BLOOD AND LYMPHATIC INFECTIONS

BLOOD AND LYMPHATIC INFECTIONS - BLOOD AND LYMPHATIC...

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BLOOD AND LYMPHATIC INFECTIONS Bacterial Endocarditis - Subacute, Acute Subacute - most common - Streptococcus veridans Acute - less common - Staphylococcus aureus Subacute bacterial endocarditis - Streptococcus veridans Gram pos. cocci; part of nasal, oral normal flora; opportunist. Virulence: Secretes alpha hemolysins. Usually causes secondary infections URT. Can also cause secondary infection in individuals with damaged heart valves or scarring of endocardium (due to rheumatic fever, surgery, heart attack, etc.), congenital defects of valves. P/E: Oral cavity - break in m.m. due to dental surgery, tooth extractions, tooth abscesses, root canals, cleaning abrasions on gums. Organisms enter bloodstream (requires large #) localize in damaged valves, scar tissue in heart multiply mild inflammation, interferes with function valves, edema heart muscle. Symptoms - very mild, low grade - slight fever, tiredness, heart murmurs. If undiagnosed & untreated congestive heart failure. Identification:
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This note was uploaded on 01/23/2012 for the course MCB MCB2010 taught by Professor Smith during the Fall '09 term at Broward College.

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