4 results on '"Robert C. Stuart"'
Search Results
2. Consensus Statements for Management of Barrett's Dysplasia and Early-Stage Esophageal Adenocarcinoma, Based on a Delphi Process
- Author
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Rebecca Harrison, Bill Allum, Elaine Kay, S. Michael Griffin, Howard Curtis, Tadakuza Shimoda, Oliver Pech, John M. Inadomi, Michio Hongo, Hugh Barr, Kausilia K. Krishnadath, Gareth Davies, David Hewin, Michael Vieth, Stuart Gittens, Renzo Cestari, Neil A. Shepherd, Scott Sanders, Haythem Ali, Peter Malfertheiner, Douglas A. Corley, M. Brian Fennerty, Nicholas J. Shaheen, Christian Ell, John R. Goldblum, Stephen J. Meltzer, John J.B. Allen, Gary W. Falk, Jaroslaw Regula, Mark K. Ferguson, Gianpaolo Cengia, Jacques J. Bergman, Lars Lundell, David N. Poller, Massimo Rugge, Richard E. Sampliner, Yngve Falck-Ytter, Krish Ragunath, John Hart, Janusz Jankowski, Ian D. Penman, Stephen J. Sontag, Irving Waxman, Yvonne Romero, Toni Lerut, Robert D. Odze, Heike I. Grabsch, Hendrik Manner, Kenneth K. Wang, Sean L. Preston, L. J. Dunn, Stephen Attwood, Juergen Hochberger, Gaius Longcroft-Wheaton, Manoj Nanji, David Johnston, James J. Going, Robert C. Stuart, Nimish Vakil, Thomas W. Rice, Philip Mairs, Hubert J. Stein, Paul Moayyedi, Susi Green, Stuart J. Spechler, David Al Dulaimi, Nicholas J. Talley, David Armstrong, Cathy Bennett, Jan Tack, Lisa Yerian, John deCaestecker, Duncan Loft, Peter Watson, Chris Abley, Amitabh Chak, Iain A. Murray, Mark R Anderson, Ricky Forbes-Young, Laurence Lovat, Chris Haigh, Philip Kaye, Prateek Sharma, Peter J. Kahrilas, Jean Paul Galmiche, Pradeep Bhandari, Tony C.K. Tham, Rajvinder Singh, Grant Fullarton, Charles Gordon, Robert A. Ganz, AGEM - Amsterdam Gastroenterology Endocrinology Metabolism, CCA -Cancer Center Amsterdam, and Gastroenterology and Hepatology
- Subjects
Risk ,medicine.medical_specialty ,Delphi Technique ,Esophageal Neoplasms ,medicine.medical_treatment ,education ,Endoscopic mucosal resection ,Adenocarcinoma ,Barrett Esophagus ,medicine ,Humans ,Stage (cooking) ,Intraepithelial neoplasia ,Hepatology ,business.industry ,General surgery ,Gastroenterology ,Esophageal cancer ,medicine.disease ,digestive system diseases ,Surgery ,Esophagectomy ,surgical procedures, operative ,Dysplasia ,Barrett's esophagus ,Catheter Ablation ,Disease Progression ,Esophagoscopy ,business ,Medical literature - Abstract
Background & Aims Esophageal adenocarcinoma (EA) is increasingly common among patients with Barrett's esophagus (BE). We aimed to provide consensus recommendations based on the medical literature that clinicians could use to manage patients with BE and low-grade dysplasia, high-grade dysplasia (HGD), or early-stage EA. Methods We performed an international, multidisciplinary, systematic, evidence-based review of different management strategies for patients with BE and dysplasia or early-stage EA. We used a Delphi process to develop consensus statements. The results of literature searches were screened using a unique, interactive, Web-based data-sifting platform; we used 11,904 papers to inform the choice of statements selected. An a priori threshold of 80% agreement was used to establish consensus for each statement. Results Eighty-one of the 91 statements achieved consensus despite generally low quality of evidence, including 8 clinical statements: (1) specimens from endoscopic resection are better than biopsies for staging lesions, (2) it is important to carefully map the size of the dysplastic areas, (3) patients that receive ablative or surgical therapy require endoscopic follow-up, (4) high-resolution endoscopy is necessary for accurate diagnosis, (5) endoscopic therapy for HGD is preferred to surveillance, (6) endoscopic therapy for HGD is preferred to surgery, (7) the combination of endoscopic resection and radiofrequency ablation is the most effective therapy, and (8) after endoscopic removal of lesions from patients with HGD, all areas of BE should be ablated. Conclusions We developed a data-sifting platform and used the Delphi process to create evidence-based consensus statements for the management of patients with BE and early-stage EA. This approach identified important clinical features of the diseases and areas for future studies.
- Published
- 2012
3. Genetics of Response to Proton Pump Inhibitor Therapy: Clinical Implications.
- Author
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Euan J. Dickson and Robert C. Stuart
- Subjects
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PROTON pump inhibitors , *GASTRIC acid , *CYTOCHROMES , *ENZYMES , *METABOLISM , *PHENOTYPES , *THERAPEUTICS , *PATIENTS - Abstract
Proton pump inhibitors (PPIs) are highly effective agents for the treatment of gastric acid-related disorders. They are metabolized by the cytochrome P450 (CYP) system, mainly via the enzyme CYP2C19. A genetically determined defect in this pathway results in impaired metabolism of PPIs, giving rise to three distinct phenotypes: rapid extensive (fast), extensive (medium), and poor (slow) metabolizers. These genetic mutations are more common in certain races, and there is, therefore, considerable inter-individual and -ethnic variation in the capacity to metabolize PPIs. The incidence of mutant alleles in a population treated for acid-related disorders may influence the efficacy of the treatment, with clinical implications for the prescribers of PPIs. Therapeutic failure, such as lack of symptom relief, or ineffective Helicobacter pylori eradication, can occur in rapid metabolizers who will have less available drug at a given dose. Conversely, poor metabolizers may be at risk of over-treatment, with increased incidence of adverse effects and unnecessary financial burden. Approaches to this problem include phenotyping or, preferably, genotyping patients prior to treatment with PPIs. This will allow tailoring dose regimens to the individual's metabolic capacity. An alternative strategy is the development of drugs that are either metabolized by genotype-independent pathways or are less susceptible to inter-individual genetic variation. Non-racemic PPIs fall into the latter category, and the first such agent, esomeprazole, is now commercially available. [ABSTRACT FROM AUTHOR]
- Published
- 2003
- Full Text
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4. PG19 THE COST-EFFECTIVENESS OF HIGH-DOSE INTRAVENOUS ESOMEPRAZOLE IN PEPTIC ULCER BLEEDING: A DECISION-TREE MODEL WITH SPANISH COSTS AND NEW CLINICAL DATA
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H Granstedt, Viviane Adam, Joachim Mössner, J Kilhamn, E. J. Kuipers, Tore Lind, Robert C. Stuart, Alan N. Barkun, Bengt Liljas, Jy Lau, Jjy Sung, E Nauclér, and Dennis M. Jensen
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medicine.medical_specialty ,business.industry ,Cost effectiveness ,Health Policy ,Public Health, Environmental and Occupational Health ,medicine ,Peptic ulcer bleeding ,Intensive care medicine ,business ,Decision tree model ,Surgery ,Esomeprazole ,medicine.drug - Full Text
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