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  • Title: Improvement of the initial management of sarcomas after the dissemination of evidence-based guidelines depends on the primary sarcoma location: a population-based study.
    Author: Ligier K, Maynou C, Leroy X, Robin YM, Martin P, Clisant S, Richard F, Penel N.
    Journal: BMC Cancer; 2015 Apr 02; 15():218. PubMed ID: 25886606.
    Abstract:
    BACKGROUND: Improvement of the initial management of sarcomas after the dissemination of evidence-based guidelines depends on the primary sarcoma location: a population-based study. To improve the initial management of adult sarcomas, a regional expert team in Northern France performed two actions: dissemination of evidence-based guidelines (EBG) for the management of soft tissue/visceral sarcoma and yearly educational symposia. The aim of this study was to measure the impact of the dissemination of EBG on the key-indicators of adult sarcoma management. METHODS: We conducted a before-after population-based study (before: 2005 with 63 cases, after: 2008-2009 with 86 cases) in the Lille area (Northern France urban/sub-urban area with 800,000 inhabitants). The following were the key-indicators of adult sarcoma management: pre-therapeutic biopsy, appropriate tumour and chest imaging, expert interdisciplinary discussion, expert interdisciplinary discussion before the first treatment and in operated cases, the rate of R0 resection. RESULTS: There was no statistically significant difference in patient and tumour characteristics for the two time periods in terms of gender, prior cancer, primary location, histological subtype, grade, size, metastasis and lymph node involvement. There was no statistically significant improvement in primary tumour imaging (83 versus 87%), chest imaging (67 vs 71%), pre-therapeutic biopsy (57 vs 58%). There was an improvement in expert multidisciplinary discussion (37 vs 45%) or discussion before the first treatment (26 vs 44%) but no statistically significant. However, when soft tissue and bone sarcomas were analysed separately, we observed statistically significant improvements in expert multidisciplinary discussion (50 vs 74%, p = 0.02) and R0 resection rate (58 vs 91%, p = 0.002). In contrast, in cases of visceral sarcoma, there was no improvement in expert multidisciplinary discussion (10 vs 16%, p = 0.7) or in R0 resection (88 vs 81%, p = 0.7). CONCLUSIONS: The dissemination of EBG was associated with a limited improvement in sarcoma management when measured in this before-after population-based study, and this improvement was dependent on the primary location of the tumour. Efforts to implement these guidelines by all surgical teams that could treat sarcoma, including visceral sarcoma, need to be made.
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