Chih-Jen Huang1, Ming-Feng Hou2, Kuei-Hau Luo3, Shu-Yi Wei4, Ming-Yii Huang1, Suh-Jen Su5, Hung-Ying Kuo5, Shyng-Shiou F Yuan6, Gwo-Shing Chen7, Stephen Chu-Sung Hu8, Hung-Yi Chuang9. 1. Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Radiation Oncology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan. 2. Department of General Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; National Sun Yat-Sen University - Kaohsiung Medical University Joint Research Center, Kaohsiung, Taiwan. 3. Institute of Occupational Safety and Health, Department of Public Health, Kaohsiung Medical University, Kaohsiung, Taiwan. 4. Division of Nephrology, Department of Internal Medicine, Kaohsiung Municipal United Hospital, Kaohsiung, Taiwan. 5. Department of Radiation Oncology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan. 6. Translational Research Center, Department of Obstetrics and Gynecology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan. 7. Department of Dermatology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; Department of Dermatology, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan. 8. Department of Dermatology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; Department of Dermatology, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan. Electronic address: stephenhu30@hotmail.com. 9. National Sun Yat-Sen University - Kaohsiung Medical University Joint Research Center, Kaohsiung, Taiwan; Institute of Occupational Safety and Health, Department of Public Health, Kaohsiung Medical University, Kaohsiung, Taiwan.
Abstract
BACKGROUND: Various clinician-assessed scoring criteria have been used to grade acute radiation dermatitis. However, it is not known whether these scoring criteria correlate with changes in objective skin biophysical parameters and patient-reported symptoms following radiotherapy. We seek to correlate three different clinician-assessed scoring criteria with skin biophysical changes and patient-reported symptoms in breast cancer patients undergoing radiotherapy. METHODS: A prospective cohort study was performed in a university hospital medical center. The severity of acute radiation dermatitis in 101 breast cancer patients was graded using the RTOG, CTCAE and WHO clinical scoring criteria. We also measured various skin biophysical parameters (skin blood flow, pigmentation, hydration, and pH) by non-invasive techniques before and after radiotherapy. Patient-reported breast symptoms (pain, itching, local heat, and tightness) were evaluated using a questionnaire. RESULTS: The three different clinician-assessed scoring criteria correlated most strongly with changes in cutaneous blood flow following radiotherapy for breast cancer (correlation coefficient 0.70 for RTOG, 0.68 for CTCAE, and 0.50 for WHO). All three scoring criteria also showed moderate correlation with changes in skin pigmentation (correlation coefficients 0.4-0.5), but showed no significant correlation with skin hydration or pH (correlation coefficients <0.2). The scoring criteria correlated poorly with patient-reported breast symptoms (correlation coefficients <0.3). CONCLUSIONS: The three clinician-assessed scoring criteria (especially the RTOG and CTCAE criteria) show strong correlation with cutaneous blood flow measurements, but correlate less well with other skin biophysical parameters and patient-reported symptoms.
BACKGROUND: Various clinician-assessed scoring criteria have been used to grade acute radiation dermatitis. However, it is not known whether these scoring criteria correlate with changes in objective skin biophysical parameters and patient-reported symptoms following radiotherapy. We seek to correlate three different clinician-assessed scoring criteria with skin biophysical changes and patient-reported symptoms in breast cancerpatients undergoing radiotherapy. METHODS: A prospective cohort study was performed in a university hospital medical center. The severity of acute radiation dermatitis in 101 breast cancerpatients was graded using the RTOG, CTCAE and WHO clinical scoring criteria. We also measured various skin biophysical parameters (skin blood flow, pigmentation, hydration, and pH) by non-invasive techniques before and after radiotherapy. Patient-reported breast symptoms (pain, itching, local heat, and tightness) were evaluated using a questionnaire. RESULTS: The three different clinician-assessed scoring criteria correlated most strongly with changes in cutaneous blood flow following radiotherapy for breast cancer (correlation coefficient 0.70 for RTOG, 0.68 for CTCAE, and 0.50 for WHO). All three scoring criteria also showed moderate correlation with changes in skin pigmentation (correlation coefficients 0.4-0.5), but showed no significant correlation with skin hydration or pH (correlation coefficients <0.2). The scoring criteria correlated poorly with patient-reported breast symptoms (correlation coefficients <0.3). CONCLUSIONS: The three clinician-assessed scoring criteria (especially the RTOG and CTCAE criteria) show strong correlation with cutaneous blood flow measurements, but correlate less well with other skin biophysical parameters and patient-reported symptoms.
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