Annals of Thoracic Medicine
ORIGINAL ARTICLE
Year
: 2017  |  Volume : 12  |  Issue : 4  |  Page : 252--258

Analysis of predictive parameters for the development of radiation-induced pneumonitis


Toru Yamagishi, Norio Kodaka, Yoshiyuki Kurose, Kayo Watanabe, Chihiro Nakano, Kumiko Kishimoto, Takeshi Oshio, Kumiko Niitsuma, Hiroto Matsuse 
 Department of Internal Medicine, Division of Respiratory Medicine, Toho University Ohashi Medical Center, Tokyo, Japan

Correspondence Address:
Hiroto Matsuse
Department of Internal Medicine, Division of Respiratory Medicine, Toho University Ohashi Medical Center, 2-17-6 Ohashi, Meguro-ku, Tokyo 153-8515
Japan

Introduction: Prevention and effective treatment of radiation-induced pneumonitis (RP) could facilitate greater use of radiation therapy (RT) for lung cancer. The purpose of this study was to determine clinical parameters useful for early prediction of RP. Methods: Blood sampling, pulmonary function testing, chest computed tomography, and bronchoalveolar lavage (BAL) were performed in patients with pathologically confirmed lung cancer who had completed ≥60 Gy of RT, at baseline, shortly after RT, and at 1 month posttreatment. Results: By 3 months post-RT, 11 patients developed RP (RP group) and the remaining 11 patients did not (NRP group). RT significantly increased total cell counts and alveolar macrophages in BAL of the NRP group, whereas lymphocyte count was increased in both groups. Matrix metallopeptidase-9 (MMP-9) increased and vascular endothelial growth factor decreased significantly in the BAL fluid (BALF) of the RP group following RT. Serum surfactant protein D (SP-D) increased significantly in the NRP group. SP-D in BALF from the RP group increased significantly with a subsequent increase in serum SP-D. Pulmonary dilution decreased similarly in both groups of patients. Conclusions: Increased SP-D in BALF, rather than that in serum, could be useful biomarkers in predicting RP. The MMP-9 in BALF might play a role in the pathogenesis of RP. Pulmonary dilution test may not be predictive of the development of RP.


How to cite this article:
Yamagishi T, Kodaka N, Kurose Y, Watanabe K, Nakano C, Kishimoto K, Oshio T, Niitsuma K, Matsuse H. Analysis of predictive parameters for the development of radiation-induced pneumonitis.Ann Thorac Med 2017;12:252-258


How to cite this URL:
Yamagishi T, Kodaka N, Kurose Y, Watanabe K, Nakano C, Kishimoto K, Oshio T, Niitsuma K, Matsuse H. Analysis of predictive parameters for the development of radiation-induced pneumonitis. Ann Thorac Med [serial online] 2017 [cited 2020 Sep 20 ];12:252-258
Available from: http://www.thoracicmedicine.org/article.asp?issn=1817-1737;year=2017;volume=12;issue=4;spage=252;epage=258;aulast=Yamagishi;type=0