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  • Title: Radiation therapy for nonmalignant diseases in Germany. Current concepts and future perspectives.
    Author: Seegenschmiedt MH, Micke O, Willich N.
    Journal: Strahlenther Onkol; 2004 Nov; 180(11):718-30. PubMed ID: 15549190.
    Abstract:
    BACKGROUND: Radiotherapy (RT) of nonmalignant diseases has a long-standing tradition in Germany. Over the past decade significant theoretical and clinical progress has been made in this field to be internationally recognized as an important segment of clinical RT. This development is reflected in a national patterns-of-care study (PCS) conducted during the years 2001-2002. MATERIAL AND METHODS: In 2001 and 2002, a questionnaire was mailed to all RT facilities in Germany to assess equipment, patient accrual, RT indications, and treatment concepts. 146 of 180 institutions (81%) returned all requested data: 23 university hospitals (UNI), 95 community hospitals (COM), and 28 private institutions (PRIV). The specific diseases treated at each institution and the RT concepts were analyzed for frequencies and ratios between the different institution types. All data were compared to the first PCS in 1994-1996. RESULTS: In 137 institutions (94%) 415 megavoltage units (mean 1.7; range 1-4), and in 78 institutions (53%) 112 orthovoltage units (mean 1.1; range 0-2) were available. A mean of 37,410 patients were treated per year in all institutions: 503 (1.3%) for inflammatory disorders, 23,752 (63.5%) for degenerative, 1,252 (3.3%) for hypertrophic, and 11,051 (29.5%) for functional, other and unspecified disorders. In comparison to the first PCS there was a significant increase of patients per year (from 20,082 to 37,410; +86.3%) in most nonmalignant diseases during the past 7-8 years. Most disorders were treated in accordance with the national consensus guidelines: the prescribed dose concepts (single and total doses) varied much less during the period 2001-2002 in comparison with the previous PCS in 1994-1996. Only five institutions (3.4%) received recommendations to change single or total doses and/or treatment delivery. Univariate analysis detected significant institutional differences in the use of RT for various disorders. CONCLUSION: RT is increasingly accepted in Germany as a reasonable treatment option for many nonmalignant diseases. The long-term perspective and research plan will have to include various updates of PCS, re-writing of consensus guidelines, introduction of registries for rare nonmalignant disorders, and clinical controlled studies even for so-called established indications, as international acceptance is based on the criteria of evidence-based medicine.
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