From Clot Burden to Cardiogenic Shock: IV Antiplatelet Strategies in Acute MI Management-From Clot Burden to Cardiogenic Shock: IV Antiplatelet Strategies in Acute MI Management

Video Transcription

Video Summary

The webinar focused on managing acute MI with large thrombus burden, cardiogenic shock, and perioperative antiplatelet challenges. Speakers presented several complex PCI cases and discussed practical strategies for restoring coronary flow, preventing no-reflow, and balancing ischemic versus bleeding risk.<br /><br />Key points from the thrombus session included: assess thrombus burden carefully, use full anticoagulation, confirm true lumen wiring with imaging when possible, start with small-balloon predilation, and avoid premature stenting into heavy clot. Selective aspiration thrombectomy can be useful in high-thrombus cases despite guideline limitations, but routine use is not recommended due to stroke risk. Intracoronary drugs such as epinephrine, vasodilators, and 2b/3a inhibitors were discussed as bailout options, with cangrelor highlighted as a rapid, reversible IV P2Y12 inhibitor useful when oral absorption may be impaired.<br /><br />In cardiogenic shock, cangrelor may provide rapid platelet inhibition when oral agents are unreliable, though trial data are mixed: observational studies suggest benefit, while the randomized DAP Shock AMI trial showed improved platelet inhibition and angiographic flow but no clear 30-day clinical endpoint benefit.<br /><br />The second half addressed perioperative management in patients at high risk for postoperative cardiovascular events. Speakers reviewed guideline recommendations for delaying surgery after PCI, the hazards of interrupting dual antiplatelet therapy too early, and how cangrelor can be used as a bridging agent because of its fast onset and short half-life. A transplant patient with postoperative MI illustrated the importance of multidisciplinary decision-making, intravascular imaging, and tailoring antiplatelet therapy to bleeding risk.

Asset Subtitle

Binita Shah, MD, FSCAI; Rhian E. Davies, DO, FSCAI; Prashanth D. Thakker, MD, FSCAI; Chitra Mosarla, MD; Nathaniel Rosso Smilowitz, MD, FSCAI

Asset Caption

closed captions are computer-generated

Keywords

acute MI

large thrombus burden

cardiogenic shock

complex PCI

coronary flow restoration

no-reflow prevention

aspiration thrombectomy

cangrelor

dual antiplatelet therapy

perioperative antiplatelet bridging