Abstract:
Background: Recent studied suggest that renal insufficiency is associated with poorer outcome in patients with acute coronary syndrome (ACS), but for the Thai, Eastern population, this prognostic value is unknown. Method : We studied patients hospitalized with ACS. Clinical characteristics, treatment strategies, in hospital mortality and 1-year mortality were compared for patients with normal minimally renal dysfunction (estimated glomerular filtration rate [eGFR] > 60 ml/min/1.73 sq.m., moderate renal dysfunction (eGFR 30-60 ml/min/1.73 sq.m.), and sever renal dysfunction (eGFR < 30 ml/min/1.73 sq.m. Results : Of the 1809 patients with mean follw-up 10.8 months, the mean age was 65 years, and 59.2% of the groups were male. Patients with severe renal dysfunction were significantly older, less likely to be male (45.2%, p < 0.001), and had a greater prevalence of diabetes (63.1%, p < 0.001) and hypertension (85.4%, p < 0.001). In-hospital and 1-year mortality were 13.5% and 22.5% respectively. According to discharge diagnosis, unadjusted hazard ratios for in-hospital death from any cause was statistically significant only in ST elevation Ml group, hazard ratio was 2.73 (95% CI, 1.72 to 4.34) and 6.27 (95% CI 3.78 to 10.4) for moderate and severe renal dysfunction group, respectively. The risk of death for all types of ACS at 1-year follow up was increased with eGFR decreased below 60 ml/min/1.73 sq.m., the adjusted hazard ratio was 1.66 (95% CI, 1.22 to 2.23) and 1.91 (95% CI, 1.34 to 2.72) for moderate and severe renal dysfunction group, respectively. Conclusion : Renal dysfunction at presentation is an independent, graded association with higher in-hospital (STEM) and 1-year mortality in patients with a broad range of ACS.