Ischemic Heart Disease Flashcards
IHD is classified into two groups:
Stable Coronary Artery Disease -presenting with CSAP Acute Coronary Syndrome -NSTE-ACS (UA, NSTEMI) -STEMI
Most common cause of SCAD
Atherosclerotic ds of an epicardiap coronary artery
Clinical Manifestations of CSAP
Chest discomfort described as heaviness Crescendo-decrescendo in nature Associated with exertion Radiates to bothto either or both shoulders or arms Relieved with rest or SL nitrogly
What is Typical Angina
Substernal chest discomfort
Provoked by exertion or emotion
Relieved by rest and/or nitrates within minutes
Targets for risk factors (BMI, LDL cholesterol, BP, HbA1c)
BMI < 25 kg/m2
LDL cholesterol < 70mg/dL or >50% reduction from baseline
BP < 140/90 mmHg (for DM <140/85)
HbA1c <6.5-7.0%
Aspirin, ACE-i and statins (AIA) focus on reducing ________ (i.e. reduce ______ and _____ ) and LV dysfuncton
acute thrombotic events
i.e. reduce PLAQUE PROGRESSION and PLAQUE STABILIZATION
These two drugs have been shown to reduce mortality in SCAD with LV dysfuncton
Beta blockers
ACE-i
MOA of Aspirin
Interferes with platelet activation (inhibit COX)
What other antiplatelets can be used for SCAD?
Clopidogrel and vorapaxar
MOA of ACEi and ARBS
reduce LV and vascular hypertrophy, the progression of atherosclerosis, plaque rupture, and thrombosis
MOA of statins (Rosu, ator, sim)
Plaque stabilization and anti-inflam effects
Pharmacologic treatment for anginal relief
Nitrates
Beta blockers
CCB
Nitrates MOA:
___________ with decreased ____________ volume and pressure –> decreased mycoardial wall tension and oxygen requirements
DILATION of ______________
Increased blood flow in __________________
Systemic venodilation; left ventricular
Epicardial coronary vessel
Collateral veins
Beta blockers MOA:
Reduce myocardial oxygen demand by _________, _________, and _________ caused by adrenergic activation
Inhibiting increases in HR
arterial pressure and myocardial contractility
Cornerstone therapy for angina
beta-blockers!!