Prevalence and extent of infarct and microvascular obstruction following different reperfusion therapies in ST-elevation myocardial infarction

Table 3 Predictors of Infarct Size (IS) in reperfused patients

Dependent variable for IS	r	R²	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.

ISSN: 1532-429X