Dyspnea in Patients Receiving Radical Radiotherapy for Non-Small Cell Lung Cancer: A Prospective Study



Sardaro, Angela, McDonald, Fiona, Bardoscia, Lilia, Lavrenkov, Konstantin, Singh, Shalini, Ashley, Sue, Traish, Daphne, Ferrari, Cristina, Meattini, Icro, Asabella, Artor Niccoli
et al (show 1 more authors) (2020) Dyspnea in Patients Receiving Radical Radiotherapy for Non-Small Cell Lung Cancer: A Prospective Study. FRONTIERS IN ONCOLOGY, 10. 594590-.

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Abstract

<h4>Background and purpose</h4>Dyspnea is an important symptomatic endpoint for assessment of radiation-induced lung injury (RILI) following radical radiotherapy in locally advanced disease, which remains the mainstay of treatment at the time of significant advances in therapy including combination treatments with immunotherapy and chemotherapy and the use of local ablative radiotherapy techniques. We investigated the relationship between dose-volume parameters and subjective changes in dyspnea as a measure of RILI and the relationship to spirometry.<h4>Material and methods</h4>Eighty patients receiving radical radiotherapy for non-small cell lung cancer were prospectively assessed for dyspnea using two patient-completed tools: EORTC QLQ-LC13 dyspnea quality of life assessment and dyspnea visual analogue scale (VAS). Global quality of life, spirometry and radiation pneumonitis grade were also assessed. Comparisons were made with lung dose-volume parameters.<h4>Results</h4>The median survival of the cohort was 26 months. In the evaluable group of 59 patients there were positive correlations between lung dose-volume parameters and a change in dyspnea quality of life scale at 3 months (V<sub>30</sub> p=0.017; V<sub>40</sub> p=0.026; V<sub>50</sub> p=0.049; mean lung dose p=0.05), and a change in dyspnea VAS at 6 months (V<sub>30</sub> p=0.05; V<sub>40</sub> p=0.026; V<sub>50</sub> p=0.028) after radiotherapy. Lung dose-volume parameters predicted a 10% increase in dyspnea quality of life score at 3 months (V<sub>40</sub>; p=0.041, V<sub>50</sub>; p=0.037) and dyspnea VAS score at 6 months (V<sub>40</sub>; p=0.027) post-treatment.<h4>Conclusions</h4>Worsening of dyspnea is an important symptom of RILI. We demonstrate a relationship between lung dose-volume parameters and a 10% worsening of subjective dyspnea scores. Our findings support the use of subjective dyspnea tools in future studies on radiation-induced lung toxicity, particularly at doses below conventional lung radiation tolerance limits.

Item Type: Article
Uncontrolled Keywords: non-small cell lung cancer, radiotherapy, dyspnea, dose-volume parameters, radiation-induced lung injury
Divisions: Faculty of Health and Life Sciences
Faculty of Health and Life Sciences > Clinical Directorate
Depositing User: Symplectic Admin
Date Deposited: 04 May 2022 08:29
Last Modified: 18 Jan 2023 23:03
DOI: 10.3389/fonc.2020.594590
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3113741