impact of raised troponin in older patients in the presence or absence of coronary artery disease

2017 
1. Abstract 1.1. Objective: Recent data has suggested an increased risk for patients with raised troponin,but prognosis of older patients with non-obstructive Coronary Artery Disease (CAD) is still unknown. 1.2. Methods : A retrospective cohort analysis was performed for all in-patients with raised troponin T (January 2010 to December 2011, n=1351), 858 above the age of 65 were studied. Of these, 513 had angiography and they were stratified according to their coronary arteries anatomy into older obstructive CAD (≥ 50% stenosis) (OO- CAD, 448, 87.3%) and older non-obstructive (<50% stenosis) (ONO-CAD, 65, 12.7%).  The 345 patients who had no angiography were followed separately for their outcome. The risk of death and Major Adverse Cardiac and Cerebrovascular Events (MACCE) rates at one year, were calculated for the older groups who had angiography and these were compared to the total patients who received angiograms for raised troponin. 1.3. Results: The mean age was similar between both older groups (77.9 ± 6.95 Vs.76.9 ± 7.02, P=0.236). The one-year MACCE rate was similar in both the ONO-CAD and OO-CAD group (one-year MACCE: RR [95% CI]=1.01[0.61-1.66], P=0.95). This was driven by the acute coronary syndrome patients who had unplanned revascularization and stroke. The one-year mortality was equal in ONO-CAD and OO-CAD group with a RR [95% CI]=1.48[0.81-2.7], P=0.19. This was similar to the total patient groups mortality at one- year with a RR [95% CI]= 0.93 [0.53-1.64], P=0.8. 1.4. Conclusion: Older patients with a raised troponin and non-obstructive CAD are at equivalent MACCE & mortality risk at one year to those with obstructive CAD.
    • Correction
    • Source
    • Cite
    • Save
    • Machine Reading By IdeaReader
    0
    References
    0
    Citations
    NaN
    KQI
    []