First-degree AV block in congenital heart disease

Complete heart block commonly develop in patients with


[A] Ebstein anomaly
[B] AV septal defects
[C] D-TGA
[D] cc-TGA



First-degree AV block is commonly seen in patients with congenital heart disease

  1. AV septal defects
  2. Ebstein anomaly
  3. Complete TGA (D-TGA)
  4. Older ASD patient

Complete heart block may develop in patients with

  1. cc-TGA
  2. May develop postoperatively