A clinical study of the influential factors of dynamic electrocardiogram changes after intensity modulated radiation therapy for the lung cancer and breast cancer

VernacularTitle:肺癌和乳腺癌调强放疗致动态心电图改变的相关因素分析
Author: Xiaobo QIN ; Qin ZHANG ; Suping YANG ; Xiaojie CHEN ; Jie WU
Publication Type:Journal Article
Keywords: thoracic neoplasms; intensity modulated radiation therapy; dynamic electrocardiogram; dose volume histogram
From: Chongqing Medicine 2014;(15):1840-1842,1845
CountryChina
Language:Chinese
Abstract: Objective To study of the influential factors of dynamic electrocardiogram (DCG)changes after intensity modulated radiation therapy(IMRT) for the lung cancer and breast cancer .Methods IMRT was delivered to 43 patients with lung cancer and 39 patients with breast cancer ,and they were installed DCG before and after the therapy .The associations of clinical and DVH fac‐tors with DCG changed after IMRT were analyzed .Results 32 patients have abnormal DCG after IMRT (39% ) ,the clinical data and physical factors were analyzed by Logistic regression ,gender(OR=1 .52 ,P<0 .05) and heart V40 >22% (OR=1 .15 ,P<0 .05) were the independent influencing factors for abnormal DCG .Conclusion The rate of abnormal DCG is low after IMRT for the lung cancer and breast cancer ,and gender and heart V40 were the independent influencing factors for abnormal DCG .