Cardiovascular Flashcards
Combination of hypercholesterolemia, hypertriglyceridemia, impaired glucose tolerance, diabetes, hyperuricemia, HTN
Metabolic Syndrome X
Exertional angina with normal coronary arteriogram - i.e. chest pain, but no coronary stenosis during cath
Good prognosis - Syndrome X
Why would you use stress EKG?
1) Confirm diagnosis of angina
2) Evaluate response of therapy in patients with documented CAD
3) Identify high-risk CAD patients
When is a stress test considered positive?
Any of the following:
1) ST depression
2) Chest pain
3) Hypotension (onset of heart failure)
4) Arrhythmia
A stress EKG (preferred over pharmacologic) is 75% sensitive if…
Patient can reach 85% of maximum heart rate (= 220-age)
A _________ is preferred by many cardiologists to a stress EKG because it is more sensitive in detecting ischemia, can assess LV size and function, can diagnose valvular disease, and can diagnose CAD in the presence of pre-exisiting EKG abnormalities
Stress Echo
Outcomes measured by stress test
1) EKG changes
2) Symptoms
3) Nuclear imaging and perfusion uptake
4) Echocardiogram
Patients with a positive stress test should undergo _____________
Cardiac catheterization
Pros/Cons of stress myocardial perfusion imaging
Pros - sensitive
Cons - radiation, costly, not helpful in LBBB (false positives believed to be 2/2 delayed septal contraction -> constriction of blood flow during early diastole)
__________ is the most accurate test for detecting CAD
Angiography - revascularization can occur at same time if not severe (Left main or 3-vessel) disease for which CABG is indicated
Smoking cessation cuts CHD risk by _____ after one year
1/2
Vigorous BP control reduces risk of CHD, especially in __________
Diabetics
Standard of care for stable angina
1) Beta-blocker - reduces frequency of coronary events
2) ASA - decreases morbidity, reducing risk of MI
3) Nitrates PRN - effect on prognosis is unknown, mainly for symptom treatment
Side effects of nitrates
1) Headache
2) Orthostatic hypotension
3) Tolerance
4) Syncope
First-line beta blockers in CAD patients (shown to reduce frequency of coronary events)
1) Atenolol
2) Metoprolol