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myocardial infarction - Coggle Diagram

- - - - ECG:ST depression or normal ECG
    - - ECG:ST elevation
    - - No ST elevations present
      - ST depression
      - Nonspecific changes may be present.
      - Inverted T wave
      - Loss of R wave
    - - Acute stage: myocardial damage ongoing
        
        Hyperacute T waves ("peaked T wave")
        
        ST elevations in two contiguous leads with reciprocal ST depressions
      - Intermediate stage: myocardial necrosis present
        
        Absence of R wave
        
        T-wave inversions
        
        Pathological Q waves
      - Chronic stage: permanent scarring
        
        Persistent, broad, and deep Q waves
        
        Often incomplete recovery of R waves
        
        Permanent T wave inversion is possible.
  - - - Evaluation of pathological JVP: > 4 cm filling level of the jugular vein above the sternal notch is considered elevated JVP.
        Conditions associated with elevated JVP include right heart failure, fluid overload, tricuspid valve dysfunction, SVC syndrome, pericardial effusion, tamponade, and pulmonary hypertension.
  - - - A S3 can be an important sign of systolic heart failure because, in this setting, the myocardium is usually overly compliant, resulting in a dilated LV
- - - - unstable angina
        
        Occurs even at rest
        
        Unexpected
        
        More severe, lasts longer
        
        Signal a heart attack
      - variant angina (prinzmetal’s angina)
        
        Usually when resting
        
        Severe
        
        Pain radiate to neck, jaw, and arm
        
        Occurs between midnight and early morning
      - stable angina
        
        Develops when heart works harder
        
        Predicted
        
        Short time