If you have a history of heart disease, high blood pressure or type 2 diabetes, your cancer doctor will need to know about these before you start your cancer treatment. If you have a history of heart disease, your cancer doctor will need to know the type of heart problem, what treatments you’ve had for it or are having, and how stable your heart condition is. They may speak to your GP or cardiologist if you have one. They’ll also arrange for you to have some tests to check your heart function before any treatment is given.
Not all cancer treatments are suitable for people with existing heart problems, as they could make the heart problem worse. Your cancer doctor will let you know if a particular treatment is suitable for you. If it isn’t, they may plan a different treatment for you.
If you have an existing heart problem, your doctor will also make sure that it is being treated effectively before you start your cancer treatment. For example, if you have high blood pressure, you will need to see your GP so that you get treatment to control it.