Has anyone who has had an aortic valve replacement found out that their new valve was not working properly (too much blood being regurgitated) and had to get a TEE procedure so the doctor can discover why this problem happened? This happened in my case. The results from the TEE procedure was, apparently, that my valve had corrected itself in the two months since I learned of the regurgitation problem. My doctor seemed to indicate that this situation is extremely rare - is that the case?