Simon Hölzer

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BACKGROUND The American College of Surgeons Commission on Cancer (CoC) has conducted national Patient Care Evaluation (PCE) studies since 1976. METHODS Over 1500 hospitals with CoC-approved cancer programs were invited to participate in this prospective cohort study of U.S. thyroid carcinoma cases treated in 1996. Follow-up will be conducted through the(More)
BACKGROUND To determine current patterns of care and disease characteristics for patients with thyroid carcinoma, a Patient Care Evaluation Study was initiated in 1996 in the U.S. and Germany. This project addresses ongoing concerns with respect to the diagnostic evaluation and treatment of patients diagnosed with thyroid carcinoma and raises questions(More)
Most healthcare data is narrative text and often not accessible and easy to find at the clinical workstation. XML related standards (XML schema, XForms, XSL, Topic Maps, etc.) provide an infrastructure that might change the situation. Yet, it is up to the application developers to combine the given standards and tools into a running system. The cost of(More)
The developing infrastructure for tumour documentation in Germany offers the unique opportunity to provide the physicians with useful clinical information, to evaluate standards of care, and get an impression about the "real-world-effectiveness" of cancer care. In order to compare and evaluate diagnostic and therapeutic approaches in different medical(More)
j J Am Med Inform Assoc. 2003;10:463–469. DOI 10.1197/jamia.M1258. Adaptability, maintenance, and updating are critical if a classification system is to be dynamic enough to be used in our rapidly changing world. Unlike previous revisions, ICD-10 allows enhancements to accommodate newly discovered diseases, such as AIDS. The World Health Organization (WHO)(More)
Due to the information overload and the unstructured access to (medical) information of the internet, it isn't hardly possible to find problem-relevant medical information in an appropriate time (e.g. during a consultation). The web offers a mixture of web pages, forums, newsgroups and databases. The search for problem-relevant information for a certain(More)
This prospective, observational study of a cohort of thyroid cancer patients in Germany focusses on the "real-world" practice in the management of thyroid cancer patients. This report includes data from 2376 patients with primary differentiated thyroid carcinoma first diagnosed in the year 1996. The study reveals considerable differences in actual practice(More)
Clinical practice guidelines (CPGs) play an increasingly important role in the harmonisation process of health care delivery and disease management. It is known that nationally or internationally produced guidelines that have no consistent implementation strategy, have limited impact in changing physicians' behaviour and patterns of care. The literature(More)
OBJECTIVES Data and information in medicine are mainly represented in slightly structured or even unstructured, narrative text documents. It is nearly impossible to detect and handle relationships between data elements within narrative documents or to retrieve parts of documents that contain specific information. But information access and retrieval are(More)