PMID- 14528089 OWN - NLM STAT- MEDLINE DCOM- 20040219 LR - 20041117 IS - 1537-453X (Electronic) IS - 0277-3732 (Linking) VI - 26 IP - 5 DP - 2003 Oct TI - Patient-reported toxicity correlated to dose-volume histograms of the rectum in radiotherapy of the prostate. PG - e144-9 AB - We studied 73 patients treated with 3-dimensional conformal radiotherapy for prostate cancer to determine whether there is a correlation between dose per volume to either the whole rectum, rectal wall, rectal surface, or anal canal and the development of late rectal complications measured with prostate-specific quality-of-life (QOL) questionnaires. Given doses were 66.6 to 72 Gy. The prostate cancer modules used were the UCLA-Prostate Cancer Index module (UCLA-PCI) (5 questions), the Functional Assessment of Cancer Therapy-Prostate module (FACT-P) (1 question), and the European Organization for Research and Treatment of Cancer prostate cancer module (EORTC QLQ-PR25) (4 questions). A Spearman correlation analysis between the total toxicity score and the dose-volume histograms (DVHs) was performed. All statistical tests were 2-sided. Sixty-five (89%) patients returned the questionnaire, and 18 (28%) underwent endoscopy for rectal bleeding. We found that only patients who had had an endoscopy showed a correlation between rectal toxicity and dose per volume, as compared with the other patients who showed none. Correlation between rectal toxicity and dose per volume for all 4 structures was stronger for higher doses. For 70 Gy, all contours, except the anal canal, showed a significant dose-volume correlation. Our results indicate that only in cases of pronounced rectal toxicity is there a dose-volume correlation, especially for doses of 70 Gy or more. DVHs of the whole rectum, wall, or surface, but not the anal canal, are all equivalent in predicting late rectal toxicity. FAU - Taussky, Daniel AU - Taussky D AD - Department of Radiation Oncology and Nuclear Medicine, Triemli Hospital, Zurich, Switzerland. dantaussky@hotmail.com FAU - Schneider, Uwe AU - Schneider U FAU - Rousson, Valentin AU - Rousson V FAU - Pescia, Raoul AU - Pescia R LA - eng PT - Journal Article PL - United States TA - Am J Clin Oncol JT - American journal of clinical oncology JID - 8207754 SB - IM MH - Aged MH - Dose-Response Relationship, Radiation MH - Humans MH - Male MH - Middle Aged MH - Prostatic Neoplasms/*radiotherapy MH - Quality of Life MH - Radiotherapy, Conformal MH - Rectum/*radiation effects EDAT- 2003/10/07 05:00 MHDA- 2004/02/20 05:00 CRDT- 2003/10/07 05:00 PHST- 2003/10/07 05:00 [pubmed] PHST- 2004/02/20 05:00 [medline] PHST- 2003/10/07 05:00 [entrez] AID - 10.1097/01.coc.0000091355.26165.81 [doi] PST - ppublish SO - Am J Clin Oncol. 2003 Oct;26(5):e144-9. doi: 10.1097/01.coc.0000091355.26165.81.