TY - JOUR
T1 - Late potentials recording with a precordial signal‐averaged electrocardiogram in 53 consecutive patients with a first acute myocardial infarction
T2 - Incidence and early natural history
AU - Strasberg, B.
AU - Abboud, S.
AU - Kusniec, J.
AU - Sclarovsky, S.
AU - Agmon, J.
PY - 1990/10
Y1 - 1990/10
N2 - 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.
AB - 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.
KW - acute myocardial infarction
KW - late potentials
KW - signal‐averaged ECG
UR - http://www.scopus.com/inward/record.url?scp=0025677497&partnerID=8YFLogxK
U2 - 10.1002/clc.4960131005
DO - 10.1002/clc.4960131005
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AN - SCOPUS:0025677497
SN - 0160-9289
VL - 13
SP - 699
EP - 702
JO - Clinical Cardiology
JF - Clinical Cardiology
IS - 10
ER -