New coronary devices increase the risk of perforation, especially in women and the elderly, requiring at least 24 hours of observation for delayed cardiac tamponade.
The incidence of perforation, while low, is increased with new devices. Women and the elderly are at highest risk. The clinical risk after perforation can be classified angiographically, but even low-risk perforations occasionally have poor clinical outcome. Patients should be observed for delayed cardiac tamponade for at least 24 hours.
Ellis et al. (Thu,) studied this question.