Cardiovascular Medicine Book

http://www.fpnotebook.com/

EKG in Pulmonary Embolism

Aka: EKG in Pulmonary Embolism, Electrocardiogram in Pulmonary Embolism, EKG in PE
  1. Epidemiology
    1. Limited diagnostic value in Pulmonary Embolism
    2. Changes have low sensitivity and low Specificity
  2. Findings
    1. Electrocardiogram shows nonspecific changes in 80%
    2. Classic Findings: S1 Q3 T3 (seen in under 20% of cases)
      1. S Wave in Lead I
      2. Q Wave in Lead III
      3. T Wave Inversion in Lead III
    3. Common Findings
      1. Sinus Tachycardia
      2. Right sided strain pattern
        1. Right Bundle Branch Block
        2. Right Axis Deviation
      3. Findings that mimic Myocardial Infarction
        1. ST segment changes
        2. T Wave changes
      4. Atrial Fibrillation (new onset)
  3. References
    1. Rodger (2000) Am J Cardiol 86:807-9

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