Lesson 6 Cardi Flashcards
Symptoms of cardiovascular
Chest pain
Peripheral edema
Dizziness
Cyanosis
Cough
Disease of arteries and vein
Thrombus-
thromboembolism 血栓阻塞
HT
Varicose veins 靜脈曲張
Atherosclerosis
Atherosclerotic heart disease
Angina pectoris 心絞痛
Myocardial infarction 心肌梗塞
Aneurysm
Fusiform aneurysm
Saccular aneurysm
Dissecting aneurysm
Coronary artery disease
Caused by?
Symptoms
Partho
Commonly caused by atherosclerosis
Symptoms: angina, myocardial infarction
Partho: fatty substance accumulate on arterial vessel
Narrowing vessel lumen, reduced bloodflow
Risk factors of coronary artery disease
Hypertension
Cigarette smoking
Diabetes mellitus
Obesity
Dyslipidemia
Angina pectoris
Why occurs
Reason of less blood supply
Angina occurs when there is a deficit of oxygen to the heart muscle-) less blood or oxygen flow into myocaridum
Reduced blood supply may due to atherosclerosis
Clinical manifestations of angina pectoris
Symptoms
Feel
Associated with
What triggers
What helps
Chest pain across chest wall, may radiate to neck, jaw, shoulder
Feels. Tight, heavy, burning
Associated with tachycardia, anxiety
What trigger: heavy meal, demand of o2
What helps: rest and medication
Myocardial infarction
Jeh is?
Why
Jeh is heart attack
Rupture of atherosclerotic plaque
Completely block the coronary artery
Necrosis of myocadial muscle
Reduced blood flow( hypotension, increased myocardium oxygen demand)
Myocardial infarction clinical
Treatment
Chest pain across chest wall, may radiate to neck
Not able to relieve by pain
How pain: more than angina, >15min
Treatment: MONA
morphine
Oxygen
Nitroglycerin
Aspirin
Percutaneous coronary intervention
Percutaneous coronary revascularization(支架)
IV thrombolytics( 溶栓劑)
Coronary artery bypass graft
Inflammations
Pericarditis
Outer layer
Myocarditis
Inner layer
Infective endocarditis
MOST COMMON
Bacteria, virus infecting valves
Weakened endocardium
Valvular dyfunction
Valvular stenosis
Narrowed valve
Valvular incompetence
Unable to close the valve completely
Heart failure
Cardiac dyfunction
Fail to reserve normal as stress sustained
1. Cannot stretch for filling
2. Cannot pump blood out
Left side failure: pulmonary congestion
Right side: systemic congestion
LIFELONG
Arrythmias
How?
Uneven heart rhythm
Missed or rapid beat
May caused by abnormal rate of impulse generation/
Impulse conduction-)bradycardia, tachycardia
Atrial fibrillation
Irregularly high beat
Ventricular fibrillation
Cannot pump blood
Drugs
Vasodilator
Antihypotensive
Beta-blocker
Calcium channel blocker
Vasodilator:
Nitroglycerin, long act isosorbide
Reduce heart workload
Antihypertensive
Calcium blocker, ACE inhibitor
(Enalapril)
Lower blood pressure
Beta blocker
Atenolol
Block signal workload from increasing heart workload
Calcium channel blocker:
Dilitiazem, nifedipine, amlodipine
To reduce cardiac contractility
Cardiac glycoside
Digoxin
Increase cardiac contractility
Diuretic
Lasix
Remove excessive sodium and water
Anticoagulant
Wafarin
Depress liver generate coagulant factor
Cholesterol+lipid lower
Simvastrin, atorvastrin
Reduce cholesterol synthesis