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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/13204

Title: Changes in pulmonary function up to 10 years after locoregional breast irradiation
Authors: Erven, Katrien
Weltens, Caroline
Nackaerts, Kristiaan
Fieuws, Steffen
Decramer, Marc
Lievens, Yolande
Issue Date: 2012
Publisher: ELSEVIER SCIENCE INC
Citation: INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS, 82(2), p. 701-707
Abstract: Purpose: To evaluate the long-term impact of locoregional breast radiotherapy (RT) on pulmonary function tests., (PFTs). Methods and Materials: This study included 75 women who underwent postoperative locoregional breast RT PFTs were performed before RT and 3, 6, and 12 months and 8 to 10 years after RT. By use of univariate and multivariate analyses, the impact of treatment- and patient-related factors on late changes in PFTs was evaluated. Results: During the first year after RT, all PFTs significantly worsened at 3 to 6 months after RT (p < 0.05). At 12, months, forced vital capacity (FVC), vital capacity (VC), and forced expiratory volume in 1 second (FEV(1)) recovered almost to baseline values, whereas total lung capacity (TLC) and diffusion capacity of carbon monoxide (DL(CO)) recovered only slightly and were still found to be decreased compared with baseline (p < 0.05). At 8 to 10 years after RT, mean reductions in FEV(1) of 4% (p = 0.03) and in VC, DL(CO), and TLC of 5%, 9%, and 11% (all p < 0.0001), respectively, were observed compared with pre-RT values. On multivariate analysis, tamoxifen, use negatively affected TLC at 8 to 10 years after RT (p = 0.033), whereas right-sided irradiation was associated with a late reduction in FEV(1) (p = 0.027). For FEV(1) and DL(CO), an early decrease was predictive for a late decrease (p = 0.003 and p = 0.0009, respectively). Conclusions: The time course of PFT changes after locoregional RT for breast cancer follows a biphasic pattern. An early reduction in PFTs at 3 to 6 months with a partial recovery at 12 months after RT is followed by a late more important PFT reduction up to 8 to 10 years after RT. Tamoxifen use may have an impact on this late decline in PFTs. (C) 2012 Elsevier Inc.
Notes: [Erven, Katrien; Weltens, Caroline; Lievens, Yolande] Univ Hosp Gasthuisberg, Dept Radiotherapy, B-3000 Louvain, Belgium. [Nackaerts, Kristiaan; Decramer, Marc] Univ Hosp Gasthuisberg, Dept Pulmonol, B-3000 Louvain, Belgium. [Fieuws, Steffen] Katholieke Univ Leuven, Louvain, Belgium. [Fieuws, Steffen] Hasselt Univ, Louvain, Belgium.
URI: http://hdl.handle.net/1942/13204
DOI: 10.1016/j.ijrobp.2010.12.058
ISI #: 000299239900039
ISSN: 0360-3016
Category: A1
Type: Journal Contribution
Validation: ecoom, 2013
Appears in Collections: Research publications

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