how do Dental procedures increase the risk of infective endocarditis
streptococcus viridans can be found in the mouth
post valve surgy is a risk factor for ?? by what bacteria
-infective endocarditis
-staphylococcus epidermis
what bacteria causes infective endocarditis in pateints with iv drug use
staphylococcus aureus
what valve is most commonly affected by infective endocarditis
the mitral valve
what are the symptoms associated with bacterial endocarditis
FROM JANE mneumonic
fever
roth spots
osler nodes
murmur
janeway lesions
anemia
nail bed hemorrhage
emboli
what occurs as blood flows over vegetations on the heart valve
murmur
bacteraemia and endocardial insult need to be present in what disease
infective endocarditis
the endocardial insult (e.g. turbulent flow, solid particles, chronic inflammation) allows the bacteria to adhere and proliferate
what organisms are associated with negative blood cultures in infective endocarditis
HACEK - Haemophilus, Aggregatibacter, Cardiobacterium, Eikenella, Kingella
what are the symptoms of severe infective endocarditis
valvular incompetence, resistance, heart failure, embolic events
what is the management in severe infective endocarditis
surgery
valve replacement/repair to remove infection
what is indicitive of myocarditis coinfection
pericarditis with raised troponin
what are typical clinical signs of pericarditis
pericardial friction rub and pleuritic chest pain
symptoms of pneumothorax
sudden SOB
pleuretic chest pain
that develop at rest
clinical features of pneumothorax
reduced tactile fremitus ( breath sounds) on affected side
hypoxia
hyperressonance on affected side
clinical features of tension pneumothorax (emergency)
pleurteic chest pain
breathlessness
tracheal deviation
reduced breath sounds and hyper-resonant on percussion
what is a common cause of iatrongenic pneumothorax
mechanical ventilation
underlying lung disease for secondary pneumothorax
COPD
asthma
cystic fibrosis
lung malignancy
pneumocystis pneumonia
pneumonia
TB
what do patients with constrictive pericarditis present with
signs of right heart failure - fatigue, edema, hepatomegaly, dyspnea
what bacteria causes infective endocarditis associated with IV drug use
staph aureus
what are the risk factors for infective endocarditis
intravascular catheter placement
history of prosthetic heart valve
IV drug sue
what is becks triad
muffled heart sounds
JV distension
hypotension
what is pulsus paradox
decrease in systolic bp of >10mmHg - due to ventricular independence