Abstract
was associated with higher mortality. Unadjusted, each 0.5mm step increase in V1 ST level was associated with ∼25% increase in 30-day mortality and this was true for patients with and patients without V3 ST depression. The odds ratio for mortality was 1.21 (95% confidence interval 1.07–1.37) after adjusting for infero-lateral ST elevation and clinical factors and 1.24 (95% confidence interval 1.09–1.40) if also adjusted to V3 ST level. In contrast lead V1 ST depression was not associated with mortality after adjustment for V3 ST level. V1 ST elevation ≥1mm, analyzed dichotomously in all patients, was significantly associated with higher mortality (28% higher unadjusted, 51% higher adjusted to V3 ST level, and 35% higher adjusted to ECG and clinical factors). Resolution of V1 ST elevation ≥1mm 60min after fibrinolysis was associated with lower mortality (5.5% vs 10.8%, P= 0.0012). Conclusion: V1 ST elevation identifies higher risk patients with inferior AMI. doi:10.1016/j.hlc.2009.05.276
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