Nadeeja Himanthi Gamalath Seneviratne
NHSL, Sri Lanka
Title: Post coronary artery bypass graft (cabg) survival up to development of cardiac events
Biography
Biography: Nadeeja Himanthi Gamalath Seneviratne
Abstract
CABG is one of the treatment options for the patients with multi vessel coronary artery disease. This study was aimed to describe survival up to occurrence of cardiac events and factors associated with them among the CABG patients attending to cardiology clinics at NHSL.
Retrospective analytical study was carried out among the patients who had undergone CABG during 2004 to 2009. Cardiac event was defined as occurrence of any condition namely; unstable angina (UA), ST elevated myocardial infarction (STEMI), non ST elevated myocardial infarction (NSTEMI) and heart failure (HF) following the 12 months of CABG.
The sample (n=421) consists 74.6% males and mean age was 63.16years (SD = 7.86). Among them UA (13.3%), STEMI (0.5%), NSTEMI (3.1%) and heart failure (8.6%) were detected. Kaplan-Mayer analysis revealed the probability of survival at 5 years was 0.796 (CI 0.781-0.871) and 10 year was 0.581 (CI 0.516- 0.688). According to the Cox Regression models males had 0.53 (95% CI 0.323 – 0.863) higher risk compared to females. Cardiac diagnosis led to CABG was significantly associated with cardiac events. STEMI had age and sex standardized hazard ratio of 1.845(CI=0.926 -3.699) while for NSTEMI it was 1.214 (CI= 0.593- 2.484).
Though the survival of CABG patients was satisfactory, females and patients with STEMI and NSTEMI prior to CABG have higher likelihood of developing cardiac events. CABG could be recommended as a good treatment option and need of close follow up of high risk patients is emphasized.