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Updated: May 29, 2026

Voluntary Breath-hold Technique for Reducing Heart Dose in Left Breast Radiotherapy

Voluntary Breath-hold Technique for Reducing Heart Dose in Left Breast Radiotherapy

Published on: July 3, 2014

[Radiation-related heart toxicity].

A Mège¹, A Ziouèche, N Pourel

¹Radiothérapie, institut Sainte-Catherine, 1750, chemin du Lavarin, 84000 Avignon, France. a.mege@isc84.org

Cancer Radiotherapie : Journal De La Societe Francaise De Radiotherapie Oncologique

|September 3, 2011

Summary

This summary is machine-generated.

Radiotherapy for thoracic cancers can cause heart complications. Reducing heart radiation dose, ideally below 30 Gy, is crucial for preventing radiation-induced heart disease in cancer survivors.

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Last Updated: May 29, 2026

Voluntary Breath-hold Technique for Reducing Heart Dose in Left Breast Radiotherapy

Voluntary Breath-hold Technique for Reducing Heart Dose in Left Breast Radiotherapy

Published on: July 3, 2014

Area of Science:

Oncology
Cardiology
Radiation Oncology

Context:

Thoracic radiotherapy for cancers like Hodgkin lymphoma and breast cancer poses risks of late radiation-induced heart complications.
Radiation-induced coronaropathy is a primary cause of cardiac morbidity, with earlier studies estimating a relative risk of 2-3.
Cardiovascular risk factors, including chemotherapy, can exacerbate radiotherapy's cardiotoxicity.

Purpose:

To review the late radiation-induced cardiac complications following thoracic radiotherapy.
To highlight the impact of dose reduction and advanced techniques like conformational radiotherapy in mitigating cardiac toxicity.
To emphasize the ongoing need for further dose reduction and collaborative care between oncologists and cardiologists.

Summary:

Conformational radiotherapy has significantly reduced cardiac mortality by optimizing dose delivery to minimize heart exposure.
Cardiac toxicity is less significant when the heart receives less than 30 Gy.
Even small increases in mean heart dose (1 Gy) elevate cardiotoxic risk by 4%, underscoring the need for continued dose reduction.

Impact:

Prolonged cancer patient survival and the use of new cardiotoxic drugs necessitate ongoing efforts to minimize heart dose.
A collaborative approach between radiation oncologists and cardiologists is essential for detecting and managing long-term cardiac complications.
Further research and technological advancements are needed to further reduce the risk of radiation-induced heart disease.