Please use this identifier to cite or link to this item: http://ahro.austin.org.au/austinjspui/handle/1/10891
Title: The effect of an intensive nutritional program on daily set-up variations and radiotherapy planning margins of head and neck cancer patients.
Authors: Mercuri, A;Lim Joon, Daryl;Wada, Morikatsu;Rolfo, A;Khoo, Vincent
Affiliation: Department of Radiation Oncology, Austin Health, Heidelberg West, Victoria, Australia. angelina.mercuri@austin.org.au
Issue Date: 1-Oct-2009
Citation: Journal of Medical Imaging and Radiation Oncology; 53(5): 500-5
Abstract: This is a prospective case-control study to assess nutritional supplementation in limiting weight loss and its impact on daily set-up variations and planning target volume (PTV) margins in head and neck (H&N) radiotherapy (RT). Twenty sequential H&N patients were recruited for this study. Ten patients had a percutaneous endoscopic gastrostomy (PEG) tube inserted prior to RT and 10 did not. PEG use was determined by departmental guidelines for patients considered at high risk for weight loss. Daily 2D electronic portal images were taken for orthogonal verification. Set-up variations were determined for both PEG and non-PEG patients by calculating systematic (Sigma) and random (sigma) errors, and PTV margins were derived. PEG patients lost less weight (P = 0.04) over the course of RT and had a reduction in set-up variation in the superior-inferior (SI) and anterior-posterior (AP) planes compared to those without. Mean correctional shifts in mm (range) for PEG patients were: Right-Left (RL) 0.1 (-1.9-2.1), SI -1.7 (-2.9-0.0), AP -0.4 (-2.0-0.8), and for non-PEG patients were: RL -0.2 (-2.7-1.3), SI -1.3 (-3.1-1.0), AP 0.4 (-1.5-2.8). The adapted PTV margins (mm) in the RL, SI and AP planes, respectively, for PEG patients were 4.1, 3.3 and 3.6, and for non-PEG were 3.9, 4.9 and 4.8. Intensive enteral support maintained weight stability in H&N patients considered at risk of weight loss during RT and this was associated with reduced set-up variation.
Internal ID Number: 19788487
URI: http://ahro.austin.org.au/austinjspui/handle/1/10891
DOI: 10.1111/j.1754-9485.2009.02105.x
URL: http://www.ncbi.nlm.nih.gov/pubmed/19788487
Type: Journal Article
Subjects: Aged
Deglutition Disorders.diet therapy.etiology
Female
Head and Neck Neoplasms.complications.radiotherapy
Humans
Male
Middle Aged
Retrospective Studies
Treatment Outcome
Appears in Collections:Journal articles

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