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A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis
18:11

A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis

Published on: December 28, 2012

24.4K

aVR ST-segment changes and prognosis of ST-segment elevation myocardial infarction

Sogol Sedighi1, Mustafa Fattahi1, Pooyan Dehghani1

  • 1Cardiovascular Research Center Shiraz University of Medical Sciences Shiraz Iran.

Health Science Reports
|October 8, 2021
PubMed

Insights

ST-segment changes in the aVR lead can predict outcomes in ST-segment elevation myocardial infarction (STEMI). aVR ST elevation predicts major adverse cardiovascular events in anterior STEMI, while aVR ST depression predicts events in inferior STEMI.

Area of Science:

  • Cardiology
  • Electrocardiography
  • Myocardial Infarction Research

Background:

  • The prognostic value of aVR lead ST-segment changes in acute myocardial infarction (AMI) is not fully established.
  • Understanding these changes is crucial for predicting patient outcomes following AMI.

Purpose of the Study:

  • To evaluate the predictive value of ST-segment variations in the aVR lead for outcomes in patients experiencing their first ST-segment elevation myocardial infarction (STEMI).
  • To assess the association between aVR lead changes and major adverse cardiovascular events (MACE) within 30 days post-STEMI.

Main Methods:

  • Prospective cohort study of first-episode STEMI patients undergoing percutaneous coronary intervention.
  • Electrocardiogram (ECG) data collected upon hospital admission.
  • Follow-up for 30 days to monitor cardiovascular complications.

Main Results:

  • In anterior STEMI, admission aVR ST elevation ≥1 mm independently predicted 30-day MACE (P-trend=.002).
  • In inferior STEMI (± RV), admission aVR ST depression ≥1 mm independently predicted 30-day MACE (P-trend=.01).

Conclusions:

  • Admission aVR ST elevation ≥1 mm is a strong predictor of MACE in anterior STEMI patients within 30 days.
  • Admission aVR ST depression ≥1 mm is a strong predictor of MACE in inferior STEMI patients within 30 days.
Abstract

Keywords:
aVR ST‐segment changemyocardial infarctionprognosis

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