Stepwise interpretation of ECG
ID 175
ID 175 – 58 year old man followed in the Cardiac Clinic because of coronary artery disease
ID 175 – 58 year old man followed in the Cardiac Clinic because of coronary artery disease
Can you see P waves?
ID 175 – Normal sinus rhythm, 88/min.
Yes. There is sinus rhythm, 88/min. Each P is followed by a QRS complex, with a cons...
ID 175 – Normal sinus rhythm, 88/min.
There are no signs of right or left atrial enlargement
ID 175 Normal Sinus rhythm, 88/min.
Left bundle branch block
The QRS duration is prolonged (145 msec.), with a pattern of ...
ID 165 Normal Sinus rhythm, 88/min.
Left bundle branch block
The presence of LBBB may mask the diagnosis of left ventricul...
ID 165 Normal Sinus rhythm, 88/min.
Left bundle branch block
In left bundle branch block the abnormal depolarization is us...
ID 165 Final diagnosis: Normal Sinus rhythm, 88/min.
Left bundle branch block
ID 165 Final diagnosis: Normal Sinus rhythm, 88/min.
Left bundle branch block
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Stepwise interpretation ECG #5

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Stepwise interpretation ECG #5

  1. 1. Stepwise interpretation of ECG ID 175
  2. 2. ID 175 – 58 year old man followed in the Cardiac Clinic because of coronary artery disease
  3. 3. ID 175 – 58 year old man followed in the Cardiac Clinic because of coronary artery disease Can you see P waves?
  4. 4. ID 175 – Normal sinus rhythm, 88/min. Yes. There is sinus rhythm, 88/min. Each P is followed by a QRS complex, with a constant P- R interval (140 msec)
  5. 5. ID 175 – Normal sinus rhythm, 88/min. There are no signs of right or left atrial enlargement
  6. 6. ID 175 Normal Sinus rhythm, 88/min. Left bundle branch block The QRS duration is prolonged (145 msec.), with a pattern of Left Bundle Branch Block (LBBB)
  7. 7. ID 165 Normal Sinus rhythm, 88/min. Left bundle branch block The presence of LBBB may mask the diagnosis of left ventricular hypertrophy and/or myocardial infarction
  8. 8. ID 165 Normal Sinus rhythm, 88/min. Left bundle branch block In left bundle branch block the abnormal depolarization is usually associated with secondary abnormal repolarization (ST depression and negative T in the leads showing a broad R wave)
  9. 9. ID 165 Final diagnosis: Normal Sinus rhythm, 88/min. Left bundle branch block
  10. 10. ID 165 Final diagnosis: Normal Sinus rhythm, 88/min. Left bundle branch block

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