Chronic radiation-associated dysphagia in oropharyngeal cancer survivors: Towards age-adjusted dose constraints for deglutitive muscles

•Age at treatment for OPSCC is a strong predictor of chronic radiation associated dysphagia (RAD).•For swallowing regions of interest (ROIs), dose to ROI and age impact patients’ risk of chronic RAD.•For patients at high risk for RAD more intense prophylactic swallowing therapies may be warranted. W...

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Published in:Clinical and translational radiation oncology Vol. 18; pp. 16 - 22
Main Authors: Christopherson, Kaitlin M., Ghosh, Alokananda, Mohamed, Abdallah Sherif Radwan, Kamal, Mona, Gunn, G. Brandon, Dale, Timothy, Kalpathy-Cramer, Jayashree, Messer, Jay, Garden, Adam S., Elhalawani, Hesham, Frank, Steven J., Lewin, Jan, Morrison, William H., Phan, Jack, Gross, Neil, Ferrarotto, Renata, Weber, Randal S., Rosenthal, David I., Lai, Stephen Y., Hutcheson, Katherine, Fuller, Clifton David, Radwan Mohamed, Abdallah Sherif, Marai, G. Elisabeta (Liz), Canahuate, Guadalupe, Vock, David M., Fuller, David
Format: Journal Article
Language:English
Published: Ireland Elsevier B.V 01-09-2019
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Abstract •Age at treatment for OPSCC is a strong predictor of chronic radiation associated dysphagia (RAD).•For swallowing regions of interest (ROIs), dose to ROI and age impact patients’ risk of chronic RAD.•For patients at high risk for RAD more intense prophylactic swallowing therapies may be warranted. We sought to model chronic radiation-associated dysphagia (RAD) in patients given intensity-modulated radiation therapy (IMRT) for oropharyngeal squamous cell cancer (OPSCC) as a function of age and dose to non-target swallowing muscles. We reviewed 300 patients with T1-T4 N0-3 M0 OPSCC given definitive IMRT with concurrent chemotherapy. Chronic RAD was defined as aspiration or stricture on videoflouroscopy/endoscopy, gastrostomy tube, or aspiration pneumonia at ≥12 months after IMRT. Doses to autosegmented regions of interest (ROIs; inferior, middle and superior constrictors, anterior and posterior digastrics, mylo/geniohyoid complex, intrinsic tongue, and gengioglossus) were obtained from DICOM-RT plans and dose-volume histograms. The probability of chronic RAD as a function of mean ROI dose, stratified by age (<50, 50–59, 60–69, or ≥70 years), was estimated with logistic probability models and subsequent unsupervised nonlinear curves. Chronic RAD was observed in 34 patients (11%). Age was a significant correlate of chronic RAD, both independently and with dose for all muscle groups examined. Distinct muscle-specific dose–response profiles were observed as a function of age (e.g., 5% of patients in their 50 s [but 20% of those 70 + ] who received 60 Gy to the superior constrictor had chronic RAD). This effect was stable across all observed muscle ROIs, with a false discovery rate-corrected p < 0.05, for all dose/muscle/age models, suggesting that including age as a covariate improves modeling of chronic RAD. Age at treatment moderates the probability of chronic RAD after chemo-IMRT for OPSCC, with aging muscles showing lower dose thresholds. Uniform dose constraints may not predict toxicity in older patients.
AbstractList • Age at treatment for OPSCC is a strong predictor of chronic radiation associated dysphagia (RAD). • For swallowing regions of interest (ROIs), dose to ROI and age impact patients’ risk of chronic RAD. • For patients at high risk for RAD more intense prophylactic swallowing therapies may be warranted.
OBJECTIVESWe sought to model chronic radiation-associated dysphagia (RAD) in patients given intensity-modulated radiation therapy (IMRT) for oropharyngeal squamous cell cancer (OPSCC) as a function of age and dose to non-target swallowing muscles. METHODSWe reviewed 300 patients with T1-T4 N0-3 M0 OPSCC given definitive IMRT with concurrent chemotherapy. Chronic RAD was defined as aspiration or stricture on videoflouroscopy/endoscopy, gastrostomy tube, or aspiration pneumonia at ≥12 months after IMRT. Doses to autosegmented regions of interest (ROIs; inferior, middle and superior constrictors, anterior and posterior digastrics, mylo/geniohyoid complex, intrinsic tongue, and gengioglossus) were obtained from DICOM-RT plans and dose-volume histograms. The probability of chronic RAD as a function of mean ROI dose, stratified by age (<50, 50-59, 60-69, or ≥70 years), was estimated with logistic probability models and subsequent unsupervised nonlinear curves. RESULTSChronic RAD was observed in 34 patients (11%). Age was a significant correlate of chronic RAD, both independently and with dose for all muscle groups examined. Distinct muscle-specific dose-response profiles were observed as a function of age (e.g., 5% of patients in their 50 s [but 20% of those 70 + ] who received 60 Gy to the superior constrictor had chronic RAD). This effect was stable across all observed muscle ROIs, with a false discovery rate-corrected p < 0.05, for all dose/muscle/age models, suggesting that including age as a covariate improves modeling of chronic RAD. CONCLUSIONSAge at treatment moderates the probability of chronic RAD after chemo-IMRT for OPSCC, with aging muscles showing lower dose thresholds. Uniform dose constraints may not predict toxicity in older patients.
We sought to model chronic radiation-associated dysphagia (RAD) in patients given intensity-modulated radiation therapy (IMRT) for oropharyngeal squamous cell cancer (OPSCC) as a function of age and dose to non-target swallowing muscles. We reviewed 300 patients with T1-T4 N0-3 M0 OPSCC given definitive IMRT with concurrent chemotherapy. Chronic RAD was defined as aspiration or stricture on videoflouroscopy/endoscopy, gastrostomy tube, or aspiration pneumonia at ≥12 months after IMRT. Doses to autosegmented regions of interest (ROIs; inferior, middle and superior constrictors, anterior and posterior digastrics, mylo/geniohyoid complex, intrinsic tongue, and gengioglossus) were obtained from DICOM-RT plans and dose-volume histograms. The probability of chronic RAD as a function of mean ROI dose, stratified by age (<50, 50-59, 60-69, or ≥70 years), was estimated with logistic probability models and subsequent unsupervised nonlinear curves. Chronic RAD was observed in 34 patients (11%). Age was a significant correlate of chronic RAD, both independently and with dose for all muscle groups examined. Distinct muscle-specific dose-response profiles were observed as a function of age (e.g., 5% of patients in their 50 s [but 20% of those 70 + ] who received 60 Gy to the superior constrictor had chronic RAD). This effect was stable across all observed muscle ROIs, with a false discovery rate-corrected  < 0.05, for all dose/muscle/age models, suggesting that including age as a covariate improves modeling of chronic RAD. Age at treatment moderates the probability of chronic RAD after chemo-IMRT for OPSCC, with aging muscles showing lower dose thresholds. Uniform dose constraints may not predict toxicity in older patients.
Objectives: We sought to model chronic radiation-associated dysphagia (RAD) in patients given intensity-modulated radiation therapy (IMRT) for oropharyngeal squamous cell cancer (OPSCC) as a function of age and dose to non-target swallowing muscles. Methods: We reviewed 300 patients with T1-T4 N0-3 M0 OPSCC given definitive IMRT with concurrent chemotherapy. Chronic RAD was defined as aspiration or stricture on videoflouroscopy/endoscopy, gastrostomy tube, or aspiration pneumonia at ≥12 months after IMRT. Doses to autosegmented regions of interest (ROIs; inferior, middle and superior constrictors, anterior and posterior digastrics, mylo/geniohyoid complex, intrinsic tongue, and gengioglossus) were obtained from DICOM-RT plans and dose-volume histograms. The probability of chronic RAD as a function of mean ROI dose, stratified by age (<50, 50–59, 60–69, or ≥70 years), was estimated with logistic probability models and subsequent unsupervised nonlinear curves. Results: Chronic RAD was observed in 34 patients (11%). Age was a significant correlate of chronic RAD, both independently and with dose for all muscle groups examined. Distinct muscle-specific dose–response profiles were observed as a function of age (e.g., 5% of patients in their 50 s [but 20% of those 70 + ] who received 60 Gy to the superior constrictor had chronic RAD). This effect was stable across all observed muscle ROIs, with a false discovery rate-corrected p < 0.05, for all dose/muscle/age models, suggesting that including age as a covariate improves modeling of chronic RAD. Conclusions: Age at treatment moderates the probability of chronic RAD after chemo-IMRT for OPSCC, with aging muscles showing lower dose thresholds. Uniform dose constraints may not predict toxicity in older patients. Keywords: Oropharynx, IMRT, Radiation, Toxicity, Presbyphagia
•Age at treatment for OPSCC is a strong predictor of chronic radiation associated dysphagia (RAD).•For swallowing regions of interest (ROIs), dose to ROI and age impact patients’ risk of chronic RAD.•For patients at high risk for RAD more intense prophylactic swallowing therapies may be warranted. We sought to model chronic radiation-associated dysphagia (RAD) in patients given intensity-modulated radiation therapy (IMRT) for oropharyngeal squamous cell cancer (OPSCC) as a function of age and dose to non-target swallowing muscles. We reviewed 300 patients with T1-T4 N0-3 M0 OPSCC given definitive IMRT with concurrent chemotherapy. Chronic RAD was defined as aspiration or stricture on videoflouroscopy/endoscopy, gastrostomy tube, or aspiration pneumonia at ≥12 months after IMRT. Doses to autosegmented regions of interest (ROIs; inferior, middle and superior constrictors, anterior and posterior digastrics, mylo/geniohyoid complex, intrinsic tongue, and gengioglossus) were obtained from DICOM-RT plans and dose-volume histograms. The probability of chronic RAD as a function of mean ROI dose, stratified by age (<50, 50–59, 60–69, or ≥70 years), was estimated with logistic probability models and subsequent unsupervised nonlinear curves. Chronic RAD was observed in 34 patients (11%). Age was a significant correlate of chronic RAD, both independently and with dose for all muscle groups examined. Distinct muscle-specific dose–response profiles were observed as a function of age (e.g., 5% of patients in their 50 s [but 20% of those 70 + ] who received 60 Gy to the superior constrictor had chronic RAD). This effect was stable across all observed muscle ROIs, with a false discovery rate-corrected p < 0.05, for all dose/muscle/age models, suggesting that including age as a covariate improves modeling of chronic RAD. Age at treatment moderates the probability of chronic RAD after chemo-IMRT for OPSCC, with aging muscles showing lower dose thresholds. Uniform dose constraints may not predict toxicity in older patients.
Author Morrison, William H.
Dale, Timothy
Phan, Jack
Rosenthal, David I.
Kalpathy-Cramer, Jayashree
Christopherson, Kaitlin M.
Canahuate, Guadalupe
Gross, Neil
Hutcheson, Katherine
Fuller, Clifton David
Garden, Adam S.
Lewin, Jan
Weber, Randal S.
Elhalawani, Hesham
Radwan Mohamed, Abdallah Sherif
Gunn, G. Brandon
Lai, Stephen Y.
Fuller, David
Vock, David M.
Mohamed, Abdallah Sherif Radwan
Messer, Jay
Kamal, Mona
Ferrarotto, Renata
Ghosh, Alokananda
Frank, Steven J.
Marai, G. Elisabeta (Liz)
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BackLink https://www.ncbi.nlm.nih.gov/pubmed/31341972$$D View this record in MEDLINE/PubMed
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ContentType Journal Article
Contributor Dale, Timothy
Phan, Jack
Kalpathy-Cramer, Jayashree
Canahuate, Guadalupe
Gross, Neil
Hutcheson, Katherine
Gunn, G Brandon
Christopherson, Kaitlin M
Fuller, Clifton David
Lewin, Jan
Vock, David M
Lai, Stephen Y
Elhalawani, Hesham
Radwan Mohamed, Abdallah Sherif
Fuller, David
Mohamed, Abdallah Sherif Radwan
Messer, Jay
Marai, G Elisabeta Liz
Kamal, Mona
Ferrarotto, Renata
Weber, Randal S
Rosenthal, David I
Ghosh, Alokananda
Frank, Steven J
Morrison, William H
Garden, Adam S
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Keywords Presbyphagia
Oropharynx
IMRT
Toxicity
Radiation
Language English
License This is an open access article under the CC BY license.
This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
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Snippet •Age at treatment for OPSCC is a strong predictor of chronic radiation associated dysphagia (RAD).•For swallowing regions of interest (ROIs), dose to ROI and...
We sought to model chronic radiation-associated dysphagia (RAD) in patients given intensity-modulated radiation therapy (IMRT) for oropharyngeal squamous cell...
OBJECTIVESWe sought to model chronic radiation-associated dysphagia (RAD) in patients given intensity-modulated radiation therapy (IMRT) for oropharyngeal...
• Age at treatment for OPSCC is a strong predictor of chronic radiation associated dysphagia (RAD). • For swallowing regions of interest (ROIs), dose to ROI...
Objectives: We sought to model chronic radiation-associated dysphagia (RAD) in patients given intensity-modulated radiation therapy (IMRT) for oropharyngeal...
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SubjectTerms IMRT
Oropharynx
Presbyphagia
Radiation
Toxicity
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Title Chronic radiation-associated dysphagia in oropharyngeal cancer survivors: Towards age-adjusted dose constraints for deglutitive muscles
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