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Can breast cancer radiotherapy cause heart issues in women?

This Premium Q&A, reviewed and published, features a real conversation between an iCliniq user and a physician.

Patient's Query

Hello doctor,

My friend's mother has breast cancer, and she is going through radiation therapy. She is worried about heart arrhythmia because the doctor said it could happen. She also has lumps in her breasts.

  1. They said something about artificial intelligence being used in oncology now, but what does it mean?
  2. She is anxious all the time and feels like the doctors are not telling her everything. How is breast cancer related to heart problems?
  3. We need to know if this is common or not. Her mother is old, and we do not want anything else to happen to her. Can radiation make her heart worse?
  4. Why would AI be involved in her treatment?

Thank you.

Answered by Dr. Sugandh Garg

Education:

MBBS

Professional Bio:

Dr. Sugandh Garg is a qualified medical professional with an MBBS degree and an MD in Forensic Medicine, with significant experience as a COVID-19 expert. Since March 2020, he has been actively working with the government civil hospital COVID team, managing emergency cases and overseeing quarantine and isolation protocols. He has played a key role in supporting COVID-19 patients through structured treatment guidance and diet protocols, contributing to effective patient care during the pandemic.

This doctor is not available for online consultations on the platform anymore.

Hello,

Welcome to icliniq.com

I read your query and can understand your concern.

Radiation therapy is a common and effective treatment for breast cancer, but when the left breast is involved, there is a potential risk to the heart because of its proximity. Radiation can lead to damage to the heart tissues, which may increase the risk of heart problems, including arrhythmias, coronary artery disease, or even heart failure. These risks are higher in older patients or those with pre-existing heart conditions.

Modern radiation techniques like deep inspiration breath hold (DIBH) and intensity-modulated radiation therapy (IMRT) are often used to minimize radiation exposure to the heart, thus reducing the risk of heart-related side effects.

In the context of breast cancer, AI (artificial intelligence) can assist in creating highly personalized treatment plans by analyzing vast amounts of data from previous cases and current imaging studies. This helps ensure that radiation is delivered more precisely, targeting the cancerous tissue while sparing healthy tissues, including the heart. AI algorithms can predict side effects, such as heart problems.

AI can also aid in the early detection of cancers and in distinguishing between benign and malignant lumps, reducing the need for invasive biopsies.

Encourage her to ask questions about her treatment, potential side effects, and any concerns she may have.

Anxiety is common in cancer patients, but support from family, counseling, and possibly medication can help manage it. Regular follow-ups are essential.

I hope I have answered your question.

Let me know if I can assist you further.

Regards.

Medically reviewed by iCliniq medical review team
Published At October 6, 2024
Reviewed At November 24, 2025

Education:

MBBS

Professional Bio:

Dr. Sugandh Garg is a qualified medical professional with an MBBS degree and an MD in Forensic Medicine, with significant experience as a COVID-19 expert. Since March 2020, he has been actively working with the government civil hospital COVID team, managing emergency cases and overseeing quarantine and isolation protocols. He has played a key role in supporting COVID-19 patients through structured treatment guidance and diet protocols, contributing to effective patient care during the pandemic.

This doctor is not available for online consultations on the platform anymore.

Same symptoms don't mean you have the same problem. Consult a doctor now!

Education:

MBBS

Professional Bio:

Dr. Sugandh Garg is a qualified medical professional with an MBBS degree and an MD in Forensic Medicine, with significant experience as a COVID-19 expert. Since March 2020, he has been actively working with the government civil hospital COVID team, managing emergency cases and overseeing quarantine and isolation protocols. He has played a key role in supporting COVID-19 patients through structured treatment guidance and diet protocols, contributing to effective patient care during the pandemic.

This doctor is not available for online consultations on the platform anymore.

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