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Relationship between changes in R-wave amplitude during left ventriculography and the seriousness of coronary heart

Cevdet Erdöl1, Merih Baykan, Sükrü Celik

  • 1Department of Cardiology, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey. ercevdet@gul.net.tr

Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc
|June 7, 2002
PubMed

Insights

Electrocardiography (ECG) R-wave amplitude changes during left ventriculography can predict severe three-vessel coronary heart disease. This finding aids in identifying high-risk patients for closer monitoring during coronary angiography.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Diagnostic Electrocardiography

Background:

  • Coronary angiography carries risks, especially for patients with severe coronary heart disease.
  • Predicting severe coronary heart disease pre-procedure can mitigate complications like myocardial infarction or death.

Purpose of the Study:

  • To evaluate the utility of R-wave amplitude changes during left ventriculography for predicting coronary heart disease severity.
  • To identify patients requiring enhanced monitoring during coronary angiography.

Main Methods:

  • Electrocardiography (ECG) R-wave amplitudes were measured in Lead DII during left ventriculography.
  • Patients were categorized based on the number of diseased coronary vessels (0, 1, 2, or 3).
  • R-wave amplitudes were compared between groups and with a control group.

Main Results:

  • No significant R-wave amplitude differences were observed before or after ventriculography between groups.
  • A statistically significant decrement in R-wave amplitude was noted during left ventriculography in patients with three-vessel disease compared to controls (6.4 mm vs. 9.7 mm).
  • R-wave amplitude changes did not significantly differ between control and one or two-vessel disease groups.

Conclusions:

  • A decrease in R-wave amplitude during left ventriculography is a potential predictor of severe three-vessel coronary heart disease.
  • Patients exhibiting this R-wave amplitude decrement warrant closer surveillance during coronary angiography procedures.

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