Heart Disease and Congestive Heart Failure
Heart failure, sometimes known as congestive heart
failure, occurs when your heart muscle doesn't pump blood as well as it should.
Certain conditions, such as narrowed arteries in your heart (coronary artery
disease) or high blood pressure, gradually leave your heart too weak or stiff
to fill and pump efficiently.
Not all conditions that lead to heart failure can be
reversed, but treatments can improve the signs and symptoms of heart failure
and help you live longer. Lifestyle changes — such as exercising, reducing salt
in your diet, managing stress and losing weight — can improve your quality of
life.
What Is Heart
Failure?
Heart
failure does not mean the heart has stopped working. Rather, it means that the
heart's pumping power is weaker than normal. With heart failure, blood moves
through the heart and body at a slower rate, and pressure in the heart
increases. As a result, the heart cannot pump enough oxygen and nutrients to
meet the body's needs. The chambers of the heart may respond by stretching to
hold more blood to pump through the body or by becoming stiff and thickened.
This helps to keep the blood moving, but the heart muscle walls may eventually
weaken and become unable to pump as efficiently. As a result, the kidneys may
respond by causing the body to retain fluid (water) and salt. If fluid builds
up in the arms, legs, ankles, feet, lungs, or other organs, the body becomes
congested, and congestive heart failure is the term used to describe the
condition.
What Causes Heart Failure?
Heart
failure is caused by many conditions that damage the heart muscle, including:
Coronary
artery disease. Coronary artery disease (CAD), a disease of the arteries that
supply blood and oxygen to the heart, causes decreased blood flow to the heart
muscle. If the arteries become blocked or severely narrowed, the heart becomes
starved for oxygen and nutrients.
Heart
attack. A heart attack occurs when a coronary artery becomes suddenly blocked,
stopping the flow of blood to the heart muscle. A heart attack damages the
heart muscle, resulting in a scarred area that does not function properly.
Cardiomyopathy.
Damage to the heart muscle from causes other than artery or blood flow
problems, such as from infections or alcohol or drug abuse.
Conditions
that overwork the heart. Conditions including high blood pressure, valve
disease, thyroid disease, kidney disease, diabetes, or heart defects present at
birth can all cause heart failure. In addition, heart failure can occur when
several diseases or conditions are present at once
.
Heart Disease and Congestive Heart
Failure
You
may not have any symptoms of heart failure, or the symptoms may be mild to
severe. Symptoms can be constant or can come and go. The symptoms can include:
SYMPTOMS OF HEART FAILURE
Congested
lungs. Fluid backup in the lungs can cause shortness of breath with exercise or
difficulty breathing at rest or when lying flat in bed. Lung congestion can
also cause a dry, hacking cough or wheezing.
Fluid
and water retention. Less blood to your kidneys causes fluid and water
retention, resulting in swollen ankles, legs, abdomen (called edema), and
weight gain. Symptoms may cause an increased need to urinate during the night.
Bloating in your stomach may cause a loss of appetite or nausea.
Dizziness,
fatigue, and weakness. Less blood to your major organs and muscles makes you
feel tired and weak. Less blood to the brain can cause dizziness or confusion.
Rapid
or irregular heartbeats. The heart beats faster to pump enough blood to the
body. This can cause a rapid or irregular heartbeat.
If
you have heart failure, you may have one or all of these symptoms or you may
have none of them. They may or may not indicate a weakened heart.
What Are the Types of Heart Failure?
Systolic
dysfunction (or systolic heart failure) occurs when the heart muscle doesn't
contract with enough force, so there is less oxygen-rich blood that is pumped
throughout the body.
Diastolic
dysfunction (or diastolic heart failure) occurs when the heart contracts
normally, but the ventricles do not relax properly or are stiff, and less blood
enters the heart during normal filling.
A
calculation done during an echocardiogram, called the ejection fraction (EF),
is used to measure how well your heart pumps with each beat to help determine
if systolic or diastolic dysfunction is present. Your doctor can discuss which
condition you have.
Is There a Treatment for Heart
Failure?
There
are more treatment options available for heart failure than ever before. Tight
control over your medications and lifestyle, coupled with careful monitoring,
are the first steps. As the condition progresses, doctors specializing in the
treatment of heart failure can offer more advanced treatment options.
Treatment Options Includes:
·
Diet
·
Lifestyle &
Modification
·
Stop Smoking
·
Treat High Blood
Pressure
·
Drugs
·
Surgical Options
·
Device Therapy
The
goals of treating heart failure are primarily to decrease the likelihood of
disease progression (thereby decreasing the risk of death and the need for
hospitalization), to lessen symptoms, and to improve quality of life.
Together,
you and your doctor can determine the best course of treatment for you
How Can I Prevent Heart Failure From
Worsening?
Keep
your blood pressure low. In heart failure, the release of hormones causes the
blood vessels to constrict or tighten. The heart must work hard to pump blood
through the constricted vessels. It is important to keep your blood pressure
controlled so that your heart can pump more effectively without extra stress.
Monitor
your own symptoms. Check for changes in your fluid status by weighing yourself
daily and checking for swelling. Call your doctor if you have unexplained
weight gain or if you have increased swelling.
Maintain
fluid balance. Your doctor may ask you to keep a record of the amount of fluids
you drink or eat and how often you go to the bathroom. Remember, the more fluid
you carry in your blood vessels, the harder your heart must work to pump excess
fluid through your body. Limiting your fluid intake to less than 1.5 liters per
day will help decrease the workload of your heart and prevent symptoms from
recurring.
Limit
how much salt (sodium) you eat. Sodium is found naturally in many foods we eat.
It is also added for flavoring or to make food last longer. If you follow a
low-sodium diet, you should have less fluid retention, less swelling, and
breathe easier.
Monitor
your weight and lose weight if needed. Weigh yourself at the same time each
day, preferably in the morning, in similar clothing, after urinating but before
eating, and on the same scale. Record your weight in a diary or calendar. Your
doctor may want to adjust your medications.
Monitor
your symptoms. Call your doctor if new symptoms occur or if your symptoms
worsen. Do not wait for your symptoms to become so severe that you need to seek
emergency treatment.
Take
your medications as prescribed. Medications are used to improve your heart's
ability to pump blood, decrease stress on your heart, decrease the progression
of heart failure, and prevent fluid retention. Many heart failure drugs are
used to decrease the release of harmful hormones. These drugs will cause your
blood vessels to dilate or relax (thereby lowering your blood pressure).
Schedule
regular doctor appointments. During follow-up visits, your doctors will make
sure you are staying healthy and that your heart failure is not getting worse.
Your doctor will ask to review your weight record and list of medications. If
you have questions, write them down and bring them to your appointment. Call
your doctor if you have urgent questions. Notify all your doctors about your
heart failure, medications, and any restrictions. Also, check with your heart
doctor about any new medications prescribed by another doctor. Keep good
records and bring them with you to each doctor visit.
How Can I Prevent Further Heart
Damage?
In an effort to prevent further heart
damage:
Stop smoking or chewing tobacco.
Reach and maintain your healthy
weight.
Control high blood pressure,
cholesterol levels, and diabetes.
Exercise regularly.
Do not drink alcohol.
Have surgery or other procedures to
treat your heart failure as recommended.
It
is important to know the names of your medications, what they are used for, and
how often and at what times you take them. Keep a list of your medications and
bring them with you to each of your doctor visits. Never stop taking your
medications without discussing it with your doctor. Even if you have no
symptoms, your medications decrease the work of your heart so that it can pump
more effectively.
How Can I Improve My Quality of Life
With Heart Failure?
There
are several things you can do to improve your quality of life if you have heart
failure. Among them:
Eat
a healthy diet. Limit your consumption of sodium (salt) to less than 2,000
milligrams (2 grams) each day. Eat foods high in fiber. Limit foods high in
trans fat, cholesterol, and sugar. Reduce total daily intake of calories to
lose weight if necessary.
Exercise
regularly. A regular cardiovascular exercise program, prescribed by your
doctor, will help improve your strength and make you feel better. It may also
decrease heart failure progression.
Don't
overdo it. Plan your activities and include rest periods during the day.
Certain activities, such as pushing or pulling heavy objects and shoveling may
worsen heart failure and its symptoms.
Prevent
respiratory infections. Ask your doctor about flu and pneumonia vaccines.
Take
your medications as prescribed. Do not stop taking them without first
contacting your doctor.
Can Surgery Be Used to Treat Heart
Failure?
In
heart failure, surgery may sometimes prevent further damage to the heart and
improve the heart's function. Procedures used include:
Coronary
artery bypass grafting surgery. The most common surgery for heart failure
caused by coronary artery disease is bypass surgery. Although surgery is more
risky for people with heart failure, new strategies before, during, and after
surgery have reduced the risks and improved outcomes.
Heart
valve surgery. Diseased heart valves can be treated both surgically
(traditional heart valve surgery) and non-surgically (balloon valvuloplasty).
Implantable
left ventricular assist device (LVAD). The LVAD is known as the "bridge to
transplantation" for patients who haven't responded to other treatments
and are hospitalized with severe systolic heart failure. This device helps your
heart pump blood throughout your body. It allows you to be mobile, sometimes
returning home to await a heart transplant. It may also be used as destination
therapy for long-term support in patients who are not eligible for transplant.
Heart
transplant. A heart transplant is considered when heart failure is so severe
that it does not respond to all other therapies, but the person's health is
otherwise good.
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