Baseline characteristics, management practices, and long-term outcomes of middle eastern patients in the second gulf registry of acute coronary events [Gulf RACE-2]

ABSTRACT

Limited data are available on patients with acute coronary syndromes [ACS] and their long-term outcomes in the Arabian Gulf countries. We evaluated the clinical features, management, in-hospital, and long-term outcomes of in such a population. A 9-month prospective, multicenter study conducted in 65 hospitals from 6 countries that also included 30 day and 1-year mortality follow-up. ACS patients included those with ST-elevation myocardial infarction [STEMI] and non-ST-elevation acute coronary syndrome [NSTEACS], including non-STEMI and unstable angina. The registry collected the data prospectively. Between October 2008 and June 2009, 7930 patients were enrolled. The mean age [standard deviation], 56 [17] years; 78.8% men; 71.2% Gulf citizens; 50.1% with central obesity; and 45.6% with STEMI. A history of diabetes mellitus was present in 39.5%, hypertension in 47.2%, and hyperlipidemia in 32.7%, and 35.7% were current smokers. The median time from symptom onset to hospital arrival for STEMI patients was 178 minutes [interquartile range, 210 minutes]; 22.3% had primary percutaneous coronary intervention [PCI] and 65.7% thrombolytic therapy, with 34% receiving therapy within 30 minutes of arrival. Evidence-based medication rates upon hospital discharge were 68% to 95%. The in-hospital PCI was done in 21% and the coronary artery bypass graft surgery in 2.9%. The in-hospital mortality was 4.6%, at 30 days the mortality was 7.2%, and at 1 year after hospital discharge the mortality was 9.4%; 1-year mortality was higher in STEMI [11.5%] than in NSTEACS patients [7.7%; P<.001].Compared to developed countries, ACS patients in Arabian Gulf countries present at a relatively young age and have higher rates of metabolic syndrome features. STEMI patients present late, and their acute management is poor. In-hospital evidence-based medication rates are high, but coronary revascularization procedures are low. Long-term mortality rates increased severalfold compared with in-hospital mortality