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Left Coronary Artery Ligation: A Surgical Murine Model of Myocardial Infarction
Published on: August 9, 2022
Optimal strategy of primary percutaneous coronary intervention for acute myocardial infarction due to unprotected
Yang Gao1, Feng Zhang2, Chenguang Li1
1Department of Cardiology, Zhongshan Hospital, Fudan University; Shanghai Institute of Cardiovascular Diseases, 180 Fenglin Road, Shanghai, 200032, China.
Insights
Deferred stenting may improve outcomes for acute myocardial infarction (AMI) from left main coronary artery occlusion. The OPTIMAL trial compares deferred versus immediate stenting to assess safety and efficacy.
Area of Science:
- Cardiology
- Interventional Cardiology
- Clinical Trials
Background:
- Left main coronary artery occlusion during acute myocardial infarction (AMI) carries high mortality and adverse cardiovascular event risks.
- Primary percutaneous coronary intervention (PCI) is standard, but deferred stent implantation is explored to mitigate complications like distal embolization.
- No randomized trials have directly compared deferred versus immediate stenting for unprotected left main coronary artery occlusion in AMI.
Purpose of the Study:
- To evaluate the clinical performance and patient outcomes of deferred stenting compared to immediate stenting.
- To determine if a deferred stenting strategy reduces mortality and major adverse cardiovascular events in AMI patients with left main occlusion.
Main Methods:
- The Optimal Strategy of Primary Percutaneous Coronary Intervention for Acute Myocardial Infarction due to Unprotected Left Main Coronary Artery Occlusion (OPTIMAL) study is an open-label, randomized, multicenter trial.
- 480 patients with AMI from left main coronary artery occlusion will be randomized 1:1 to immediate stenting or deferred stenting (4-10 days post-angioplasty).
- Primary endpoint: composite of all-cause mortality or recurrent MI at 30 days. Secondary endpoints include mortality, cardiac death, recurrent MI, and revascularization at various time points.
Main Results:
- This section is not yet available as the study is likely ongoing or results are pending.
Conclusions:
- The OPTIMAL study aims to provide crucial data on the efficacy and safety of deferred stenting versus immediate stenting for acute myocardial infarction due to unprotected left main coronary artery occlusion.
Background:
Primary percutaneous coronary intervention (PCI) for patients presenting with acute myocardial infarction (AMI) caused by left main coronary artery occlusion is associated with significantly higher mortality and risks of major adverse cardiovascular events. Deferred stent implantation may improve prognosis of primary PCI by reducing distal embolization and no-reflow phenomenon. There is no randomized clinical trial focusing on the effect and outcome of deferred stent implantation on primary PCI for left main coronary artery occlusion in contrast with conventional strategy.
Methods:
The Optimal Strategy of Primary Percutaneous Coronary Intervention for Acute Myocardial Infarction due to Unprotected Left Main Coronary Artery Occlusion (OPTIMAL) study (ClinicalTrials.gov Identifier: NCT03282773) is an open-label, randomized, multicenter clinical trial in which 480 patients presenting with AMI caused by left main coronary artery occlusion recruited from 30 hospitals in mainland China will be randomly assigned 1:1 to immediate stenting or deferred stenting (scheduled 4-10 days after primary angioplasty) groups. The primary endpoint is a composite of all-cause mortality or recurrent myocardial infarction at 30 days after randomization. The secondary outcomes include all-cause mortality, cardiac death, recurrent myocardial infarction, and unplanned target vessel revascularization at 30 days, 6 months, and 12 months.
Discussion:
The OPTIMAL study is designed to compare the clinical performance of deferred stenting with that of immediate stenting for AMI caused by left main coronary artery occlusion.
Trial Registration:
ClinicalTrials.gov Identifier: NCT03282773 . Registered on 10 September 2017.
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