Tonic Doctor: The Link Between Breast Cancer And Heart Disease
My sister and I both had breast cancer in our early 40s – around 15 years ago. Her doctor has recently detected some heart issues and suggested they may be linked to the chemotherapy she had. I’ve never heard of this before. Am I also at risk?
Your sister’s doctor is correct. Some, but not all, chemotherapy drugs can cause damage to the heart, most commonly anthracycline chemotherapy, which is typically used to treat early-stage breast cancer. Other cancer treatments, such as trastuzumab and radiation treatment, can also be potentially harmful.
Heart disease is the leading cause of non-cancer death in survivors of breast cancer. In fact, heart disease is the number one killer of all women. If you combine previous cancer treatment with common cardiovascular risk factors such as high blood pressure or being overweight, the risk of heart-related problems is even greater.
Heart issues can occur at any time: sometimes during treatment but more commonly five to 10 years later. There are many indicators of heart problems. If you have chest pain, seek urgent medical help. Other signs to look out for, whether you’ve been treated for breast cancer or not, include shortness of breath while doing normal daily activities, fatigue, weakness, a feeling that your heart is racing and swelling in your legs. If you’re concerned it’s best to speak to your doctor.
Fortunately, we can address many of these risk factors. Maintaining a balanced diet and taking regular exercise is a good place to start reducing the risk of future heart problems. For further advice speak to your doctor or an exercise specialist such as an accredited exercise physiologist.
Answer by Dr Erin Howden, Baker Heart and Diabetes Institute
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