Periodic heavy sighs only when I breath in.

I had a heart monitor put on for 24 hours and it showed my heart going to fast for the blood to be able to pump back into my heart? What is the Cardioligist gonna have me do.?

[CCFCardio MD2]

This is a difficult question to answer with limited information.  It depends on how fast your heart was going and what type of rhythm it was in.  Often times your cardiologist will recommend a medication to help keep your heart in a normal, slower rhythm to help your heart with proper filling and pumping.  I would stay in close contact with your cardiologist to come up with a plan.  Best of luck.