When cancer treatment affects the heart

Side effects from both older and newer cancer therapies can affect the heart and blood vessels, possibly causing serious, sometimes life-threatening complications. People diagnosed with any type of cancer should ask their doctor whether their planned treatment might lead to cardiovascular problems. Those ages 65 and older and anyone with risk factors for heart disease (such as high blood pressure or diabetes) may want to request a referral to a cardio-oncologist. These specialists focus on preventing and managing cardiovascular problems in people who are undergoing (or have completed) treatment for cancer.