In aortic coarctation

  The basic pathology resulting in ECG changes is left ventricular hypertrophy due to systemic hypertension.

  Some patients have accompanying congenital heart diseases, including aortic valve disease or

      ventricular septal defect (VSD), etc. (
%34).

  Some patients have normal ECG.




ECG abnormalities that may be observed in patients with coarctation of the aorta

  Left ventricular hypertrophy: increased QRS voltage, secondary ST segment or T wave changes.

  Left atrial abnormality.

  First degree AV block.

  Complete or incomplete
right bundle branch block.



References

  Chou's Electrocardiography in Clinical Practice. Adult and Pediatric.

      5th ed. Philadelphia. WB Saunders. 2001.

  Am J Cardiol 1979;43:835.

  J Electrocardiol 1993;26:25-41.





ECG 1. The ECG above, belongs to a 7 years-old boy. When he was 8 months old, he had undergone an operation for
coarctation of the aorta. His recent echocardiography showed left ventricular hypertrophy and 36 mmHg maximal systolic
gradient at the aortic valve. This ECG shows increased QRS voltage, suggesting left ventricular hypertrophy. Incomplete right
bundle branch block is also present. The terminal half of the P waves in lead II have increased amplitude. Also lead C1 has
negative P waves suggesting left atrial abnormality.

Pediatric cardiologist Dr. Mahmut Gokdemir has donated the above ECG to our website.

Click here for a more detailed ECG





ECG 2. The ECG above belongs to a 5 years-old girl. She had undergone ballon angioplasty for coarctation of the aorta and
coarctation is open now. She also has valvular aortic stenosis with a peak systolic gradient of 50 mmHg. The ECG shows signs
of left ventricular hypertrophy.

Pediatric cardiologist Dr. Mahmut Gokdemir has donated the above ECG to our website.

Click here for a more detailed ECG





ECG 3. The ECG above belongs to a 7 years-old boy who had undergone a successful operation at an age of 2 months for
coarctation of the aorta. A recent echocardiogram did not detect any aortic gradient.
No ECG sign of left ventricular hypertrophy exists 7 years after a successful operation.

Pediatric cardiologist Dr. Mahmut Gokdemir has donated the above ECG to our website.

Click here for a more detailed ECG