| Influence of Antiflatulent Dietary Advice on Intrafraction Motion for Prostate Cancer Radiotherapy. | |
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MedLine Citation:
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PMID: 21664067 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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PURPOSE: To evaluate the effect of an antiflatulent dietary advice on the intrafraction prostate motion in patients treated with intensity-modulated radiotherapy (IMRT) for prostate cancer. METHODS AND MATERIALS: Between February 2002 and December 2009, 977 patients received five-beam IMRT for prostate cancer to a dose of 76 Gy in 35 fractions combined with fiducial markers for position verification. In July 2008, the diet, consisting of dietary guidelines to obtain regular bowel movements and to reduce intestinal gas by avoiding certain foods and air swallowing, was introduced to reduce the prostate motion. The intrafraction prostate movement was determined from the portal images of the first segment of all five beams. Clinically relevant intrafraction motion was defined as ≥50% of the fractions with an intrafraction motion outside a range of 3 mm. RESULTS: A total of 739 patients were treated without the diet and 105 patients were treated with radiotherapy after introduction of the diet. The median and interquartile range of the average intrafraction motion per patient was 2.53 mm (interquartile range, 2.2-3.0) without the diet and 3.00 mm (interquartile range, 2.4-3.5) with the diet (p < .0001). The percentage of patients with clinically relevant intrafraction motion increased statistically significant from 19.1% without diet to 42.9% with a diet (odds ratio, 3.18; 95% confidence interval, 2.07-4.88; p < .0001). CONCLUSIONS: The results of the present study suggest that antiflatulent dietary advice for patients undergoing IMRT for prostate cancer does not reduce the intrafraction movement of the prostate. Therefore, antiflatulent dietary advice is not recommended in clinical practice for this purpose. |
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Authors:
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Irene M Lips; Alexis N T J Kotte; Carla H van Gils; Monique E van Leerdam; Uulke A van der Heide; Marco van Vulpen |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-6-8 |
Journal Detail:
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Title: International journal of radiation oncology, biology, physics Volume: - ISSN: 1879-355X ISO Abbreviation: - Publication Date: 2011 Jun |
Date Detail:
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Created Date: 2011-6-13 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7603616 Medline TA: Int J Radiat Oncol Biol Phys Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 Elsevier Inc. All rights reserved. |
Affiliation:
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Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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