Cardiovascular Disease Flashcards
Atherosclerosis - characteristics
lipid laden plaques in moderate and large arteries
thickening and narrowing of intimal layer of blood vessel wall from accumulation
Acute coronary syndrome (ACS) - Coronary artery disease - characteristics
involves spectrum of clinical entities
Imbalance of myocardial oxygen supply and demand
Acute coronary syndrome (ACS) - Coronary artery disease - Angina pectoris
Chest pain or pressure due to ischemia
Can be accompanied by Levine’s sign (pt clench fist over sternum)
Acute coronary syndrome (ACS) - Coronary artery disease - Angina pectoris - 3 types of angina
Stable
Unstable
Variant (Prinzmetal’s)
Acute coronary syndrome (ACS) - Coronary artery disease - Angina pectoris - Stable angina
Classic exertional angina occurring during exercise or activity
Relieved with rest or nitroglycerin
Acute coronary syndrome (ACS) - Coronary artery disease - Angina pectoris - Unstable angina
insufficiency at any time without precipitating factors
Acute coronary syndrome (ACS) - Coronary artery disease - Angina pectoris - Variant (Prinzmetal)
Caused by vasospasm of coronary arteries in the absence of occlusive disease
responds well to nitro or Ca channel blocker
Acute coronary syndrome (ACS) - Coronary artery disease - Myocardial infarction
Prolonged ischemia, injury, and death of an area of the myocardium caused by occlusion of one or more of the coronary arteries
Acute coronary syndrome (ACS) - Coronary artery disease - MI - zones of infarction - Zone of infarction
consists of necrotic, noncontractile tissue, electrically inert, on ECG will see pathological Q wave
Acute coronary syndrome (ACS) - Coronary artery disease - MI - zones - zone of injury
Area immediately adjacent to central zone
tissue is noncontractile, cells unstable
on ECG will see elevated ST
Acute coronary syndrome (ACS) - Coronary artery disease - MI - zones - zone of ischemia
outer area, cells undergoing metabolic changes
on ECG see T wave inversion
Acute coronary syndrome (ACS) - Coronary artery disease - MI - infarction sites - Transmural
full thickness of myocardium
Often a STEMI or Q wave MI
Acute coronary syndrome (ACS) - Coronary artery disease - MI - infarction sites - Nontransmural
subenchocardial, subepicardial, intramural infarctions
NSTEMI or non Q wave MI
Acute coronary syndrome (ACS) - Coronary artery disease - Heart failure
clinical syndrome where the heart is unable to maintain adequate circulation of blood to meet metabolic needs of body
Acute coronary syndrome (ACS) - Coronary artery disease - heart failure - types - Left sided
AKA CHF
characterized by pulmonary congestion, low CO due to back up of blood from LV to LA and lungs