Acute toxicity in prostate cancer patients treated with and without image-guided radiotherapy

Radiation Oncology

Farshad Foroudi⁵  Gillian M Duchesne⁵  Keen Hun Tai⁵  Scott Williams⁵  Sarat Chander²  Mary Leahy⁴  Aldo Rolfo³  Tomas Kron¹  Chris Fox¹  Jessica Thomas²  Suki Gill² 

[1] Department of Physical Sciences, Peter MacCallum Cancer Centre, Melbourne, Australia;Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia;Radiation Therapy Services, Peter MacCallum Cancer Centre, Melbourne, Australia;Department of Nursing, Peter MacCallum Cancer Centre, Melbourne, Australia;Department of Pathology, University of Melbourne, Melbourne, Australia

关键词: prostate cancer;    image-guided radiotherapy;    Acute toxicity;   

Others  :  1223870
DOI  :  10.1186/1748-717X-6-145

 received in 2011-06-08, accepted in 2011-10-28,  发布年份 2011

【 摘 要 】

Background

Image-guided radiotherapy (IGRT) increases the accuracy of treatment delivery through daily target localisation. We report on toxicity symptoms experienced during radiotherapy treatment, with and without IGRT in prostate cancer patients treated radically.

Methods

Between 2006 and 2009, acute toxicity data for ten symptoms were collected prospectively onto standardized assessment forms. Toxicity was scored during radiotherapy, according to the Common Terminology Criteria Adverse Events V3.0, for 275 prostate cancer patients before and after the implementation of a fiducial marker IGRT program and dose escalation from 74Gy in 37 fractions, to 78Gy in 39 fractions. Margins and planning constraints were maintained the same during the study period. The symptoms scored were urinary frequency, cystitis, bladder spasm, urinary incontinence, urinary retention, diarrhoea, haemorrhoids, proctitis, anal skin discomfort and fatigue. Analysis was conducted for the maximum grade of toxicity and the median number of days from the onset of that toxicity to the end of treatment.

Results

In the IGRT group, 14228 toxicity scores were analysed from 249 patients. In the non-IGRT group, 1893 toxicity scores were analysed from 26 patients. Urinary frequency ≥G3 affected 23% and 7% in the non-IGRT and IGRT group respectively (p = 0.0188). Diarrhoea ≥G2 affected 15% and 3% of patients in the non-IGRT and IGRT groups (p = 0.0174). Fatigue ≥G2 affected 23% and 8% of patients in the non-IGRT and IGRT groups (p = 0.0271). The median number of days with a toxicity was higher for ≥G2 (p = 0.0179) and ≥G3 frequency (p = 0.0027), ≥G2 diarrhoea (p = 0.0033) and ≥G2 fatigue (p = 0.0088) in the non-IGRT group compared to the IGRT group. Other toxicities were not of significant statistical difference.

Conclusions

In this study, prostate cancer patients treated radically with IGRT had less severe urinary frequency, diarrhoea and fatigue during treatment compared to patients treated with non-IGRT. Onset of these symptoms was earlier in the non-IGRT group. IGRT results in less acute toxicity during radiotherapy in prostate cancer.

【 授权许可】

   
2011 Gill et al; licensee BioMed Central Ltd.

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