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Understanding the Electrocardiogram

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  2. Understanding the Electrocardiogram In Health & Disease
  3. 7.0.0 Tachycardias- Introduction
  4. 7.1.0 Mechanisms of arrhythmias-frame 1

7.1.2 (3)


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The rate of spontaneous diastolic depolarization in the sinus node is increased by sympathetic stimulation and the beta-sympathetic agonists such as epinephrine and isoproterenol. It is also enhanced by removing or blocking parasympathetic stimulation, as accomplished by the administration of atropine. Conversely, the rate of spontaneous diastolic depolarization is decreased by parasympathetic stimulation and by removing or blocking beta-sympathetic stimulation, as accomplished by administration of the beta-sympathetic blocking agents (of which there are quite a few).

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  • Introduction to First Edition
  • 1.0.0 Generation of the ECG
  • 2.0.0 The Normal Electrocardiogram
  • 3.0.0 Inter and intra-ventricular Conduction Disturbances
  • 4.0.0 Ventricular Hypertrophy
  • 5.0.0 ELECTROLYTE ABNORMALITIES, DRUG EFFECTS AND THE LONG QT SYNDROMES
  • 6.0.0 Ischemia and Infarction - Introduction (frame i and ii)
  • 7.0.0 Tachycardias- Introduction
    • 7.1.0 Mechanisms of arrhythmias-frame 1
      • 7.1.1 (2)
      • 7.1.2 (3)
      • 7.1.3 (4)
      • 7.1.4 (5)
      • 7.1.5 (6)
      • 7.1.6 (7)
      • 7.1.7 (8)
      • 7.1.8 (9)
      • 7.1.9 (10)
      • 7.1.10 (11)
      • 7.1.20 (frame 20)
      • 7.1.30 (frame 30)
    • 7.2.0 Narrow Complex Rhythms (frame 38)
    • 7.3.0 Atrial Flutter and Fibrillation (frame 93)
    • 7.4.0 Wide Complex Beats and Rhythms (frame 122)
  • 8.0.0 The Bradycardias frame i-introduction
  • 9.0.0 The ECG of Heart Murmurs-introduction
  • 10.0.0 The Electrocardiogram in the Emergency Department-Introduction
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