Culprit Lesion Coronary Intervention Before Complete Angiography in ST-Elevation Myocardial Infarction: A Randomized...

Area of Science:

• Cardiology
• Interventional Cardiology
• Acute Coronary Syndromes

Background:

• Rapid reperfusion in ST-elevation myocardial infarction (STEMI) is crucial for improved patient outcomes.
• While pre-hospital and diagnostic delays are studied, intraprocedural strategies to shorten reperfusion times are less explored.

Purpose of the Study:

• To compare the effectiveness of culprit lesion percutaneous coronary intervention (PCI) performed before complete diagnostic coronary angiography (CAG) versus the traditional approach of complete CAG followed by culprit lesion PCI.
• To evaluate the impact of procedural sequencing on reperfusion times in STEMI patients.

Main Methods:

• An open-label, prospective, randomized clinical trial involving 216 STEMI patients undergoing primary PCI.
• Patients were randomized 1:1 to either undergo culprit lesion PCI first or complete CAG first.
• The primary outcome measure was the "needle-to-balloon" time, aiming for 10 minutes or less.

Main Results:

• The group undergoing culprit lesion PCI before CAG achieved significantly shorter mean "needle-to-balloon" times (11.4 minutes) compared to the group undergoing CAG first (17.3 minutes).
• A "needle-to-balloon" time of 10 minutes or less was achieved by 51.1% of patients in the PCI-first group versus 19.1% in the CAG-first group (OR, 4.4; P < .001).
• No significant differences in adverse events or mortality rates (in-hospital, 30-day, 1-year) were observed between the two groups.

Conclusions:

• Performing culprit lesion PCI before complete CAG is an effective strategy for reducing reperfusion times in STEMI patients.
• This procedural optimization has the potential to improve timely myocardial reperfusion.
• Larger clinical trials are warranted to validate these findings and assess the long-term impact on clinical outcomes.