BACKGROUND: @entity1207 ( @entity1207 ) is a common side reaction in radiotherapy for @entity418 . There are few reports about @entity1207 in @entity418 @entity1 receiving postoperative intensity modulated radiation therapy (IMRT) and volumetric modulated arc therapy (VMAT). This study aims to analyze clinical or dosimetric factors associated with @entity1207 , and provides data for radiotherapy planning. METHODS: We reviewed 68 postoperative @entity418 @entity1 who were treated with radiotherapy at the West China Hospital from October 2010 to November 2012 to identify any correlation between the clinical or dosimetric parameters and @entity6937 ( @entity6937 ) or @entity6937 ( @entity6937 ) by t-test, chi-square test, and logistic regression analysis. RESULTS: Of the 68 @entity1 , 33 @entity1 (48.5%) developed @entity6937 , 13 of which (19.1%) developed @entity6937 . Of these 33 @entity1 , 8 (11.8%), 12 (17.6%), 11 (16.2%), and 2 (2.9%) @entity1 were grade 1, 2, 3, and 4 @entity6937 , respectively. Univariate analysis showed that @entity358 during radiotherapy, use of VMAT, @entity358 ( @entity358 ), and dosimetric parameters (e.g. V20, V30) are significantly correlated with @entity1207 . Multivariate analysis found that @entity358 during radiotherapy, @entity358   >=    12   Gy, and V30   >=    13% are significantly correlated with an increased risk of @entity1207 . CONCLUSION: @entity358 during radiotherapy and low radiation dose volume distribution were predictive factors associated with @entity1207 and should be accounted for during radiation planning.

Predictive factors for @entity6937 in postoperative intensity modulated radiation therapy and volumetric modulated arc therapy of XXXX .

@entity1 :: ('9606', 'Species') :: ['patients'] @entity1207 :: ('MESH:D017564', 'Disease') :: ['Radiation pneumonitis', 'RP'] @entity358 :: ('MESH:D008171', 'Disease') :: ['Lung infection', 'lung infection', 'mean lung dose', 'MLD'] @entity418 :: ('MESH:D004938', 'Disease') :: ['esophageal cancer'] @entity6937 :: ('MESH:D054508', 'Disease') :: ['ARP', 'SARP', 'severe acute radiation pneumonitis', 'acute radiation pneumonitis']
@entity418 :: (MESH:D004938,Disease) :: ['esophageal cancer']
