A 60-year-old female patient with previous lymphoma has been referred to cardiology clinic with breathlessness. She has previously received mediastinal radiotherapy.
Which one of the following is unlikely to be a cardiac cause of her symptoms?
A. Constrictive pericarditisLeft-sided valve lesions are much more common than pulmonary or tricuspid valve involvement in post-radiotherapy patients. The reasons for this are unclear. Coronary Heart failure | answers 63 disease is a risk due to intimal proliferation and accelerated atherosclerosis, even in the absence of traditional risk factors. Sick sinus syndrome and even complete heart block due to fibrosis have been seen. Constrictive pericarditis is a long-term sequela of radiation therapy and presents with signs of right heart failure. The treatment is pericardectomy.