Cardiovascular Complications Associated with Mediastinal Radiation

Area of Science:

• Cardiology
• Oncology
• Radiology

Background:

• Radiation-induced heart disease (RIHD) is a major cause of morbidity and mortality in cancer survivors.
• Mediastinal radiation therapy significantly increases long-term cardiovascular risks.

Purpose of the Study:

• To review current knowledge on the presentation, diagnosis, and management of RIHD.
• To highlight the importance of active surveillance and early detection strategies for RIHD.

Main Methods:

• Review of decades' worth of cohort data.
• Discussion of multimodality imaging techniques (e.g., echocardiography) for assessment.
• Exploration of sensitive imaging parameters and biomarkers for subclinical RIHD detection.

Main Results:

• RIHD risk increases with age in cancer survivors.
• Multimodality imaging complements echocardiography in screening and surveillance.
• Sensitive imaging and biomarkers show potential for detecting subclinical RIHD.

Conclusions:

• Patients and clinicians must recognize the lifelong cardiovascular risks of mediastinal radiation.
• RIHD surveillance should be integrated throughout cancer survivorship.
• Ongoing studies are evaluating contemporary radiation strategies and novel detection metrics.