karina,
thanks for the post.
Believe it or not, there are not really good scientific studies looking at whether endocarditis prophylaxis works at all in patients at risk for the disease. Given the serious sequelae of the disease, we err on the side of providing prophylaxis. To estimate risk -- we try to identify those at risk with such conditions as valve replacement or abnormal valvular pathology and the insults that can lead to bacteremia. Overall, a superficial cut has a low risk for bacteremia and MVP is on the lower spectrum of valvular risk so prophylaxis could be argued either way.
Over use of antibiotics can lead to resistance. That is why we try to limit their use and when used, administer a full course. It is important to take your medication exactly as directed to limit the risk.
good luck
My Cardiologist stated that the risk of any associated antibiotic resistance developing due to the small doses of antibiotics given for annual dental procedures would be very very very minimal if any.
For several years, my daughter has had multiple life threatening health issues, (triple pneumonia, sepsis due to kidney stones a few times, uterine infection after giving birth, etc). During those times, she had to take antibiotics for weeks on end, even months. If it adds some reassurance, she has never developed antibiotic resistance to this date. I think the key to avoiding resistance is just as CCF-M.D.-bkj stated.
I hope you feel better soon, your not alone in your worries!
Celeste