Key result
ST-vector magnitude episodes of ischaemia on 24-hour VCG monitoring independently predicted the risk of death, non-fatal infarction, unstable angina, or revascularization at 1 year (P=0.005).
Why the study?
Does continuous on-line vectorcardiographic monitoring predict unfavourable outcomes in patients with unstable angina pectoris or non-Q-wave infarction?
Cohort (n=195)
Does continuous on-line vectorcardiographic monitoring predict unfavourable outcomes in patients with unstable angina pectoris or non-Q-wave infarction?
p-value: p=0.005
Continuous vectorcardiographic monitoring within 24 hours of admission provides independent prognostic information for identifying high-risk patients with unstable angina or non-Q-wave infarction.
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May aid risk stratification in unstable angina; leaves open whether VCG monitoring alters management or outcomes.
Andersen et al. (1996) conducted a cohort in Unstable angina pectoris or non-Q-wave infarction (n=195). ST-vector magnitude (ST-VM) episodes of ischaemia on continuous VCG monitoring vs. Absence of ST-VM episodes was evaluated on Death, non-fatal infarction, unstable angina during the first year, or revascularization before hospital discharge (p=0.005). ST-vector magnitude episodes of ischaemia on 24-hour VCG monitoring independently predicted the risk of death, non-fatal infarction, unstable angina, or revascularization at 1 year (P=0.005).
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