Key result
Pre-procedural TIMI III flow occurs in ~11% of STEMI patients undergoing primary PCI.
Why the study?
STEMI is classically characterized by total occlusion of the culprit artery, but TIMI 0 flow is not observed in all culprit arteries during primary PCI.
What is the frequency of pre-procedural TIMI III flow in patients undergoing primary PCI for acute STEMI?
Observational (n=8,018)
No
What is the frequency of pre-procedural TIMI III flow in patients undergoing primary PCI for acute STEMI?
p-value: p=<0.001
A significant proportion (11.4%) of patients presenting with acute STEMI have spontaneous TIMI III flow in the culprit artery prior to primary PCI, challenging the classic concept of total occlusion in all STEMI cases.
No takes yet. Share an insight, caveat, or question.
Spontaneous TIMI III flow occurs in a notable minority of STEMI; observational data challenge total occlusion assumptions yet leave practice implications open.
Hussain et al. (2020) conducted an observational in ST elevation myocardial infarction (STEMI) (n=8,018). Primary percutaneous coronary intervention was evaluated on Pre-procedural TIMI III flow (p=<0.001). Among patients with ST-elevation myocardial infarction undergoing primary PCI, 11.4% had pre-procedural TIMI III flow, indicating that not all culprit vessels are completely occluded.
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