Coronary bypass without angiography: an unusual circumstance

This paper presents an unusual case of an individual with myocardial ischemia, angina pectoris, and myocardial infarction who also had an anaphylactic reaction to angiographic dye. The coronary bypass operation was guided by the use of intraoperative coronary reactive hyperemia assessed by Doppler ultrasound. The patient has had a good response to the operation without additional angina or difficulties.