Nadeeja Himanthi Gamalath Seneviratne
The National Hospital of Sri Lanka, Sri Lanka
Title: Factors associated with survival of post Coronary Artery Bypass Graft (CABG) patients registered in cardiology Unit, National Hospital Sri Lanka (NHSL)
Biography
Biography: Nadeeja Himanthi Gamalath Seneviratne
Abstract
CABG is one of the treatment options for the patients with coronary artery disease (CAD). This study was aimed to describe survival up to occurrence of cardiac events and factors associated with them among CABG patients at NHSL.
Retrospective analytical study was carried out among the patients who had undergone CABG at least one year before the date of data collection. Cardiac event was defined as new occurrence of any condition namely; unstable angina (UA), ST elevated myocardial infarction (STEMI), non ST elevated myocardial infarction (NSTEMI) and heart failure (HF). Survival was assessed up to the defined cardiac events.
The sample (n=421) consists 74.6% males and mean age was 63.16years (SD = 7.86). Event rates were UA (13.3%), STEMI (0.5%), NSTEMI (3.1%) and heart failure (8.6%). Kaplan-Mayer survival analysis revealed the probability of survival at 5 years was 79.6% (CI 0.781-0.871) and 10 year was 58.1% (CI 0.516- 0.688). Cox regression revealed significant associations with age (HR- 0.973, p=0.023), family history (FH) of hypertension (HR-2.2, p=0.044) compared to negative family history and activities of daily living (ADL) independency (HR=0.16, p= 0.011) compared to the ADL dependency.
CABG surgery reserves its own place in management of CAD. Sri Lankan survival data of CABG patients seems to be similar to other countries of the world. Age, status of ADL prior to CABG and family history of hypertension were significantly associated with survival.
