Prehospital crushed versus integral prasugrel loading dose in STEMI patients with a large myocardial area
Jeroen M Wilschut1, Rosanne F Vogel2,3, Jacob J Elscot1
1Erasmus University Medical Center, Rotterdam, the Netherlands.
Insights
Crushing prasugrel loading doses may improve blood flow in ST-segment elevation myocardial infarction (STEMI) patients with large heart attacks. This strategy offers a safe and effective way to enhance myocardial reperfusion in high-risk STEMI subgroups.
Area of Science:
- Cardiology
- Interventional Cardiology
- Emergency Medicine
Background:
- The efficacy of crushed prasugrel loading doses in ST-segment elevation myocardial infarction (STEMI) with large myocardial infarction is not well-established.
- Investigating prehospital administration of crushed prasugrel is crucial for optimizing treatment in these critical patients.
Purpose of the Study:
- To determine if prehospital crushed prasugrel loading dose benefits STEMI patients with large myocardial infarction.
- To assess the impact of crushed prasugrel on reperfusion markers in STEMI patients.
Main Methods:
- Analysis of patients from the CompareCrush trial with prehospital ECG data.
- Confirmation of large myocardial area at risk by an independent core laboratory.
- Comparison of pre- and postprocedural angiographic markers, including TIMI 3 flow, thrombus burden, and myocardial blush grade.
Main Results:
- Crushed prasugrel significantly improved postprocedural TIMI 3 flow in STEMI patients with large myocardial area (92% vs 79%, OR 3.00).
- No significant improvement in TIMI 3 flow was observed in STEMI patients without a large myocardial area (91% vs 95%, OR 0.47).
- A significant interaction was noted (p=0.009), indicating a differential effect based on myocardial area size.
Conclusions:
- Prehospital crushed prasugrel may enhance postprocedural TIMI 3 flow in STEMI patients with large myocardial area on ambulance ECG.
- Crushing prasugrel loading doses appears to be a safe, fast, and cost-effective strategy for improving myocardial reperfusion in this high-risk STEMI subgroup.
- This approach supports optimized primary percutaneous coronary intervention outcomes for STEMI patients with large myocardial infarction.
Background:
The effect of administering a crushed prasugrel loading dose is uncertain in patients presenting with a large myocardial infarction and ST-segment elevation myocardial infarction (STEMI).
Aims:
The aim of this study was to investigate if patients with a large myocardial infarction may benefit from prehospital administration of a crushed prasugrel loading dose.
Methods:
Patients from the CompareCrush trial with an available ambulance electrocardiography (ECG) were included in the study. An independent core laboratory confirmed a prehospital large myocardial area. We compared pre- and postprocedural angiographic markers, including Thrombolysis in Myocardial Infarction (TIMI) 3 flow in the infarct-related artery, high thrombus burden, and myocardial blush grade 3, in STEMI patients with and without a prehospital large myocardial area.
Results:
Ambulance ECG was available for 532 patients, of whom 331 patients were identified with a prehospital large myocardial area at risk. Crushed prasugrel significantly improved postprocedural TIMI 3 flow rates in STEMI patients with a prehospital large myocardial area at risk (92% vs 79%, odds ratio [OR] 3.00, 95% confidence interval [CI]: 1.50-6.00) but not in STEMI patients without a prehospital large myocardial area at risk (91% vs 95%, OR 0.47, 95% CI: 0.14-1.57; pinteraction=0.009).
Conclusions:
Administration of crushed prasugrel may improve postprocedural TIMI 3 flow in STEMI patients with signs of a large myocardial area at risk on the ambulance ECG. The practice of crushing tablets of prasugrel loading dose might, therefore, represent a safe, fast and cost-effective strategy to improve myocardial reperfusion in this high-risk STEMI subgroup undergoing primary percutaneous coronary intervention.
More Related Videos
05:26Postconditioning with Lactate-enriched Blood for Cardioprotection in ST-segment Elevation Myocardial Infarction
Published on: May 28, 2019
05:41Left Anterior Descending Coronary Artery Ligation for Ischemia-Reperfusion Research: Model Improvement via Technical Modifications and Quality Control
Published on: December 16, 2022
Related Concept Videos
01:20Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
01:30Acute Coronary Syndrome I: Introduction
01:30Acute Coronary Syndrome III: Diagnostic Studies
01:28Acute Coronary Syndrome IV: Interprofessional Care
01:29Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care