Beam path toxicity in candidate organs-at-risk: Assessment of radiation emetogenesis for patients receiving head and neck intensity modulated radiotherapy RADIOTHERAPY AND ONCOLOGY Kocak-Uzel, E., Gunn, G. B., Colen, R. R., Kantor, M. E., Mohamed, A. S., Schoultz-Henley, S., Mavroidis, P., Frank, S. J., Garden, A. S., Beadle, B. M., Morrison, W. H., Phan, J., Rosenthal, D. I., Fuller, C. D. 2014; 111 (2): 281-288

Abstract

To investigate potential dose-response relationship between radiation-associated nausea and vomiting (RANV) reported during radiotherapy and candidate nausea/vomiting-associated regions of interest (CNV-ROIs) in head and neck (HNC) squamous cell carcinomas.A total of 130 patients treated with IMRT with squamous cell carcinomas of head and neck were evaluated. For each patient, CNV-ROIs were segmented manually on planning CT images. Clinical on-treatment RANV data were reconstructed by a review of the records for all patients. Dosimetric data parameters were recorded from dose-volume histograms. Nausea and vomiting reports were concatenated as a single binary "Any N/V" variable, and as a "CTC-V2+" variable.The mean dose to CNV-ROIs was higher for patients experiencing RANV events. For patients receiving IMRT alone, a dose-response effect was observed with varying degrees of magnitude, at a statistically significant level for the area postrema, brainstem, dorsal vagal complex, medulla oblongata, solitary nucleus, oropharyngeal mucosa and whole brain CNV-ROIs.RANV is a common therapy-related morbidity facing patients receiving HNC radiotherapy, and, for those receiving radiotherapy-alone, is associated with modifiable dose to specific CNS structures.

View details for DOI 10.1016/j.radonc.2014.02.019

View details for Web of Science ID 000339150100019

View details for PubMedID 24746582