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Radiation therapy-induced cardiac injury
1Department of Medicine, Beth Israel Medical Center, New York, NY 10003, USA.
American Heart Journal
|June 1, 1995
Summary
Radiation therapy can cause heart disease, but new techniques minimize cardiac exposure. Survivors may develop radiation-induced heart conditions, including pericardial and coronary artery disease, years after treatment.
Area of Science:
- Oncology
- Cardiology
- Radiology
Background:
- Radiation therapy is a standard treatment for various cancers, such as Hodgkin's disease.
- Modern radiation techniques aim to reduce cardiac dose, thereby minimizing the risk of heart disease.
- Despite advancements, a subset of patients may still experience iatrogenic cardiac effects.
Purpose of the Study:
- To review the incidence and types of radiation-induced heart disease.
- To discuss the long-term implications of cardiac exposure during radiation therapy.
- To highlight the increasing frequency of late-onset cardiac effects in cancer survivors.
Main Methods:
- Literature review of studies on radiation therapy and cardiac complications.
- Analysis of reported cases of radiation-induced heart disease.
- Discussion of evolving radiation techniques and their impact on cardiac safety.
Main Results:
- Pericardial disease is the most common radiation-induced heart condition.
- Valvular disease, conduction abnormalities, and coronary artery disease are also observed.
- Longer survival rates reveal an increasing incidence of late-developing cardiac issues.
Conclusions:
- While radiation techniques have improved cardiac protection, iatrogenic heart disease remains a concern.
- The spectrum of radiation-induced heart disease includes pericardial, valvular, conduction, and coronary issues.
- Increased patient survival necessitates vigilance for long-latency cardiac complications following radiation therapy.