Table 3.
Predictors of Infarct Size (IS) in reperfused patients
| Dependent variable for IS | r | R 2 | B | p |
|---|---|---|---|---|
|
Univariate |
|
|
|
|
| TTR (mins)a |
0.47 |
0.21 |
26.17 |
<0.001 |
| AAR (%LVM) |
0.46 |
0.20 |
0.39 |
<0.001 |
| LAD IRA |
0.39 |
0.15 |
-- |
0.001 |
| Reperfusion method |
0.39 |
0.15 |
-- |
0.003 |
| TIMI grade post-PCI |
0.32 |
0.09 |
-8.23 |
0.006 |
| Time from admission to CMR (d) |
0.29 |
0.07 |
4.62 |
0.01 |
| TIMI grade pre-PCI |
0.15 |
0.01 |
-2.74 |
0.22 |
|
Multivariate |
|
|
|
|
|
(Strongest model = TTR + AAR + LAD IRA + Reperfusion method + TIMI post + Time from admission to CMR): |
|
0.41 |
|
|
| TTR (mins)a |
|
|
17.72 |
0.02 |
| AAR (%LVM) |
|
|
0.23 |
0.02 |
| TIMI grade post-PCI |
|
|
-5.21 |
0.04 |
| LAD IRA |
|
|
6.49 |
0.10 |
| Time from admission to CMR (d) |
|
|
2.54 |
0.12 |
| Lysis v PPCI |
|
|
-8.60 |
0.08 |
| R-PCI v PPCI |
|
|
6.45 |
0.27 |
| Late PCI v PPCI | -7.05 | 0.45 |
PCI = percutaneous coronary intervention, TTR = time from symptom onset to revascularisation, AAR = ischaemic area at risk (%LV mass), IRA = infarct-related artery, LAD = left anterior descending artery, TIMI = thrombolysis in myocardial infarction, R-PCI = rescue PCI.
aanalysed using Log10 transformed data.