[Evolution since 2002 of the management of patients with ST elevated acute coronary syndrome (STEMI) in Île-de-France. E-MUST survey]

Evolution of REperfusion Strategies and impact on mortality in Old and Very OLD STEMI patients. The RESOVOLD-e-MUST study

BACKGROUND

The use of myocardial reperfusion-mainly via angioplasty-has increased in our region to over 95%. We wondered whether old and very old patients have benefited from this development.

METHODS

Setting: Greater Paris Area (Ile-de-France).

DATA

Regional registry, prospective, including since 2003, data from 39 mobile intensive care units performing prehospital treatment of patients with ST segment elevation myocardial infarction (STEMI) (<24 h).

PARAMETERS

Demographic, decision to perform reperfusion and outcome (in-hospital mortality).

PRIMARY ENDPOINT

Reperfusion decision rate by decade over age 70.

SECONDARY ENDPOINT

Outcome.

RESULTS

We analysed the prehospital management of 27,294 patients. There were 21,311 (78%) men and 5,919 (22%) women with a median age of 61 (52-73 years). Among these patients, 8,138 (30%) were > 70 years, 3,784 (14%) > 80 years and 672 (2%) > 90 years.The reperfusion decision rate was 94%. It decreased significantly with age: 93, 90 and 76% in patients in their seventh, eighth and ninth decade, respectively. The reperfusion decision rate increased significantly over time. It increased in all age groups, especially the higher ones. Mortality was 6%. It increased significantly with age: 8, 16 and 25% in patients in their seventh, eighth and ninth decade, respectively. It significantly decreased over time in all age groups. The odds ratio of the impact of reperfusion decision on mortality reached 0.42 (0.26-0.68) in patients over 90 years.

CONCLUSION

the increase in the reperfusion decision rate was the greatest in the oldest patients. It reduced mortality even in patients over 90 years of age.

Decision to deploy coronary reperfusion is not affected by the volume of ST-segment elevation myocardial infarction patients managed by prehospital emergency medical teams

OBJECTIVE

Mortality in patients with ST-segment elevation myocardial infarction (STEMI) has been associated with the volume of activity of percutaneous coronary intervention (PCI) facilities. This observational study investigated whether the coronary reperfusion-decision rate is associated with the volume of activity in a prehospital emergency setting.

METHODS

Prospectively collected data for the period 2003-2013 were extracted from a regional registry of all STEMI patients handled by eight dispatch centers (SAMUs) in and around Paris [41 mobile ICU (MICUs)]. A possible association between volume of activity (number of STEMIs) and coronary reperfusion-decision rate, and subsidiarily between volume of activity and choice of technique (fibrinolysis vs. primary PCI), were investigated. Explanatory factors (patient age, sex, delay between pain onset and first medical contact, and access to a PCI facility) were analyzed in a multivariate analysis.

RESULTS

Overall, 18 162 patients; male/female 3.5/1; median age 62 (52-72) years were included in the analysis. The median number of STEMIs per MICU was 339 (IQ 220-508) and that of reperfusion-decisions was 94% (91-95). There was no association between the decision rate and the number of STEMIs (P = 0.1). However, the decision rate was associated with age, sex, delay, and access to a PCI facility (P < 0.0001) in a highly significant way. Fibrinolysis was a more frequent option for low-volume (remoter PCI facilities) than high-volume MICUs (30 vs. 16%).

CONCLUSION

The decision of coronary reperfusion in a prehospital emergency setting depended on patient characteristics, delay between pain onset and first medical contact, and access to a PCI facility, but not on volume of activity. Promoting fibrinolysis use in underserved areas might help increase the reperfusion-decision rate.

Management of acute coronary syndrome in emergency departments: a cross sectional multicenter study (Tunisia)

Background

We aimed to describe diagnosed acute coronary syndrome (ACS) and its care management and outcomes in emergency departments (EDs) and to determine related cardiovascular risk factors (CVRFs).

Methods

We conducted a cross sectional multicenter study that included 1173 adults admitted to EDs for acute chest pain (ACP) in 2015 at 14 sites in Tunisia. Data included patients’ baseline characteristics, diagnosis, treatment and output.

Results

ACS represented 49.7% of non-traumatic chest pain [95% CI: 46.7–52.6]; 74.2% of ACS cases were unstable angina/non-ST-segment-elevation myocardial infarction (UA/NSTEMI). Males represented 67.4% of patients with ACS (p < 0.001). The median age was 60 years (IQR 52–70). Emergency medical service transportation was used in 11.9% of cases. The median duration between chest pain onset and ED arrival was two hours (Inter quartile ranges (IQR) 2–4 h). The age-standardized prevalence rate was 69.9/100,000 PY; the rate was 96.24 in men and 43.7 in women. In the multivariable analysis, CVRFs related to ST segment elevation myocardial infarction were age correlated to sex and active smoking. CVRFs related to UA/NSTEMI were age correlated to sex, familial and personal vascular history and type 2 diabetes. We reported 27 cases of major adverse cardiovascular events (20.0%) in patients with STEMI and 36 in patients with UA/NSTEMI (9.1%).

Conclusion

Half of the patients consulting EDs with ACP had ACS. Emergency medical service transportation calls were rare. Management delays were acceptable. The risk of developing an UA/NSTEMI was equal to the number of CVRFs + 1. To improve patient outcomes, it is necessary to increase adherence to international management guidelines.