Angina Flashcards
Therapy for chronic stable angina?
most common form of angina, caused by a reduciton of coronary perfusion
Rest, nitro; may add b-blockers/CCB depending on comorbidities
Chronic stable angina tx plan…
A - Aspirin, Anti-Anginal therapy B - Beta Blocker / Blood pressure C - Cigarette smoking cession / Cholestrol control D - Diet / Diabetes E - Education / Exercise
Beneift in angina: reduce myocardial oxgen demand by decreasing catecholamine-induced incraeses in HR, BP, contractility
Beta blockers
BUT AVOID THOSE W/ ISA
Preferred drug for variant/Prinzmetal angina (relieves vasospasms)
CCBs
Least selective of non-DHP CCBs
Useful for migraine/cluster headaches
Verapamil
Less pronounced negative inotropic effects compared to verapmil
Useful for supraventricular tachyarrhytmia
diltiazem
Additive for HTN and symptomatic control
But causes gingival enlargement
Nifedipine
Causes constipation
Needs to be monitored for bradycardia
Verapamil
Nitrate usage in angina?
Maintenance w/ CCB/Beta-blocker
PRN
Prophylaxis before exercise
But tolerance develops quicky (need a nitrate free period)
Nitrates adverse effects
HA
increased ICP
methemoglobinemia
Reflex tachycardia
Nitrate contraindicated?
sildenafil/tadalafil (PDE5 inhibitor)
Patient education stipulations for Nitrates…
Don’t use nitrates older than 6 mos (reduced efficacy)
Sit down and take tab/spray. Relief shoudl occur w/in 5 mins.
If after 3 doses, no relief, seek medical assistance
Acute decompensated HF (primarily warm/wet)
ideal choice in HTN emergency for patients w/ IHD, MI
Preferred agent for preload reduction in pts w/ pulmonary congestion
Nitroglcyerin
Stipulation w/ nitro transdermal patch?
Dosing at 12-14 hours during day, patch off 10-12 hours at night
What’s Bidil?
Isosorbide Dinitrate/HYdralazine - for heart failture
Isosorbide MONOnitrate
Nitrate used for chronic stable angina w beta blockers
Note that this is NOT FDA approved for HF (vs. Isosorbide DInitrate)
Third line for stable angina when other mgmt isn’t effective
Ranolazine (Na channel blocker)
CAN PROLONG QT interval at certain doses! Limit to 500mgx2/day
Form of ACS, between stable angina and MI
Unstable angina
All patietns w/ an NSTEMI, unless absolute contraindicated, get antiplatelet therapy… which includes
aspirin + P2Y12 receptor inhibitor +/- glycoprotein 2b/3a inhibitor
What’s early revascularization/reperfusion therapy?
Determined by TIMI risk score, PCI/stent implantation can performed.
Note that fibrinolytics have no role in NSTEMI (vs usage in STEMI)!
TIMI risk score numbers?
Low: 0-2
Moderate: 3-4
High: 5-7
In a STEMI (ACS) with symptoms less than 12 hrs, what are your first line options?
Morphone, O2, Nitro, ASPIRIN
MONA
Use of Nitro doesn’t preclude other mortailty reducing therapies (beta blocker, ACEI)
Early mgmt of ACS… Beta blocker considerations?
AVOID BETAS W/ ISA
What are the beta blockers with ISA?
to avoid in early mgmt of ACS and post MI
Acebutolol
Pindolol
Penbutolol
Stipulations for ACEI in early mgmt of ACS?
Indicated orally (NO IV) in anterior MI, LVEF < 40,
Consider in all pts post-ACS (unless pregnant, HOTN, bilateral renal arterty stenosis)
Aldosterone antagonist stipulation for early mgmt of ACS?
After giving ACEI/ARB and beta blocker w/ LVEF < 40 AND either symptomatic HF or diabetic
Contraindicated in hyperkalemia, CrCl<30