Key result
Techniques such as deep inspiration breath hold, prone positioning for pendulous breasts, and accelerated partial breast irradiation can significantly reduce cardiac radiation doses compared to standard supine 3DCRT in women with left-sided breast cancer.
Why the study?
Do advanced radiation techniques reduce cardiac irradiation in women with left-sided breast cancer treated with breast-conserving surgery?
Do advanced radiation techniques reduce cardiac irradiation in women with left-sided breast cancer treated with breast-conserving surgery?
Advanced radiation techniques such as deep inspiration breath hold and accelerated partial breast irradiation can significantly reduce cardiac radiation exposure in women with left-sided breast cancer, potentially lowering the risk of radiation-induced cardiotoxicity.
May support cardiac-sparing techniques in left-sided breast radiotherapy; leaves open randomized confirmation of clinical outcomes.
Thousands of women diagnosed with breast cancer each year receive breast-conserving surgery followed by adjuvant radiation therapy. For women with left-sided breast cancer, there is risk of potential cardiotoxicity from the radiation therapy. As data have become available to quantify the risk of cardiotoxicity from radiation, strategies have also developed to reduce the dose of radiation to the heart without compromising radiation dose to the breast. Several broad categories of techniques to reduce cardiac radiation doses include breath hold techniques, prone positioning, intensity-modulated radiation therapy, and accelerated partial breast irradiation, as well as many small techniques to improve traditional three-dimensional conformal radiation therapy. This review summarizes the published scientific literature on the various techniques to decrease cardiac irradiation in women treated to the left breast for breast cancer after breast-conserving surgery.
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Beck et al. (2014) conducted a review in Left-sided breast cancer. Techniques to reduce cardiac irradiation (breath hold, prone positioning, IMRT, APBI) vs. Standard supine 3DCRT was evaluated. Techniques such as deep inspiration breath hold, prone positioning for pendulous breasts, and accelerated partial breast irradiation can significantly reduce cardiac radiation doses compared to standard supine 3DCRT in women with left-sided breast cancer.
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