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Mitropoulou G, Brandenberg N, Hoehnel S, Ceroni C, Balmpouzis Z, Blanchon S, Dorta G, Sauty A, Koutsokera A. Rectal organoid-guided CFTR modulator therapy restores lung function in a cystic fibrosis patient with the rare 1677delTA/R334W genotype. Eur Respir J 2022; 60:2201341. [PMID: 36423906 DOI: 10.1183/13993003.01341-2022] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 10/31/2022] [Indexed: 11/25/2022]
Affiliation(s)
- Georgia Mitropoulou
- Adult Cystic Fibrosis and CFTR-related disorders Center, Division of Pulmonology, Dept of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
- Lung Transplant Center, Division of Pulmonology, Dept of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Nathalie Brandenberg
- Laboratory of Stem Cell Bioengineering, Institute of Bioengineering, School of Life Sciences, Swiss Federal Institute of Technology, Lausanne, Switzerland
- SUN bioscience, EPFL Innovation Park, Lausanne, Switzerland
| | - Sylke Hoehnel
- Laboratory of Stem Cell Bioengineering, Institute of Bioengineering, School of Life Sciences, Swiss Federal Institute of Technology, Lausanne, Switzerland
- SUN bioscience, EPFL Innovation Park, Lausanne, Switzerland
| | - Camilla Ceroni
- Laboratory of Stem Cell Bioengineering, Institute of Bioengineering, School of Life Sciences, Swiss Federal Institute of Technology, Lausanne, Switzerland
- SUN bioscience, EPFL Innovation Park, Lausanne, Switzerland
| | - Zisis Balmpouzis
- Adult Cystic Fibrosis and CFTR-related disorders Center, Division of Pulmonology, Dept of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
- Lung Transplant Center, Division of Pulmonology, Dept of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Sylvain Blanchon
- Paediatric Pulmonology and Cystic Fibrosis Unit, Division of Paediatrics, Dept Woman-Mother-Child, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Gian Dorta
- Division of Gastro-enterology, Dept of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Alain Sauty
- Adult Cystic Fibrosis and CFTR-related disorders Center, Division of Pulmonology, Dept of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
- Division of Pulmonology, Dept of Medicine, Neuchâtel Hospital Network, Neuchâtel, Switzerland
- These authors contributed equally
| | - Angela Koutsokera
- Adult Cystic Fibrosis and CFTR-related disorders Center, Division of Pulmonology, Dept of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
- Lung Transplant Center, Division of Pulmonology, Dept of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
- These authors contributed equally
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Pillai N, Lupatsch JE, Dusheiko M, Schwenkglenks M, Maillard M, Sutherland CS, Pittet VEH, Anderegg C, Bauerfeind P, Beglinger C, Begré S, Belli D, Bengoa JM, Biedermann L, Bigler B, Binek J, Blattmann M, Boehm S, Borovicka J, Braegger CP, Brunner N, Bühr P, Burnand B, Burri E, Buyse S, Cremer M, Criblez DH, de Saussure P, Degen L, Delarive J, Doerig C, Dora B, Dorta G, Egger M, Ehmann T, El-Wafa A, Engelmann M, Ezri J, Felley C, Fliegner M, Fournier N, Fraga M, Frei P, Frei R, Fried M, Froehlich F, Funk C, Furlano RI, Gallot-Lavallée S, Geyer M, Girardin M, Golay D, Grandinetti T, Gysi B, Haack H, Haarer J, Helbling B, Hengstler P, Herzog D, Hess C, Heyland K, Hinterleitner T, Hiroz P, Hirschi C, Hruz P, Iwata R, Jost R, Juillerat P, Keller C, Knellwolf C, Knoblauch C, Köhler H, Koller R, Krieger-Grübel C, Kullak-Ublick G, Künzler P, Landolt M, Lange R, Lehmann FS, Macpherson A, Maerten P, Maillard MH, Manser C, Manz M, Marbet U, Marx G, Matter C, Meier R, Mendanova M, Michetti P, Misselwitz B, Morell B, Mosler P, Mottet C, Müller C, Müller P, Müllhaupt B, Münger-Beyeler C, Musso L, Nagy A, Neagu M, Nichita C, Niess J, Nydegger A, Obialo N, Oneta C, Oropesa C, Peter U, Peternac D, Petit LM, Piccoli-Gfeller F, Pilz JB, Pittet V, Raschle N, Rentsch R, Restellini S, Richterich JP, Rihs S, Ritz MA, Roduit J, Rogler D, Rogler G, Rossel JB, Rueger V, Saner G, Sauter B, Sawatzki M, Schäppi M, Scharl M, Scharl S, Schelling M, Schibli S, Schlauri H, Uebelhart SS, Schnegg JF, Schoepfer A, Seibold F, Seirafi M, Semadeni GM, Semela D, Senning A, Sidler M, Sokollik C, Spalinger J, Spangenberger H, Stadler P, Steuerwald M, Straumann A, Straumann-Funk B, Sulz M, Suter A, Thorens J, Tiedemann S, Tutuian R, Vavricka S, Viani F, Vögtlin J, Von Känel R, Vonlaufen A, Vouillamoz D, Vulliamy R, Wermuth J, Werner H, Wiesel P, Wiest R, Wylie T, Zeitz J, Zimmermann D. Evaluating the Cost-Effectiveness of Early Compared with Late or No Biologic Treatment to Manage Crohn's Disease using Real-World Data. J Crohns Colitis 2020; 14:490-500. [PMID: 31630164 DOI: 10.1093/ecco-jcc/jjz169] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS We evaluated the cost-effectiveness of early [≤2 years after diagnosis] compared with late or no biologic initiation [starting biologics >2 years after diagnosis or no biologic use] for adults with Crohn's disease in Switzerland. METHODS We developed a Markov cohort model over the patient's lifetime, from the health system and societal perspectives. Transition probabilities, quality of life, and costs were estimated using real-world data. Propensity score matching was used to ensure comparability between patients in the early [intervention] and late/no [comparator] biologic initiation strategies. The incremental cost-effectiveness ratio [ICER] per quality-adjusted life year [QALY] gained is reported in Swiss francs [CHF]. Sensitivity and scenario analyses were performed. RESULTS Total costs and QALYs were higher for the intervention [CHF384 607; 16.84 QALYs] compared with the comparator [CHF340 800; 16.75 QALYs] strategy, resulting in high ICERs [health system: CHF887 450 per QALY; societal: CHF449 130 per QALY]. In probabilistic sensitivity analysis, assuming a threshold of CHF100 000 per QALY, the probability that the intervention strategy was cost-effective was 0.1 and 0.25 from the health system and societal perspectives, respectively. In addition, ICERs improved when we assumed a 30% reduction in biologic prices [health system: CHF134 502 per QALY; societal: intervention dominant]. CONCLUSIONS Early biologic use was not cost-effective, considering a threshold of CHF100 000 per QALY compared with late/no biologic use. However, early identification of patients likely to need biologics and future drug price reductions through increased availability of biosimilars may improve the cost-effectiveness of an early treatment approach.
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Affiliation(s)
- Nadia Pillai
- Center for Primary Care and Public Health [Unisanté], University of Lausanne, Lausanne, Switzerland
| | - Judith E Lupatsch
- Institute of Pharmaceutical Medicine [ECPM], University of Basel, Basel, Switzerland
| | - Mark Dusheiko
- Center for Primary Care and Public Health [Unisanté], University of Lausanne, Lausanne, Switzerland.,Faculty of Business and Economics [HEC], University of Lausanne, Lausanne, Switzerland
| | | | - Michel Maillard
- Crohn and Colitis Center, Gastroentérologie Beaulieu SA, Lausanne, Switzerland.,Service of Gastroenterology and Hepatology, Lausanne University Hospital, Lausanne, Switzerland
| | - C Simone Sutherland
- Institute of Pharmaceutical Medicine [ECPM], University of Basel, Basel, Switzerland
| | - Valérie E H Pittet
- Center for Primary Care and Public Health [Unisanté], University of Lausanne, Lausanne, Switzerland
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Morgenthaler S, Lindsay H, Ciarloni L, Angelino P, Dorta G, Delorenzi M, Ehrensberger SH. Analysis of NGS-based blood immune cell RNA signatures for colorectal cancer detection. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz447.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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4
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Angelino P, Hosseinian Ehrensberger S, Ciarloni L, Despraz J, Dorta G, Perez-Uribe A, Morgenthaler S, Delorenzi M. Discovery of an immunotranscriptomics signature in blood for early colorectal cancer detection. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz239.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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5
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Saglietti C, Schneider V, Bongiovanni M, Missiaglia E, Bisig B, Dorta G, Demartines N, Sempoux C, La Rosa S. Acinar cell carcinoma of the pancreas with thyroid-like follicular features: first description of a new diagnostic challenging subtype. Virchows Arch 2019; 475:789-794. [PMID: 31338587 DOI: 10.1007/s00428-019-02628-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 07/15/2019] [Accepted: 07/17/2019] [Indexed: 12/19/2022]
Abstract
Acinar cell carcinomas (ACCs) of the pancreas are a heterogeneous group of neoplasms showing a wide spectrum of morphological features including acinar, solid, glandular, and trabecular architecture. In addition, uncommon cytological aspects have recently been described and include oncocytic, spindle, clear, and pleomorphic cell types. This wide histological spectrum represents a challenge in the diagnostic task for pathologists. Molecular mechanisms involved in the onset and progression of ACCs are not completely known, but, in general, they differ from those observed in ductal adenocarcinomas or neuroendocrine neoplasms of the pancreas and frequently include alterations in the APC/β-catenin pathway. In the present paper, we describe a new variant of ACC showing thyroid-like follicular features and CTNNB1 mutation. This phenotype needs to be included in the spectrum of morphological presentation of ACC.
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Affiliation(s)
- Chiara Saglietti
- Institute of Pathology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Vanessa Schneider
- Institute of Pathology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Massimo Bongiovanni
- Institute of Pathology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Edoardo Missiaglia
- Institute of Pathology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Bettina Bisig
- Institute of Pathology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Gian Dorta
- Department of Gastroenterology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Nicolas Demartines
- Department of Visceral Surgery, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Christine Sempoux
- Institute of Pathology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Stefano La Rosa
- Institute of Pathology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.
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6
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Pittet V, Michetti P, Mueller C, Braegger CP, von Känel R, Schoepfer A, Macpherson AJ, Rogler G, Anderegg C, Bauerfeind P, Beglinger C, Begré S, Belli D, Bengoa JM, Biedermann L, Bigler B, Binek J, Blattmann M, Boehm S, Borovicka J, Braegger CP, Brunner N, Bühr P, Burnand B, Burri E, Buyse S, Cremer M, Criblez DH, de Saussure P, Degen L, Delarive J, Doerig C, Dora B, Dorta G, Egger M, Ehmann T, El-Wafa A, Engelmann M, Ezri J, Felley C, Fliegner M, Fournier N, Fraga M, Frei P, Frei PR, Fried M, Froehlich F, Funk C, Furlano RI, Gallot-Lavallée S, Geyer M, Girardin M, Golay D, Grandinetti T, Gysi B, Haack H, Haarer J, Helbling B, Hengstler P, Herzog D, Hess C, Heyland K, Hinterleitner T, Hiroz P, Hirschi C, Hruz P, Iwata R, Jost R, Juillerat P, Keller C, Knellwolf C, Knoblauch C, Köhler H, Koller R, Krieger-Grübel C, Kullak-Ublick G, Künzler P, Landolt M, Lange R, Lehmann FS, Macpherson A, Maerten P, Maillard MH, Manser C, Manz M, Marbet U, Marx G, Matter C, Meier R, Mendanova M, Michetti P, Misselwitz B, Morell B, Mosler P, Mottet C, Müller C, Müller P, Müllhaupt B, Münger-Beyeler C, Musso L, Nagy A, Neagu M, Nichita C, Niess J, Nydegger A, Obialo N, Oneta C, Oropesa C, Peter U, Peternac D, Petit LM, Piccoli-Gfeller F, Pilz JB, Pittet V, Raschle N, Rentsch R, Restellini RS, Richterich JP, Rihs S, Ritz MA, Roduit J, Rogler D, Rogler G, Rossel JB, Rueger V, Saner G, Sauter B, Sawatzki M, Schäppi M, Scharl M, Scharl S, Schelling M, Schibli S, Schlauri H, Uebelhart SS, Schnegg JF, Schoepfer A, Seibold F, Seirafi M, Semadeni GM, Semela D, Senning A, Sidler M, Sokollik C, Spalinger J, Spangenberger H, Stadler P, Steuerwald M, Straumann A, Straumann-Funk B, Sulz M, Suter A, Thorens J, Tiedemann S, Tutuian R, Vavricka S, Viani F, Vögtlin J, Von Känel R, Vonlaufen A, Vouillamoz D, Vulliamy R, Wermuth J, Werner H, Wiesel P, Wiest R, Wylie T, Zeitz J, Zimmermann D. Cohort Profile Update: The Swiss Inflammatory Bowel Disease Cohort Study (SIBDCS). Int J Epidemiol 2019; 48:385-386f. [DOI: 10.1093/ije/dyy298] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/08/2019] [Indexed: 02/06/2023] Open
Affiliation(s)
- Valérie Pittet
- Institute of Social & Preventive Medicine (IUMSP), Lausanne University Hospital, Lausanne, Switzerland
| | - Pierre Michetti
- Crohn and Colitis Center, Gastroentérologie Beaulieu SA, Lausanne, Switzerland
- Division of Gastroenterology & Hepatology, Lausanne University Hospital, Lausanne, Switzerland
| | | | - Christian P Braegger
- Division of Gastroenterology and Nutrition, University Children's Hospital Zurich, Zurich, Switzerland
| | - Roland von Känel
- Department of Consultation-Liaison-Psychiatry and Psychosomatic Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Alain Schoepfer
- Division of Gastroenterology & Hepatology, Lausanne University Hospital, Lausanne, Switzerland
| | - Andrew J Macpherson
- University Clinic of Visceral Surgery and Medicine, Inselspital, Bern, Switzerland
- Maurice Muller Laboratories, Department for Biomedical Research, University of Bern, Bern, Switzerland
| | - Gerhard Rogler
- Division of Gastroenterology & Hepatology, Zurich University Hospital, Zurich, Switzerland
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Madanchi M, Fagagnini S, Fournier N, Biedermann L, Zeitz J, Battegay E, Zimmerli L, Vavricka SR, Rogler G, Scharl M, Bauerfeind P, Beglinger C, Begré S, Belli D, Bengoa JM, Biedermann L, Bigler B, Binek J, Blattmann M, Boehm S, Borovicka J, Braegger CP, Brunner N, Bühr P, Burnand B, Burri E, Buyse S, Cremer M, Criblez DH, Saussure PD, Degen L, Delarive J, Doerig C, Dora B, Dorta G, Egger M, Ehmann T, El-Wafa A, Engelmann M, Ezri J, Felley C, Fliegner M, Fournier N, Fraga M, Frei P, Frei R, Fried M, Froehlich F, Funk C, Furlano RI, Gallot-Lavallée S, Geyer M, Girardin M, Golay D, Grandinetti T, Gysi B, Haack H, Haarer J, Helbling B, Hengstler P, Herzog D, Hess C, Heyland K, Hinterleitner T, Hiroz P, Hirschi C, Hruz P, Iwata R, Jost R, Juillerat P, Brondolo VK, Knellwolf C, Knoblauch C, Köhler H, Koller R, Krieger-Grübel C, Kullak-Ublick G, Künzler P, Landolt M, Lange R, Lehmann FS, Macpherson A, Maerten P, Maillard MH, Manser C, Manz M, Marbet U, Marx G, Matter C, McLin V, Meier R, Mendanova M, Meyenberger C, Michetti P, Misselwitz B, Moradpour D, Morell B, Mosler P, Mottet C, Müller C, Müller P, Müllhaupt B, Münger-Beyeler C, Musso L, Nagy A, Neagu M, Nichita C, Niess J, Noël N, Nydegger A, Obialo N, Oneta C, Oropesa C, Peter U, Peternac D, Petit LM, Piccoli-Gfeller F, Pilz JB, Pittet V, Raschle N, Rentsch R, Restellini S, Richterich JP, Rihs S, Ritz MA, Roduit J, Rogler D, Rogler G, Rossel JB, Sagmeister M, Saner G, Sauter B, Sawatzki M, Schäppi M, Scharl M, Schelling M, Schibli S, Schlauri H, Uebelhart SS, Schnegg JF, Schoepfer A, Seibold F, Seirafi M, Semadeni GM, Semela D, Senning A, Sidler M, Sokollik C, Spalinger J, Spangenberger H, Stadler P, Steuerwald M, Straumann A, Straumann-Funk B, Sulz M, Thorens J, Tiedemann S, Tutuian R, Vavricka S, Viani F, Vögtlin J, Känel RV, Vonlaufen A, Vouillamoz D, Vulliamy R, Wermuth J, Werner H, Wiesel P, Wiest R, Wylie T, Zeitz J, Zimmermann D. The Relevance of Vitamin and Iron Deficiency in Patients with Inflammatory Bowel Diseases in Patients of the Swiss IBD Cohort. Inflamm Bowel Dis 2018; 24:1768-1779. [PMID: 29669023 DOI: 10.1093/ibd/izy054] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND ANDAIMS Vitamin and iron deficiencies are common in patients with inflammatory bowel disease (IBD) as a result of chronic intestinal inflammation, increase in demand, or dietary restrictions. Here, we assessed the frequency of complications in relation to deficiency of iron, folate acid, and vitamin B12 in patients enrolled in the nationwide Swiss Inflammatory Bowel Disease Cohort Study (SIBDCS). METHODS A total of 2666 patients were included in the study, 1558 with Crohn's disease (CD) and 1108 with ulcerative colitis (UC). RESULTS Iron deficiency anemia was detected in 19.6% of CD patients and 21.6% of UC patients. In CD patients low BMI and nonsmoker status were positively associated with anemia. In both CD and UC, malabsorption syndrome, defined as failure of the GI tract to absorb 1 or more substances from the diet, was found to be significantly associated with anemia (6.2% and 3.8%, respectively) and current steroid use (40% CD, 52.7% UC). In CD patients with ileal (31.7% vs 20%) and colonic (29.9% vs 25%) disease location folate deficiency was significantly higher than in patients with ileocolonic CD or upper GI involvement. In CD patients, vitamin B12 deficiency was associated with the onset of stenosis and intestinal surgery (42.9% vs 32.8% and 46% vs 33% for patients with versus without B12 deficiency). CONCLUSION Our data indicate that due to frequent occurrence of deficiency states, regular monitoring and substitution of vitamins and iron are mandatory and may prevent long-term intestinal and extraintestinal complications in IBD patients.
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Affiliation(s)
- Matiar Madanchi
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Stefania Fagagnini
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland.,Division of Internal Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Nicolas Fournier
- Institute of Social and Preventive Medicine (IUMSP), Lausanne University Hospital, Lausanne, Switzerland
| | - Luc Biedermann
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Jonas Zeitz
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Edouard Battegay
- Division of Internal Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Lukas Zimmerli
- Department of Internal Medicine, Kantonsspital Olten, Olten, Switzerland
| | - Stephan R Vavricka
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland.,Division of Gastroenterology and Hepatology, Stadtspital Triemli, Zurich, Switzerland
| | - Gerhard Rogler
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland.,Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| | - Michael Scharl
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland.,Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
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8
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Rosskopfova P, Perentes JY, Schäfer M, Krueger T, Lovis A, Dorta G, Baeriswyl M, Ris HB, Gonzalez M. Repair of challenging non-malignant tracheo- or broncho-oesophageal fistulas by extrathoracic muscle flaps. Eur J Cardiothorac Surg 2017; 51:844-851. [PMID: 28122791 DOI: 10.1093/ejcts/ezw435] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 12/17/2016] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVES Evaluation of complex, acquired, non-malignant tracheo/broncho-oesophageal fistulas (TEF) repaired by extrathoracic pedicled muscle flaps that were, in addition to their interposition between the airways and the gastro-intestinal tract, patched into gastro-intestinal or airway defects if primary closure seemed risky. METHODS A single institution experience of patients treated between 2003 and 2015. Twenty-two patients required TEF repair following oesophageal surgery (18), Boerhaave syndrome (1), chemotherapy for mediastinal lymphoma (1), carinal resection and irradiation (1) and laryngectomy (1); 64% of them underwent prior radio- or chemotherapy and 50% prior airway or oesophageal stenting. RESULTS Airway defects were closed by muscle flap patch ( n = 12), lobectomy ( n = 4), airway resection/anastomosis ( n = 2), pneumonectomy ( n = 1), segmentectomy ( n = 2) or primary suture ( n = 1). Gastro-intestinal defects were repaired by oesophageal diversion ( n = 9), muscle flap patch ( n = 8) or primary suture ( n = 5). A muscle flap patch was used to close airway and gastro-intestinal defects in 55% and 36% of cases, respectively. The 90-day postoperative mortality and TEF recurrence rates were 18% and 4.5%. Airway healing and breathing without tracheal appliance was obtained in 95% of patients and gastro-intestinal healing in 77% of those without oesophageal diversion. Five of nine patients with oesophageal diversion underwent intestinal restoration by retrosternal colon transplants. CONCLUSIONS Complex TEF arising after oesophageal surgery, radio-chemotherapy or failed stenting can be successfully closed using extrathoracic muscle flaps that can, in addition to their interposition between the airway and the gastro-intestinal tract, also be patched into gastro-oesophageal or airway defects if primary closure seems hazardous.
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Affiliation(s)
- Petra Rosskopfova
- Division of Thoracic Surgery, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Jean Yannis Perentes
- Division of Thoracic Surgery, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Markus Schäfer
- Division of Visceral Surgery, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Thorsten Krueger
- Division of Thoracic Surgery, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Alban Lovis
- Division of Pulmonology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Gian Dorta
- Division of Gastoenterology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Moira Baeriswyl
- Division of Anaesthesiology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Hans-Beat Ris
- Division of Thoracic Surgery, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Michel Gonzalez
- Division of Thoracic Surgery, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
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Abstract
Non-invasive ampullary tumors, may be treated with endoscopic (EA) or surgical ampullectomy (SA). However, evidence on the morbidity of these techniques remains limited. This pilot study aimed to assess and compare morbidity of EA and SA. Patients undergoing EA or SA for non-invasive ampullary tumors were retrospectively analyzed and compared. Outcomes were postoperative complications graded with Clavien Classification and Comprehensive Complication Index (CCI), and length of stay (LoS). A review of the literature was performed to propose an evidence-based algorithm to treat ampullary tumors. A total of 11 EA and 19 SA were identified and analyzed. EA was associated with shorter intervention (51 vs. 191 min, p < 0.001) and decreased blood loss (0 vs. 100 mL, p < 0.001). Postoperative complications were more frequent after surgery compared to endoscopy (9% vs. 68%, p = 0.002). Surgical patients showed a higher CCI (0 vs. 8.7, p < 0.001). LoS was reduced in patients undergoing endoscopy (0 vs. 14 days, p < 0.001), with comparable readmissions rates (p = 0.126). Necessity of subsequent treatment was more frequent after endoscopic, compared to SA (5 vs. 1, p = 0.016). EA was associated with lower morbidity than SA and appeared as an appropriate first-line treatment for non-invasive ampullary tumors. SA remains a valuable alternative after EA failure.
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Affiliation(s)
- Margaux Dubois
- Department of Visceral Surgery, Lausanne University Hospital (CHUV)
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10
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Allemann P, Mantziari S, Wagner D, Digklia A, Ozsahin E, De Bari B, Dorta G, Godat S, Montserrat F, Sempoux C, Brunel C, Demartines N, Schäfer M. [Curative treatment for esophageal cancer: results of a multidisciplinary consensus]. Rev Med Suisse 2016; 12:1165-1169. [PMID: 27487620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The management of patients with resectable cancer of the esophagus or gastroesophageal junction is currently not standardized. A multi- disciplinary regional consensus has been developed and is presented in this article. The standard workup includes an upper endoscopy, ultrasonography and a CT-scan. For locally advanced tumors, surgery should be associated with either preoperative radiochemotherapy orperioperative chemotherapy after discussion in multidisciplinary tumor board. Before the operation, smoking and alcohol cessation is imperative and nutritional status should be optimized. Nowadays, surgery is well standardized and generally performed minimally invasive accesses. After surgery, clinical and oncological follow-up is necessary.
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11
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Mikocka-Walus A, Pittet V, Rossel JB, von Känel R, Bauerfeind P, Beglinger C, Begré S, Belli D, Bengoa JM, Biedermann L, Bigler B, Binek J, Blattmann M, Boehm S, Borovicka J, Braegger CP, Brunner N, Bühr P, Burnand B, Burri E, Buyse S, Cremer M, Criblez DH, de Saussure P, Degen L, Delarive J, Doerig C, Dora B, Dorta G, Egger M, Ehmann T, El-Wafa A, Engelmann M, Ezri J, Felley C, Fliegner M, Fournier N, Fraga M, Frei P, Frei R, Fried M, Froehlich F, Funk C, Ivano Furlano R, Gallot-Lavallée S, Geyer M, Girardin M, Golay D, Grandinetti T, Gysi B, Haack H, Haarer J, Helbling B, Hengstler P, Herzog D, Hess C, Heyland K, Hinterleitner T, Hiroz P, Hirschi C, Hruz P, Iwata R, Jost R, Juillerat P, Kessler Brondolo V, Knellwolf C, Knoblauch C, Köhler H, Koller R, Krieger-Grübel C, Kullak-Ublick G, Künzler P, Landolt M, Lange R, Serge Lehmann F, Macpherson A, Maerten P, Maillard MH, Manser C, Manz M, Marbet U, Marx G, Matter C, McLin V, Meier R, Mendanova M, Meyenberger C, Michetti P, Misselwitz B, Moradpour D, Morell B, Mosler P, Mottet C, Müller C, Müller P, Müllhaupt B, Münger-Beyeler C, Musso L, Nagy A, Neagu M, Nichita C, Niess J, Noël N, Nydegger A, Obialo N, Oneta C, Oropesa C, Peter U, Peternac D, Marie Petit L, Piccoli-Gfeller F, Beatrice Pilz J, Pittet V, Raschle N, Rentsch R, Restellini S, Richterich JP, Rihs S, Alain Ritz M, Roduit J, Rogler D, Rogler G, Rossel JB, Sagmeister M, Saner G, Sauter B, Sawatzki M, Schäppi M, Scharl M, Schelling M, Schibli S, Schlauri H, Schmid Uebelhart S, Schnegg JF, Schoepfer A, Seibold F, Seirafi M, Semadeni GM, Semela D, Senning A, Sidler M, Sokollik C, Spalinger J, Spangenberger H, Stadler P, Steuerwald M, Straumann A, Straumann-Funk B, Sulz M, Thorens J, Tiedemann S, Tutuian R, Vavricka S, Viani F, Vögtlin J, Von Känel R, Vonlaufen A, Vouillamoz D, Vulliamy R, Wermuth J, Werner H, Wiesel P, Wiest R, Wylie T, Zeitz J, Zimmermann D. Symptoms of Depression and Anxiety Are Independently Associated With Clinical Recurrence of Inflammatory Bowel Disease. Clin Gastroenterol Hepatol 2016; 14:829-835.e1. [PMID: 26820402 DOI: 10.1016/j.cgh.2015.12.045] [Citation(s) in RCA: 226] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 12/14/2015] [Accepted: 12/23/2015] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS We examined the relationship between symptoms of depression and anxiety and clinical recurrence of inflammatory bowel disease (IBD) in a large patient cohort. We considered the progression of depression and anxiety over time. METHODS We collected clinical and treatment data on 2007 adult participants of the Swiss IBD study (56% with Crohn's disease [CD], 48% male) performed in Switzerland from 2006 through 2015. Depression and anxiety symptoms were quantified by using the Hospital Anxiety and Depression Scale. The relationship between depression and anxiety scores and clinical recurrence was analyzed by using survival-time techniques. RESULTS We found a significant association between symptoms of depression and clinical recurrence over time (for all patients with IBD, P = .000001; for subjects with CD, P = .0007; for subjects with ulcerative colitis, P = .005). There was also a significant relationship between symptoms of anxiety and clinical recurrence over time in all subjects with IBD (P = .0014) and in subjects with CD (P = .031) but not ulcerative colitis (P = .066). CONCLUSIONS In an analysis of a large cohort of subjects with IBD, we found a significant association between symptoms of depression or anxiety and clinical recurrence. Patients with IBD should therefore be screened for clinically relevant levels of depression and anxiety and referred to psychologists or psychiatrists for further evaluation and treatment.
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Affiliation(s)
- Antonina Mikocka-Walus
- Department of Health Sciences, University of York, York, United Kingdom; School of Psychology, University of Adelaide, Adelaide, Australia; Foundation Brocher, Geneva, Switzerland.
| | - Valerie Pittet
- Health Care Evaluation Unit, Institute of Social and Preventive Medicine, University of Lausanne, Lausanne, Switzerland
| | - Jean-Benoît Rossel
- Health Care Evaluation Unit, Institute of Social and Preventive Medicine, University of Lausanne, Lausanne, Switzerland
| | - Roland von Känel
- Department of Clinical Research, University of Bern, Bern, Switzerland; Department of Neurology, Inselspital, Bern University Hospital, Bern, Switzerland; Department of Psychosomatic Medicine, Clinic Barmelweid, Barmelweid, Switzerland
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Selby K, Cornuz J, Gachoud D, Bulliard JL, Nichita C, Dorta G, Ducros C, Auer R. Training primary care physicians to offer their patients faecal occult blood testing and colonoscopy for colorectal cancer screening on an equal basis: a pilot intervention with before-after and parallel group surveys. BMJ Open 2016; 6:e011086. [PMID: 27178977 PMCID: PMC4874168 DOI: 10.1136/bmjopen-2016-011086] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVES Primary care physicians (PCPs) should prescribe faecal immunochemical testing (FIT) or colonoscopy for colorectal cancer screening based on their patient's values and preferences. However, there are wide variations between PCPs in the screening method prescribed. The objective was to assess the impact of an educational intervention on PCPs' intent to offer FIT or colonoscopy on an equal basis. DESIGN Survey before and after training seminars, with a parallel comparison through a mailed survey to PCPs not attending the training seminars. SETTING All PCPs in the canton of Vaud, Switzerland. PARTICIPANTS Of 592 eligible PCPs, 133 (22%) attended a seminar and 106 (80%) filled both surveys. 109 (24%) PCPs who did not attend the seminars returned the mailed survey. INTERVENTION A 2 h-long interactive seminar targeting PCP knowledge, skills and attitudes regarding offering a choice of colorectal cancer (CRC) screening options. OUTCOME MEASURES The primary outcome was PCP intention of having their patients screened with FIT and colonoscopy in equal proportions (between 40% and 60% each). Secondary outcomes were the perceived role of PCPs in screening decisions (from paternalistic to informed decision-making) and correct answer to a clinical vignette. RESULTS Before the seminars, 8% of PCPs reported that they had equal proportions of their patients screened for CRC by FIT and colonoscopy; after the seminar, 33% foresaw having their patients screened in equal proportions (p<0.001). Among those not attending, there was no change (13% vs 14%, p=0.8). Of those attending, there was no change in their perceived role in screening decisions, while the proportion responding correctly to a clinical vignette increased (88-99%, p<0.001). CONCLUSIONS An interactive training seminar increased the proportion of physicians with the intention to prescribe FIT and colonoscopy in equal proportions.
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Affiliation(s)
- Kevin Selby
- Department of Ambulatory Care and Community Medicine, University of Lausanne, Lausanne, Switzerland
| | - Jacques Cornuz
- Department of Ambulatory Care and Community Medicine, University of Lausanne, Lausanne, Switzerland
| | - David Gachoud
- Department of Internal Medicine, University Hospital of Lausanne, Lausanne, Switzerland
- Education Unit, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
| | - Jean-Luc Bulliard
- Institute of Social and Preventive Medicine, University Hospital of Lausanne, Lausanne, Switzerland
| | - Cristina Nichita
- Department of Gastroenterology and Hepatology, University Hospital of Lausanne, Lausanne, Switzerland
| | - Gian Dorta
- Department of Gastroenterology and Hepatology, University Hospital of Lausanne, Lausanne, Switzerland
| | - Cyril Ducros
- Canton of Vaud Foundation for Cancer Screening, Lausanne, Switzerland
| | - Reto Auer
- Department of Ambulatory Care and Community Medicine, University of Lausanne, Lausanne, Switzerland
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland
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13
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Ciarloni L, Ehrensberger SH, Imaizumi N, Monnier-Benoit S, Nichita C, Myung SJ, Kim JS, Song SY, Kim TI, van der Weg B, Meier R, Borovicka J, Beglinger C, Vallet C, Maerten P, Rüegg C, Dorta G. Development and Clinical Validation of a Blood Test Based on 29-Gene Expression for Early Detection of Colorectal Cancer. Clin Cancer Res 2016; 22:4604-11. [PMID: 27126992 DOI: 10.1158/1078-0432.ccr-15-2057] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 04/09/2016] [Indexed: 11/16/2022]
Abstract
PURPOSE A blood test for early detection of colorectal cancer is a valuable tool for testing asymptomatic individuals and reducing colorectal cancer-related mortality. The objective of this study was to develop and validate a novel blood test able to differentiate patients with colorectal cancer and adenomatous polyps (AP) from individuals with a negative colonoscopy. EXPERIMENTAL DESIGN A case-control, multicenter clinical study was designed to collect blood samples from patients referred for colonoscopy or surgery. Predictive algorithms were developed on 75 controls, 61 large AP (LAP) ≥1 cm, and 45 colorectal cancer cases and independently validated on 74 controls, 42 LAP, and 52 colorectal cancer cases (23 stages I-II) as well as on 245 cases including other colorectal findings and diseases other than colorectal cancer. The test is based on a 29-gene panel expressed in peripheral blood mononuclear cells alone or in combination with established plasma tumor markers. RESULTS The 29-gene algorithm detected colorectal cancer and LAP with a sensitivity of 79.5% and 55.4%, respectively, with 90.0% specificity. Combination with the protein tumor markers carcinoembryonic antigen (CEA) and CYFRA21-2 resulted in a specificity increase (92.2%) with a sensitivity for colorectal cancer and LAP detection of 78.1% and 52.3%, respectively. CONCLUSIONS We report the validation of a novel blood test, Colox®, for the detection of colorectal cancer and LAP based on a 29-gene panel and the CEA and CYFRA21-1 plasma biomarkers. The performance and convenience of this routine blood test provide physicians a useful tool to test average-risk individuals unwilling to undergo upfront colonoscopy. Clin Cancer Res; 22(18); 4604-11. ©2016 AACR.
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Affiliation(s)
| | | | | | | | - Cristina Nichita
- Department of Gastroenterology and Hepatology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Seung-Jae Myung
- Asan Medical Centre, Department of Gastroenterology, University of Ulsan College of Medicine, Seoul, South Korea
| | - Joo Sung Kim
- Department of Internal Medicine, College of Medicine, Seoul National University, Seoul, South Korea
| | - Si Young Song
- Severance Hospital, Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - Tae Il Kim
- Severance Hospital, Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | | | - Rémy Meier
- Kantonsspital Liestal, Gastroenterology, Hepatology and Nutrition Department, University Hospital, Liestal, Switzerland
| | - Jan Borovicka
- Kantonsspital St. Gallen, Department of Gastroenterology and Hepatology, St. Gallen, Switzerland
| | | | - Cédric Vallet
- Ensemble Hospitalier de la Côte, Surgery Services, Morges, Switzerland
| | | | - Curzio Rüegg
- Novigenix SA, Epalinges, Switzerland. Department of Medicine, Faculty of Science, University of Fribourg, Fribourg, Switzerland.
| | - Gian Dorta
- Department of Gastroenterology and Hepatology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland.
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14
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Auer R, Selby K, Bulliard JL, Nichita C, Dorta G, Ducros C, Cornuz J. [Shared decision making in the colorectal cancer screening program in the canton of Vaud]. Rev Med Suisse 2015; 11:2209-2215. [PMID: 26742350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The colorectal cancer screening program of the canton of Vaud aims to facilitate screening for this cancer for the population aged 50 to 69 years old. The two screening modalities offered are fecal immunochemical testing (FIT) and colonoscopy. The decision to undergo screening and the screening modality is based on an individual medical encounter with a primary care physician. Both screening modalities are reimbursed through basic health coverage in Switzerland. The participation to the screening program allows the exemption of the deductible for the medical encounter and the chosen screening modality. A copay of 10% is maintained for all costs. Communication tools were developed on the basis of recommendations in the literature to facilitate shared decision-making in a medical encounter.
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15
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Fraga M, Nydegger A, Abdelrahman K, Burgmann K, Maillard MH, Dorta G. [Digestive foreign body management]. Rev Med Suisse 2015; 11:1592-1595. [PMID: 26502619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Foreign body (FB) ingestion is a frequent reason for gastroenterology consulting. Eighty percent of these ingestions are accidental and observed among paediatric subjects. However, intentional repetitive ingestions are also observed, especially amongst prisoners or psychiatric patients. Most FBs pass throughout the digestive tract without any complication and without any need for surgical or endoscopic intervention. Nevertheless, around 10-20% of cases require an endoscopy examination and 1% will lead to a surgical intervention. Management approaches should favor inter-disciplinarity, balance benefits and risks of FB removal based on its location, and integrate psychiatric comorbidities into the decision process.
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16
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Ciarloni L, Hosseinian S, Monnier-Benoit S, Imaizumi N, Dorta G, Ruegg C. Discovery of a 29-gene panel in peripheral blood mononuclear cells for the detection of colorectal cancer and adenomas using high throughput real-time PCR. PLoS One 2015; 10:e0123904. [PMID: 25876024 PMCID: PMC4395254 DOI: 10.1371/journal.pone.0123904] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Accepted: 02/27/2015] [Indexed: 12/15/2022] Open
Abstract
Colorectal cancer (CRC) is the second leading cause of cancer-related death in developed countries. Early detection of CRC leads to decreased CRC mortality. A blood-based CRC screening test is highly desirable due to limited invasiveness and high acceptance rate among patients compared to currently used fecal occult blood testing and colonoscopy. Here we describe the discovery and validation of a 29-gene panel in peripheral blood mononuclear cells (PBMC) for the detection of CRC and adenomatous polyps (AP). Blood samples were prospectively collected from a multicenter, case-control clinical study. First, we profiled 93 samples with 667 candidate and 3 reference genes by high throughput real-time PCR (OpenArray system). After analysis, 160 genes were retained and tested again on 51 additional samples. Low expressed and unstable genes were discarded resulting in a final dataset of 144 samples profiled with 140 genes. To define which genes, alone or in combinations had the highest potential to discriminate AP and/or CRC from controls, data were analyzed by a combination of univariate and multivariate methods. A list of 29 potentially discriminant genes was compiled and evaluated for its predictive accuracy by penalized logistic regression and bootstrap. This method discriminated AP >1cm and CRC from controls with a sensitivity of 59% and 75%, respectively, with 91% specificity. The behavior of the 29-gene panel was validated with a LightCycler 480 real-time PCR platform, commonly adopted by clinical laboratories. In this work we identified a 29-gene panel expressed in PBMC that can be used for developing a novel minimally-invasive test for accurate detection of AP and CRC using a standard real-time PCR platform.
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Affiliation(s)
- Laura Ciarloni
- Diagnoplex SA, Epalinges, Switzerland
- Novigenix SA, Epalinges, Switzerland
| | - Sahar Hosseinian
- Diagnoplex SA, Epalinges, Switzerland
- Novigenix SA, Epalinges, Switzerland
| | | | - Natsuko Imaizumi
- Diagnoplex SA, Epalinges, Switzerland
- National Center for Competence in Research (NCCR), Molecular Oncology, Swiss Institute for Experimental Cancer Research (ISREC)-Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Gian Dorta
- Department of Gastroenterology and Hepatology, Centre Hospitalier Universitaire Vaudois (CHUV) and University of Lausanne, Lausanne, Switzerland
| | - Curzio Ruegg
- Novigenix SA, Epalinges, Switzerland
- National Center for Competence in Research (NCCR), Molecular Oncology, Swiss Institute for Experimental Cancer Research (ISREC)-Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
- Department of Medicine, Faculty of Science, University of Fribourg, Fribourg, Switzerland
- * E-mail:
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Nichita C, Ciarloni L, Monnier-Benoit S, Hosseinian S, Dorta G, Rüegg C. A novel gene expression signature in peripheral blood mononuclear cells for early detection of colorectal cancer. Aliment Pharmacol Ther 2014; 39:507-17. [PMID: 24428642 DOI: 10.1111/apt.12618] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 12/06/2013] [Accepted: 12/22/2013] [Indexed: 02/06/2023]
Abstract
BACKGROUND Early detection and treatment of colorectal adenomatous polyps (AP) and colorectal cancer (CRC) is associated with decreased mortality for CRC. However, accurate, non-invasive and compliant tests to screen for AP and early stages of CRC are not yet available. A blood-based screening test is highly attractive due to limited invasiveness and high acceptance rate among patients. AIM To demonstrate whether gene expression signatures in the peripheral blood mononuclear cells (PBMC) were able to detect the presence of AP and early stages CRC. METHODS A total of 85 PBMC samples derived from colonoscopy-verified subjects without lesion (controls) (n = 41), with AP (n = 21) or with CRC (n = 23) were used as training sets. A 42-gene panel for CRC and AP discrimination, including genes identified by Digital Gene Expression-tag profiling of PBMC, and genes previously characterised and reported in the literature, was validated on the training set by qPCR. Logistic regression analysis followed by bootstrap validation determined CRC- and AP-specific classifiers, which discriminate patients with CRC and AP from controls. RESULTS The CRC and AP classifiers were able to detect CRC with a sensitivity of 78% and AP with a sensitivity of 46% respectively. Both classifiers had a specificity of 92% with very low false-positive detection when applied on subjects with inflammatory bowel disease (n = 23) or tumours other than CRC (n = 14). CONCLUSION This pilot study demonstrates the potential of developing a minimally invasive, accurate test to screen patients at average risk for colorectal cancer, based on gene expression analysis of peripheral blood mononuclear cells obtained from a simple blood sample.
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Affiliation(s)
- C Nichita
- Gastroenterology and Hepatology Department, Centre Hospitalier Universitaire Vaudois (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland
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18
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Fraga M, Doerig C, Dorta G, Nichita C. [Radiofrequency ablation for Barret's esophagus]. Rev Med Suisse 2013; 9:1572-1576. [PMID: 24066464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Barrett's esophagus consists of the replacement of normal squamous epithelium by a specialised columnar lined epithelium referred to as intestinal metaplasia in the esophagus. It represents a premalignant lesion. The prevalence of Barrett's esophagus is around 1.6%. Esophageal adenocarcinoma results from the development of dysplasia progressing from low to high grade dysplasia and finally adenocarcinoma. Radiofrequency ablation currently represents the treatment of choice in eradicating Barrett's esophagus with associated dysplasia. The technique is based on the application of a radiofrequency current that enables the destruction of the superficial modified epithelium. This new approach presents a good security profile and, compared to other ablative techniques, shows superior results regarding Barrett's eradication.
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Affiliation(s)
- M Fraga
- Service de gastroentérologie et d'hépatologie, CHUV et Université de Lausanne, 1011 Lausanne.
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Perreau M, Rozot V, Welles HC, Belluti-Enders F, Vigano S, Maillard M, Dorta G, Mazza-Stalder J, Bart PA, Roger T, Calandra T, Nicod L, Harari A. Lack of Mycobacterium tuberculosis-specific interleukin-17A-producing CD4+ T cells in active disease. Eur J Immunol 2013; 43:939-48. [PMID: 23436562 DOI: 10.1002/eji.201243090] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Revised: 12/12/2012] [Accepted: 01/28/2013] [Indexed: 12/22/2022]
Abstract
Protective immunity to Mycobacterium tuberculosis (Mtb) is commonly ascribed to a Th1 profile; however, the involvement of Th17 cells remains to be clarified. Here, we characterized Mtb-specific CD4(+) T cells in blood and bronchoalveolar lavages (BALs) from untreated subjects with either active tuberculosis disease (TB) or latent Mtb infection (LTBI), considered as prototypic models of uncontrolled or controlled infection, respectively. The production of IL-17A, IFN-γ, TNF-α, and IL-2 by Mtb-specific CD4(+) T cells was assessed both directly ex vivo and following in vitro antigen-specific T-cell expansion. Unlike for extracellular bacteria, Mtb-specific CD4(+) T-cell responses lacked immediate ex vivo IL-17A effector function in both LTBI and TB individuals. Furthermore, Mtb-specific Th17 cells were absent in BALs, while extracellular bacteria-specific Th17 cells were identified in gut biopsies of healthy individuals. Interestingly, only Mtb-specific CD4(+) T cells from 50% of LTBI but not from TB subjects acquired the ability to produce IL-17A following Mtb-specific T-cell expansion. Finally, IL-17A acquisition by Mtb-specific CD4(+) T cells correlated with the coexpression of CXCR3 and CCR6, currently associated to Th1 or Th17 profiles, respectively. Our data demonstrate that Mtb-specific Th17 cells are selectively undetectable in peripheral blood and BALs from TB patients.
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Affiliation(s)
- Matthieu Perreau
- Service of Immunology and Allergy, Department of Medicine, Lausanne University Hospital, Lausanne, Switzerland.
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Maillard MH, Hiroz P, Wagner D, Prior J, Boubaker A, Pralong F, Dorta G, Nichita C. [Gastrointestinal neuroendocrine tumors: pleomorphic and often ignored]. Rev Med Suisse 2012; 8:1658-1663. [PMID: 22988725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Although generally considered as rare, incidence of gastrointestinal neuroendocrine tumors (GI-NETs) is increasing. The general practitioner has thus to be familiar with the vast array of clinical presentations and the growing family of diagnostic tools that can be used. Symptoms can be related to their hormonal production, their local extent or a bleeding complication. The prognosis depends on the grade of tumor, its local extent at diagnosis and its localization. The diagnosis relies on radiologic, endoscopic and nuclear medicine strategies. In case of typical symptoms, a hormonal secretion should be sought. Treatment options are extensive and should be discussed in an interdisciplinary manner.
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Affiliation(s)
- M H Maillard
- Service de gastroentérologie et hépatologie, CHUV, Lausanne.
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21
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Felley C, Bouzourene H, VanMelle MBG, Hadengue A, Michetti P, Dorta G, Spahr L, Giostra E, Frossard JL. Age, smoking and overweight contribute to the development of intestinal metaplasia of the cardia. World J Gastroenterol 2012; 18:2076-83. [PMID: 22563195 PMCID: PMC3342606 DOI: 10.3748/wjg.v18.i17.2076] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2011] [Revised: 01/04/2012] [Accepted: 02/26/2012] [Indexed: 02/06/2023] Open
Abstract
AIM: To assess the role of Helicobacter pylori (H. pylori), gastroesophageal reflux disease (GERD), age, smoking and body weight on the development of intestinal metaplasia of the gastric cardia (IMC).
METHODS: Two hundred and seventeen patients scheduled for esophagogastroduodenoscopy were enrolled in this study. Endoscopic biopsies from the esophagus, gastroesophageal junction and stomach were evaluated for inflammation, the presence of H. pylori and intestinal metaplasia. The correlation of these factors with the presence of IMC was assessed using logistic regression.
RESULTS: IMC was observed in 42% of the patients. Patient age, smoking habit and body mass index (BMI) were found as potential contributors to IMC. The risk of developing IMC can be predicted in theory by combining these factors according to the following formula: Risk of IMC = a + s - 2B where a = 2,…6 decade of age, s = 0 for non-smokers or ex-smokers, 1 for < 10 cigarettes/d, 2 for > 10 cigarettes/d and B = 0 for BMI < 25 kg/m2 (BMI < 27 kg/m2 in females), 1 for BMI > 25 kg/m2 (BMI > 27 kg/m2 in females). Among potential factors associated with IMC, H. pylori had borderline significance (P = 0.07), while GERD showed no significance.
CONCLUSION: Age, smoking and BMI are potential factors associated with IMC, while H. pylori and GERD show no significant association. IMC can be predicted in theory by logistic regression analysis.
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Dehlavi A, Nichita C, Brondolo VK, Bertolini D, Dorta G. [Prevention of colorectal cancer]. Rev Med Suisse 2011; 7:1704-1709. [PMID: 21987879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Colorectal cancer (CRC) is a public health problem. It is one of the most common cancers and mortality rate is around 50%. This article reports on the various methods of primary prevention testing for the population at average risk of developing CRC. Given its slow evolution through pre-cancerous lesions, it is appropiate to identify patients at medium risk and monitore those at high risk. Current screening methods show very different efficiencies. The most efficient are invasive and limit public support. New non-invasive tests based on fecal and blood biomarkers are being developed and will probably help to improve CRC screening in the future in an attempt to lower mortality rate.
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Affiliation(s)
- Ali Dehlavi
- Service de gastroentérologie et hépatologie, CHUV, 1011 Lausanne.
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23
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Badel S, Dorta G, Carron PN. [Upper gastrointestinal bleeding: usefulness of prognostic scores]. Rev Med Suisse 2011; 7:1574-1578. [PMID: 21922722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Upper gastrointestinal bleeding is a potentially serious event, usually requiring urgent endoscopic treatment. Better stratification of the risk of complication or death could optimize management and improve patient outcomes, while ensuring adequate resource allocation. Several prognostic scores have been developed, in order to identify high risk patients, who require immediate treatment, and patients at low risk for whom endoscopy may be delayed. An ideal prognostic score should be accurate, simple, reproducible, and prospectively validated in different populations. Published scores meet these requirements only partially, and thus can only be used as part of an integrative diagnostic and therapeutic process.
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Affiliation(s)
- S Badel
- Service de médecine interne, Hôpital intercantonal de la Broye, Avenue de la Colline 3 1530 Payerne.
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24
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Ciarloni L, Hosseinian S, Monnier-Benoit S, Imaizumi N, Dorta G, Ruegg C. Abstract 3174: Colorectal cancer specific host response signatures achieved by next generation sequencing and multiplex RT-qPCR. Cancer Res 2011. [DOI: 10.1158/1538-7445.am2011-3174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: colorectal cancer (CRC) develops over a period of several years and is often preceded by adenoma formation. Detection rates for colorectal adenoma and early CRC, however, are unsatisfactory due to low compliance towards invasive screening procedures such as colonoscopy. There is a large unmet screening need calling for an accurate, non invasive and cost effective test to screen for early neoplastic and preneoplastic colorectal lesions. We developed a screening test aimed at detecting precancerous lesions and CRC at early stages, based on a multigene expression profiling on peripheral blood mononuclear cells (PBMC).
Methods: 92 colonoscopy screened subjects served as a training set. Colonoscopy revealed 21 patients had CRC, 30 adenomas larger than 1cm and 41 had no detectable lesions. 16 mL of blood was collected from each individual and PBMC were purified using Vacutainer® CPT tubes (Becton Dickinson). Total RNA was extracted and a whole genome expression analysis by digital gene expression TAG profiling (Illumina) was performed on a subset of these 92 subjects. Deep sequencing generated on average 1.5 million reads per sample and they matched to 20288 different transcripts. Different univariate and multivariate statistical methods were then applied in order to find genes differentially expressed between control, adenoma and CRC (pvalue <0.05). 45 candidate genes discovered with TAG profiling were then analytically validated using a multiplex RT qPCR methodology. All candidate genes were normalized with a stable normalization strategy in order to obtain comparable results across assays. An additional set of 57 candidate genes was also added based on literature review and validated using the multiplex RT qPCR methodology. Multiple statistical methods were applied on the normalized PCR data and 43 biomarkers, with significant p-value (<0.01) for most of the methods, were selected. Two distinct molecular signatures were derived from the normalized biomarker combinations based on penalized logistic.
Results: a validation set was defined using random resampling (bootstrapping method), leading to the separation of individuals without lesion from those with CRC (Se 70%, Sp 94%, AUC 0.89) and from those with adenoma larger than 1cm (Se 67%, Sp 87%, AUC 0.80). In addition, as a test set, the organ and disease specificity of these signatures was confirmed by means of patients with other cancer types and inflammatory bowel diseases.
Conclusion: Next generation sequencing is a powerful research tool to define specific signatures for precancerous and early cancerous lesions when coupled to multiplex RT qPCR and normalized with specific reference genes. A prospective, multi-centric, pivotal study is underway in order to validate these results in a larger cohort.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 102nd Annual Meeting of the American Association for Cancer Research; 2011 Apr 2-6; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2011;71(8 Suppl):Abstract nr 3174. doi:10.1158/1538-7445.AM2011-3174
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Schoepfer A, Pache I, Nichita C, Dorta G, Moradpour D. [Highlights in gastroenterology and hepatology 2010]. Rev Med Suisse 2011; 7:25-29. [PMID: 21309170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
This review highlights recent advances in gastroenterology and hepatology, including the treatment of Crohn's disease, of eosinophilic esophagitis, of chronic hepatitis C, and of hepatic encephalopathy as well as the role of high resolution manometry in the investigation of esophageal motility disorders. These new developments will be summarized and discussed critically, with a particular emphasis on their potential implications for current and future clinical practice.
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Affiliation(s)
- A Schoepfer
- Service de gastroentérologie et d'hépatologie, CHUV, 1011 Lausanne.
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26
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Leggieri N, Marques-Vidal P, Cerwenka H, Denys A, Dorta G, Moutardier V, Raoult D. Migrated foreign body liver abscess: illustrative case report, systematic review, and proposed diagnostic algorithm. Medicine (Baltimore) 2010; 89:85-95. [PMID: 20517180 DOI: 10.1097/md.0b013e3181d41c38] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Pyogenic liver abscess is a severe condition and a therapeutic challenge. Treatment failure may be due to an unrecognized ingested foreign body that migrated from the gastrointestinal tract. There has recently been a marked increase in the number of reported cases of this condition, but initial misdiagnosis as cryptogenic liver abscess still occurs in the majority of cases. We conducted the current study to characterize this entity and provide a diagnostic strategy applicable worldwide. To this end, data were collected from our case and from a systematic review that identified 59 well-described cases. Another systematic review identified series of cryptogenic-and Asian Klebsiella-liver abscess; these data were pooled and compared with the data from the cases of migrated foreign body liver abscess. The review points out the low diagnostic accuracy of history taking, modern imaging, and even surgical exploration. A fistula found through imaging procedures or endoscopy warrants surgical exploration. Findings suggestive of foreign body migration are symptoms of gastrointestinal perforation, computed tomography demonstration of a thickened gastrointestinal wall in continuity with the abscess, and adhesions seen during surgery. Treatment failure, left lobe location, unique location (that is, only 1 abscess location within the liver), and absence of underlying conditions also point to the diagnosis, as shown by comparison with the cryptogenic liver abscess series. This study demonstrates that migrated foreign body liver abscess is a specific entity, increasingly reported. It usually is not cured when unrecognized, and diagnosis is mainly delayed. This study provides what we consider the best available evidence for timely diagnosis with worldwide applicability. Increased awareness is required to treat this underestimated condition effectively, and further studies are needed.
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Affiliation(s)
- Nicola Leggieri
- From Service de Maladies Infectieuses et Laboratoire Central de Bactériologie (NL), Hôpitaux Universitaires de Genève, Geneva, Switzerland; Institut Universitaire de Médecine Sociale et Préventive (PMV), Service deRadiologie (AD), Service de Gastroentérologie et d'Hépatologie (GD), Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland; Department of Surgery (HC), Medical University of Graz, Graz, Austria; Service de Chirurgie Viscérale (VM), Hôpital Nord, Marseille, France; and Unité des Rickettsies (DR), Centre Nationale de Recherche Scientifique, Unité Mixte de Recherche, Marseille, France
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Nichita C, Maerten P, Viani F, Jornod P, Dorta G. [Acute gastrointestinal bleeding]. Rev Med Suisse 2010; 6:192-197. [PMID: 20214191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Gastrointestinal bleeding is among the major clinical challenges for the gastroenterologists and the initial approach is very complex. For a big part of bleeding lesions, it is important to perform an endoscopic hemostatis after the introduction of an intravenous treatment (that has to be started as soon as there is a clinical suspicion of an upper gastrointestinal bleeding). The significant progresses made during the last years have allowed firstly to see the entire small bowel mucosa (video capsule) and secondly new treatments have successfully replaced surgical interventions.
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Affiliation(s)
- C Nichita
- Service de gastro-entérologie et hépatologie, CHUV, Lausanne.
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28
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Moradpour D, Dorta G. [Hepatitis C at a crossroads]. Rev Med Suisse 2010; 6:163-4. [PMID: 20214186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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29
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Leung Ki EL, Roduit J, Delarive J, Guyot J, Michetti P, Dorta G. [Small intestine bacterial overgrowth]. Rev Med Suisse 2010; 6:186-191. [PMID: 20214190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Small intestine bacterial overgrowth (SIBO) is a condition characterised by nutrient malabsorption and excessive bacteria in the small intestine. It typically presents with diarrhea, flatulence and a syndrome of malabsorption (steatorrhea, macrocytic anemia). However, it may be asymptomatic in the eldery. A high index of suspicion is necessary in order to differentiate SIBO from other similar presenting disorders such as coeliac disease, lactose intolerance or the irritable bowel syndrome. A search for predisposing factor is thus necessary. These factors may be anatomical (stenosis, blind loop), or functional (intestinal hypomotility, achlorydria). The hydrogen breath test is the most frequently used diagnostic test although it lacks standardisation. The treatment of SIBO consists of eliminating predisposing factors and broad-spectrum antibiotic therapy.
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Affiliation(s)
- E L Leung Ki
- Service de Gastro-Entérologie et D'Hepatologie, CHUV.
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30
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Nichita C, Abdou AEW, Maerten P, Herranz M, Mouret N, Thalmann C, Michetti PF, Dorta G. A single dose of intravenous esomeprazole decreases gastric secretion in healthy volunteers. Aliment Pharmacol Ther 2009; 30:1022-9. [PMID: 19702644 DOI: 10.1111/j.1365-2036.2009.04128.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Data suggest that esomeprazole decreases gastric secretion. AIMS To assess the effect of a single i.v. esomeprazole dose on gastric secretion volume 3 h after drug administration, as a primary endpoint, and to evaluate, as secondary endpoints, the reduction 1 and 5 h after dosing; time when the gastric pH was <2.5 and esomeprazole's safety. METHODS In all, 23 healthy Helicobacter pylori-negative volunteers (10 men, 13 women, mean age 28.2 +/- 6) participated in this single-centre, randomized, double-blind, placebo-controlled, 2-way, single-dose cross-over study. In different sessions, volunteers received i.v. either esomeprazole 40 mg or placebo. An inserted double-lumen nasogastric tube perfused and aspirated gastric liquid. Mechanical fractioned aspiration measured secretion volume; aliquot spectrophotometry assessed gastric secretion volume lost to the duodenum. RESULTS Three hours post-i.v. esomeprazole, average gastric secretion decreased by 77.6% (vs. baseline) compared to placebo. Values 1 and 5 h after dosing were 73.5% and 74.5%. Five hours after esomeprazole, the gastric pH was <2.5 3.9% of the time and 73.3% after placebo (P < 0.002). Esomeprazole was well-tolerated. No serious adverse events occurred. CONCLUSIONS Intravenous esomeprazole decreases gastric secretions. The potential clinical impact in averting bronchoaspiration during anaesthesia induction and in intensive care patients should be investigated in further studies.
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Affiliation(s)
- C Nichita
- Department of Gastroenterology and Hepatology at the University Hospital in Lausanne, Switzerland.
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31
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Kotzampassakis N, Christodoulou M, Krueger T, Demartines N, Vuillemier H, Cheng C, Dorta G, Ris HB. Esophageal Leaks Repaired by a Muscle Onlay Approach in the Presence of Mediastinal Sepsis. Ann Thorac Surg 2009; 88:966-72. [DOI: 10.1016/j.athoracsur.2009.05.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2009] [Revised: 05/04/2009] [Accepted: 05/06/2009] [Indexed: 01/04/2023]
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Borovicka J, Schönegg R, Hell M, Kradolfer D, Bauerfeind P, Dorta G, Netzer P, Binek J, Meyenberger C, Fischer JE, Spieler P. Is there an advantage to be gained from adding digital image cytometry of brush cytology to a standard biopsy protocol in patients with Barrett's esophagus? Endoscopy 2009; 41:409-14. [PMID: 19418394 DOI: 10.1055/s-0029-1214641] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
BACKGROUND AND STUDY AIMS The current gold standard in Barrett's esophagus monitoring consists of four-quadrant biopsies every 1-2 cm in accordance with the Seattle protocol. Adding brush cytology processed by digital image cytometry (DICM) may further increase the detection of patients with Barrett's esophagus who are at risk of neoplasia. The aim of the present study was to assess the additional diagnostic value and accuracy of DICM when added to the standard histological analysis in a cross-sectional multicenter study of patients with Barrett's esophagus in Switzerland. METHODS One hundred sixty-four patients with Barrett's esophagus underwent 239 endoscopies with biopsy and brush cytology. DICM was carried out on 239 cytology specimens. Measures of the test accuracy of DICM (relative risk, sensitivity, specificity, likelihood ratios) were obtained by dichotomizing the histopathology results (high-grade dysplasia or adenocarcinoma vs. all others) and DICM results (aneuploidy/intermediate pattern vs. diploidy). RESULTS DICM revealed diploidy in 83% of 239 endoscopies, an intermediate pattern in 8.8%, and aneuploidy in 8.4%. An intermediate DICM result carried a relative risk (RR) of 12 and aneuploidy a RR of 27 for high-grade dysplasia/adenocarcinoma. Adding DICM to the standard biopsy protocol, a pathological cytometry result (aneuploid or intermediate) was found in 25 of 239 endoscopies (11%; 18 patients) with low-risk histology (no high-grade dysplasia or adenocarcinoma). During follow-up of 14 of these 18 patients, histological deterioration was seen in 3 (21%). CONCLUSION DICM from brush cytology may add important information to a standard biopsy protocol by identifying a subgroup of BE-patients with high-risk cellular abnormalities.
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Affiliation(s)
- J Borovicka
- Division of Gastroenterology, Department of Internal Medicine, Cantonal Hospital, St Gall, Switzerland.
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Jornod P, Vouillamoz D, Viani F, Nichita C, Dorta G. [Progress in 2008 for acid related diseases]. Rev Med Suisse 2009; 5:167-175. [PMID: 19271427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The treatment of reflux disease did not change in the review period. PPI therapy remains the first line treatment and surgery the second line approach. Endoscopic anti-reflux procedures should be only performed in controlled studies. Beside the classic triple therapy, sequential treatment of Helicobacter pylori infection can today be considered as a first line therapy. PPI are effective in the prevention of gastroduodenal lesions and in the treatment of dyspeptic symptoms induced by NSAIDs treatment. Only patients younger then 65 years and without any risk factors do not need a preventive PPI prescription during classic NSAIDS treatment.
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Affiliation(s)
- P Jornod
- Service de gastroentérologie et d'hépatologie, CHUV, 1011 Lausanne
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34
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Marbet UA, Bauerfeind P, Brunner J, Dorta G, Valloton JJ, Delcò F. Colonoscopy is the preferred colorectal cancer screening method in a population-based program. Endoscopy 2008; 40:650-5. [PMID: 18609465 DOI: 10.1055/s-2008-1077350] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND STUDY AIMS Various screening methods for colorectal cancer (CRC) are promoted by professional societies; however, few data are available about the factors that determine patient participation in screening, which is crucial to the success of population-based programs. This study aimed (i) to identify factors that determine acceptance of screening and preference of screening method, and (ii) to evaluate procedure success, detection of colorectal neoplasia, and patient satisfaction with screening colonoscopy. PATIENTS AND METHODS Following a public awareness campaign, the population aged 50 - 80 years was offered CRC screening in the form of annual fecal occult blood tests, flexible sigmoidoscopy, a combination of both, or colonoscopy. RESULTS 2731 asymptomatic persons (12.0 % of the target population) registered with and were eligible to take part in the screening program. Access to information and a positive attitude to screening were major determinants of participation. Colonoscopy was the method preferred by 74.8 % of participants. Advanced colorectal neoplasia was present in 8.5 %; its prevalence was higher in males and increased with age. Significant complications occurred in 0.5 % of those undergoing colonoscopy and were associated with polypectomy or sedation. Most patients were satisfied with colonoscopy and over 90 % would choose it again for CRC screening. CONCLUSIONS In this population-based study, only a small proportion of the target population underwent CRC screening despite an extensive information campaign. Colonoscopy was the preferred method and was safe. The determinants of participation in screening and preference of screening method, together with the distribution of colorectal neoplasia in different demographic categories, provide a rationale for improving screening procedures.
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Affiliation(s)
- U A Marbet
- Division of Gastroenterology, Department of Medicine, District Hospital of Uri, Switzerland
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35
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Felley C, Perneger TV, Goulet I, Rouillard C, Azar-Pey N, Dorta G, Hadengue A, Frossard JL. Combined written and oral information prior to gastrointestinal endoscopy compared with oral information alone: a randomized trial. BMC Gastroenterol 2008; 8:22. [PMID: 18522729 PMCID: PMC2430967 DOI: 10.1186/1471-230x-8-22] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2008] [Accepted: 06/03/2008] [Indexed: 11/24/2022] Open
Abstract
Background Little is known about how to most effectively deliver relevant information to patients scheduled for endoscopy. Methods To assess the effects of combined written and oral information, compared with oral information alone on the quality of information before endoscopy and the level of anxiety. We designed a prospective study in two Swiss teaching hospitals which enrolled consecutive patients scheduled for endoscopy over a three-month period. Patients were randomized either to receiving, along with the appointment notice, an explanatory leaflet about the upcoming examination, or to oral information delivered by each patient's doctor. Evaluation of quality of information was rated on scales between 0 (none received) and 5 (excellent). The analysis of outcome variables was performed on the basis of intention to treat-analysis. Multivariate analysis of predictors of information scores was performed by linear regression analysis. Results Of 718 eligible patients 577 (80%) returned their questionnaire. Patients who received written leaflets (N = 278) rated the quality of information they received higher than those informed verbally (N = 299), for all 8 quality-of-information items. Differences were significant regarding information about the risks of the procedure (3.24 versus 2.26, p < 0.001), how to prepare for the procedure (3.56 versus 3.23, p = 0.036), what to expect after the procedure (2.99 versus 2.59, p < 0.001), and the 8 quality-of-information items (3.35 versus 3.02, p = 0.002). The two groups reported similar levels of anxiety before procedure (p = 0.66), pain during procedure (p = 0.20), tolerability throughout the procedure (p = 0.76), problems after the procedure (p = 0.22), and overall rating of the procedure between poor and excellent (p = 0.82). Conclusion Written information led to more favourable assessments of the quality of information and had no impact on patient anxiety nor on the overall assessment of the endoscopy. Because structured and comprehensive written information is perceived as beneficial by patients, gastroenterologists should clearly explain to their patients the risks, benefits and alternatives of endoscopic procedures. Trial registration: Current Controlled trial number: ISRCTN34382782.
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Affiliation(s)
- Christian Felley
- Division of Gastroenterology and Hepatology, University Hospitals, and University of Geneva, Geneva, Switzerland.
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Abstract
pH monitoring has been used as a diagnostic tool in gastro-oesophageal reflux disease (GERD) for many years. Recent studies have shown that wireless capsule pH monitoring is better tolerated and interferes less with daily activities as compared to traditional catheter-based pH monitoring. Moreover, prolonged recording time (48 h instead of 24 h) is possible with wireless pH monitoring. The main secondary effect of wireless capsule pH monitoring is induction of thoracic discomfort in 10-65% of the patients, which can vary from mild foreign body sensation to severe chest pain. Sensitivity and specificity of wireless capsule monitoring is comparable to that of traditional pH monitoring. It has not been proven yet that better tolerability and a longer recording time increases the diagnostic yield of wireless capsule monitoring in GERD.
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Affiliation(s)
- Philippe Maerten
- Department of Gastroenterology and Hepatology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland.
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Antonino AT, Frei A, Ali-el-Wafa A, Kessler-Brondolo V, Dorta G. [Colorectal cancer screening: follow-up of patients with adenomatous and colorectal cancer]. Rev Med Suisse 2008; 4:224-229. [PMID: 18335888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The different methods of colorectal cancer screening are discussed. Our recommendations had not changed: we recommend as colorectal cancer screening a colonoscopy at the age of 50 years in all healthy persons with average risk for colorectal cancer. A 2007 interdisciplinary consensus conference revised the Swiss recommendations for the follow-up of patients with operated colorectal cancer or after polypectomy.
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Vouillamoz D, Jornod P, Viani F, Nichita C, Dorta G. [Acid related diseases progress in 2007]. Rev Med Suisse 2008; 4:190, 192, 194 passim. [PMID: 18335884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The treatment of reflux disease did not changed. PPI treatment remains the first line treatment and surgery a second line treatment. The effect of surgery in reflux disease reduces and, after ten years, a part of the operated patients needs PPI again. The triple therapy is the treatment of choice of Helicobacter pylori infection. Patients with persistent Helicobacter pylori infection, after a first treatment, should be treated with a sequential treatment. PPI are effective in the prevention of gastroduodenal lesions and in the treatment of dyspeptic symptoms during NSAID treatment. IPP should be given to all patients presenting dyspeptic symptoms under NSAID or COX-2 administration.
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Wang Y, Holmes E, Comelli EM, Fotopoulos G, Dorta G, Tang H, Rantalainen MJ, Lindon JC, Corthésy-Theulaz IE, Fay LB, Kochhar S, Nicholson JK. Topographical variation in metabolic signatures of human gastrointestinal biopsies revealed by high-resolution magic-angle spinning 1H NMR spectroscopy. J Proteome Res 2007; 6:3944-51. [PMID: 17711324 DOI: 10.1021/pr0702565] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Individual and topographical variation in the metabolic profiles of multiple human gastrointestinal tract (GIT) biopsies have been characterized using high-resolution magic-angle spinning (HRMAS) 1H NMR spectroscopy and pattern recognition. Samples from antrum, duodenum, jejunum, ileum, and transverse colon were obtained from 8 male and 8 female participants. Each gut region generated a highly characteristic metabolic profile consistent with the varying structural and functional properties of the tissue at different longitudinal levels of the gut. The antral (stomach) mucosa contained higher levels of choline, glycogen, phosphorylethanolamine, and taurine than other gut regions. The spatially close regions of the duodenum and jejunum were equivalent in terms of their gross biochemical composition with high levels of choline, glutathione, glycerophosphocholine (GPC), and lipids relative to other gut regions. The ileal mucosa showed poor discrimination from the duodenum and jejunum tissues and generated strong amino acids signatures but had relative low GPC signals. The colon (large intestine) was high in acetate, glutamate, inositols, and lactate and low in creatine, GPC, and taurine compared to the small intestine. These longitudinal metabolic variations in the human GIT could be attributed to functional variations in energy metabolism, osmoregulation, gut microbial activity, and oxidative protection. This work indicates that 1H HRMAS NMR studies may be of value in analyzing local metabolic variation due to pathological processes in gut biopsies.
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Affiliation(s)
- Yulan Wang
- Department of Biomolecular Medicine, SORA Division, Faculty of Medicine, Imperial College London, Sir Alexander Fleming Building, South Kensington, London SW7 2AZ, United Kingdom
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40
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Osterheld MC, Andrejevic Blant S, Caron L, Braunschweig R, Dorta G, Bouzourene H, Mihaescu A. Digital image DNA cytometry: a useful tool for the evaluation of malignancy in biliary strictures. Anal Cell Pathol (Amst) 2007; 27:255-60. [PMID: 16308475 PMCID: PMC4617497 DOI: 10.1155/2005/418029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background: Cytologic evaluation of the biliary tract strictures is nowadays widely used for distinguishing between benign and malignant lesions but remains a challenge for some problematic cases. Digital Image cytometry (DNA-cytometry) helps cytopathologists to resolve some unclear situations. Methods: We have analysed 41 specimens of bile duct brushings obtained from patients during ERCP (11 benign cases, 7 suspicious for malignancy cases and 23 malignant cases) by DNA-cytometry and correlated them with the histological biopsy counterpart. Results: All eleven cytological and histological benign cases were DNA-diploid and among 22 patients with malignant cytological and histological diagnosis 21 were DNA-aneuploid. One case considered malignant by the cytopathologist revealed DNA-aneuploid but malignancy could not be confirmed by histology. The analysis of the suspicious for malignancy cases revealed that all DNA-aneuploid cases were malignant and all DNA-diploid cases were benign referring to the follow-up of the patients. The comparison between cytology alone and cytology combined with DNA-cytometry related to the histological diagnosis (gold standard) resulted in a sensitivity of 100% and a specificity of 79% for cytology alone; a specificity of 94% and a sensitivity 92% for DNA-cytometry and a specificity of 93% and a sensitivity of 100% with combined analyses. The positive predictive value was 90% for cytology, 96% for DNA-cytometry and for both analyses. The negative predictive value showed 100% for cytology, 89% for DNA-cytometry and 100% for combined studies. Conclusions: Despite the limited number of patients involved in the study, the Results obtained indicate an increased of specificity and of positive predictive value using DNA-cytometry. These Results confirm the pertinence of these method for challenging cases, in conjunction with other available diagnostic tools.
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Affiliation(s)
- M C Osterheld
- Institut Universitaire de Pathologie, Bugnon 25, 1011 Lausanne, Switzerland.
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Viani F, Vouillamoz D, Jornod P, Kessler-Brondolo V, Nichita C, Dorta G. [Peptic diseases]. Rev Med Suisse 2007; 3:192-4, 196-200. [PMID: 17357688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
There are no real therapeutical acquisitions in the year 2006. The latest breakthroughs related to peptic disease treatment are the subject of this article. In particular various therapeutic procedures in reflux disease, including Barrett's oesophagus are developed here. Two important items were emphasized in the treatment of gastric and duodenal ulcers, in particular Helicobacter pylori eradication and the treatment of bleeding ulcer. Prophylaxis of gastrointestinal lesions due to AINS is also approached in detail.
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Affiliation(s)
- Francesco Viani
- Service de gastro-entérologie et d'hépatologie, BH-10, CHUV, 1011 Lausanne
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42
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Ortner MA, Dorta G. Technology insight: Photodynamic therapy for cholangiocarcinoma. ACTA ACUST UNITED AC 2006; 3:459-67. [PMID: 16883350 DOI: 10.1038/ncpgasthep0543] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2005] [Accepted: 05/10/2006] [Indexed: 12/19/2022]
Abstract
Cholangiocarcinoma is, in most cases, rapidly fatal. Curative resection can only be offered to approximately 10% of patients. Even after seemingly curative resection, recurrence frequently occurs. Adjuvant chemotherapy and/or radiotherapy do not reduce the recurrence rate after resection. In the palliative setting, endoscopic or percutaneous biliary drainage is performed to relieve jaundice; however, poor results have been obtained in patients with tumors involving the intrahepatic bile ducts. Biliary drainage alleviates jaundice, but there is no evidence that it prolongs life. Palliative chemotherapy and/or radiotherapy have not been proven to prolong life and relieve jaundice. Photodynamic therapy (PDT) is a relatively new local, minimally invasive procedure that can be used to treat cholangiocarcinoma. PDT uses the physical properties of light-absorbing molecules, so-called photosensitizers, which accumulate within proliferating cells. Activation of the photosensitizer by a non-thermal laser leads to selective photochemical destruction of tumors. In a randomized trial of patients with nonresectable cholangiocarcinoma, PDT prolonged survival time, improved cholestasis and quality of life considerably, and had a favorable side-effect profile. A second randomized trial confirmed the beneficial effect of PDT. For the time being, PDT is recommended for patients with nonresectable disease. The role of PDT before and after surgical resection needs to be assessed.
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Affiliation(s)
- Maria-Anna Ortner
- Department for Gastroenterology and Hepatology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland.
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Borovicka J, Fischer J, Neuweiler J, Netzer P, Gschossmann J, Ehmann T, Bauerfeind P, Dorta G, Zürcher U, Binek J, Meyenberger C. Autofluorescence endoscopy in surveillance of Barrett's esophagus: a multicenter randomized trial on diagnostic efficacy. Endoscopy 2006; 38:867-72. [PMID: 16981102 DOI: 10.1055/s-2006-944726] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
BACKGROUND AND STUDY AIMS The reference surveillance method in patients with Barrett's esophagus is careful endoscopic observation, with targeted as well as random four-quadrant biopsies. Autofluorescence endoscopy (AFE) may make it easier to locate neoplasia. The aim of this study was to elucidate the diagnostic accuracy of surveillance with AFE-guided plus four-quadrant biopsies in comparison with the conventional approach. PATIENTS AND METHODS A total of 187 of 200 consecutive Barrett's esophagus patients who were initially enrolled (73 % male, mean age 67 years, mean Barrett's segment length 4.6 cm), who underwent endoscopy for Barrett's esophagus in four study centers, were randomly assigned to undergo either AFE-targeted biopsy followed by four-quadrant biopsies or conventional endoscopic surveillance, also including four-quadrant biopsies (study phase 1). After exclusion of patients with early cancer or high-grade dysplasia, who underwent endoscopic or surgical treatment, as well as those who declined to participate in phase 2 of the study, 130 patients remained. These patients were examined again with the alternative method after a mean of 10 weeks, using the same methods described. The main study parameter was the detection of early cancer/adenocarcinoma or high-grade dysplasia (HGD), comparing both approaches in study phase 1; the secondary study aim in phase 2 was to assess the additional value of the AFE-guided approach after conventional surveillance, and vice versa. Test accuracy measures were derived from study phase 1. RESULTS In study phase 1, the AFE and conventional approaches yielded adenocarcinoma/HGD rates of 12 % and 5.3 %, respectively, on a per-patient basis. With AFE, four previously unrecognized adenocarcinoma/HGD lesions were identified (4.3 % of the patients); with the conventional approach, one new lesion (1.1 %) was identified. Of the 19 adenocarcinoma/HGD lesions detected during AFE endoscopy in study phase 1, eight were visualized, while 11 were only detected using untargeted four-quadrant biopsies (sensitivity 42 %). Of the 766 biopsies classified at histology as being nonneoplastic, 58 appeared suspicious (specificity 92 %, positive predictive value 12 %, negative predictive value 98.5 %). In study phase 2, AFE detected two further lesions in addition to the initial alternative approach in 3.2 % of cases, in comparison with one lesion with conventional endoscopy (1.7 %). CONCLUSIONS In this referral Barrett's esophagus population with a higher prevalence of neoplastic lesions, the AFE-guided approach improved the diagnostic yield for neoplasia in comparison with the conventional approach using four-quadrant biopsies. However, AFE alone was not suitable for replacing the standard four-quadrant biopsy protocol.
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Affiliation(s)
- J Borovicka
- Division of Gastroenterology/Hepatology, Dept. of Internal Medicine, Cantonal Hospital, St. Gallen, Switzerland.
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Abstract
Gastrointestinal bleeding is still one of the most frequent medical emergencies. Despite improvements in endoscopic diagnosis and therapy, mortality from bleeding is still high (15%). Since conclusive trials are lacking, the endoscopist often has to rely on personal experience in the selection of therapeutic options. Therefore this article gives an overview of new publications in this field and recommendations based on personal experience.
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Affiliation(s)
- M-A Ortner
- Department Gastroenterology and Hepatology, Centre Hospitalier Universitaire Vaudois, Lausanne, Schweiz.
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Natterer J, Joseph JM, Denys A, Dorta G, Hohlfeld J, de Buys Roessingh AS. Life-threatening rectal bleeding with Klippel-Trenaunay syndrome controlled by angiographic embolization and rectal clips. J Pediatr Gastroenterol Nutr 2006; 42:581-4. [PMID: 16707985 DOI: 10.1097/01.mpg.0000210139.14753.b7] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Julia Natterer
- Department of Pediatric Surgery, University Hospital Center of the Canton of Vaud, Lausanne, Switzerland
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Nichita C, Viani F, Vouillamoz F, Jornod P, Kessler-Brondolo V, Dorta G. [Stomach diseases]. Rev Med Suisse 2006; 2:182-6, 188-90. [PMID: 16493961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
A new generation of PPI are presently in clinical trials. They are characterized by a quicker and longer effectiveness, very useful for reflux disease treatment. We have to note that the enthusiasm towards the endoscopy treatment for reflux disease is clearly deceasing and two types of procedures have even been recalled from the market. In Helicobacter pylori eradication treatments the tendency tends towards high doses of antibiotics for the second option treatments. The indication for a COX-2 treatment is largely reduced due to the cardiac side effects of certain COX-2. For the patients with high risk of gastro-duodenal toxicity through AINS, the alternative remains the classical non-specific AINS treatment associated with a PPI.
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Affiliation(s)
- C Nichita
- Service de Gastro-entérologie et d'Hépatologie, CHUV, 1011 Lausanne
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Abstract
BACKGROUND Gastroesophageal reflux and progressive esophageal dilatation can develop after gastric banding (GB). HYPOTHESIS Gastric banding may interfere with esophageal motility, enhance reflux, or promote esophageal dilatation. DESIGN Before-after trial in patients undergoing GB. SETTING University teaching hospital. PATIENTS AND METHODS Between January 1999 and August 2002, 43 patients undergoing laparoscopic GB for morbid obesity underwent upper gastrointestinal endoscopy, 24-hour pH monitoring, and stationary esophageal manometry before GB and between 6 and 18 months postoperatively. MAIN OUTCOME MEASURES Reflux symptoms, endoscopic esophagitis, pressures measured at manometry, esophageal acid exposure. RESULTS There was no difference in the prevalence of reflux symptoms or esophagitis before and after GB. The lower esophageal sphincter was unaffected by surgery, but contractions in the lower esophagus weakened after GB, in correlation with preoperative values. There was a trend toward more postoperative nonspecific motility disorders. Esophageal acid exposure tended to decrease after GB, with fewer reflux episodes. A few patients developed massive postoperative reflux. There was no clear correlation between preoperative testing and postoperative esophageal acid exposure, although patients with abnormal preoperative acid exposure tended to maintain high values after GB. CONCLUSIONS Postoperative esophageal dysmotility and gastroesophageal reflux are not uncommon after GB. Preoperative testing should be done routinely. Low amplitude of contraction in the lower esophagus and increased esophageal acid exposure should be regarded as contraindications to GB. Patients with such findings should be offered an alternative procedure, such as Roux-en-Y gastric bypass.
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Affiliation(s)
- Michel Suter
- Department of Surgery, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland.
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48
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D'Ambrogio A, Dorta G, Givel JC. [Colorectal stent: therapeutic alternative for acute obstruction?]. Rev Med Suisse 2005; 1:1605-7. [PMID: 16028705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
A colorectal obstruction generally requires an urgent approach, both diagnostically and therapeutically. This context and a poor general condition make surgery hazardous. An auto-expansive stent is an effective therapeutic alternative, more often used to remove such a benign or malignant colorectal obstruction. In the latter presentation, the stent allows for the removal of the obstacle and for the establishment of a precise diagnosis before surgery. In the case of an incurable tumour or where removal is contra-indicated, a stent can represent a palliative treatment. Success in terms of re-establishment of perfusion, is about 85%. The most frequently encountered complication is perforation and is an indication for urgent surgery. Migration and obstruction of the stent are less frequent.
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Schacher GM, Lesbros-Pantoflickova D, Ortner MA, Wasserfallen JB, Blum AL, Dorta G. Is early endoscopy in the emergency room beneficial in patients with bleeding peptic ulcer? A "fortuitously controlled" study. Endoscopy 2005; 37:324-8. [PMID: 15824941 DOI: 10.1055/s-2004-826237] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND STUDY AIMS In previous randomized trials, early endoscopy improved the outcome in patients with bleeding peptic ulcer, though most of these studies defined "early" as endoscopy performed within 24 hours after admission. Using the length of hospital stay as the primary criterion for the clinical outcome, we compared the results of endoscopy done immediately after admission (early endoscopy in the emergency room, EEE) with endoscopy postponed to a time within the first 24 hours after hospitalization, but still during normal working hours ("delayed" endoscopy in the endoscopy unit, DEU). PATIENTS AND METHODS We conducted a retrospective analysis of data from 81 consecutive patients with bleeding peptic ulcer admitted in 1997 and 1998 (age range 16 - 90 years). Of these 81 patients, 38 underwent DEU (the standard therapy at the hospital) and 43 underwent EEE. Patients in the two groups were comparable with regard to admission criteria, were equally distributed with respect to their risk of adverse outcome (assessed using the Baylor bleeding score and the Rockall score), and differed only in the treatment they received. Endoscopic hemostasis was performed whenever possible in all patients with Forrest types I, IIa, and IIb ulcer bleeding. RESULTS We found similar rates in the two groups for recurrent bleeding (16 % in DEU patients vs. 14 % in EEE patients), persistent bleeding (8 % in DEU patients vs. none in EEE patients), medical complications (21 % in DEU patients vs. 26 % in EEE patients), the need for surgery (8 % in DEU patients vs. 9 % in EEE patients), and the length of hospital stay (5.1 days for DEU patients vs. 5.9 days for EEE patients). None of the differences between the two groups in these parameters were statistically significant. None of the patients died. CONCLUSIONS Early endoscopy in an emergency room did not improve the clinical outcome in our 81 consecutive patients with bleeding peptic ulcer.
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Affiliation(s)
- G M Schacher
- Service de Gastroentérologie, Centre Hospitalier et Universitaire Vaudois, Lausanne, Switzerland
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