My heart rate is still fast in the 90's after my mitral valve repair is this normal..will it get slower after some time, only been three weeks.

Yes: You're still in the very early recovery period. Although your heart is repaired, your heart takes time to remodel. Give it 3-6 months. Be sure you're in normal rhythm as atrial fibrillation is very common after mv repair (it would be irregular) and it tends to be faster than normal.

Be patient: And give yourself time. However, the answer is just a phone call away: call your cardiologist! also, if you have UTI and have fever the hr will go up!

Ask your PCP or: Cardiologist if he would consider giving u beta blockers to slow down your heart rate. Cut down on caffeine intake. Take care!

Scar flutter maybe: A hole had to be cut into your atrium repair the valve. It is not unusual to develop an arrhythmia known as scar flutter where the cardiac electrical activity travels around and around the scar in a circle. This can be quite subtle and difficult to diagnose. It really requires an ekg, but an indication you may have this is a heart rate that doesn't vary. It just stays at a given rate all the time.