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Updated: Apr 7, 2026
11:38
Voluntary Breath-hold Technique for Reducing Heart Dose in Left Breast Radiotherapy
Published on: July 3, 2014
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Cardiac Side-effects From Breast Cancer Radiotherapy
1Clinical Trial Service Unit, Richard Doll Building, Oxford, UK.
Clinical Oncology (Royal College of Radiologists (Great Britain))
|July 3, 2015
Summary
Radiotherapy for breast cancer can increase heart disease risk. Oncologists estimate individual risks based on cardiac radiation dose and patient history to balance treatment benefits against potential harm.
Area of Science:
- Oncology
- Radiotherapy
- Cardiology
Background:
- Breast cancer radiotherapy significantly reduces recurrence and mortality.
- Radiotherapy can lead to radiation exposure of the heart, increasing the risk of heart disease.
- Individualized risk assessment is crucial for balancing treatment benefits and cardiac risks.
Purpose of the Study:
- To estimate the absolute risks of radiation-related heart disease in breast cancer patients.
- To inform oncologists in planning personalized radiotherapy treatments.
- To compare the absolute benefit of radiotherapy with the estimated cardiac risks.
Main Methods:
- Review of randomized trials to analyze heart disease risks.
- Estimation of individual cardiac radiation doses.
- Assessment of patients' background risk of ischemic heart disease.
- Evaluation of technical approaches to minimize heart dose.
Main Results:
- Many UK centers currently achieve mean heart doses below 3 Gy.
- For most women, radiotherapy benefits likely outweigh cardiac risks.
- Technical strategies like breath-holding and proton therapy are employed to reduce heart dose.
Conclusions:
- Personalized risk-benefit analysis is essential for breast cancer radiotherapy.
- Minimizing cardiac radiation dose is a key focus in treatment planning.
- Advanced techniques are being developed to further reduce heart exposure during radiotherapy.
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