Angina Pectoris Flashcards
What does angina pectoris mean ?
Chest pain or discomfort due to coronary heart disease
When do angina pectoris happen ?
When the heart muscle doesn’t get as much blood as it needs and when the heart arteries is narrow
What is the pathophysiology of angina pectoris ?
It occurs due to the narrowing of coronary arteries which supply blood to the heart muscle. The narrowing is caused by atherosclerosis
Causes of angina pectoris
-Coronary artery disease
-smoking
-hypertension
-high cholesterol
-diabetes
What are the signs and symptoms of angina pectoris ?
-shortness of breath
-nausea
-cold sweat
-pain
-dizziness
What are the medications recommended for angina pectoris ?
-nitroglycerin (helps to relax and widen blood vessels / improving blood flow to the heart)
-beta-blockers (reduce heart rate and blood pressure / decreases the heart’s workload)
-calcium channel blockers (dilate coronary arteries / reduce chest pain)
-aspirin (prevent blood clots / reduce risk of heart attack)
-statins (lower cholesterol levels / reduce risk of plaque buildup in arteries)
What are the examples of the drugs ?
-nitroglycerin (nitrostat glyceryl trinitrate)
-beta-blockers (metaprolol, atenolol)
-calcium channel blockers (amlodipine,dilazepam)
-aspirin (aspirin)
-statins(atrovastatin, simvastatin)
What are the uses of b-blockers ?
Reduce the heart rate, the force of the heart’s contractions and the heart’s oxygen demand
What do calcium-channel blockers do ?
-Inhibit the L-type calcium channels. By blocking the channels, calcium entry into the vascular smooth muscle cells is reduced
-decrease blood pressure and heart’s afterload
Nitrates uses
Release nitric oxide that will increase levels of cGMP within vascular smooth muscle cells