Mohammad Shakhatreh

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BACKGROUND The effectiveness of surveillance endoscopy in patients with Barrett's oesophagus (BE) for reducing oesophageal adenocarcinoma (EAC)-related mortality in patients with BE is unclear. METHODS This is a cohort study of patients with BE diagnosed in the National Veterans Affairs hospitals during 2004-2009 excluding those with conditions that(More)
Author Contributions:Dr Grey had full access to all the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis. Study concept and design: Both authors. Acquisition of data: Grey. Analysis and interpretation of data: Both authors. Drafting of the manuscript: Grey. Critical revision of the manuscript for(More)
BACKGROUND Practice guidelines recommend surveillance endoscopy every 2 to 3 years among patients with Barrett's esophagus (BE) to detect early neoplastic lesions. Although surveys report that >95% of gastroenterologists recommend or practice BE surveillance, the extent and patterns of surveillance in clinical practice are unknown. OBJECTIVE To identify(More)
To test the efficacy of ibuprofen in reducing needle electromyography (EMG) pain we studied 30 healthy volunteers randomized to receive placebo or ibuprofen (400 mg) 2 h before EMG using concentric needle electrodes in four muscles. The electromyographer and volunteer were both blinded. Immediately after EMG, subjects reported their experience of pain on a(More)
OBJECTIVES The increasing incidence of esophageal adenocarcinoma (EA) in the United States may have leveled off in recent years. The risk of EA among patients with Barrett's esophagus (BE) seems to be decreasing in several European cohorts, but these estimates are unknown in the United States. We aimed to determine the risk of developing EA in a national(More)
BACKGROUND AND AIMS Pancreatic cysts are becoming more common. Their differential diagnosis includes benign, premalignant, and malignant lesions. Distinguishing the type of cyst helps in the management decision making. We report on a novel tissue acquisition device for pancreatic cysts. METHODS Data on two patients who underwent endoscopic ultrasound(More)
The basis number b(G) of a graphG is defined to be the least integer k such thatG has a kfold basis for its cycle space. In this note, we determine the basis number of the corona of graphs, in fact we prove that b(v ◦T)= 2 for any tree and any vertex v not inT , b(v ◦H)≤ b(H) + 2, where H is any graph and v is not a vertex of H , also we prove that if G= G1(More)
BACKGROUND & AIMS Practice guidelines recommend a 1-time screening endoscopy for patients with gastroesophageal reflux disease (GERD) who are at high risk for Barrett's esophagus or malignancy. However, little is known about the risk of cancer in patients with negative findings from screening endoscopies. METHODS We conducted a retrospective cohort study(More)