William A. Ross

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A population-based prospective epidemiological study was conducted to assess risk factors for equine colic. A stratified sample of 3925 equids in 138 randomly selected equine farms in the state of Michigan was monitored in two 12-month rounds of data collection. Incidence densities were used to describe the rate of development of colic in the study(More)
PURPOSE We conducted a phase II trial of preoperative gemcitabine and cisplatin chemotherapy in addition to chemoradiation (Gem-Cis-XRT) and pancreaticoduodenectomy (PD) for patients with stage I/II pancreatic adenocarcinoma. PATIENTS AND METHODS Chemotherapy consisted of gemcitabine (750 mg/m(2)) and cisplatin (30 mg/m(2)) given every 2 weeks for four(More)
Contemporary treatment programs for patients with potentially resectable pancreatic cancer often involve preoperative therapy. When the duration of preoperative therapy exceeds 2 months, the risk of plastic endobiliary stent occlusion increases. Metal stents have much better patency but may complicate subsequent pancreaticoduodenectomy (PD). We evaluated(More)
BACKGROUND An EUS-guided FNA (EUS-FNA) and a therapeutic ERCP are frequently required for the evaluation of patients who were seen for an obstructing periampullary lesion. OBJECTIVE To determine the feasibility and outcomes of combining an EUS-FNA and a therapeutic ERCP into a single session. DESIGN Retrospective single-center study. SETTING(More)
Endoscopic retrograde biliary drainage (ERBD) with plastic or self-expanding metal stents (SEMS) is often performed for palliative care for cholangiocarcinoma. The objective was to compare the clinical effectiveness, including stent patency, complication rate, and need for salvage percutaneous transhepatic biliary drainage, of SEMS and plastic stents. A(More)
OBJECTIVES The diagnosis of gastrointestinal (GI) graft-versus-host disease (GVHD) is based upon histologic findings in endoscopic mucosal biopsy specimens. The portion of the GI tract with the highest diagnostic yield is a topic of debate. Our aim was to evaluate the sensitivity of simultaneous biopsy of the stomach, duodenum, and rectosigmoid in(More)
AIM To compare the efficacy of metal versus plastic stents for biliary strictures in patients with surgically resectable pancreatic cancer. METHODS The medical records at MD Anderson Caner Center from September 2001 to May 2004 were reviewed. Fifty-five patients were identified to have either a metal biliary stent (13 patients, group A) or a plastic(More)
BACKGROUND The ability of integrated positron emission tomography and computed axial tomography (PET-CT) to detect colonic pathology is not fully defined. The purpose of this study was to assess the ability of PET-CT to detect colonic pathology and to determine the significance of ((18)F)2-fluoro-2-deoxyglucose ((18)F-FDG) activity noted incidentally in the(More)
Both 22- and 25-gauge needles are used for endoscopic ultrasound (EUS)-guided fine-needle aspiration (FNA) of lesions, yet limited data exist on whether either offers an advantage over the other in terms of specimen cellularity and quality. The aim of this study was to compare sample quality for 22- and 25-gauge needles in EUS-guided FNA of pancreatic and(More)
BACKGROUND Self-expandable metal stents (SEMSs) are used to relieve malignant biliary obstruction. OBJECTIVE To compare outcomes between covered self-expandable metal stents (CSEMSs) and uncovered self-expandable metal stents (USEMSs) in malignant biliary obstruction. DESIGN Retrospective cohort study. SETTING Tertiary cancer center. PATIENTS(More)