Infective endocarditis Flashcards Preview

Infectious Diseases > Infective endocarditis > Flashcards

Flashcards in Infective endocarditis Deck (7):

What are the risk factors for endocarditis

1.) Prosthetic heart valve
2.) Injection drug use
3.) Dental procedures that cause BLEEDING
4.) Previous endocarditis
5.) Unrepaired cyanotic heart disease


What symptoms must you look out for to suspect that endocarditis is present

Fever + new-onset murmur


Once you determine that someone has fever and new-onset murmur for endocarditis, what is the next steps

Step 1: Blood cultures
Step 2: If blood cultures positive, proceed to TTE
Step 3: If TTE negative, proceed to TEE

Two positive blood cultures + positive echo = TEE

Note: HACEK organisms not on blood cultures


What would an abnormal echo show for endocarditis

Valvular vegetation or abscess or new partial dehiscence of prosthetic valve


What is the initial treatment for endocarditis

Empiric treatment: Vancomycin and gentamicin in combination for 4-6 weeks

Surgery if anatomic defects such as valve rupture, abscess, prosthetic valves, fungal, and embolic events


What organisms are capable of causing infective endocarditis

1.) Staph aureus
2.) Strep viridans
3.) Strep bovis - do colonoscopy too
4.) Strep epidermis
5.) Enterococci


You can also give prophylactic therapy for endocarditis but it depends on certain cardiac defects and procedures. What situations would you give it

Cardiac defects: Prosthetic valves, unrepaired cyanotic heart disease, previous endocarditis, transplant recipients (not murmurs or pacemakers)

Procedures: Dental procedures that cause bleeding (use amoxicillin), respiratory tract surgery, skin surgery (not scoping, ob/gyn procedures, or dental fillings)