Note that the guidelines on antibiotic prophylaxis have changed. Prophylaxis IS indicated in those with (valve patients highlighted):
Guidelines for Antibiotic Prophylaxis in Valvular Disease [Wilson et. al. Circulation 116: 1736, 2007] Presence of a prosthetic cardiac valve or prosthetic material Previous infective endocarditis Unrepaired cyanotic congenital heart disease (including palliative shunts/conduits) Completely repaired congenital heart defects with prosthetic material or device (surgical or percutaneous), within 6 mo. of the procedure Repaired congenital heart disease with residual defects at the site, or adjacent to the site, of a prosthetic patch or prosthetic device (which inhibit endothelialization) Previous cardiac transplantation with subsequent cardiac valvulopathy (substantial leaflet pathology and regurgitation)
In the updated guidelines, MVP, HOCM, and bicuspid AV do not require prophylaxis [Wilson et. al. Circulation 116: 1736, 2007].
