Cardiac - Infections/inflammation Flashcards
Infective endocarditis bacteria (culture positive)
Strep. viridans Strep. bovis Staph. aureus Staph. epidermidis Enterococci pseudomonas
Infective endocarditis bacteria (culture negative)
HACEK Haemophilus Actinobacterium Eikenella Kingella Coxiella Chlamydia
“Non-infective” causes
SLE
Marantic - associated with rheumatoid arthritis, some cancers (marantikos = wasting away)
IE criteria
Dukes criteria Dx if: - 2 major - 1 major and 3 minor - All 5 minor
Major Dukes criteria
Culture positive
major echo findings
Minor Dukes criteria
Minor echo findings
Minor culture positive
Fever >38
Immune phenomenon - GN, oslers nodes, roth spots
Embolic phenomenon - septic infarcts, splinter haem., janeway lesions
Extra-cardiac features of IE
Fever + rigors night sweats Weight loss Anaemia Splenomegaly clubbing
Cardiac features of IE
new/changed murmur (MR 85%, AR 55%)
AV block
LVF
Management of IE
Acute empiric: Fluclox + gent IV Subacute empiric: Benpen + gent IV Depends upon culture results Consider surgery
Indications for surgery in IE
Heart failure
Emboli
Valve obstruction
Prosthetic valve
Rheumatic fever bacteria
Strep viridans
Criteria for dx rheumatic fever
Jones criteria
Dx when:
2 major criteria
1 major and 2 minor
Major Jones criteria
Pancarditis arthritis subcutaneous nodules erythema marginatum sydenhams chorea
Minor jones criteria
Fever Raised CRP/ESR Arthralgia prolonged PR intervals previous rheumatic fever
Features of rheumatic fever
pancarditis 60% arthritis 75% subcutaneous nodules 2-20% Erythema marginatum 2-10% Sydenhams chorea 10%
Blood tests for RF
ASOT (antistreptolysin titre)
Strep Ag test
Mx of RF
benpen 06-1.2mg IM for 10 days
analgesia
steroids - if CCF or cardiomegaly
haldol or diazepam for chorea
Causes of acute pericarditis
Viral - coxsackie, flu, EBV, HIV
Bacterial - pneumonia, RF, TB, staph
Fungal
Other - MI, dresslers syndrome
Drugs - penecillin, isonazid, procainamide, hydralazine
Other:
Uraemia, RA, SLE, Sarcoid and radiotherapy
Pericardial conditions
Pericarditis (Acute and constrictive)
Pericardial effusion
Tamponade
Features of pericarditis
sharp pain central or retrosternal worse lying down improved by sitting up Fever
ECG signs of pericarditis
saddle shaped ST-elevation +/- PR depression
Mx of pericarditis
analgesia (ibuprofen)
consider steroids
Treat cause
Percardial effusion causes and features
Any cause of pericarditis Features: Dyspnoea raised JVP Ewarts sign - bronchial breathing at left base ?signs of cardiac tamponade
Constrictive pericarditis features
- RHF with raised JVP
- Kussmals sign (NB NOT breathing) - JVP raised and pulsitile on inspiration
- Hepatosplenomegaly
- Acities, oedema