Endocarditis causes: Difference between revisions

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Revision as of 15:51, 10 June 2015

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Ahmed Zaghw, M.D. [2]

Overview

Many types of organism can cause infective endocarditis. These are generally isolated by blood culture, where the patient's blood is sampled under sterile conditions, and any growth is noted and identified. It is therefore important to draw blood cultures before initiating antibiotic therapy. 70% of cases of endocarditis are due to the following three pathogens; Streptococcus viridans, Staphylococci and Enterococcus.

Causes

Life Threatening Causes

Life-threatening causes include conditions which may result in death or permanent disability within 24 hours if left untreated.

Common Causes

Causes by Organ System

Cardiovascular	Asymmetric septal hypertrophy, Calcific aortic stenosis, Cardiac catheterization, Cardiac surgery, Congenital Heart Disease, Mitral valve prolapse, Prosthetic heart valve, Septal defects, Valve disease, Previous bacterial endocarditis, Rheumatic Heart Disease, Sclerotherapy, Cardiac myxoma, Tetralogy of Fallot, Structural heart disease, Patent ductus arteriosus, Coarctation of the aorta, Calcific valvular disease, Bicuspid aortic valves
Chemical / poisoning	No underlying causes
Dental	Dental extractions, Dental implants, Root canals
Dermatologic	Skin infection
Drug Side Effect	IV drug use
Ear Nose Throat	Adenoidectomy
Endocrine	No underlying causes
Environmental	No underlying causes
Gastroenterologic & Genito-Uriner	Biliary tract surgery, Cystoscopy, Endoscopic retrograde cholangiopancreatography, Urethral dilation, Prostatic surgery, Whipple disease, Ulcerative lesions of the colon due to carcinoma, Ulcerative lesions of the colon due to inflammatory bowel disease, Peritoneovenous shunts for ascites
Genetic	Marfan's Syndrome
Hematologic	No underlying causes
Iatrogenic	Urethral dilation, Prostate surgery, Cystoscopy
Infectious Disease	Diphtheria, Staphylococcus epidermidis, Staphylococcus aureus, Streptococcus bovis, Viridans streptococci, Group A streptococcus, Gram negative rods, Enterococuss, Candida, Tuberculosis, Salmonellosis, HIV, Bacteroides, HACEK Group of organism
Musculoskeletal / Ortho	No underlying causes
Neurologic	Ventriculoatrial shunts for hydrocephalus
Nutritional / Metabolic	No underlying causes
Obstetrics & Gynecology	Childbirth
Oncologic	Paraneoplastic syndrome
Opthalmologic	No underlying causes
Overdose / Toxicity	No underlying causes
Psychiatric	No underlying causes
Pulmonary	Respiratory infection, Respiratory tract procedures
Renal / Electrolyte	Chronic hemodialysis
Rheum / Immune / Allergy	Acute rheumatic fever, Systemic lupus erythematosus, Marantic endocarditis, Immune impairment
Trauma	No underlying causes
Miscellaneous	Surgical systemic-pulmonary shunts and conduits

Causes in Alphabetical Order

3

Epidemiological Clues in Etiological Diagnosis of Culture-Negative Endocarditis^[4]


Epidemiological features	Common Microorganism(s)
Injection drug use	S. aureus oxacillin-resistant strains Coagulase-negative staphylococci β-Hemolytic streptococci Fungi Aerobic Gram-negative bacilli, including Pseudomonas aeruginosa
Indwelling cardiovascular medical devices	S. aureus Coagulase-negative staphylococci Fungi Aerobic Gram-negative bacilli Corynebacterium sp
Genitourinary disorders Genitourinary infection Genitourinary manipulation pregnancy Delivery Abortion	Enterococcus sp Group B streptococci (S agalactiae) Listeria monocytogenes Aerobic Gram-negative bacilli Neisseria gonorrhoeae
Chronic skin disorders	S. aureus β-Hemolytic streptococci
Poor dental health, dental procedures	Viridans group streptococci “Nutritionally variant streptococci” Abiotrophia defectiva Granulicatella sp Gemella sp HACEK organisms
Alcoholism, cirrhosis	S pneumoniae β-Hemolytic streptococci Bartonella sp Listeria sp Aeromonas sp
Burn patients	S. aureus Aerobic Gram-negative bacilli, including Pseudomonas aeruginosa Fungi
Diabetes mellitus	S. aureus β-Hemolytic streptococci S pneumoniae
Early ( < 1 y) prosthetic valve placement	Coagulase-negative staphylococci S. aureus Aerobic Gram-negative bacilli Fungi Corynebacterium sp Legionella sp
Late ( > 1 y) prosthetic valve placement	Coagulase-negative staphylococci S. aureus Viridans group streptococci Enterococcus species Fungi Corynebacterium sp
Dog–cat exposure	Bartonella sp Pasteurella sp Capnocytophaga sp
Contact with contaminated milk Contact with infected farm animals	Brucella sp Coxiella burnetii Erysipelothrix sp
Homeless, body lice	Bartonella sp
AIDS	Salmonella sp S pneumoniae S. aureus
Pneumonia, meningitis	S pneumoniae
Solid organ transplant	S. aureus Aspergillus fumigatus Enterococcus sp Candida sp
Gastrointestinal lesions	S bovis Enterococcus sp Clostridium septicum

References

↑ Simon S. B. Chew, David Z. Lubowski (2001). "Clostridium septicum and malignancy". Unknown parameter |source= ignored (help)
↑ http://wordnet.com.au/Products/topics_in_infectious_diseases_Aug01.htm Topics in Infectious Diseases Newsletter, August 2001, Pseudomonas aeruginosa.
↑ Mirabelle Kelly, MD (June 7, 2005). "HACEK Group Infections".
↑ Baddour, LM.; Wilson, WR.; Bayer, AS.; Fowler, VG.; Bolger, AF.; Levison, ME.; Ferrieri, P.; Gerber, MA.; Tani, LY. (2005). "Infective endocarditis: diagnosis, antimicrobial therapy, and management of complications: a statement for healthcare professionals from the Committee on Rheumatic Fever, Endocarditis, and Kawasaki Disease, Council on Cardiovascular Disease in the Young, and the Councils on Clinical Cardiology, Stroke, and Cardiovascular Surgery and Anesthesia, American Heart Association: endorsed by the Infectious Diseases Society of America". Circulation. 111 (23): e394–434. doi:10.1161/CIRCULATIONAHA.105.165564. PMID 15956145. Unknown parameter |month= ignored (help)

Template:WH Template:WS

[1] Simon S. B. Chew, David Z. Lubowski (2001). "Clostridium septicum and malignancy". Unknown parameter |source= ignored (help)

[2] ttp://wordnet.com.au/Products/topics_in_infectious_diseases_Aug01.htm Topics in Infectious Diseases Newsletter, August 2001, Pseudomonas aeruginosa.

[3] Mirabelle Kelly, MD (June 7, 2005). "HACEK Group Infections".

[4] Baddour, LM.; Wilson, WR.; Bayer, AS.; Fowler, VG.; Bolger, AF.; Levison, ME.; Ferrieri, P.; Gerber, MA.; Tani, LY. (2005). "Infective endocarditis: diagnosis, antimicrobial therapy, and management of complications: a statement for healthcare professionals from the Committee on Rheumatic Fever, Endocarditis, and Kawasaki Disease, Council on Cardiovascular Disease in the Young, and the Councils on Clinical Cardiology, Stroke, and Cardiovascular Surgery and Anesthesia, American Heart Association: endorsed by the Infectious Diseases Society of America". Circulation. 111 (23): e394–434. doi:10.1161/CIRCULATIONAHA.105.165564. PMID 15956145. Unknown parameter |month= ignored (help)

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[4]

@@ Line 268: / Line 268: @@
 *[[peritoneovenous shunt|Peritoneovenous shunts for ascites]]
 *[[Polymyalgia rheumatica]]
-*[[Postoperative septicemia]]
+*[[septicemia|Postoperative septicemia]]
 *[[Pregnancy ]]
 *[[Propionibacterium acnes]]
-*[[Prostatic surgery]]
+*[[prostate cancer surgery|Prostatic surgery]]
 *[[Prosthetic heart valves]]
 *[[Pseudomonas alcaligenes]]
@@ Line 280: / Line 280: @@
 *[[Q fever]]
 *[[Rat-bite fever]]
-*[[Respiratory tract procedures]]
+*[[respiratory tract|Respiratory tract procedures]]
 *[[Rheumatic fever]]
 *[[Rheumatic heart disease]]
 *[[Rheumatoid arthritis]]
 *[[Right ventricular outflow tract obstruction]]
-*[[Root canals procedure]]
+*[[root canal|Root canals procedure]]
 *[[Rothia dentocariosa]]
 *[[Salmonellosis ]]
@@ Line 292: / Line 292: @@
 *[[Second degree AV block]]
 *[[Sepsis]]
-*[[Septal defects]]
 *[[Septic arthritis]]
 *[[Septicemia ]]
@@ Line 301: / Line 300: @@
 *[[Staphylococcus epidermidis]]
 *[[Staphylococcus lugdunensis]]
-*[[Streptobacillary rat bite fever]]
+*[[rat-bite fever|Streptobacillary rat-bite fever]]
 *[[Streptobacillus]]
 *[[Streptococcus]]