Patients undergoing numerous repeated cardiac catheterizations for chronic ischaemic heart disease are at high risk for radiation injury, including chronic radiodermatitis.
Alerts clinicians to radiodermatitis risk after repeated PTCAs; hypothesis-generating for incidence and prevention strategies.
We review three patients who developed chronic radiodermatitis subsequent to undergoing multiple percutaneous transluminal coronary angioplasties (PTCAs). All patients had had chronic ischaemic heart disease (IHD) and had undergone lengthy PTCA on several occasions. The skin eruption was characterized by an atrophic rectangular plaque on the left upper back, presenting as mottled hyper- and hypopigmentation with reticulate telangiectasia. Histologically, the eruption demonstrated epidermal atrophy, hyalinized and irregularly stained collagen, and telangiectasia of superficial vessels in the dermis. Although the risk of radiation injury in most patients undergoing cardiac catheterization is low, this danger should not be ignored. In particular, patients with long-standing IHD and numerous repeated catheterizations to only one or two occluded coronary arteries should be considered at high risk.
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Kawakami et al. (1999) studied this question.
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