Why the study?
It remains unclear how fractional flow reserve (FFR)-guided PCI affects hard clinical endpoints in STEMI patients with multivessel disease.
Does FFR-guided complete revascularization of non-culprit lesions reduce the combined endpoint of total mortality, non-fatal MI, and unplanned revascularization in STEMI patients with multivessel disease?
Population
1,545 STEMI patients with multivessel disease
Comparison
FFR-guided PCI of non-culprit lesions during index hospitalization vs initial conservative management
Design
Pragmatic, multicenter, international, registry-based randomized clinical trial
Follow-up
Estimated at least 2.75 years (event driven)
Key result
In STEMI patients with multivessel disease, FFR re-classified 20% of angiographically severe (90-99%) and 50% of intermediate (70-89%) non-culprit lesions as non-flow limiting.
Authors
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FFR-guided PCI in STEMI multivessel disease needs prospective validation; registry data leave open effects on hard endpoints.
RCT (n=1,545)
randomized
Yes
Does FFR-guided complete revascularization of non-culprit lesions reduce the combined endpoint of total mortality, non-fatal MI, and unplanned revascularization in STEMI patients with multivessel disease?
A significant proportion of angiographically severe and intermediate non-culprit lesions in STEMI patients are non-flow limiting by FFR, highlighting the potential value of FFR guidance for complete revascularization.
Böhm et al. (2021) conducted an RCT in ST elevation myocardial infarction (STEMI) with multivessel disease (n=1,545). FFR-guided PCI of non-culprit lesions vs. initial conservative management of non-culprit lesions was evaluated on total mortality, non-fatal MI and unplanned revascularization. In STEMI patients with multivessel disease, FFR re-classified 20% of angiographically severe (90-99%) and 50% of intermediate (70-89%) non-culprit lesions as non-flow limiting.