Key result
Post-MI low-voltage ECG is linked to poor prognosis with ~41% combined mortality through one year.
Why the study?
The prognostic significance of low voltage electrocardiograms within 72 hours after acute myocardial infarction was unclear.
Cohort (n=325)
Low-voltage ECG early after AMI was associated with high mortality and disability; leaves open its added prognostic value beyond modern markers.
In a retrospective study of patients with acute myocardial infarction admitted to a coronary monitoring unit in 1971 12 per cent (39 patients) had low voltage electrocardiograms within 72 hours of admission. Of these, 7 patients (18%) died while in hospital and a further 9 (23%) died within one year of their infarction. Of the 23 patients who survived, 16 were severely incapacitated by their symptoms at the one-year follow-up. A low voltage electrocardiogram in association with acute myocardial infarction appears to imply a poor prognosis in terms of both mortality and morbidity, independently of other prognostic indices.
No takes yet. Share an insight, caveat, or question.
Fox et al. (1975) conducted a cohort in Acute myocardial infarction (n=325). Low voltage electrocardiogram was evaluated on Mortality and morbidity. Low voltage electrocardiogram within 72 hours of acute myocardial infarction was associated with poor prognosis, including 18% in-hospital mortality and an additional 23% mortality at 1 year.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: