani referral hospital in Tehran. Among them, 546 patients were eligible for wire-guided cannulation and underwent this procedure and others underwent sphincterotome biliary cannulation using contrast injection as the conventional method. Results. Patients in the two groups were comparable in terms of gender and age. Successful biliary cannulation was achieved similary in the guidewire and conventional group (89.2% versus 86.4%) that in 5.4% and 14.1% of them it was difficultly performed, respectively (P=0.003). The main pancreatic duct was more visualized in 99.0% of patients in conventional group in comparison with 79.0% in another group (P<0.001). Multivariate regression analysis showed that wire-guided cannulation had a protective role for post-ERCP hyperamylasemia (OR: 0.336, 95% CI: 0.181–0.623, P<0.001). However, there were no significant differences between the two groups in rates of other procedure-related complications, such as, pancreatitis, bleeding, and perforation. Conclusion. The use of guidewire cannulation in comparison with conventional method can be accompanied with lower post-ERCP hyperamylasemia, and therefore selection of this cannulation technique especially in high-risk group is recommended

Is ESR Important for Predicting Post-ERCP Pancreatitis?

Background Pancreatitis remains the most common complication of endoscopic retrograde cholangiopancreatography (ERCP), resulting in substantial morbidity and occasional mortality. There are notable controversies and conflicting reports about risk factors of post-ERCP pancreatitis (PEP). Aim To evaluate the potential risk factors for PEP at a referral tertiary center, as a sample of the Iranian population. Materials and Methods Baseline characteristics and clinical as well as paraclinical information of 780 patients undergoing diagnostic and therapeutic ERCP at Taleghani hospital in Tehran between 2008 and 2012 were reviewed. Data were collected prior to the ERCP, at the time of the procedure, and 24-72 hours after discharge. PEP was diagnosed according to consensus criteria. Results Of the 780 patients who underwent diagnostic ERCP, pancreatitis developed in 26 patients (3.3%). In the multivariable risk model, significant risk factors with adjusted odds ratios (ORs) were age 30 (OR = 6.414, P < 0.001). Female gender, history of recurrent pancreatitis, pre-ERCP hyperamylasemia, and difficult or failed cannulation could not predict PEP. There was no significant difference in the rate of PEP in wire-guided cannulation versus biliary cannulation using a sphincterotome and contrast injection as the conventional method. Conclusions Performing ERCP may be safer in the elderly. Patients with high ESR may be at greater risk of PEP, which warrants close observation of these patients for signs of pancreatitis after ERCP