Abstract 20678: A Systematic Review of World-Wide Characteristics and Management of Patients With ST-Segment Elevation Myocardial Infarction

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Yang Zhan ◽  
Thao Huynh

Background: Management of ST elevation myocardial infarction (STEMI) has made tremendous progresses during the last decades. However, it remains uncertain whether all STEMI patients are receiving optimal care and whether variation in care has any impact on their outcomes. We aim to characterize the contemporary global characteristics, managements, and outcomes of STEMI patients. Methods and Results: We searched EMBASE/MedLINE Ovid for observational data of patients with STEMI. We identified 17 studies enrolling 112 772 patients in 20 countries during the last 5 years (2008-2013). The median age ranged from 54 to 66 years with 13%-33% females. Twelve percent to 39% of patients presented in Killip heart failure class 2-4. In-hospital use of aspirin (ASA), P2Y12 inhibitor/thienopyridines, and systemic anticoagulation was 90-99%, 77-97%, and 61-100% respectively. Reperfusion was provided for 63%-97% of patients. Fibrinolysis was used in 0.7%-66% with a door-to-needle (D2N) time of 28-65 minutes; 12%-74% with D2N <30minutes. Primary percutaneous coronary intervention was performed for 17%-97% with a door-to-balloon (D2B) time of 40-125 minutes; 40%-94% had D2B <90 minutes. Emergency cardiac surgery was performed in 0.4%-8% of patients. Discharge prescriptions included ASA, thienopyridines/P2Y12 inhibitors, beta-blockers, and statins in 85%-99%, 77%-97%, 54%-83%, and 64%-95% respectively. In-hospital outcomes included death (2%-10%), recurrent myocardial infarction (0.4%-5%), stroke (0.2%-1.6%), major bleeding (0.3%-7%). The median hospital stay ranged from 4-6 days. Conclusion: Despite recent progresses in STEMI care, there remains marked heterogeneity in STEMI care and outcomes worldwide that warrants further attention. Identification of gaps to STEMI care and remedial actions may improve the global outcomes of STEMI patients.

2019 ◽  
Vol 9 (5) ◽  
pp. 469-477 ◽  
Author(s):  
Niels PG Hoedemaker ◽  
Vincent Roolvink ◽  
Robbert J de Winter ◽  
Niels van Royen ◽  
Valentin Fuster ◽  
...  

Background: Conflicting evidence is available on the efficacy and safety of early intravenous beta-blockers before primary percutaneous coronary intervention for ST-segment elevation myocardial infarction. We performed a patient-pooled meta-analysis of trials comparing early intravenous beta-blockers with placebo or routine care in ST-segment elevation myocardial infarction patients undergoing primary percutaneous coronary intervention. Aim: The aim of this study was to evaluate the clinical and safety outcomes of intravenous beta-blockers in ST-segment elevation myocardial infarction patients undergoing primary percutaneous coronary intervention. Methods: Four randomized trials with a total of 1150 patients were included. The main outcome was one-year death or myocardial infarction. Secondary outcomes included biomarker-based infarct size, left ventricular ejection fraction during follow-up, ventricular tachycardia, and a composite safety outcome (cardiogenic shock, symptomatic bradycardia, or hypotension) during hospitalization. Results: One-year death or myocardial infarction was similar among beta-blocker (4.2%) and control patients (4.4%) (hazard ratio: 0.96 (95% confidence interval: 0.53–1.75, p=0.90, I2=0%). No difference was observed in biomarker-based infarct size. One-month left ventricular ejection fraction was similar, but left ventricular ejection fraction at six months was significantly higher in patients treated with early intravenous beta-blockade (52.8% versus 50.0% in the control group, p=0.03). No difference was observed in the composite safety outcome or ventricular tachycardia during hospitalization. Conclusion: In ST-segment elevation myocardial infarction patients undergoing primary percutaneous coronary intervention, the administration of early intravenous beta-blockers was safe. However, there was no difference in the main outcome of one-year death or myocardial infarction with early intravenous beta-blockers. A larger clinical trial is warranted to confirm the definitive efficacy of early intravenous beta-blockers.


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