misc Flashcards
where does atrial myxoma occur
left atrium - attcahed to fossa ovalis
who is myxoma most common in
females
presentation myxoma
systemic unwell // clubbing // a fib // mid diastiluc murmur
invx myxoma
echo
inheritence of brugada syndrome
autosomal dominant
who is brugada syndrome most common in
asians
ECG for brugada syndrome
ST elevation > 2mm in V1-3 followed by negative T wave // RBBB
what drug can be given to exaggerate ECG findings for brugada syndrome for diagnosis
flecainide or ajmaline
mx brugada syndrome
implantable defib
what is tamponade
accumulation of pericardial fluid under pressure
triad of tamponade
becks: hypotension + raised JVP + muffled heart sounds
other features tamponade
dyspnoea + tachy // pulsus parodox // absent Y JVP
what is seen on ECG of tamponade
electrical alternans (alternating aplitude of Q wave)
TAMponade = TAMpaX
tamponade = X JVP (only)
mx tamponade
urgent pericardiocentesis
what does pulmonary artery occlusion pressure (POAP) monitering indirectly measure
LA pressure so filling pressure of heart
what is normal POAP
8-12mmHg
what would high POAP indicate
overload
what would low PAOP indicate
hypovolaemia or ARDS
how long after CABG before you can drive
4 weeks
how long after acute coronary syndrome before driving
1 week
what size of aortic anuersym disallows driving
6.5cm
what does the hypothalmus release in response to cold
TSH + ACTH (+ shivering)
temp of mild hypothermia
32-35C
temp severe hypothermia
<32C
RF hypothermia
GA // substance // hypothyroid // homeless // old or young // impaired mental status
physiological signs mild hypothermia
fast RR, fast HR, raised BP
physiological signs severe hypothermia
low RR, low HR, resp depression
ECG hypothermia
when patient warms up: ST elevation + J waves
