Cardiovascular health
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CARDIOVASCULAR HEALTH. Causes of Death. Top three causes of death Heart disease Someone suffers a coronary event every 29 seconds in the US Someone dies from a coronary event every minute Cancer Infectious disease. Cost to Society. 274 billion per year on cardiovascular disease

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CARDIOVASCULAR HEALTH

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Cardiovascular health

CARDIOVASCULAR HEALTH


Causes of death

Causes of Death

Top three causes of death

  • Heart disease

    • Someone suffers a coronary event every 29 seconds in the US

    • Someone dies from a coronary event every minute

  • Cancer

  • Infectious disease


Cost to society

Cost to Society

  • 274 billion per year on cardiovascular disease

  • 99 billion per year on alcohol related disease

  • 72 billion on smoking related diseases

  • 67 billion spend on drug abuse


Physiology of the heart

Physiology of the Heart

  • Four chambered pump

  • Size of a fist

  • Weighs about 1 pound

  • Creates pressure to circulate blood throughout the body

  • Located between the lungs, left of center in the thorax


Blood flow through the heart

Blood flow through the heart

  • Deoxygenated blood from the inferior and superior vena cava empties into the right atrium

  • Continues past the tricuspid valve into the right ventricle

  • Leaves the right ventricle and heads toward the lungs to pick up oxygen and returns to the heart as oxygenated blood


Blood flow through the heart1

Blood flow through the heart

  • Oxygenated blood returns to the left side of the heart entering the left atrium

  • Flows past the mitral valve into the left ventricle

  • Leaves the left ventricle through the aorta out to the rest of the body


Important features of the heart

Important features of the heart

  • Valves ensure that the blood flows in one direction

  • Left ventricle is more muscular then the other chambers

  • Septum divides the heart in half


Electrical stimulation of the heart

Electrical Stimulation of the Heart

  • Signal sends impulses from the brain to the heart

  • SA node (pacemaker of the heart) creates an electrical impulse that contracts the atria

  • AV node picks up the signal and sends it on to the ventricles

  • EKG picks up the electrical signals from the heart and is able to detect abnormalities in the conduction


Function of the blood

Function of the blood

  • Transportation of nutrients, oxygen, waste products and hormones

  • Regulation of water content for cells

  • Regulation of body temperature

  • Buffers to maintain pH level

  • Clotting capabilities

  • Protection against pathogens by circulating antibodies

  • Average person has 6 quarts of blood


The vascular system

The Vascular System

  • Refers to the blood vessels

  • Arteries carry blood away from the heart

  • Veins carry blood back into the heart

  • Coronary arteries carry blood to the heart

  • Carotid arteries carry blood to the brain

  • Iliac and femoral arteries carry blood to the abdomen and legs


Permanent risk factors for heart disease

Permanent Risk Factors for Heart Disease

  • Age – as you age, the greater the risk

  • Gender – men are more at risk then premenopausal women

  • Ethnicity –African Americans more at risk due to the increased rates of high blood pressure

  • Heredity – if you have a family history of CVD your risk is greater


Cardiovascular risk factors that can be changed

Cardiovascular Risk Factors That Can Be Changed

  • High cholesterol

  • High blood pressure

  • Inflammation

  • Physical inactivity

  • Smoking

  • Diabetes

  • Obesity

  • Diet

  • Periodontal disease


Cholesterol

Cholesterol

  • Cholesterol manufactured in the liver and small intestines

  • Needed for the production of sex hormones, cell membranes, bile salts and nerve fibers

  • Cholesterol attaches itself to lipoproteins


Cholesterol1

Cholesterol

  • Two types of lipoproteins

    • LDL-low density lipids

      • Bad cholesterol

      • Average levels

        • Less the 100 is optimal

        • 100-129 is near optimal

        • 130 or higher is dangerous

        • New study indicates even lower levels of LDL may be necessary ie; 60-70

      • Carries cholesterol to coronary arteries

      • Agitate arterial walls and form lesions that allow plaque buildup


Cholesterol2

Cholesterol

  • HDL-high density lipids

    • Good cholesterol

    • Average level

      • Men – 40-50

      • Women – 50-60

    • Carries cholesterol away from arteries to the liver

    • Offer protection against heart disease

    • Pick up LDL and bring them to the liver for removal


Cholesterol3

Cholesterol

  • Total cholesterol above 200 is high

    • Combines HDL and LDL

  • HDL above 60 is healthy, below 40 is dangerous

  • LDL below 130 is healthy , above 190 is dangerous


Cholesterol reduction

Cholesterol Reduction

  • Exercise

    • Single most effective way to increase HDLs

  • Weight reduction

  • Diet

    • Limit saturated fats

    • Increase your intake of fatty fish

    • High fiber diet

  • Smoking

  • Moderate alcohol intake

    • Phenols in red wine

  • Genetic predisposition


Blood pressure

Blood Pressure

  • Pressure exerted on the walls of the arteries

  • Systolic

    • Highest pressure

    • Pressure exerted when left ventricle is contracting

  • Diastolic

    • Lowest pressure

    • Left ventricle is filling with blood

  • Normal range

    • 120/80

    • 120/80 to 139/89 now is called pre-hypertension


Hypertension high blood pressure

Hypertension (High Blood Pressure)

  • Decreased elasticity of blood vessels makes is more difficult for the heart to pump the blood and increases the blood pressure

  • Higher incidence in non-whites

  • 65 million Americans have hypertension

    • Approx 35% of the population


Hypertension

Hypertension

  • Signs and symptoms

    • No signs initially, until the pressure becomes very high

    • Headache

    • Irritability

    • Dizziness

    • Blurred vision


Hypertension1

Hypertension

  • Medical problems associated with high blood pressure

    • Stroke

    • Coronary artery disease

    • Kidney failure

    • Blindness

    • Dementia

    • Heart failure


Hypertension2

Hypertension

  • Known as the “silent killer”

  • Symptoms only appear when the blood pressure is dangerously high

  • You must take you medications even if you feel fine


Hypertension3

Hypertension

  • Medications

    • Diuretics - to remove fluid

    • Vasodilators – to enlarge the size of the blood vessels

  • Side effects

    • Impotence

    • Fatigue

    • Muscle weakness


Hypertension4

Hypertension

  • Blood pressure reduction

    • Weight reduction

    • Exercise

    • Reduce salt intake

    • Diet high in fruits and vegetables


Inflammation of blood vessels

Inflammation of Blood Vessels

  • Inflammation in the vessels causes the plaque to break free

  • May contribute to heart attacks

  • Measured by C reactive proteins (CRP)

  • Average reading of CRP is 1.5

  • High levels come from chronic infections (gum disease), sedentary lifestyle, HTN

  • Normally produced by the body to fight infections and promote healing


Physical inactivity

Physical Inactivity

  • Exercise is the single most effective way to increase your HDL levels

  • Exercise decreases your blood pressure

  • Exercise contributes to weight reduction

  • Exercise strengthens your heart muscle and increases the efficiency

  • Exercise can increase your longevity

    • Walked 30 min/day for five days/week live 1.3-1.5 years longer

    • Running 30 min/day (or equivalent) live 3.5-3.7 years longer


Smoking

Smoking

  • The most dangerous risk factor for heart disease

  • Increases your heart rate and constricts your blood vessels

  • Doubles the risk of heart attack for a person who smokes one pack per day


Diabetes

Diabetes

  • More then 80% of people with diabetes die from cardiovascular disease

  • If not well controlled can contribute to high cholesterol levels

  • Can be managed through diet, exercise and medications


Obesity

Obesity

  • Increases the strain on the heart

  • Increases blood pressure

  • May trigger diabetes

  • Weight loss increases your HDL and lowers your LDL

  • Weight gain of 11-18 lbs in adult life had 25% increase in risk of MI, increase over 25 lbs increased risk of MI by 200-300%


Cardiovascular health

Diet

  • Limit saturated fats

    • Beef, ham, pork

    • Dairy products

    • Palm and coconut oils

  • Use more polyunsaturated fats

    • Corn oil

    • Safflower oil


Cardiovascular health

Diet

  • Increase fatty fish such as salmon, mackerel

    • High in omega 3 fatty acids

  • High fiber diet

    • Men who ate 29 gms of fiber/day (one cup bran cereal) 36% decreased risk of MI

  • Keep fat to 30% of diet

    • Americans eat 46% fat in diet


Periodontal disease

Periodontal Disease

  • Chronic infections from gum disease increase the CRP levels

  • Toxins and bacteria enter your bloodstream causing inflammation of the vessels


Types of heart disease

Types Of Heart Disease

  • CAD – coronary artery disease

  • Hypertension

  • Stroke

  • Congenital heart disease

  • Congestive heart disease

  • Rheumatic heart disease


Coronary artery disease

Coronary Artery Disease

  • Atherosclerosis – hardening of the arteries

  • Fatty deposits build up inside the vessels that slow the flow of blood or completely occlude it


Coronary artery disease1

Coronary Artery Disease

  • Angina

    • Chest pain

    • Decreased blood supply to coronary arteries

    • Nitroglycerin


Myocardial infarction heart attack

Myocardial InfarctionHeart Attack

  • MIs are getting smaller secondary to better medications and active lifestyles

  • Men are 20% more likely to have MI on birthday

  • Higher incidence in winter versus summer

  • More likely on Monday

  • more likely to be fatal at night

  • Four times more likely if you are depressed

  • Weekend warriors at greater risk


Myocardial infarction

Myocardial Infarction

  • Women and heart attacks

    • First MI 10-20 years later then men, but 70% more likely to die

    • Women take one hour longer to get to the ED

    • Women do not exhibit classic symptoms of MI, tends to be a spasm, not a blockage of the coronary arteries

    • 30% less likely to get the proper medications


Myocardial infarction1

Myocardial Infarction

  • Premenopausal women usually protected but 9000 women younger then 45 die each yr

  • More women die from heart attacks and strokes then breast cancer, 500,000 women vs 40,000/yr

  • Women on HRT have an increased chance of MI/stroke/blood clots

    • Doubles risk of MI during first year


Myocardial infarction heart attack1

Myocardial InfarctionHeart Attack

  • Heart Attack or Myocardial Infarction (MI)

    • Death of the cardiac muscle secondary to a lack of oxygen

    • Cause is a blockage of the coronary arteries by a floating piece of plaque or eventual closure due to cholesterol

    • Extent of damage depends on the size of the artery affected


Coronary artery disease2

Coronary Artery Disease

  • Heart Attack Signs and Symptoms

    • Crushing substernal chest pain

    • Sweating, short of breath

    • Pain radiating to the jaw or left arm

    • Indigestion

  • Get the person to the hospital, time is muscle

  • Ask if they use NTG

  • CPR

  • Ventricular fibrillation


Heart attack

Heart Attack


Heart attack1

Heart Attack


Ventricular fibrillation

Ventricular Fibrillation


Ventricular fibrillation1

Ventricular Fibrillation


Coronary artery disease3

Coronary Artery Disease

  • Hospital Care

    • Anticoagulants (blood thinner)

      • aspirin

    • TPA – tissue plasminogen activator

    • Angioplasty

    • Bypass surgery


Angioplasty

Angioplasty


Stent placement

Stent Placement


Bypass surgery

Bypass Surgery


New areas of research

New Areas of Research

  • Synthetic form of HDL

    • Found to reverse plaque build up in the arteries

  • Genetic link

    • Identified gene that may cause coronary artery disease

    • Identified gene variant that reduces inflammation thereby reducing heart disease

  • Medication

    • New drug to increase the HDL level

  • Risk factors

    • Men who were hostile and contemptuous of other people were 30% more likely to develop irregular heart beats

    • Explore anger management modifications


Stroke cerebral vascular accident cva

StrokeCerebral Vascular Accident (CVA)

  • Decreased blood supply to the brain

  • Types of CVAs

    • Cerebral hemorrhage

    • Cerebral occlusion

    • Cerebral aneurysm


Stroke

Stroke

  • Cerebral hemorrhage

    • Blood vessel burst inside the brain


Stroke1

Stroke

  • Cerebral occlusion

    • Floating clot or cerebral emboli

  • Cerebral thrombosis

    • Gradual narrowing


Stroke2

Stroke

  • Cerebral aneurysm

    • Weakness in the vessel


Stroke3

Stroke

  • Signs and Symptoms

    • May have no warning, sudden collapse

    • TIAs – transient ischemic attacks

    • Numbness or weakness in limbs

    • Slurred speech

    • Dizzy

  • Diagnosis

  • Treatment

    • Clot buster drugs

    • Surgery


Stroke4

Stroke

  • Prevention

    • Detection and control of diabetes

    • Stop smoking

    • Control hypertension

    • Low cholesterol diet

    • Diet high in fruits and vegetables

    • Antioxidant vitamins C,E, beta carotene, folic acid

    • Report TIAs to MD

    • Daily ASA


Congenital heart disease

Congenital Heart Disease

  • Abnormalities present at birth

  • May be due to environmental factors or illness contracted during pregnancy

  • 8 out of 1000 infants have CHD

  • Blue baby


Congenital heart defects

Congenital Heart Defects


Congenital heart defects1

Congenital Heart Defects


Congestive heart failure

Congestive Heart Failure

  • Enlarged heart due to lack of strength

  • Causes include MI, HTN, defective valves

  • Blood backs up into the body and the lungs

  • Treatment includes medications such as diuretics and vasodilators as well as reduction of salt in diet


Congestive heart failure1

Congestive Heart Failure


Congestive heart failure2

Congestive Heart Failure


Rheumatic heart disease

Rheumatic Heart Disease

  • Damage due to rheumatic fever via strep throat

  • Caused by streptococcal bacteria

  • Damages the valves of the heart

  • Surgery may be required to correct the defect


Rheumatic heart disease1

Rheumatic Heart Disease


Cardiovascular health rules

Cardiovascular Health Rules

  • Follow these rules and reduce your chance for heart disease by 82%

    • Don’t smoke

    • Avoid obesity

    • Get at least 30 min of moderate to vigorous exercise every day

    • Drink moderately

    • Eat healthy foods

      • Avoid saturated fats

      • Eat fish oil, folate, fiber, vegetable oils, whole grain products


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