Why the study?
Does emergency PTCA improve survival in patients with acute occlusion of the left main coronary artery?
Does emergency PTCA improve survival in patients with acute occlusion of the left main coronary artery?
In patients with acute left main coronary artery occlusion, survival after emergency PTCA is strongly dependent on the presence of intercoronary collaterals.
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Survival after emergency PTCA for acute left main occlusion may hinge on collaterals; leaves open whether PTCA improves survival without them.
Spiecker et al. (1994) studied this question.
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