Prinzmetal Angina: ECG Changes and Clinical Considerations: A Consensus Paper

DOI Web Site Web Site 被引用文献1件
  • Antonio Bayés de Luna
    Santa Creu i Sant Pau Hospital Cardiovascular Research Center CSIC‐ICCC Barcelona Spain
  • Iwona Cygankiewicz
    Department of Electrocardiology, Sterling Regional Center for Heart Disease Medical University of Lodz Poland
  • Adrian Baranchuk
    Cardiac Electrophysiology and Pacing Kingston General Hospital Queen's University Ontario Canada
  • Miquel Fiol
    Coronary Care Unit, IdISPa, Son Espases Hospital Palma de Mallorca Spain
  • Yochai Birnbaum
    The Section of Cardiology The Department of Medicine Baylor College of Medicine Houston TX
  • Kjell Nikus
    Heart Hospital Tampere University Hospital, and University of Tampere Tampere Finland
  • Diego Goldwasser
    Santa Creu i Sant Pau Hospital Cardiovascular Research Center CSIC‐ICCC Barcelona Spain
  • Javier Garcia‐Niebla
    Sanitary Health Services, E1 Hierro Valle del Golfo Health Center Canary Islands Spain
  • Samuel Sclarovsky
    Tel‐Aviv University, Ramat Aviv Tel Aviv Israel
  • Hein Wellens
    Cardiovascular Research Center Maastrich The Netherlands
  • Günter Breithardt
    Cardiovascular Department (AFNET) Clinical University Institute Münster Münster Germany

説明

<jats:sec><jats:title>Background</jats:title><jats:p>We will focus our attention in this article in the ECG changes of classical Prinzmetal angina that occur during occlusive proximal coronary spasm usually in patients with normal or noncritical coronary stenosis.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>The most important ECG change during a focal proximal coronary spasm is in around 50% of cases the appearance of peaked and symmetrical T wave that is followed, if the spasm persist, by progressive ST‐segment elevation that last for a few minutes, and later progressively resolve. The most frequent ECG changes associated with ST‐segment elevation are: (a) increased height of the R wave, (b) coincident S‐wave diminution, (c) upsloping TQ in many cases, and (d) alternans of the elevated ST‐segment and negative T wave deepness in 20% of cases.</jats:p><jats:p>The presence of arrhythmias is very frequent during Prinzmetal angina crises, especially ventricular arrhythmias. The prevalence and importance of ventricular arrhythmias were related to: (a) duration of episodes, (b) degree of ST‐segment elevation, (c) presence of ST–T wave alternans, and (d) the presence of >25% increase of the R wave.</jats:p></jats:sec><jats:sec><jats:title>Conclusions</jats:title><jats:p>The incidence of Prinzmetal angina is much lower then 50 years ago for many reasons including treatment with calcium channel blocks to treat hypertension and ischemia heart disease and the decrease of smoking habits.</jats:p></jats:sec>

収録刊行物

被引用文献 (1)*注記

もっと見る

問題の指摘

ページトップへ