Subacute bacterial endocarditis: Difference between revisions
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{{Infobox medical condition | |||
| name = Subacute bacterial endocarditis | |||
| image = [[File:Endocarditis_ultrasound.gif|left|thumb|Ultrasound image of endocarditis]] | |||
| caption = Ultrasound image showing vegetations on heart valves | |||
| field = [[Cardiology]] | |||
| synonyms = SBE | |||
| symptoms = [[Fever]], [[fatigue]], [[heart murmur]], [[night sweats]], [[weight loss]], [[anemia]] | |||
| complications = [[Heart failure]], [[stroke]], [[glomerulonephritis]], [[septic emboli]] | |||
| onset = Gradual | |||
| duration = Weeks to months | |||
| causes = [[Bacterial infection]] (commonly [[Streptococcus viridans]], [[Staphylococcus aureus]]) | |||
| risks = [[Congenital heart defect]], [[prosthetic heart valve]], [[intravenous drug use]], [[poor dental hygiene]] | |||
| diagnosis = [[Blood culture]], [[echocardiogram]] | |||
| differential = [[Acute bacterial endocarditis]], [[rheumatic fever]], [[myocarditis]] | |||
| prevention = [[Antibiotic prophylaxis]] in high-risk individuals | |||
| treatment = [[Intravenous antibiotics]], [[surgery]] in severe cases | |||
| prognosis = Variable, depends on timely treatment | |||
| frequency = Rare | |||
}} | |||
[[File:Streptococci.jpg|Streptococci bacteria|thumb|left]] | |||
[[File:Streptomycin2.svg|Streptomycin chemical structure|thumb|left]] | |||
'''Subacute bacterial endocarditis''' (also known as '''SBE''') is a type of [[endocarditis]] (inflammation of the inner layer of the heart). It is caused by a certain type of bacteria that enters the bloodstream and settles in the heart lining, a heart valve or a blood vessel. It is differentiated from acute bacterial endocarditis by its more subacute course. | '''Subacute bacterial endocarditis''' (also known as '''SBE''') is a type of [[endocarditis]] (inflammation of the inner layer of the heart). It is caused by a certain type of bacteria that enters the bloodstream and settles in the heart lining, a heart valve or a blood vessel. It is differentiated from acute bacterial endocarditis by its more subacute course. | ||
== Causes == | == Causes == | ||
SBE is usually caused by a bacterial infection in the bloodstream, most commonly by organisms such as [[Streptococcus viridans]], [[Enterococci]], and the [[HACEK]] group of organisms. The bacteria often originate from the mouth or intestinal tract and are able to enter the bloodstream during certain types of medical or dental procedures. | SBE is usually caused by a bacterial infection in the bloodstream, most commonly by organisms such as [[Streptococcus viridans]], [[Enterococci]], and the [[HACEK]] group of organisms. The bacteria often originate from the mouth or intestinal tract and are able to enter the bloodstream during certain types of medical or dental procedures. | ||
== Symptoms == | == Symptoms == | ||
Symptoms of SBE can vary greatly from person to person, but may include [[fever]], [[chills]], [[sweating]], [[malaise]], [[anorexia]], [[weight loss]], [[muscle pain]], [[joint pain]], [[heart murmur]], and [[petechiae]] (small red or purple spots on the skin, mucous membranes, or conjunctiva). | Symptoms of SBE can vary greatly from person to person, but may include [[fever]], [[chills]], [[sweating]], [[malaise]], [[anorexia]], [[weight loss]], [[muscle pain]], [[joint pain]], [[heart murmur]], and [[petechiae]] (small red or purple spots on the skin, mucous membranes, or conjunctiva). | ||
== Diagnosis == | == Diagnosis == | ||
Diagnosis of SBE is typically made through a combination of clinical symptoms, blood cultures, and an [[echocardiogram]]. The [[Duke criteria]] is often used to aid in the diagnosis. | Diagnosis of SBE is typically made through a combination of clinical symptoms, blood cultures, and an [[echocardiogram]]. The [[Duke criteria]] is often used to aid in the diagnosis. | ||
== Treatment == | == Treatment == | ||
Treatment of SBE typically involves long-term [[antibiotic therapy]], often for 4-6 weeks. In some cases, surgery may be required to repair or replace damaged heart valves. | Treatment of SBE typically involves long-term [[antibiotic therapy]], often for 4-6 weeks. In some cases, surgery may be required to repair or replace damaged heart valves. | ||
== Prognosis == | == Prognosis == | ||
The prognosis of SBE is generally good with appropriate treatment, but the condition can be fatal if left untreated. Complications can include [[heart failure]], [[stroke]], and [[systemic embolism]]. | The prognosis of SBE is generally good with appropriate treatment, but the condition can be fatal if left untreated. Complications can include [[heart failure]], [[stroke]], and [[systemic embolism]]. | ||
== See also == | == See also == | ||
* [[Infective endocarditis]] | * [[Infective endocarditis]] | ||
* [[Acute bacterial endocarditis]] | * [[Acute bacterial endocarditis]] | ||
* [[Nonbacterial thrombotic endocarditis]] | * [[Nonbacterial thrombotic endocarditis]] | ||
== References == | == References == | ||
<references /> | <references /> | ||
[[Category:Cardiology]] | [[Category:Cardiology]] | ||
[[Category:Infectious diseases]] | [[Category:Infectious diseases]] | ||
[[Category:Bacterial diseases]] | [[Category:Bacterial diseases]] | ||
{{stub}} | {{stub}} | ||
Latest revision as of 00:10, 10 April 2025
Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
Founder, WikiMD Wellnesspedia &
W8MD's medical weight loss NYC, sleep center NYC
Philadelphia medical weight loss and Philadelphia sleep clinics
| Subacute bacterial endocarditis | |
|---|---|
| Synonyms | SBE |
| Pronounce | N/A |
| Specialty | N/A |
| Symptoms | Fever, fatigue, heart murmur, night sweats, weight loss, anemia |
| Complications | Heart failure, stroke, glomerulonephritis, septic emboli |
| Onset | Gradual |
| Duration | Weeks to months |
| Types | N/A |
| Causes | Bacterial infection (commonly Streptococcus viridans, Staphylococcus aureus) |
| Risks | Congenital heart defect, prosthetic heart valve, intravenous drug use, poor dental hygiene |
| Diagnosis | Blood culture, echocardiogram |
| Differential diagnosis | Acute bacterial endocarditis, rheumatic fever, myocarditis |
| Prevention | Antibiotic prophylaxis in high-risk individuals |
| Treatment | Intravenous antibiotics, surgery in severe cases |
| Medication | N/A |
| Prognosis | Variable, depends on timely treatment |
| Frequency | Rare |
| Deaths | N/A |
Subacute bacterial endocarditis (also known as SBE) is a type of endocarditis (inflammation of the inner layer of the heart). It is caused by a certain type of bacteria that enters the bloodstream and settles in the heart lining, a heart valve or a blood vessel. It is differentiated from acute bacterial endocarditis by its more subacute course.
Causes[edit]
SBE is usually caused by a bacterial infection in the bloodstream, most commonly by organisms such as Streptococcus viridans, Enterococci, and the HACEK group of organisms. The bacteria often originate from the mouth or intestinal tract and are able to enter the bloodstream during certain types of medical or dental procedures.
Symptoms[edit]
Symptoms of SBE can vary greatly from person to person, but may include fever, chills, sweating, malaise, anorexia, weight loss, muscle pain, joint pain, heart murmur, and petechiae (small red or purple spots on the skin, mucous membranes, or conjunctiva).
Diagnosis[edit]
Diagnosis of SBE is typically made through a combination of clinical symptoms, blood cultures, and an echocardiogram. The Duke criteria is often used to aid in the diagnosis.
Treatment[edit]
Treatment of SBE typically involves long-term antibiotic therapy, often for 4-6 weeks. In some cases, surgery may be required to repair or replace damaged heart valves.
Prognosis[edit]
The prognosis of SBE is generally good with appropriate treatment, but the condition can be fatal if left untreated. Complications can include heart failure, stroke, and systemic embolism.
See also[edit]
References[edit]
<references />
