Efficacy of stents is improved when their placement is determined by arterial blood flow measurement

Reperfusion therapy in the form of percutaneous coronary intervention (PCI) is now the recommended first treatment for victims of acute myocardial infarction. New European guidelines issued in November 2008 emphasised speed of action and the importance of reperfusion therapy to restore blood flow to the heart and improve survival rates. The benefits of PCI are less clear in patients with stable coronary artery disease; PCI has been shown to improve symptoms, but the impact on prognosis is still a matter of debate.

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