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  • Title: [Role of coronary angiography in infarction without Q wave. Results of a prospective angiographic study].
    Author: Joly P, Geslin P, Raynaud P, Slama M.
    Journal: Arch Mal Coeur Vaiss; 1993 Dec; 86(12):1675-81. PubMed ID: 8024368.
    Abstract:
    Non-Q wave myocardial infarction is associated with a high recurrence rate of ischaemic events (angina and infarction). The artery responsible for the infarction is usually patent but stenosed and seems to be the cause of these complications. This prospective multicenter series of 66 patients treated by Heparin, Aspirin, Diltiazem and undergoing coronary angiography during the hospital period studied the artery responsible for the infarction and the value of coronary angiography in this setting. Several conclusions were drawn from the results: the precise diagnosis of the artery responsible for the infarct may be difficult (14%); the left circumflex artery or one of its branches is often implicated (47%); non-Q wave infarction is a various and heterogeneous group, including: infarctions located on small branch arteries, "warning" ischaemic episodes in the left anterior descending artery territory. definitive infarction of the left circumflex artery territory; nevertheless, this group is an intermediate state between Q wave infarction and unstable angina (low occlusion rate 26% and angiographic lesional appearances similar to those of unstable angina); early coronary angiography (48-72 h) seems to be useful to improve prevention of ischaemic recurrences by adequate revascularisation.
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