cardio corrections Flashcards
what is the most common arrhythmia following a heart attack?
ventricular fibrillation
outline the treatment for stable angina?
GTN reliver spray Lifestyle: stop smoking aspirin 75mg daily and atorvastatin Therapy: beta blocker or Ca channel blocker if contraindicated: isosorbibe mononitrate ivabradine nicorandil if still symptoms: swap to bb or Ca blocker or BB and dihydrapyramidine( Ca B) Then PCI if in 1 vessel and < 65yo or CABG if multi, diabetic and >65yo
when is PCI contraindicated in stable angina?
kidney disease
what are the 3 things that makeup unstable angina?
new onset exertional angina within 1 month
angina at rest
angina of increasing frequency
what murmer may be heard during UA?
mitral regurg
what test distinguishes between NSTEMI and UA?
troponins
what anticoagulant is administered until discharge in ACS?
fondaparinux
what is different in the pathology of UA/ NSTEMI?
UA is ischaemic only
NSTEMI infarction also
what is the GOLD std for angina diagnosis?
CT coronary angiography
what is decubitis angina caused by?
lying flat
what is variant/primentzal angina caused by?
cornonary artery spasm
what extra heart sound might you hear occasionally in angina?
4th heart sound
what type pof infarction is it in a NSTEMI?
subendocardial
what type of infarction is it in a STEMI?
transmural
pathological changes in a STEMI 0-12hrs
cardiac myocytes undergo necrosis and gives oedema
ECG changes STEMI 0-12hrs
ST elevation
pathological changes in a STEMI 12-24hrs
continuing coagulative necrosis and neutrophil infiltration
Ecg changes stemi 12-24hrs
inverted T wave, st elevation and pathological q wave
pathological changes in a STEMI 1st week
neutrophil necrosis
collagen deposits via fibroblasts
ECG changes STEMI after 1st week
pathological q waves
t wave inversion
pathological changes in a STEMI weeks to months
loss of function due to increase collagen deposits leading to scar tissue
ECG changes in a STEMI
pathological q wave
ECG changes possibly seen on a STEMI?
ST elvelation t waves inverted pathological Q waves new LBBB VF, AF or AV block
ECG changes on a NSTEMI?
ST depression