This is what I have found from a friend. Her bub had the same thing and was fine.

The most common cause of an irregular heart rhythm is when the top part of the heart beats too early (premature atrial contraction). Sometimes this premature beat is transmitted to the bottom part of the heart; other times the communication between the top and bottom part of the heart is interrupted after a premature beat.

An early beat that is transmitted or blocked will cause an irregularity in the heart's rhythm. These premature atrial contractions are very common in the second half of pregnancy and usually don't cause any problems. They may persist after the baby is born, but usually go away by one month of life. Medication isn't necessary.


Hope this helps....

Take care