Electrocardiography and Exercise Stress Test

  • John R. Buscombe
  • Gopinath Gnanasegaran
  • Humayun Bashir

Abstract

In patients with chest pain or suspected heart disease (IHD/CAD), the electrocardiogram (ECG) is one of the principle investigations at the time of presentation. The ECG is a graph obtained when the electrical potentials of an electrical field originating in the heart are recorded at the surface of the body [1–3]. Once the electrical activity is detected it is amplified, displayed on the screen/ monitor and finally recorded on a paper chart [1–3]. In general, the ECG records depolarisation (P wave and QRS complex) and repolarisation (ST segment, T wave and U wave) of the heart. The advantages of the ECG are (a) it is an independent marker of myocardial disease, and (b) it detect haemodynamic, anatomical, electrolyte and drug induced abnormalities [1–3]. Although the ECG is useful in the initial stages of chest pain investigation, it has severe limitations.

Keywords

Ventricular Tachycardia Right Atrium Bruce Protocol Right Bundle Branch Block Junctional Rhythm 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • John R. Buscombe
    • 1
  • Gopinath Gnanasegaran
    • 2
  • Humayun Bashir
    • 2
  1. 1.Department of Nuclear MedicineRoyal Free HospitalLondonUK
  2. 2.Department of Nuclear MedicineGuy’s & St. Thomas’ Hospital NHS Foundation TrustLondonUK

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