Deferred Stenting for Heavy Thrombus Burden During Percutaneous Coronary Intervention for ST-Elevation MI

Area of Science:

• Cardiology
• Interventional Cardiology
• Acute Coronary Syndromes

Background:

• ST-elevation MI (STEMI) often presents with significant thrombus burden.
• Primary percutaneous coronary intervention with stenting can trigger slow-flow/no-reflow, increasing periprocedural MI risk.
• Deferred stenting is explored to reduce thrombus burden and mitigate these risks.

Purpose of the Study:

• To evaluate the safety and feasibility of deferred stenting after 5 days of anticoagulation in a STEMI patient with a large thrombus.
• To review existing literature on deferred stenting strategies in STEMI.
• To propose a clinical algorithm for implementing deferred stenting.

Main Methods:

• Case report of a 45-year-old smoker with STEMI and large thrombus.
• Review of registries, trials, and meta-analyses on deferred stenting.
• Analysis of benefits and harms of the deferred stenting strategy.

Main Results:

• The case demonstrated safety and feasibility of deferred stenting post-anticoagulation.
• Literature review suggests potential benefits in properly selected patients.
• Analysis highlights the need for careful patient selection to maximize benefits and minimize harms.

Conclusions:

• Deferred stenting, particularly after prolonged anticoagulation, shows promise for reducing infarct size in selected STEMI patients.
• A tailored approach based on thrombus burden and patient factors is crucial.
• An evidence-based algorithm can guide clinical decision-making for deferred stenting.