The majority of people who have heart murmurs have benign heart murmurs and they cause them no problems and no symptoms. It is worthwhile to get follow-up echocardiograms/ultrasounds periodically to make sure it stays the same. Every 3-5 years is sufficient if you have a benign heart murmur (most typically it is MVP= Mitral Valve Prolapse).
I have two slightly leaky valves (mitral and tricuspid) and have not had any problems from them in 20+ years.
I too have been taken off the pre-dose of antibiotics at the dentist due to different recommendations which I personally am quite happy about and hope it stays that way!
I have two slightly leaky valves (mitral and tricuspid) and have not had any problems from them in 20+ years.