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cardiovascular disease
Leading cause of death in US accounting for nearly half of all deaths
cardiovascular disease
The collective term for various forms of diseases of the heart and blood vessels
Tobacco Use
High blood pressure
High Levels of cholesterol
Physical Inactivity
Obesity
Diabetes
MAJOR RISK FACTORS THAT CAN BE CHANGED (CVD)
Tobacco Use
twice
triples
People who smoke a pack of cigarettes a day have ____ the risk of heart attack; smoking 2 or more packs a day _____ the risk
Women who smoke heavily and use oral contraceptives
up to 32 times more likely to have a heart attack and 20 times to have a stroke
32
20
Women who smoke heavily and use oral contraceptives are up to ___ times more likely to have a heart attack and ___ times to have a stroke
LDL
blood fat that transports cholesterol from the liver to organs and tissues; excess is deposited on artery walls, where it can eventually block the flow of blood to the heart and brain
excess is deposited on artery walls, where it can eventually block the flow of blood to the heart and brain
excess cholesterol
HDL
blood fat that helps transport cholesterol out of the arteries an
LDL - bad cholesterol
HDL - good cholesterol
LDL -
HDL -
The more physical activity you engage in, the more cardiovascular benefit you derive.
TAKE NOTE!
2-3X
The risk of death from CVD is ____ higher in obese people (BMI ā„30) than it is in lean people (BMI 18.5-24.9)
greater than or equal to 30
BMI of obese people
18.5-24.9
BMI of lean people
30%
for every 5 unit increment of BMI, a person's risk of death from Coronary heart disease increases by ___?
men - doubles
women - triples
Having diabetes ____ the risk of CVD for men and ___ the risk for women
People with prediabetes also face a significant increased risk of CVD
TAKE NOTE!
1. High Triglycerides Levels
2. Psychological and Social Factors
- A. stress
- B. Chronic hostility and anger
- C. Supressing Psychological distress
- D. Depression and anxiety
- E. Social Isolation
- F. low economic status
3. Alcohol and drugs
Contributing Risk factors that can be changed
1. Heredity
2. Aging
3. Being Male 4. Ethnicity
Major risk factors that can't be changed
Coronary artery disease (CAD)
It causes atherosclerosis, or hardening, of the arteries. It also causes angina (chest pain) and heart attacks.
Atherosclerosis
occurs when the normal lining of the arteries deteriorates, the walls of arteries thicken, and deposits of fat and plaque build up, causing narrowing (or even blockage) of the arteries
Atherosclerosis
a type of arteriosclerosis (thickening and hardening of the arteries)
Plaque
results from deposits of fat, cholesterol, and other substances
Atherosclerosis
Blood clots form, thus blocking the blood flow. This can lead to heart attacks and strokes.
-High blood cholesterol
- Smoking
-High blood pressure
- Diabetes
- Obesity
- Not physically active
Risk factors for atherosclerosis include:
Angina
a pain or discomfort in the chest that happens when some part of the heart does not receive enough blood
Angina
It often feels like a pressing or squeezing pain, generally in the chest under the breastbone, but sometimes in the shoulders, arms, neck, jaw, or back.
physical exertion
The most common trigger for angina
- Emotional stress
- Extreme cold or heat
- Alcohol
- Smoking
Other triggers of angina include:
angina
seldom causes permanent damage to the heart, unlike a heart attac
heart attack
happens when the blood flow to a part of the heart is suddenly and permanently cut off
stroke
Lack of blood flow to the brain from a blood clot, or bleeding in the brain from a broken blood vessel. Without a good blood supply, brain cells cannot get enough oxygen and begin to die.
transient ischemic attack (TIA)
mini-stroke
TIA
Where no damage is done to the brain. Even though they do no damage, TIAs are serious and can put you at greater risk of having a full stroke.
⢠Uncontrolled high blood pressure
⢠Smoking
⢠Diabetes
Risk factors for stroke include:
There are ways to measure blood pressure and several medications to lower it if it is too high.
TAKE NOTE
blood pressure reading
measures the force of blood pumped from the heart against the walls of your blood vessels
Blood Pressure
It is recorded as two numbers: a top number of systolic pressure (the pressure of blood in the vessels as the heart beats), and a bottom number of diastolic pressure (the pressure of the blood between heartbeats, when the heart rests).
systolic pressure
the pressure of blood in the vessels as the heart beats
diastolic pressure
the pressure of the blood between heartbeats, when the heart rests
Most heart attacks are the result of coronary heart disease, a condition that clogs coronary arteries with fatty, calcified plaques.
TAKE NOTE!
coronary heart disease
a condition that clogs coronary arteries with fatty, calcified plaque
In the early 1980s, researchers confirmed that the immediate cause of nearly all heart attacks is not the obstructive plaque itself. Instead, it's the sudden formation of a blood clot on top of plaque that cuts off blood flow in an already narrowed blood vessel.
TAKE NOTE!
- high blood pressure, high cholesterol, obesity, smoking, diabetes and a sedentary lifestyle
- stress
- exertion
- excitement
- family history
Major risk factors of heart attack
High levels of estrogen are thought to protect premenopausal women fairly well, but the risk of heart attack increases significantly after menopause.
TAKE NOTE!
heart attack
a heart condition that is a medical emergency
heart attack
It must be quickly addressed by conventional medicine. At this point, alternative medicine cannot compete with standard drug therapy and surgical treatments
standard drug therapy / conventional medicine - during the heart attack
alternative medicine - may at other times, though, make valuable contributions to heart attack prevention and recovery
medicine for heart attack
Heart attack victims are usually hospitalized in special coronary care units (CCU) for at least 36 hours.
TAKE NOTE!
⢠A painkiller such as MORPHINE
ā¢Vasodilators such as NITROGLYCERINE to expand blood vessels
⢠BETA-ADREGERNIC BLOCKER DRUGS to calm the heart
⢠ASPIRIN to reduce clotting activity
Standard drug therapy for heart attack includes:
cardiologist, or heart specialist
They rely on various tests to diagnose a heart attack. These tests can also identify sites of blockage as well as tissue damage.
Monitoring the heart's electrical activity (ECG) together with blood tests
provides data for an initial assessment of the patient's condition with heart attack
angiograms and radioisotope scans
Images of the heart and coronary arteries done with these, they locate specific areas of damage and blockage.
echocardiograms
Ultrasound tests that evaluate the heart's function
60-100 times per minute
heartbeat per minute
arrhythmia or dysrhythmia
An irregular or abnormal heartbeat which can involve a change in the rhythm, producing an uneven heartbeat, or a change in the rate, causing a very slow or very fast heartbeat.
heart failure
It means the heart does not pump as well as it should.
heart failure
This then leads to salt and water retention, causing swelling and shortness of breath. The swelling and shortness of breath are its primary symptoms.
swelling and shortness of breath
primary symptoms of heart failure
heart failure
a major health problem in the U.S., affecting nearly 5 million Americans.
heart failure
It is the leading cause of hospitalization in people older than 65.
Congestive heart failure
term often used to describe heart failure.
Congestion, or the buildup of fluid
Congestion, or the buildup of fluid, is only one symptom of heart failure and does not occur in all people who have heart failure.
systolic and diastolic
NOTE: Within each category of heart failure, the symptoms vary from person to person.
There are two main categories of heart failure
heart valves
lie at the exit of each of your four heart chambers and maintain one-way blood-flow through your heart.
Mitral valve prolapse (MVP)
One or both valve leaflets protrude into the left atrium
MVP syndrome
the term used when the anatomic prolapse is accompanied by signs and symptoms unrelated to the valvular abnormality
Aortic insufficiency
Blood flows back into the left ventricle during diastole, causing fluid overload in the ventricle , which dilates and hypertrophies.
Left ventricular failure and pulmonary edema
Aortic insufficiency results in
Mitral stenosis
Narrowing of the valve by valvular abnormalities, fibrosis or calcification obstructs blood flow from the left atrium to the left ventricle
Mitral stenosis
Results from rheumatic fever
Most common in females
Mitral Stenosis is most common in?
Aortic stenosis
Increased left ventricular pressure tries to overcome the resistance of the narrowed valvular opening . The added workload increases the demand for oxygen, and diminished cardiac output causes poor coronary artery perfusion, ischemia of the left ventricle and the left ventricular failure
Pulmonary insufficiency
Blood ejected into the pulmonary artery during systole flows back into the right ventricle during diastole, causing fluid overload in the ventricle, ventricular hypertrophy and finally ventricular failure
Pulmonic stenosis
Obstructed right ventricular outflow causes right ventricular hypertrophy, eventually resulting in right ventricular failure
Tricuspid Insufficiency
Blood flows back into the right atrium during systole, decreasing blood flow to the lungs and left side of the heart
Tricuspid Insufficiency
Cardiac output also lessens
Fluid overload in the right side of the heart eventually lead to right ventricular failure
TAKE NOTE!
Tricuspid stenosis
Obstructed blood flow from the right atrium to the right ventricle causes the right atrium to dilate and hypertrophy
Tricuspid stenosis
This leads to right ventricular failure and increases pressure in the vena cava
Cardiomyopathy, Dilated
Resulting from extensive damage myocardial muscle fibers, it interferes with myocardial metabolism and grossly dilates all chambers of the heart
Cardiomyopathy, Dilated
This gives the heart a globular appearance.
intractable heart failure,
arrhythmias and emboli
Cardiomyopathy, Dilated leads to
Cardiomyopathy, Dilated
Can be due to viruses, endocrine and electrolyte disorders and nutritional deficiencies
Cardiomyopathy, hypertrophy
Characterized by disproportionate, assymmetric thickening of the interventricular septum in relation to the free wall of the left ventricle.
Cardiomyopathy, hypertrophic
Cardiac output may be low, normal or high depending on whether stenosis is obstructive or nonobstructive
Cardiomyopathy, hypertrophic
May be inherited or idiopathic
Cardiomyopathy, restrictive
Characterized by restrictive ventricular filling and endocardial fibrosis and thickening.
Cardiomyopathy, restrictive
⢠If severe, it's irreversible
⢠Unknown cause
Pericarditis
- Inflammation of the pericardium, the fibroserous sac that envelops, supports and protects the heart.
⢠Can be acute or chronic
- Bacterial, fungal, viral or infection
parasitic
- High dose radiation to the chest
- Neoplasms
- Uremia
- Hypersensitivity or autoimmune disease such as rheumatic fever, LE and rheumatoid arthritis
- Postcardiac injury such as MI, trauma or surgery
- Drugs such as hydralazine or procainamide
- Idiopathic factors
Common causes of pericarditis are:
Marfan syndrome
Rare inherited, degenerative generalized disease of the connective tissue that causes ocular, skeletal and cardiovascular anomalies
Vasculitis
- characterized by inflammation and necrosis (death) of blood vessels
- Can occur at any age
Vasculitis
Maybe a primary disorder or secondary to other disorders such as LE and rheumatoid arthritis
Hypertrophic cardiomyopathy (HCM)
- Inherited condition that causes the heart muscle to become hypertrophic, primarily in the septum, which is the area between the two ventricles
- With high risk of sudden death
-Should not be engaged in competitive sport
Rheumatic Heart Disease
due to untreated streptococcal throat infection, damaging the heart muscles and heart valves
⢠1. Quit smoking.
⢠2. Improve cholesterol levels.
⢠3. Control high blood pressure.
⢠4. Get active.
⢠5. Follow a heart-healthy diet.
⢠6. Get to a healthy weight.
⢠7. Control diabetes.
⢠8. Manage stress and anger.
Taking action will improve your health -- and, possibly, save your life. Get going on these 8 ways to get on track.
- Total cholesterol level over 200
-HDL ("good") cholesterol level under
40
- LDL ("bad") cholesterol level over 160
You're more likely to get heart disease if you have:
Normal blood pressure - 120/80
High blood pressure - 140/90
Normal blood pressure -
High blood pressure -
High blood pressure
often called a "silent" killer because it usually has no signs or symptoms