Hey, I'm a 31 male who recently underwent a mitral valve replacement on June 7th, after two successful repairs once at 6, and other at 20, they decided it was time to replace it. I went with the on x mechanical valve. After my surgery fluid was around my lungs pretty bad so I was in the hospital a week, and my heart rate was around 105-115 depending on my pain and anxiety levels, then after my one week at home I saw my GP, and was told to go to the er because my heart rate was 135 after getting in her office, but that's what it normally is after light walking. My cardiologist saw me in the hospital, echo is great, ekg they say is fine. They say my tachycardia is from the healing process, and should go away with time. I'm wondering if anyone else dealt with tachycardia like this and how long it lasted before it subsided? Ok thanks.