Drugs for Angina Pectoris Flashcards
angina pectoris
chest pain
beneath the sternum and radiating; when O2 supply to heart inefficient; its a symptom; secondary to atherosclerosis of coronary artery
how to address angina pectoris
increase blood flow to the heart and decrease the demand (how angina meds work)
3 types of angina
chronic stable/exertional; variant; unstable
chronic stable/ exertional
with predictable stress or exertion; physical activity; CAD; reduced flow angina no flow MI
variant
occurs during rest, caused by coronary artery vasospasm
unstable (pre infarction)
progressive severity unrelated to activity; indicates impending MI; require immediate emergency intervention
non-drug angina therapy
no overexertion, heavy metals, emotional stress, exposures to cold; quit smoking, reduce BP, reduce hyperlipidemia; an active lifestyle
two main goals of angina drugs
prevention of MI and death, and prevention of myocardial ischemia and angina pain
antianginal drugs
organic nitrates (for all)
beta-blockers (stable and unstable)
CCb (for all)
only symptomatic relief
stable angina treatment steps
nitrates
nitrates and beta-blockers
nitrates BB CCB
coronary artery bypass graft
Anti-Anginal Tx: Nitrates
vasodilation on smooth muscle(venous); given IV transdermal subling buccal and oral(no likely to hepatic 1st pass)
nitroglycerin
isosorbide dinitrate
Isosorbide mononitrate
nitrates for stable angina
decrease oxygen demand and decrease venous return and decrease ventricular filling and preload
nitrates for variant angina
relaxes or prevents spasm in coronary arteries and increase o2 supply
nitroglycerin
admin as soon as pain starts;
termination of anginal attack; ; 3 doses in 10 minutes; short term prior to exertion; close TIGHT
nitroglycerin side effects
headache, hypotension, reflex tachy; do not mix with PDE 5 sildenafil (dilation); lowest dose; sub ling 1-2; no alcohol
protect from heat light moisture