Pathology results of endoscopic ultrasound-guided tissue acquisition in retroperitoneal masses: a multicenter study.

Background: Malignant etiologies are found in 70-80% of symptomatic retroperitoneal masses. Histology is required for diagnosis and treatment. Information about endoscopic ultrasound (EUS)-guided tissue acquisition (EUS-GTA) is scant for retroperitoneal masses.

Endoscopic Ultrasound in Pediatric Patients With Pancreatobiliary Disease.

Background: Endoscopic ultrasound (EUS) is one of the greatest advances of the last few decades for the diagnostic and therapeutic approach of gastrointestinal diseases in adults. However, there are limitations to the application of the procedure in the pediatric population. The aim of this study was to describe the diagnostic yield and therapeutic role of EUS in pediatric patients with pancreatobiliary disease.

Biliary Drainage in Patients With Failed ERCP: Percutaneous Versus EUS-guided Drainage.

Aim: The goal of the study is to compare the efficacy and safety of bile duct drains guided by endoscopic ultrasound-guided biliary drainage (EGBD) versus percutaneous transhepatic biliary drainage (PTBD).

Materials And Methods: Retrospective comparative study. Patients with obstruction of the bile duct who underwent the EGBD or PTBD procedure and had at least 1 previous endoscopic retrograde cholangiopancreatography that failed or was inaccessible to the second duodenal portion were included.

Diagnostic yield and therapeutic impact of rectal retroflexion: a prospective, single-blind study conducted in three centers.

Background/aims: No clear data have been established and validated regarding whether rectal retroflexion has an important and therapeutic impact. The aim of the present study was to evaluate the diagnostic yield and therapeutic impact of rectal retroflexion compared with straight view examination.

Methods: A prospective single-blind study was conducted.

Vascular invasion in pancreatic cancer: predictive values for endoscopic ultrasound and computed tomography imaging.

Objectives: To evaluate the accuracy of endoscopic ultrasound (EUS) to determine vascular invasion in patients with pancreatic cancer.

Methods: Data were obtained prospectively from patients with a pancreatic lesion who underwent EUS, computed tomographic (CT) imaging, and surgery from March 2005 to March 2010.

Results: Fifty patients were included with a mean ± SD age 61 ± 11.

PPIs are not associated with a lower incidence of portal-hypertension-related bleeding in cirrhosis.

Aim: To determine if proton pump inhibitor use in cirrhotic patients with endoscopic findings of portal hypertension is associated with a lower frequency of gastrointestinal bleeding.

Methods: Patients with cirrhosis and endoscopic findings related to portal hypertension, receiving or not receiving proton pump inhibitor (PPI) therapy, were included retrospectively. We assigned patients to two groups: group 1 patients underwent PPI therapy and group 2 patients did not undergo PPI therapy.

Utility of a simplified predictive model to predict rebleeding in patients with high-risk stigmata ulcers.

Aim: To evaluate a simplified Predictive Model (sPM) to predict rebleeding in patients with high-risk stigmata ulcers.

Patients And Methods: Retrospectively, patients seen from March 2002 to September 2007 with peptic ulcers Forrest Ia, Ib, IIa and/or IIb were included. A sPM based on modified Blatchford Score Risk System (mBRS) was used.

Endoscopic treatment with argon plasma coagulation in postradiation proctopathy.

Introduction: Postradiation proctopathy (PP) is a major complication in patients who receive radiotherapy for cancer. Medical treatments of this entity are unsatisfactory. Argon plasma coagulation (APC) had been shown to be successful with low complications.

Upper gastrointestinal dieulafoy's lesions and endoscopie treatment: first report from a mexican centre.

The aim was to evaluate the initial success, rebleeding rate, need for emergent surgery, and mortality rates of patients with Dieulafoy's lesion (DL) and endoscopic treatment (ET). Patients with DL from a tertiary center were included. We included 20 patients with follow-up of 90 (60-550) days.

Salmonella sp group A: a rare cause of bacterascites. A case report.

Bacterascites (BA) is a minimally studied and defined entity. Its prognosis and clinical course are not well defined, and currently there are no management guidelines. We present a rare cause of BA in which Salmonella sp group A was isolated in a 44 year old man with cirrhosis who had diarrhea and fever three days earlier.

Prevalence of metabolic syndrome, obesity and diabetes type 2 in cryptogenic cirrhosis.

Aim: To evaluate the prevalence of metabolic syndrome (MS), obesity and type 2 diabetes mellitus (T2DM) in a group of Mexican Mestizo patients with cryptogenic cirrhosis (CC) and to compare this group with patients with cirrhosis secondary to other causes (disease controls).

Methods: Patients with CC, diagnosed between January, 1990 and April, 2005, were included in a retrospective study. Patients with cirrhosis caused by chronic hepatitis C, alcohol abuse or autoimmune hepatitis (AIH) served as disease controls.

[Factors associated with microalbuminuria in non-hypertensive type-2 diabetes patients].

Introduction: Microalbuminuria is a well known risk factor for renal damage and for cardiovascular disease in type-2 diabetic patients.

Objective: To evaluate anthropometric, laboratory, and diet factors related to the presence of microalbuminuria in non-hypertensive type 2 diabetic subjects.

Material And Methods: We carry-out an assessment of a group of non-hypertensive diabetic patients with or without microalbuminuria.

[Critical analysis of awards in gastroenterology research. The Mexican experience].

The impact of Mexican gastrointestinal research worldwide is limited and the outcome of the best research papers awarded by the Asociación Mexicana de Gastroenterología (AMG) is unknown. The objective of this study was to analyze the publication pattern of the research work, awarded by the AMG and their impact in international journals. The abstracts accepted for the annual meeting of the AMG from 1998 to 2006 were reviewed.

Endoscopic treatment of high-risk bleeding ulcers: success, rebleeding and mortality.

Introduction And Aims: Endoscopic treatment of peptic ulcers with high-risk stigmata has been probed. The rates of recurrent bleeding, need for emergent surgery and death are related to Forrest Classification, Blatchford's modified risk score and the kind of endoscopic treatment used (monotherapy vs. dual).