Key result
Postinterventional fractional flow reserve was significantly higher in patients with acute myocardial infarction than in those with stable angina pectoris (0.95 vs. 0.90; P=0.002).
Why the study?
Does microvascular dysfunction in acute myocardial infarction affect the reliability of fractional flow reserve (FFR) after percutaneous coronary intervention?
Observational (n=48)
Does microvascular dysfunction in acute myocardial infarction affect the reliability of fractional flow reserve (FFR) after percutaneous coronary intervention?
Absolute Event Rate: 0.95% vs 0.9%
p-value: p=0.002
In patients with marked microvascular dysfunction, such as AMI with TIMI 2 flow, FFR may underestimate coronary lesion severity and be unreliable for assessment.
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FFR may overestimate lesion significance post-AMI; challenges routine interpretation and extends microvascular dysfunction evidence.
Tamita et al. (2002) conducted an observational in Acute myocardial infarction and stable angina pectoris (n=48). Acute myocardial infarction vs. Stable angina pectoris was evaluated on Postinterventional fractional flow reserve (FFR) (p=0.002). Postinterventional fractional flow reserve was significantly higher in patients with acute myocardial infarction than in those with stable angina pectoris (0.95 vs. 0.90; P=0.002).
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