lecture 10 cardiac consequences of atheroma Flashcards
(38 cards)
ethnicity predisposed to atheroma
south east asians
risk factors you can change
smoking, diabetes mellitus, obesity, lipids, hypertension, diet, pollution, stress and exercise
risk factors you cant change
family history, gender, age and ethnicity
what forms on the fatty streak of the atheroma
fibrous cap
what is at the core of the atheroma
lipid core
what does the vessel do at first when there is an atheroma
dilates to compensate
what happens when the cap ruptures
lipid are exposed to circulation which initiates thrombotic cascade
where may angina radiate
arms
jaw
neck and teeth
how is stable angina relieved
rest and nitrites
how is stable angina confirmed
stress testing
what does the ECG look like for stable angina
normal at rest
ST depression on walking
unstable angina pathology
myocardial necrosis
symptom of unstable angina
random pain
diagnosis of unstable angina
troponin
ST elevation cause
complete occlusion of a coronary artery
how do you treat complete occlusion of a coronary artery
thrombolysis or angioplasty stent implantation
isoelectric line
flat line on the ECG
first sign of a STEMI on ECG
slight peak in the T wave
what happens after T wave peak in STEMI
ST elevation
loss of R wave
big Q wave
what supplies the inferior wall
right coronary artery
left coronary artery divides into
LAD and the left circumflex
what supples the anterior wall
LAD
what supplies the lateral wall
left circumflex
what coronary dominance do most people have
right
