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Exercise-induced syncope as late consequence of radiotherapy
D E de Waard1, P M Verhorst, C A Visser
1Department of Cardiology, Free University Hospital, Amsterdam, The Netherlands.
International Journal of Cardiology
|December 13, 1996
Summary
A 34-year-old female experienced exercise-induced atrioventricular block due to radiation-induced right coronary artery stenosis. Treatment involved coronary artery surgery followed by a successful rotablator procedure for graft occlusion.
Area of Science:
- Cardiology
- Interventional Cardiology
- Radiation Oncology
Background:
- Radiation therapy can lead to delayed cardiovascular complications, including coronary artery stenosis.
- Exercise-induced atrioventricular block can be a symptom of underlying cardiac ischemia.
Observation:
- A 34-year-old female presented with exercise-induced atrioventricular block.
- The condition was attributed to transient ischemia caused by radiation-induced ostial stenosis of the right coronary artery.
Findings:
- Initial treatment included coronary artery bypass surgery using a right internal mammary artery graft.
- The patient experienced graft occlusion 18 months later, presenting with exercise-induced syncope.
- A successful rotablator procedure was performed to address the ostial stenosis.
Implications:
- This case highlights the importance of monitoring for delayed cardiac complications after radiation therapy.
- Rotablation can be an effective treatment for radiation-induced coronary artery stenosis and graft occlusion.
- Understanding the link between radiation, coronary stenosis, and cardiac arrhythmias is crucial for patient management.