Late potentials recording with a precordial signal‐averaged electrocardiogram in 53 consecutive patients with a first acute myocardial infarction: Incidence and early natural history

B. Strasberg*, S. Abboud, J. Kusniec, S. Sclarovsky, J. Agmon

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Signal‐averaged electrocardiograms were obtained in 53 consecutive patients with a first acute myocardial infarction (AMI) who survived the first 10 days of hospitalization. The recording was performed twice, at Day 1 and at Day 10 of hospitalization, in patients without bundle‐branch block and who did not receive antiarrhythmic therapy. Signal‐averaged ECGs were obtained with an instrument which analyzes the presence of late potentials (LP) in each individual precordial lead. There were 41 men and 12 women, mean age of 67 years. On Day 1, three patients had L.P (5.6%). On Day 10, LP was recorded in 11 patients (21%). In only one patient was LP transient. Patients who developed LP by Day 10 (absent in Day 1) had statistically significant lower root mean square (rms) voltage and higher QRS duration than patients who did not develop LP on Day 10. In conclusion, in patients with a first AMI who survive the initial hospitalization period and are not in need of antiarrhythmic therapy have an incidence of LP of 21%. A predischarge recording is preferable since this will maximize the chances of detecting LP.

Original languageEnglish
Pages (from-to)699-702
Number of pages4
JournalClinical Cardiology
Volume13
Issue number10
DOIs
StatePublished - Oct 1990

Keywords

  • acute myocardial infarction
  • late potentials
  • signal‐averaged ECG

Fingerprint

Dive into the research topics of 'Late potentials recording with a precordial signal‐averaged electrocardiogram in 53 consecutive patients with a first acute myocardial infarction: Incidence and early natural history'. Together they form a unique fingerprint.

Cite this