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Quality of life after parotid-sparing IMRT for head-and-neck cancer: a prospective longitudinal study.
Int J Radiat Oncol Biol Phys. 2003 Sep 01; 57(1):61-70.IJ

Abstract

PURPOSE

Parotid-sparing intensity-modulated radiotherapy (IMRT) for head-and-neck cancer reduces xerostomia compared with standard RT. To assess potential improvements in broader aspects of quality of life (QOL), we initiated a study of patient-reported QOL and its predictors after IMRT.

MATERIALS AND METHODS

This was a prospective longitudinal study of head-and-neck cancer patients receiving multisegmental static IMRT. Patients were given a validated xerostomia questionnaire (XQ), and a validated head-and-neck cancer-related QOL questionnaire consisting of four multi-item domains: Eating, Communication, Pain, and Emotion. The Eating domain contains one question (total of six) asking directly about xerostomia. In both questionnaires, higher scores denote worse symptoms or QOL. The questionnaires and measurements of salivary output from the major glands were completed before RT started (pre-RT) and at 3, 6, and 12 months after RT. The association between the QOL scores and patient-, tumor-, and therapy-related factors was assessed using the random effects model.

RESULTS

Thirty-six patients participating in the study completed the questionnaires through 12 months. The XQ scores worsened significantly at 3 months compared with the pre-RT scores, but later they improved gradually through 12 months (p = 0.003), in parallel with an increase in the salivary output from the spared salivary glands. The QOL summary scores were stable between the baseline (pre-RT) and 3 months after RT scores. Patients receiving postoperative RT (whose pre-RT questionnaires were taken a few weeks after surgery) tended to have improved scores after RT, reflecting the subsidence of acute postoperative sequelae, compared with a tendency toward worsened scores in patients receiving definitive RT. After 3 months, statistically significant improvement was noted in the summary QOL scores for all patients, through 12 months after RT (p = 0.01). The salivary flow rates, tumor doses, mean oral cavity dose, age, gender, sites or stages of tumor, surgery, and use of chemotherapy were not associated with the QOL scores at any point. The mean dose to the parotid glands correlated with the QOL scores at 3 months (p = 0.05) but not at other post-RT periods. The XQ and QOL summary scores did not correlate before RT but were significantly correlated at each post-RT point (p < 0.01), with a linear correlation coefficient (r) of 0.59, 0.72, and 0.67 at 3, 6, and 12 months, respectively. At these points, the XQ scores also correlated significantly with the scores of each of the individual QOL domains (p < or = 0.01), including the domains Pain and Emotion, which did not contain any xerostomia-related question.

CONCLUSION

After parotid-sparing IMRT, a statistically significant correlation was noted between patient-reported xerostomia and each of the domains of QOL: Eating, Communication, Pain, and Emotion. Both xerostomia and QOL scores improved significantly over time during the first year after therapy. These results suggest that the efforts to improve xerostomia using IMRT may yield improvements in broad aspects of QOL.

Authors+Show Affiliations

Department of Radiation Oncology, Hospital of the University of Michigan, Ann Arbor, MI 48109-0010, USA.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Journal Article
Research Support, U.S. Gov't, P.H.S.

Language

eng

PubMed ID

12909216

Citation

Lin, Alexander, et al. "Quality of Life After Parotid-sparing IMRT for Head-and-neck Cancer: a Prospective Longitudinal Study." International Journal of Radiation Oncology, Biology, Physics, vol. 57, no. 1, 2003, pp. 61-70.
Lin A, Kim HM, Terrell JE, et al. Quality of life after parotid-sparing IMRT for head-and-neck cancer: a prospective longitudinal study. Int J Radiat Oncol Biol Phys. 2003;57(1):61-70.
Lin, A., Kim, H. M., Terrell, J. E., Dawson, L. A., Ship, J. A., & Eisbruch, A. (2003). Quality of life after parotid-sparing IMRT for head-and-neck cancer: a prospective longitudinal study. International Journal of Radiation Oncology, Biology, Physics, 57(1), 61-70.
Lin A, et al. Quality of Life After Parotid-sparing IMRT for Head-and-neck Cancer: a Prospective Longitudinal Study. Int J Radiat Oncol Biol Phys. 2003 Sep 1;57(1):61-70. PubMed PMID: 12909216.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Quality of life after parotid-sparing IMRT for head-and-neck cancer: a prospective longitudinal study. AU - Lin,Alexander, AU - Kim,Hyungjin M, AU - Terrell,Jeffrey E, AU - Dawson,Laura A, AU - Ship,Jonathan A, AU - Eisbruch,Avraham, PY - 2003/8/12/pubmed PY - 2003/10/9/medline PY - 2003/8/12/entrez SP - 61 EP - 70 JF - International journal of radiation oncology, biology, physics JO - Int J Radiat Oncol Biol Phys VL - 57 IS - 1 N2 - PURPOSE: Parotid-sparing intensity-modulated radiotherapy (IMRT) for head-and-neck cancer reduces xerostomia compared with standard RT. To assess potential improvements in broader aspects of quality of life (QOL), we initiated a study of patient-reported QOL and its predictors after IMRT. MATERIALS AND METHODS: This was a prospective longitudinal study of head-and-neck cancer patients receiving multisegmental static IMRT. Patients were given a validated xerostomia questionnaire (XQ), and a validated head-and-neck cancer-related QOL questionnaire consisting of four multi-item domains: Eating, Communication, Pain, and Emotion. The Eating domain contains one question (total of six) asking directly about xerostomia. In both questionnaires, higher scores denote worse symptoms or QOL. The questionnaires and measurements of salivary output from the major glands were completed before RT started (pre-RT) and at 3, 6, and 12 months after RT. The association between the QOL scores and patient-, tumor-, and therapy-related factors was assessed using the random effects model. RESULTS: Thirty-six patients participating in the study completed the questionnaires through 12 months. The XQ scores worsened significantly at 3 months compared with the pre-RT scores, but later they improved gradually through 12 months (p = 0.003), in parallel with an increase in the salivary output from the spared salivary glands. The QOL summary scores were stable between the baseline (pre-RT) and 3 months after RT scores. Patients receiving postoperative RT (whose pre-RT questionnaires were taken a few weeks after surgery) tended to have improved scores after RT, reflecting the subsidence of acute postoperative sequelae, compared with a tendency toward worsened scores in patients receiving definitive RT. After 3 months, statistically significant improvement was noted in the summary QOL scores for all patients, through 12 months after RT (p = 0.01). The salivary flow rates, tumor doses, mean oral cavity dose, age, gender, sites or stages of tumor, surgery, and use of chemotherapy were not associated with the QOL scores at any point. The mean dose to the parotid glands correlated with the QOL scores at 3 months (p = 0.05) but not at other post-RT periods. The XQ and QOL summary scores did not correlate before RT but were significantly correlated at each post-RT point (p < 0.01), with a linear correlation coefficient (r) of 0.59, 0.72, and 0.67 at 3, 6, and 12 months, respectively. At these points, the XQ scores also correlated significantly with the scores of each of the individual QOL domains (p < or = 0.01), including the domains Pain and Emotion, which did not contain any xerostomia-related question. CONCLUSION: After parotid-sparing IMRT, a statistically significant correlation was noted between patient-reported xerostomia and each of the domains of QOL: Eating, Communication, Pain, and Emotion. Both xerostomia and QOL scores improved significantly over time during the first year after therapy. These results suggest that the efforts to improve xerostomia using IMRT may yield improvements in broad aspects of QOL. SN - 0360-3016 UR - https://www.unboundmedicine.com/medline/citation/12909216/Quality_of_life_after_parotid_sparing_IMRT_for_head_and_neck_cancer:_a_prospective_longitudinal_study_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0360301603003614 DB - PRIME DP - Unbound Medicine ER -