Diabetes and Mortality in Acute Coronary Syndrome: Findings from the Gulf COAST Registry.

BACKGROUND

The prevalence of traditional risk factors such as diabetes mellitus (DM) and obesity are increasing in patients with acute coronary syndrome (ACS). Furthermore, outcomes after ACS are worse in patients with DM. The high prevalence of DM and an early age at onset of ACS have been described in prior publications from the Gulf Coast Database.

AIMS

We aimed to define the effect of DM on total mortality following ACS presentation at 30-days and 1 year based on the Gulf COAST registry database.

METHODS

The Gulf COAST registry is a prospective, multinational, longitudinal, observational cohort study conducted among Gulf citizens admitted with a diagnosis of ACS. The outcomes among patients with DM following ACS were stratified into 2 groups based on their DM status. Cumulative survival stratified by groups and subgroup categories was assessed by the Kaplan-Meier method.

RESULTS

Of 3,576 ACS patients, 2,730 (76.3%) presented with non ST-segment elevation myocardial infarction (NSTEMI) and 846 (23.6%) with STEMI. Overall, 1906 patients (53.3%) had DM. A significantly higher in-hospital (4.8%), 30-day (6.7%) and 1-year (13.7%) mortality were observed in patients with DM compared with those without DM. The Kaplan-Meier survival curve showed significant differences in survival of ACS patients with or without DM, with a short period of time-to-event for DM patients with STEMI (30-days) and the longest (1-year) for NSTEMI patients without DM.

CONCLUSION

DM patients presenting with ACS-STEMI have poor short-term outcomes while DMNSTEMI patients have poor long-term outcomes. This highlights the need for strategies to evaluate DM control and integration of care to control vascular risk among this high-risk population.

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