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Christian Ohmann

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Christian Ohmann; Steve Canham; Catherine Cornu; Jochen Dreß; François Gueyffier; Wolfgang Kuchinke; Enrico B Nicolis; Michael Wittenberg
Revising the ECRIN standard requirements for information technology and data management in clinical trials.
Florian Seemüller; Wolfgang Gaebel; Markus Gastpar; Isabella Heuser; Markus Jäger; Stefan Klingenberg; Joachim Klosterkötter; Ute Lewitzka; Wolfgang Maier; Andreas Mayr; Hans-Jürgen Möller; Richard Musil; Christian Ohmann; Michael Riedel; Rebecca Schennach; Ralf Schlösser; Andrea Schmitt; Frank Schneider
Akathisia and suicidal ideation in first-episode schizophrenia.
Wolfgang Wölwer; Wilhelm Burtscheidt; Peter Falkai; Petra E Franke; Nicole Frommann; Michaela Jänner; Thomas Kuhlmann; Bodo Lieb; Wolfgang Maier; Christian Ohmann; Michael Radermacher; Norbert Scherbaum; Christian Schütz; Thomas Wobrock; Wolfgang Gaebel
The effects of combined acamprosate and integrative behaviour therapy in the outpatient treatment of alcohol dependence: a randomized controlled trial.

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All Publications

2013: Christian Ohmann; Steve Canham; Catherine Cornu; Jochen Dreß; François Gueyffier; Wolfgang Kuchinke; Enrico B Nicolis; Michael Wittenberg
Revising the ECRIN standard requirements for information technology and data management in clinical trials.
Trials 2013;14():97.
2012: Florian Seemüller; Wolfgang Gaebel; Markus Gastpar; Isabella Heuser; Markus Jäger; Stefan Klingenberg; Joachim Klosterkötter; Ute Lewitzka; Wolfgang Maier; Andreas Mayr; Hans-Jürgen Möller; Richard Musil; Christian Ohmann; Michael Riedel; Rebecca Schennach; Ralf Schlösser; Andrea Schmitt; Frank Schneider
Akathisia and suicidal ideation in first-episode schizophrenia.
Journal of clinical psychopharmacology 2012;32(5):694-8.
2011: Wolfgang Wölwer; Wilhelm Burtscheidt; Peter Falkai; Petra E Franke; Nicole Frommann; Michaela Jänner; Thomas Kuhlmann; Bodo Lieb; Wolfgang Maier; Christian Ohmann; Michael Radermacher; Norbert Scherbaum; Christian Schütz; Thomas Wobrock; Wolfgang Gaebel
The effects of combined acamprosate and integrative behaviour therapy in the outpatient treatment of alcohol dependence: a randomized controlled trial.
Drug and alcohol dependence 2011;118(2-3):417-22.
2011: Wolfgang Gaebel; Mathias Riesbeck; Wolfgang Wölwer; Ansgar Klimke; Matthias Eickhoff; Martina Von Wilmsdorff; Matthias Lemke; Isabella Heuser; Wolfgang Maier; Wolfgang Huff; Andrea Schmitt; Heinrich Sauer; Michael Riedel; Stefan Klingberg; Wolfgang Köpcke; Christian Ohmann; Hans-Jürgen Möller
Relapse prevention in first-episode schizophrenia--maintenance vs intermittent drug treatment with prodrome-based early intervention: results of a randomized controlled trial within the German Research Network on Schizophrenia.
The Journal of clinical psychiatry 2011;72(2):205-18.
2011: Christian Ohmann; Wolfgang Kuchinke; Steve Canham; Jens Lauritsen; Nader Salas; Carmen Schade-Brittinger; Michael Wittenberg; Gladys McPherson; John McCourt; Francois Gueyffier; Andrea Lorimer; Ferran Torres
Standard requirements for GCP-compliant data management in multinational clinical trials.
Trials 2011;12():85.
2010: Annegret Kuhn; Merle Haust; Vincent Ruland; Ramona Weber; Pablo Verde; Gerd Felder; Christian Ohmann; Kristina Gensch; Thomas Ruzicka
Effect of bosentan on skin fibrosis in patients with systemic sclerosis: a prospective, open-label, non-comparative trial.
Rheumatology (Oxford, England) 2010;49(7):1336-45.
2010: Christian Ohmann; Pablo Emilio Verde; Karl Blum; Burkhard Fischer; Werner de Cruppé; Max Geraedts
Two short-term outcomes after instituting a national regulation regarding minimum procedural volumes for total knee replacement.
The Journal of bone and joint surgery. American volume 2010;92(3):629-38.
2010: Nadja Chernyak; Bernd Kulzer; Norbert Hermanns; Andreas Schmitt; Annika Gahr; Thomas Haak; Johannes Kruse; Christian Ohmann; Marsel Scheer; Guido Giani; Andrea Icks
Within-trial economic evaluation of diabetes-specific cognitive behaviour therapy in patients with type 2 diabetes and subthreshold depression.
BMC public health 2010;10():625.
2010: Wolfgang Kuchinke; Christian Ohmann; Qin Yang; Nader Salas; Jens Lauritsen; Francois Gueyffier; Alan Leizorovicz; Carmen Schade-Brittinger; Michael Wittenberg; Zoltán Voko; Siobhan Gaynor; Margaret Cooney; Peter Doran; Aldo Maggioni; Andrea Lorimer; Ferran Torres; Gladys McPherson; Jim Charwill; Mats Hellström; Stéphane Lejeune
Heterogeneity prevails: the state of clinical trial data management in Europe - results of a survey of ECRIN centres.
Trials 2010;11():79.
2010: Christian Ohmann
[Assessment and importance of clinical trial endpoints in various areas of medicine].
Zeitschrift für Evidenz, Fortbildung und Qualität im Gesundheitswesen 2010;104(3):250-7; discussion 258.
2009: Joachim Cordes; Peter Falkai; B Guse; A Hasan; T Schneider-Axmann; M Arends; Georg Winterer; Wolfgang Wölwer; E Ben Sliman; M Ramacher; C Schmidt-Kraepelin; Christian Ohmann; B Langguth; Michael Landgrebe; P Eichhammer; E Frank; J Burger; G Hajak; M Rietschel; T Wobrock
Repetitive transcranial magnetic stimulation for the treatment of negative symptoms in residual schizophrenia: rationale and design of a sham-controlled, randomized multicenter study.
European archives of psychiatry and clinical neuroscience 2009;259 Suppl 2():S189-97.
2009: Anja Lachenmayer; Qin Yang; Claus F Eisenberger; Edwin Boelke; Christopher Poremba; Antje Heinecke; Christian Ohmann; Wolfram T Knoefel; Matthias Peiper
Superficial soft tissue sarcomas of the extremities and trunk.
World journal of surgery 2009;33(8):1641-9.
2009: Andreas Krieg; Ansgar Röhrborn; Jochen Schulte am Esch; Dirk Schubert; Ludger W Poll; Christian Ohmann; S Braunstein; Wolfram T Knoefel
Necrotizing fasciitis: microbiological characteristics and predictors of postoperative outcome.
European journal of medical research 2009;14(1):30-6.
2009: Wolfgang Kuchinke; J Aerts; S C Semler; Christian Ohmann
CDISC standard-based electronic archiving of clinical trials.
Methods of information in medicine 2009;48(5):408-13.
2009: Christian Ohmann; W Kuchinke
Future developments of medical informatics from the viewpoint of networked clinical research. Interoperability and integration.
Methods of information in medicine 2009;48(1):45-54.
2008: Max Geraedts; Werner de Cruppé; Karl Blum; Christian Ohmann
Implementation and effects of Germany's minimum volume regulations: results of the accompanying research.
Deutsches Ärzteblatt international 2008;105(51-52):890-6.
2008: Hans-Jürgen Möller; Michael Riedel; Markus Jäger; Florian Wickelmaier; Wolfgang Maier; Kai-Uwe Kühn; Gerhard Buchkremer; Isabella Heuser; Joachim Klosterkötter; Markus Gastpar; Dieter F Braus; Ralf Schlösser; Frank Schneider; Christian Ohmann; Mathias Riesbeck; Wolfgang Gaebel
Short-term treatment with risperidone or haloperidol in first-episode schizophrenia: 8-week results of a randomized controlled trial within the German Research Network on Schizophrenia.
The international journal of neuropsychopharmacology / official scientific journal of the Collegium Internationale Neuropsychopharmacologicum (CINP) 2008;11(7):985-97.
2008: Michael Imhof; Stefan Epstein; Christian Ohmann; Hans-Dietrich Röher
Duration of survival after peptic ulcer perforation.
World journal of surgery 2008;32(3):408-12.
2008: Max Geraedts; C Kühnen; W de Cruppé; K Blum; Christian Ohmann
[Hospitals failing minimum volumes in 2004: reasons and consequences].
Gesundheitswesen (Bundesverband der Ärzte des Öffentlichen Gesundheitsdienstes (Germany)) 2008;70(2):63-7.
2008: Werner A Scherbaum; Christian Ohmann; Heinz-Harald Abholz; Nico Dragano; Mark Lankisch
Effect of the frequency of self-monitoring blood glucose in patients with type 2 diabetes treated with oral antidiabetic drugs-a multi-centre, randomized controlled trial.
PloS one 2008;3(8):e3087.
2008: Werner de Cruppé; Christian Ohmann; K Blum; Max Geraedts
[Influence of minimum volumes on the structure of inpatient care].
Gesundheitswesen (Bundesverband der Ärzte des Öffentlichen Gesundheitsdienstes (Germany)) 2008;70(1):9-17.
2007: Wolfgang Gaebel; Mathias Riesbeck; Wolfgang Wölwer; Ansgar Klimke; Matthias Eickhoff; Martina Von Wilmsdorff; Maria C Jockers-Scherübl; Kai-Uwe Kühn; Matthias Lemke; Andreas Bechdolf; Stefan Bender; Detlef Degner; Ralf Schlösser; Lutz G Schmidt; Andrea Schmitt; Markus Jäger; Gerhard Buchkremer; Peter Falkai; Stefan Klingberg; Wolfgang Köpcke; Wolfgang Maier; Heinz Häfner; Christian Ohmann; Hans Joachim Salize; Frank Schneider; Hans-Jürgen Möller
Maintenance treatment with risperidone or low-dose haloperidol in first-episode schizophrenia: 1-year results of a randomized controlled trial within the German Research Network on Schizophrenia.
The Journal of clinical psychiatry 2007;68(11):1763-74.
2007: Roland Meisel; Lisa Kuypers; Uta Dirksen; Ralf Schubert; Bernd Gruhn; Gabriele Strauss; Karin Beutel; Andreas H Groll; Ulrich Duffner; Renate Blütters-Sawatzki; Wolfgang Holter; Tobias Feuchtinger; Hans-Peter Grüttner; Horst Schroten; Stefan Zielen; Christian Ohmann; Hans-Jürgen Laws; Dagmar Dilloo
Pneumococcal conjugate vaccine provides early protective antibody responses in children after related and unrelated allogeneic hematopoietic stem cell transplantation.
Blood 2007;109(6):2322-6.
2007: Werner de Cruppé; Christian Ohmann; Karl Blum; Max Geraedts
Evaluating compulsory minimum volume standards in Germany: how many hospitals were compliant in 2004?
BMC health services research 2007;7():165.
2006: Gerhard Stoehr; Klaus Luebbers; Michael Wilhelm; Juergen Hoelzer; Christian Ohmann
Aluminum load in ICU patients during stress ulcer prophylaxis.
European journal of internal medicine 2006;17(8):561-6.
2006: Cornelia M E Dotzenrath; Ana Karena Kaetsch; Henrich Pfingsten; Kenko Cupisti; Norbert Weyerbrock; Alexander Vossough; Pablo E Verde; Christian Ohmann
Neuropsychiatric and cognitive changes after surgery for primary hyperparathyroidism.
World journal of surgery 2006;30(5):680-5.
2006: W Kuchinke; S Wiegelmann; P Verplancke; Christian Ohmann
Extended cooperation in clinical studies through exchange of CDISC metadata between different study software solutions.
Methods of information in medicine 2006;45(4):441-6.
2005: Gabriela Möslein; Christian Ohmann; M Wenzel
[Prophylactic surgery for hereditary non-polyposis colorectal cancer].
Der Chirurg; Zeitschrift für alle Gebiete der operativen Medizen 2005;76(12):1135-44.
2005: Cornelia M E Dotzenrath; Kenko Cupisti; Andreas Raffel; Birgit Aust; Quh Yang; Björn Krüger; Christian Ohmann; Hans-Dietrich Röher; Peter E Goretzki
Do Germans keep patients too long in hospital? A prospective randomized trial.
World journal of surgery 2005;29(9):1189-93.
2005: Christian Ohmann; Michael Imhof; Christian Ruppert; Ulf Janzik; Christoph Vogt; Thomas Frieling; Klaus Becker; Frank Neumann; Stephan Faust; Klaus Heiler; Klaus Haas; Rainer Jurisch; Ernst-Günter Wenzel; Stefan Normann; Oliver Bachmann; Jorge Delgadillo; Florian Seidel; Claus Franke; Reinhard Lüthen; Qin Yang; Christian Reinhold
Time-trends in the epidemiology of peptic ulcer bleeding.
Scandinavian journal of gastroenterology 2005;40(8):914-20.
2005: Jacques Demotes-Mainard; Christian Ohmann
European Clinical Research Infrastructures Network: promoting harmonisation and quality in European clinical research.
Lancet 2005;365(9454):107-8.
2005: Christian Ohmann; Rüdiger Smektala; Ludger Pientka; Stefan Paech; Elke Neuhaus; Martin Rieger; Wolfgang Schwabe; Peter Debold; Michael Jonas; Klaus Hupe; Hans-Joachim Bücker-Nott; Giani Guido; Thomas D Szucs
[A new model of comprehensive data linkage--evaluation of its application in femoral neck fracture].
Zeitschrift für ärztliche Fortbildung und Qualitätssicherung 2005;99(9):547-54.
2004: Andreas Raffel; Kenko Cupisti; B Dotzenrath; B Krüger; Christian Ohmann; Klaus-Martin Schulte; Peter E Goretzki; Hans-Dietrich Röher
[Economic restraints shorten the length of hospital stay: thyroid operation as a model case].
Der Chirurg; Zeitschrift für alle Gebiete der operativen Medizen 2004;75(7):702-5.
2004: Wolfgang Gaebel; Hans-Jürgen Möller; Gerhard Buchkremer; Christian Ohmann; Mathias Riesbeck; Wolfgang Wölwer; Martina Von Wilmsdorff; Ronald Bottlender; Stefan Klingberg
Pharmacological long-term treatment strategies in first episode schizophrenia--study design and preliminary results of an ongoing RCT within the German Research Network on Schizophrenia.
European archives of psychiatry and clinical neuroscience 2004;254(2):129-40.
2003: Hinrich Böhner; Thomas C Hummel; Ute Habel; Caesar Miller; Stefan Reinbott; Qin Yang; Andrea Gabriel; Ralf Friedrichs; Eckhard E Müller; Christian Ohmann; Wilhelm Sandmann; Frank Schneider
Predicting delirium after vascular surgery: a model based on pre- and intraoperative data.
Annals of surgery 2003;238(1):149-56.
2003: NM Bösing; B Schumacher; T Frieling; Christian Ohmann; RM Jungblut; Heinrich Josef Lübke; Hinrich Böhner; PR Verreet; Hans-Dietrich Röher
[Endoscopic ultrasound in routine clinical practice for staging adenocarcinomas of the stomach and distal esophagus].
Der Chirurg; Zeitschrift für alle Gebiete der operativen Medizen 2003;74(3):214-21; discussion 222-3.
2003: Michael Imhof; Christian Ohmann; Hans-Dietrich Röher; Holger Glutig
Endoscopic versus operative treatment in high-risk ulcer bleeding patients - results of a randomised study.
Langenbeck's archives of surgery / Deutsche Gesellschaft für Chirurgie 2003;387(9-10):327-36.
2002: Milan Zorman; Hans-Peter Eich; Bruno Stiglic; Christian Ohmann; Mitja Lenic
Does size really matter--using a decision tree approach for comparison of three different databases from the medical field of acute appendicitis.
Journal of medical systems 2002;26(5):465-77.
2002: Christian Ohmann; C Franke; M Kraemer; Q Yang
[Status report on epidemiology of acute appendicitis].
Der Chirurg; Zeitschrift für alle Gebiete der operativen Medizen 2002;73(8):769-76.
2002: C Franke; A Holzum; Hinrich Böhner; T Baehring; Christian Ohmann
[Computer-assisted case-based education in surgery].
Der Chirurg; Zeitschrift für alle Gebiete der operativen Medizen 2002;73(5):487-91.
2002: C Franke; Claus-Dieter Gerharz; Hinrich Böhner; Christian Ohmann; G Heydrich; H J Krämling; W Stock; D Rosen; K Kurpreugsch; Hans-Dietrich Röher
Neurogenic appendicopathy: a clinical disease entity?
International journal of colorectal disease 2002;17(3):185-91.
2002: C Franke; Claus-Dieter Gerharz; Hinrich Böhner; Christian Ohmann; G Heydrich; H-J Krämling; W Stock; D Rosen; K Kurpreugsch; Ulrich Willnow; Hans-Dietrich Röher
Neurogenic appendicopathy in children.
European journal of pediatric surgery : official journal of Austrian Association of Pediatric Surgery ... [et al] = Zeitschrift für Kinderchirurgie 2002;12(1):28-31.
2002: M Linzbach; H P Eich; Christian Ohmann
[Integrated clinical guidelines].
Kongressband / Deutsche Gesellschaft für Chirurgie. Deutsche Gesellschaft für Chirurgie. Kongress 2002;119():883-6.
2001: Marcel Lucas Müller; Thomas Ganslandt; H P Eich; K Lang; Christian Ohmann; Hans-Ulrich Prokosch
Towards integration of clinical decision support in commercial hospital information systems using distributed, reusable software and knowledge components.
International journal of medical informatics 2001;64(2-3):369-77.
2001: Michael Wilhelm; Juergen Hoelzer; K Luebbers; G Stoehr; Christian Ohmann
Aluminum balance in intensive care patients.
Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) 2001;14(4):223-7.
2001: Cornelia M E Dotzenrath; Kenko Cupisti; Peter E Goretzki; Qin Yang; Dietmar Simon; Christian Ohmann; Hans-Dietrich Röher
Long-term biochemical results after operative treatment of primary hyperparathyroidism associated with multiple endocrine neoplasia types I and IIa: is a more or less extended operation essential?
The European journal of surgery = Acta chirurgica 2001;167(3):173-8.
2001: Cornelia M E Dotzenrath; Peter E Goretzki; Kenko Cupisti; Dietmar Simon; Jürgen Witte; Q Yang; Christian Ohmann; Hans-Dietrich Röher
Is there any consensus in diagnostic and operative strategy with respect to medullary thyroid cancer? A questionnaire answered by 73 endocrine surgical units.
Langenbeck's archives of surgery / Deutsche Gesellschaft für Chirurgie 2001;386(1):47-52.
2001: Christian Ohmann; J Albrecht
[Coordination centers for clinical studies--structure and integration of non-university hospitals].
Kongressband / Deutsche Gesellschaft für Chirurgie. Deutsche Gesellschaft für Chirurgie. Kongress 2001;118():804-8.
2001: Gabriela Möslein; J Albrecht; Christian Ohmann; Hans K Schackert
[Preventive therapy of HNPCC--a study concept].
Kongressband / Deutsche Gesellschaft für Chirurgie. Deutsche Gesellschaft für Chirurgie. Kongress 2001;118():213-7.
2001: Milan Zorman; H P Eich; Peter Kokol; Christian Ohmann
Comparison of three databases with a decision tree approach in the medical field of acute appendicitis.
Studies in health technology and informatics 2001;84(Pt 2):1414-8.
2000: Birgit Aust; Christian Ohmann
[Previous experiences with the evaluation of guidelines. Disillusionment after an enthusiastic start].
Zeitschrift für ärztliche Fortbildung und Qualitätssicherung 2000;94(5):365-71.
2000: Christian Ohmann; J Albrecht
Lessons to be learned for gastroenterology from recent issues in clinical trial methodology.
Canadian journal of gastroenterology = Journal canadien de gastroenterologie 2000;14(4):293-8.
2000: Hans-Dietrich Röher; PR Verreet; O Wörmer; FP Müller; Christian Ohmann; W Fischbach
Helicobacter pylori in the upper gastrointestinal tract: medical or surgical treatment of gastric lymphoma?
Langenbeck's archives of surgery / Deutsche Gesellschaft für Chirurgie 2000;385(2):97-105.
2000: Christian Ohmann; Michael Imhof; Hans-Dietrich Röher
Trends in peptic ulcer bleeding and surgical treatment.
World journal of surgery 2000;24(3):284-93.
2000: Ansgar Röhrborn; Hannes Wacha; U Schöffel; A Billing; P Aeberhard; B Gebhard; I Böcker; V Schäfer; Christian Ohmann
Coverage of enterococci in community acquired secondary peritonitis: results of a randomized trial.
Surgical infections 2000;1(2):95-107.
2000: Birgit Aust; Christian Ohmann
[Previous experiences with evaluation of practice guidelines].
Zentralblatt für Chirurgie 2000;125 Suppl 2():141-5.
2000: Christian Ohmann
[What studies are useful within the scope of quality assurance?].
Zentralblatt für Chirurgie 2000;125 Suppl 2():117-22.
2000: Marcel Lucas Müller; Thomas Ganslandt; H P Eich; K Lang; Christian Ohmann; Hans-Ulrich Prokosch
Integrating knowledge based functionality in commercial hospital information systems.
Studies in health technology and informatics 2000;77():817-21.
2000: O Boy; Christian Ohmann; Birgit Aust; Hans-Peter Eich; M Koller; O Knode; U Nolte
[Systematic evaluation of user satisfaction of physicians with a hospital information system--initial results].
Studies in health technology and informatics 2000;77():518-22.
2000: W Kuchinke; Hans-Peter Eich; Christian Ohmann
[Acceptance and future of the internet for clinical trials in Germany--results of a survey].
Studies in health technology and informatics 2000;77():343-7.
1999: Christian Ohmann; C Franke; Q Yang
Clinical benefit of a diagnostic score for appendicitis: results of a prospective interventional study. German Study Group of Acute Abdominal Pain.
Archives of surgery (Chicago, Ill. : 1960) 1999;134(9):993-6.
1999: Birgit Aust; Thomas Ganslandt; H Sitter; U Prokosch; A Zielke; Christian Ohmann
[Formal decision aids in surgery--results of a survey].
Der Chirurg; Zeitschrift für alle Gebiete der operativen Medizen 1999;70(7):823-9.
1999: Hannes Wacha; Toni Hau; R Dittmer; Christian Ohmann
Risk factors associated with intraabdominal infections: a prospective multicenter study. Peritonitis Study Group.
Langenbeck's archives of surgery / Deutsche Gesellschaft für Chirurgie 1999;384(1):24-32.
1999: C Franke; Hinrich Böhner; Q Yang; Christian Ohmann; Hans-Dietrich Röher
Ultrasonography for diagnosis of acute appendicitis: results of a prospective multicenter trial. Acute Abdominal Pain Study Group.
World journal of surgery 1999;23(2):141-6.
1999: Christian Ohmann; Hans-Peter Eich; Juan Sancho; C Diaz; G Faba; N Oliveri; SE Clamp; J M Cavanillas; E Coello
European and Latin-American countries associated in a networked database of outstanding guidelines in unusual clinical cases (ELCANO).
Studies in health technology and informatics 1999;68():59-63.
1999: Hans-Peter Eich; Christian Ohmann
Generalisation and extension of a web-based data collection system for clinical studies using Java and CORBA.
Studies in health technology and informatics 1999;68():568-72.
1998: Hinrich Böhner; Qin Yang; C Franke; PR Verreet; Christian Ohmann
Simple data from history and physical examination help to exclude bowel obstruction and to avoid radiographic studies in patients with acute abdominal pain.
The European journal of surgery = Acta chirurgica 1998;164(10):777-84.
1998: Christian Ohmann
Prognostic scores and design of clinical studies.
Infection 1998;26(5):342-4.
1998: H Sippel; Christian Ohmann
A web-based data collection system for clinical studies using Java.
Medical informatics = Médecine et informatique 1998;23(3):223-9.
1998: NM Bösing; PR Verreet; Christian Ohmann; Hans-Dietrich Röher
[Early stomach carcinoma--pathologic-anatomic findings and prognosis].
Der Chirurg; Zeitschrift für alle Gebiete der operativen Medizen 1998;69(3):259-63; discussion 264.
1998: C Franke; Christian Ohmann; Q Yang
[Clinical value of diagnostic score for appendicitis: results of a prospective intervention study].
Langenbecks Archiv für Chirurgie. Supplement. Kongressband. Deutsche Gesellschaft für Chirurgie. Kongress 1998;115(Suppl I):511-5.
1998: Christian Ohmann; Hans-Peter Eich; H Sippel
A data dictionary approach to multilingual documentation and decision support for the diagnosis of acute abdominal pain. (COPERNICUS 555, an European concerted action).
Studies in health technology and informatics 1998;52 Pt 1():462-6.
1998: H Sippel; Hans-Peter Eich; Christian Ohmann
Data collection in multi-center clinical trials via Internet. A generic system in Java.
Studies in health technology and informatics 1998;52 Pt 1():93-7.
1998: C Franke; Christian Ohmann; Hinrich Böhner; Hans-Dietrich Röher
[Is ultrasound examination in acute appendicitis dispensable? Acute Abdominal Pain Study Group].
Langenbecks Archiv für Chirurgie. Supplement. Kongressband. Deutsche Gesellschaft für Chirurgie. Kongress 1998;115():1114-6.
1998: G Stöhr; M Kunze; Christian Ohmann; H D Röher; Heinz Becker
[Cause-oriented prevention of nosocomial pneumonia: the HI-LO EVAC tube].
Langenbecks Archiv für Chirurgie. Supplement. Kongressband. Deutsche Gesellschaft für Chirurgie. Kongress 1998;115():1071-3.
1998: Hinrich Böhner; Q Yang; K Franke; Christian Ohmann
[Avoiding abdominal roentgen images in acute abdominal pain--evaluation of a simple clinical decision support aid].
Langenbecks Archiv für Chirurgie. Supplement. Kongressband. Deutsche Gesellschaft für Chirurgie. Kongress 1998;115():982-4.
1998: Michael Imhof; C Schröders; Christian Ohmann; Hans-Dietrich Röher
Impact of early operation on the mortality from bleeding peptic ulcer --ten years' experience.
Digestive surgery 1998;15(4):308-14.
1997: Christian Ohmann; Toni Hau
Prognostic indices in peritonitis.
Hepato-gastroenterology 1997;44(16):937-46.
1997: Michael Imhof; Christian Ohmann; A Hartwig; K P Thon; K J Hengels; Hans-Dietrich Röher
Which peptic ulcers bleed? Results of a case-control study. DUSUK Study Group.
Scandinavian journal of gastroenterology 1997;32(2):131-8.
1997: Christian Ohmann; O Boy; Q Yang
A systematic approach to the assessment of user satisfaction with health care systems: constructs, models and instruments.
Studies in health technology and informatics 1997;43 Pt B():781-5.
1997: E Keim; H Sippel; Hans-Peter Eich; Christian Ohmann
Collection of data in clinical studies via Internet.
Studies in health technology and informatics 1997;43 Pt A():57-60.
1997: Hans-Peter Eich; Christian Ohmann; E Keim; K Lang
Integration of a knowledge-based system and a clinical documentation system via a data dictionary.
Studies in health technology and informatics 1997;43 Pt A():431-5.
1997: Hinrich Böhner; Q Yang; C Franke; PR Verreet; Christian Ohmann
[Roentgen imaging in acute abdominal pain is dispensable].
Langenbecks Archiv für Chirurgie. Supplement. Kongressband. Deutsche Gesellschaft für Chirurgie. Kongress 1997;114():1054-6.
1997: Christian Ohmann
[Surgical epidemiology].
Langenbecks Archiv für Chirurgie. Supplement. Kongressband. Deutsche Gesellschaft für Chirurgie. Kongress 1997;114():293-9.
1997: Jürgen Witte; U Schlotmann; Dietmar Simon; Cornelia M E Dotzenrath; Christian Ohmann; Peter E Goretzki
[Significance of lymph node metastases of differentiated thyroid gland carcinomas and C-cell carcinomas for prognosis--a meta-analysis].
Zentralblatt für Chirurgie 1997;122(4):259-65.
1997: Christian Ohmann; Qin Yang; Toni Hau; Hannes Wacha
Prognostic modelling in peritonitis. Peritonitis Study Group of the Surgical Infection Society Europe.
The European journal of surgery = Acta chirurgica 1997;163(1):53-60.
1996: C P Schröders; Michael Imhof; Christian Ohmann; Hans-Dietrich Röher
[Ulcer hemorrhage in elderly patients: primary conservative or surgical therapy?].
Langenbecks Archiv für Chirurgie. Supplement. Kongressband. Deutsche Gesellschaft für Chirurgie. Kongress 1996;113():467-9.
1996: Hans-Dietrich Röher; Michael Imhof; Peter E Goretzki; Christian Ohmann
[Ulcer surgery '96--choice of methods in an emergency].
Der Chirurg; Zeitschrift für alle Gebiete der operativen Medizen 1996;67(1):20-5.
1996: C Franke; PR Verreet; Christian Ohmann; Hinrich Böhner; Hans-Dietrich Röher
[Clinical standardization in acute abdominal pain].
Langenbecks Archiv für Chirurgie 1996;381(2):65-74.
1995: T Hau; Christian Ohmann; A Wolmershäuser; Hannes Wacha; Q Yang
Planned relaparotomy vs relaparotomy on demand in the treatment of intra-abdominal infections. The Peritonitis Study Group of the Surgical Infection Society-Europe.
Archives of surgery (Chicago, Ill. : 1960) 1995;130(11):1193-6; discussion 1196-7.
1995: O Horstmann; PR Verreet; H Becker; Christian Ohmann; Hans-Dietrich Röher
Transhiatal oesophagectomy compared with transthoracic resection and systematic lymphadenectomy for the treatment of oesophageal cancer.
The European journal of surgery = Acta chirurgica 1995;161(8):557-67.
1995: Christian Ohmann
[Quality assurance from the theoretical viewpoint].
Der Chirurg; Zeitschrift für alle Gebiete der operativen Medizen 1995;66(7):657-64.
1995: M Imhof; Christian Ohmann; PR Verreet; Hans-Dietrich Röher
[Surgical therapy of uncomplicated ulcer: results of a prospective epidemiologic study. DUSUK Study Group].
Zeitschrift für Gastroenterologie 1995;33(7):381-4.
1995: Michael Imhof; Christian Ohmann; Hans-Dietrich Röher
[The intensive care gallbladder--a transient phenomenon or a problem requiring therapy?].
Der Chirurg; Zeitschrift für alle Gebiete der operativen Medizen 1995;66(4):360-5.
1995: Christian Ohmann; Q Yang; C Franke
Diagnostic scores for acute appendicitis. Abdominal Pain Study Group.
The European journal of surgery = Acta chirurgica 1995;161(4):273-81.
1995: Christian Ohmann; C Franke; Q Yang; M Margulies; M Chan; P J van Elk; F T de Dombal; Hans-Dietrich Röher
[Diagnostic score for acute appendicitis].
Der Chirurg; Zeitschrift für alle Gebiete der operativen Medizen 1995;66(2):135-41.
1995: Christian Ohmann; G Belenky; C Platen
Integration of a data dictionary and a clinical database in an expert system for acute abdominal pain.
Medinfo. MEDINFO 1995;8 Pt 2():943-6.
1995: J Gardovskis; O Horstmann; Christian Ohmann; PR Verreet; Q Yang; R Wlasak; NM Bösing; F Borchard; Hans-Dietrich Röher
[Prognostic factors in curative resection of stomach carcinoma. A uni- and multivariate analysis].
Langenbecks Archiv für Chirurgie 1995;380(2):75-81.
1994: Hinrich Böhner; Q Yang; K Franke; Christian Ohmann
[Significance of anamnesis and clinical findings for diagnosis of acute appendicitis. Acute Abdominal Pain Study Group].
Zeitschrift für Gastroenterologie 1994;32(10):579-83.
1994: Helmut Sitter; Andreas Zielke; Christian Ohmann
[Making a decision in acute abdominal pain. Problem areas in particular patient groups and in routine quality assurance].
Der Chirurg; Zeitschrift für alle Gebiete der operativen Medizen 1994;65(4):270-7.
1993: Christian Ohmann; D H Wittmann; Hannes Wacha
Prospective evaluation of prognostic scoring systems in peritonitis. Peritonitis Study Group.
The European journal of surgery = Acta chirurgica 1993;159(5):267-74.
1993: Christian Ohmann; Wilhelm Gross-Weege
[Scoring systems in the surgical intensive care unit. II].
Der Chirurg; Zeitschrift für alle Gebiete der operativen Medizen 1993;64(1):21-7.
1992: Christian Ohmann; Wilhelm Gross-Weege
[Scoring systems in the surgical intensive care unit. I].
Der Chirurg; Zeitschrift für alle Gebiete der operativen Medizen 1992;63(12):1021-8.
1992: K Thon; Christian Ohmann; K J Hengels; Michael Imhof; Hans-Dietrich Röher
Peptic ulcer bleeding: medical and surgical point of view. Results of a prospective interdisciplinary multicenter observational study. DUSUK Study Group.
The Clinical investigator 1992;70(12):1061-9.
1992: Michael Imhof; J Raunest; Christian Ohmann; Hans-Dietrich Röher
Acute acalculous cholecystitis complicating trauma: a prospective sonographic study.
World journal of surgery 1992;16(6):1160-5; discussion 1166.
1992: Christian Ohmann; O Horstmann
[Formal decision aids in gastroenterology--results of a survey].
Zeitschrift für Gastroenterologie 1992;30(8):558-64.
1992: Christian Ohmann; K Thon; K J Hengels; Michael Imhof
Incidence and pattern of peptic ulcer bleeding in a defined geographical area. DUSUK Study Group.
Scandinavian journal of gastroenterology 1992;27(7):571-81.
1992: PR Verreet; Christian Ohmann; A Wolmershauser; Hans-Dietrich Röher
[Cholecystectomy through laparotomy].
La Revue du praticien 1992;42(12):1493-5.
1992: Georg Strohmeyer; Claus Niederau; Christian Ohmann; C Niederau; Hans-Dietrich Röher
[Gastrointestinal diseases in perioperative risk assessment].
Der Internist 1992;33(6):395-402.
1992: Michael Imhof; A Teetzmann; Christian Ohmann
[Sonomorphology of stress cholecystitis].
Ultraschall in der Medizin (Stuttgart, Germany : 1980) 1992;13(3):96-101.
1992: J Raunest; Michael Imhof; U Rauen; Christian Ohmann; K P Thon; K F Bürrig
Acute cholecystitis: a complication in severely injured intensive care patients.
The Journal of trauma 1992;32(4):433-40.
1992: Michael Imhof; J Raunest; U Rauen; Christian Ohmann
Acute acalculous cholecystitis in severely traumatized patients: a prospective sonographic study.
Surgical endoscopy 1992;6(2):68-71.
1992: Christian Ohmann; M Kraemer; S Jäger; Helmut Sitter; C Pohl; B Stadelmayer; P Vietmeier; J Wickers; L Latzke; B Koch
[Acute abdominal pain--standardized findings as diagnostic support. Results of a prospective multicenter intervention study and testing of a computer-assisted diagnosis system].
Der Chirurg; Zeitschrift für alle Gebiete der operativen Medizen 1992;63(2):113-22; discussion 122-3.
1991: H Stöltzing; Christian Ohmann; M Krick; K Thon
Diagnostic emergency endoscopy in upper gastrointestinal bleeding--do we have any decision aids for patient selection?
Hepato-gastroenterology 1991;38(3):224-7.
1990: Christian Ohmann; H Stöltzing; L Wins; E Busch; K Thon
Prognostic scores in oesophageal or gastric variceal bleeding.
Scandinavian journal of gastroenterology 1990;25(5):501-12.
1990: P O Nyström; R Bax; E P Dellinger; L Dominioni; W A Knaus; J L Meakins; Christian Ohmann; J S Solomkin; Hannes Wacha; D H Wittmann
Proposed definitions for diagnosis, severity scoring, stratification, and outcome for trials on intraabdominal infection. Joint Working Party of SIS North America and Europe.
World journal of surgery 1990;14(2):148-58.
1989: H Stöltzing; B Birkner; R Lindlar; Christian Ohmann; R Zaczyk; O Kuntzen; H Kaess; K Thon; Wilfried Lorenz
[Computer-assisted documentation in upper gastrointestinal endoscopy: experiences with routine use at 3 clinics].
Zeitschrift für Gastroenterologie 1989;27(11):667-75.
1989: Peter E Goretzki; A Frilling; Christian Ohmann; L Wins; M Grussendorf; Hans-Dietrich Röher
[Various strategies in the diagnosis and therapy of thyroid gland cancer. Results of a survey].
Der Chirurg; Zeitschrift für alle Gebiete der operativen Medizen 1989;60(6):398-402.
1989: PR Verreet; C Fakir; Christian Ohmann; Hans-Dietrich Röher
Preventing recurrent postoperative adhesions: an experimental study in rats.
European surgical research. Europäische chirurgische Forschung. Recherches chirurgicales européennes 1989;21(5):267-73.
1988: Christian Ohmann; Q Yang; M Künneke; H Stöltzing; K Thon; W Lorenz
Bayes theorem and conditional dependence of symptoms: different models applied to data of upper gastrointestinal bleeding.
Methods of information in medicine 1988;27(2):73-83.
1988: M Ennis; Christian Ohmann; Wilfried Lorenz; R Zaczyk; B Schöning
Prediction of risk for pseudoallergic reactions and histamine release in patients undergoing anaesthesia and surgery: a computer-aided model using independence-Bayes.
Agents and actions 1988;23(3-4):366-9.
1987: Wilfried Lorenz; K Thon; E Neugebauer; H Stöltzing; Christian Ohmann; D Weber; A Schmal; E Hinterlang; H Barth; J Kusche
Reliability and practicability of the fluorometric-fluoroenzymatic histamine determination in pathogenetic studies on peptic ulcer: detection limits and problems with specificity.
Agents and actions 1987;21(1-2):1-25.
1987: Christian Ohmann; Wilfried Lorenz; H Stöltzing; K Thon
[Principles of risk research in surgery: definition, calculation and clinical use in the problem of upper gastrointestinal hemorrhage].
Der Chirurg; Zeitschrift für alle Gebiete der operativen Medizen 1987;58(5):344-51.
1987: Christian Ohmann; Wilfried Lorenz
[Quantifications of perioperative risk].
Langenbecks Archiv für Chirurgie 1987;372():211-6.
1987: Wilfried Lorenz; W Dick; T Junginger; Christian Ohmann; A Doenicke; Matthias Rothmund
[Biomedical and clinimetric approaches in determining the causes of perioperative risk: developing a German ASA classification].
Langenbecks Archiv für Chirurgie 1987;372():199-209.
1986: Wilfried Lorenz; Christian Ohmann; H Stöltzing; K Thon
[Principles of surgical indications: aids in decision making].
Langenbecks Archiv für Chirurgie 1986;369():57-63.
1982: Wilfried Lorenz; A Schmal; H Schult; S Lang; Christian Ohmann; D Weber; B Kapp; L Lüben; Alfred W Doenicke
Histamine release and hypotensive reactions in dogs by solubilizing agents and fatty acids: analysis of various components in cremophor El and development of a compound with reduced toxicity.
Agents and actions 1982;12(1-2):64-80.
1981: J Kusche; Wilfried Lorenz; C D Stahlknecht; H Richter; R Hesterberg; A Schmal; E Hinterlang; D Weber; Christian Ohmann
Intestinal diamine oxidase and histamine release in rabbit mesenteric ischemia.
Gastroenterology 1981;80(5 pt 1):980-7.