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Efficiency and Safety of Intracoronary Epinephrine Administration in Patients With ST-Elevation Myocardial Infarction With Refractory Coronary No-Reflow
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Efficiency and Safety of Intracoronary Epinephrine Administration in Patients With ST-Elevation Myocardial Infarction With Refractory Coronary No-Reflow
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Efficiency and Safety of Intracoronary Epinephrine Administration in Patients With ST-Elevation Myocardial Infarction With Refractory Coronary No-Reflow
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Journal Article
Efficiency and Safety of Intracoronary Epinephrine Administration in Patients With ST-Elevation Myocardial Infarction With Refractory Coronary No-Reflow
2024
Overview
Studies assessing the treatment of refractory no-reflow in patients with ST-elevation myocardial infarction (STEMI) are limited to clinical cases and pilot studies. This study aimed to evaluate the efficacy and safety of intracoronary adrenaline administration in such patients. Ninety consecutive patients with refractory coronary no-reflow during percutaneous coronary intervention (PCI) were prospectively included after the initial failure of conventional treatment. They were randomized into 2 groups: 45 patients in Group 1 received adrenaline, and 45 patients in Group 2 (control) received conventional treatments alone. After intracoronary drug administration, the adrenaline group demonstrated significantly higher rates of coronary flow restoration in the infarct-related artery to the level of thrombolysis in myocardial infarction grade 3 (56% vs 29% [p = 0.01]) and resolution of STEMI >50% after PCI (78% vs 36% [p <0.001]). Additionally, the adrenaline group showed a lower indexed microvascular obstruction (MVO) volume compared with the control group (0.9 [0.3; 3.1] % vs 1.9 [0.6; 7.9] % [p = 0.048]). A significant improvement in ejection fraction (EF) was observed in the adrenaline group (p = 0.025). Intracoronary adrenaline administration during PCI in patients with STEMI with refractory no-reflow is more effective compared with conventional treatments. This approach improves coronary flow in the infarct-related artery, facilitates a faster resolution of STEMI, enhances EF, and reduces MVO volume. Intracoronary adrenaline administration demonstrates a comparable safety profile to conventional treatment strategies in terms of life-threatening arrhythmias occurrence. The study suggests that intracoronary adrenaline administration during PCI could be an effective treatment strategy for patients with STEMI with refractory no-reflow.
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Publisher
Elsevier Inc,Elsevier Limited
Subject
/ Coronary Circulation - drug effects
/ Coronary Circulation - physiology
/ Edema
/ Epinephrine - administration & dosage
/ Female
/ Humans
/ intracoronary adrenaline administration
/ Male
/ No-Reflow Phenomenon - etiology
/ Patients
/ Percutaneous Coronary Intervention
/ ST Elevation Myocardial Infarction - drug therapy
/ ST Elevation Myocardial Infarction - physiopathology
