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9.3 - Endocarditis Antibiotic Prophylaxis for Cardiac Conditions

The following is a summary of the 2007 American Heart Association revision for recommendations for endocarditis antibiotic prophylaxis.

Endocarditis Antibiotic Prophylaxis IS indicated for the following Cardiac Conditions:

  • Prosthetic cardiac valves or material+ 
  • Previous, relapse, or recurrent infective endocarditis
  • Congenital heart disease (CHD)*
    • Unprepared cyanotic CHD, including palliative shunts and conduits.
    • Completely repaired congenital heart defect with prosthetic material or device, whether placed by surgery or by catheter intervention, during the first six months after the procedure.**
    • Repaired CHD with residual effects at the site or adjacent to the site of a prosthetic patch or prosthetic device (which inhibits endothelialization).
  • Cardiac transplantation recipients who develop cardiac valvulopathy.

+For patients who have a left ventricular assist device (LVAD): a medical consultation is required.
*Except for the conditions listed above, antibiotic prophylaxis is no longer recommended for any other form of CHD.
**Prophylaxis is recommended because endothelialization of prosthetic material occurs within six months after the procedure.

Dental Procedures Where Endocarditis Prophylaxis IS indicated:

All dental procedures which involve manipulation of gingival tissue or the periapical region of teeth or perforation of the oral mucosa*.

(See Table below)

Dental Procedures That Do Not Require Endocarditis Prophylaxis:

*The following procedures and events do not need prophylaxis:

  • Routine anesthetic injections through non-infected tissue
  • Taking dental radiography
  • Placement of removable prosthodontics or orthodontic appliances
  • Adjustment of orthodontic appliances
  • Placement of orthodontic brackets
  • Shedding of primary teeth
  • Bleeding from trauma to the lips or oral mucosa.

 

 

Antibiotic Regimens for Endocarditis Prophylaxis

Regimen: Single Dose 30 - 60 minutes Before Procedure

Situation

Agent

Adults

Children

Oral

Amoxicillin

2 grams

50 milligrams/

kilogram

Unable to take Oral Medication

Ampicillin

OR

Cefazolin or Ceftriaxone§

2 g IM or IV

 

 

1g IM or IV

50 mg/kg IM or IV

 

 

50 mg/ kg IM or IV

Allergic to Penicillin or Ampicillin - Oral

Cephalexin

OR

Azithromycin or

Clarithromycin

OR

Doxycycline

2g

 

500mg

 

 

100mg

50 mg/ kg

 

15 mg/ kg

 

 

<45kg, 2.2 mg/kg

>45kg, 100mg

Allergic to Penicillin or Ampicillin and unable to take oral medication

Cefazolin or Ceftriaxone§

1 g IM or IV

50 mg/ kg IM or IV

Clindamycin is no longer recommended for antibiotic prophylaxis for a dental procedure.

IM: Intramuscular

IV: Intravenous

‡ Or other first- or second-generation oral cephalosporin in equivalent adult or pediatric dosage

§ Cephalosporins should not be used in a person with a history of anaphylaxis, angioedema, urticaria, or ampicillin.

€ Not recommended for children < 8 years old

 

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