Left-sided breast cancer radiation raises risk of heart disease

Women receiving left-sided radiation therapy face more than twice the odds of coronary artery disease: study

Women with left-sided breast cancer who underwent radiation therapy had more than double the risk of developing coronary artery disease compared with women with right-sided cancer, a study shows.

US researchers analysed data from 972 women all aged under 55 when diagnosed with breast cancer between 1985 and 2008, none of whom had pre-existing heart disease. 

In the study 466 received right-sided radiation therapy and 506 received left-sided radiation therapy.

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