ischemic heart disease Flashcards
IHD is also known as
CAD
CHD
atherosclerosis
ISCHEMIA caused by
increased demand and decreased supply
myocardial cell injury occurs when
the ischemic process becomes severe
MI occurs when
the ischemia exceeds the hearts threshold for extended period of time
when do most MI’s occur
early morning
during exercise
EKG MI CLASSIFICATION ST SEGMENT ELEVATION or STEMI
70% of MIs
plaque rupture causes complete occlusion of a major coronary artery
EKG MI CLASSIFICATION NON STEMI or NON ST elevation
30% of MI’s
partial occlusion of a major coronary artery
or
complete occlusion of a minor artery
Transmural MI
extends the entire thickness of the heart wall (endo, myo, Epi cardium)
non transmural MI
does not extends the entire thickness of the heart wall
LIMITED TO ENDO OR MYO Cardium
TYPE 1 MI
spontaneous MI
type 2 MI
MI due to supply and demand issue
type 3 MI
associated w/ sudden death
type 4a MI
assoc. w/ percutaneous coronary intervention
type 4b MI
instent thrombosis
type 5 MI
assoc. w/ coronary artery by pass graft
6 key risk factors of ischemic heart disease
- hyperlipidemia
- diabetes mellitus
- tabacco
- male
- family history
IHD causes
- atherosclerosis
- coronary artery thrombosis
- coronary artery spasm causes temporary obstruction
- decreased blood flow
- increased demand due to physical exertion
angina pectoris symptoms
chest pain due to IHD
pressure that radiates to jaw should arm back
stable angina
predictable and manageable
triggers are stress, temps, smoking
relieved by rest
unstable angina symptoms
unexpected chest pain
usually at rest
last longer
occurs at rest
variant angina symptoms
usually younger patients
S-T elevations
rare & occurs at rest or mornings
painful
can be due to coronary artery spasms
NEW MURMUR post MI can be due to
ischemic MR
VSD post MI
potential complications of MI
arrythmias
cardiogenic shock
dresslers syndrome
LV RV failure
MR
pap muscle dysfunction
pericardial effusion
percarditis
pseudo aneurysm
RV infarction
thrombus
true anuerysm
VSD
what is dresslers syndrome
post MI illness that presents with
FEVER, Pericarditis, PERCARDIAL EFFUSION
