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Congestive Heart Failure
Heart failure is a condition in which the heart can't pump enough blood to meet the body's needs. In some cases, the heart can't fill with enough blood. In other cases, the heart can't pump blood to the rest of the body with enough force. Some people have both problems.
The term "heart failure" doesn't mean that your heart has stopped or is about to stop working. However, heart failure is a serious condition that requires medical care.
OverviewHeart failure develops over time as the heart's pumping action grows weaker. The condition can affect the right side of the heart only, or it can affect both sides of the heart. Most cases involve both sides of the heart.
Right-side heart failure occurs if the heart can't pump enough blood to the lungs to pick up oxygen. Left-side heart failure occurs if the heart can't pump enough oxygen-rich blood to the rest of the body.
Right-side heart failure may cause fluid to build up in the feet, ankles, legs, liver, abdomen, and the veins in the neck. Right-side and left-side heart failure also may cause shortness of breath and fatigue (tiredness).
The leading causes of heart failure are diseases that damage the heart. Examples include coronary heart disease (CHD), high blood pressure, and diabetes.
The most common signs and symptoms of heart failure are:
- Shortness of breath or trouble breathing
- Fatigue (tiredness)
- Swelling in the ankles, feet, legs, abdomen, and veins in the neck
As your heart grows weaker, symptoms get worse. You may begin to feel tired and short of breath after getting dressed or walking across the room. Some people have shortness of breath while lying flat.
Fluid buildup from heart failure also causes weight gain, frequent urination, and a cough that's worse at night and when you're lying down. This cough may be a sign of acute pulmonary edema (e-DE-ma). This is a condition in which too much fluid builds up in your lungs. The condition requires emergency treatment.
Early diagnosis and treatment can help people who have heart failure live longer, more active lives. Treatment for heart failure depends on the type and severity of the heart failure.
The goals of treatment for all stages of heart failure include:
- Treating the condition's underlying cause, such as coronary heart disease, high blood pressure, or diabetes
- Reducing symptoms
- Stopping the heart failure from getting worse
- Increasing your lifespan and improving your quality of life
Heart-Healthy Lifestyle ChangesYour doctor may recommend heart-healthy lifestyle changes if you have heart failure. Heart-healthy lifestyle changes include:
- Heart-healthy eating
- Aiming for a healthy weight
- Physical activity
- Quitting smoking
MedicinesYour doctor will prescribe medicines based on the type of heart failure you have, how severe it is, and your response to certain medicines. The following medicines are commonly used to treat heart failure:
- ACE inhibitors lower blood pressure and reduce strain on your heart. They also may reduce the risk of a future heart attack.
- Aldosterone antagonists trigger the body to remove excess sodium through urine. This lowers the volume of blood that the heart must pump.
- Angiotensin receptor blockers relax your blood vessels and lower blood pressure to decrease your heart’s workload.
- Beta blockers slow your heart rate and lower your blood pressure to decrease your heart’s workload.
- Digoxin makes the heart beat stronger and pump more blood.
- Diuretics (fluid pills) help reduce fluid buildup in your lungs and swelling in your feet and ankles.
- Isosorbide dinitrate/hydralazine hydrochloride helps relax your blood vessels so your heart doesn’t work as hard to pump blood. Studies have shown that this medicine can reduce the risk of death in blacks.
Ongoing CareYou should watch for signs that heart failure is getting worse. For example, weight gain may mean that fluids are building up in your body. Ask your doctor how often you should check your weight and when to report weight changes.
Getting medical care for other related conditions is important. If you have diabetes or high blood pressure, work with your health care team to control these conditions. Have your blood sugar level and blood pressure checked. Talk with your doctor about when you should have tests and how often to take measurements at home.
Try to avoid respiratory infections like the flu and pneumonia. Talk with your doctor or nurse about getting flu and pneumonia vaccines.
Many people who have severe heart failure may need treatment in a hospital from time to time. Your doctor may recommend oxygen therapy, which can be given in a hospital or at home.
Medical Procedures and SurgeryAs heart failure worsens, lifestyle changes and medicines may no longer control your symptoms. You may need a medical procedure or surgery.
In heart failure, the right and left sides of the heart may no longer contract at the same time. This disrupts the heart’s pumping. To correct this problem, your doctor might implant a cardiac resynchronization therapy device (a type of pacemaker) near your heart. This device helps both sides of your heart contract at the same time, which can decrease heart failure symptoms.
Some people who have heart failure have very rapid, irregular heartbeats. Without treatment, these heartbeats can cause sudden cardiac arrest. Your doctor might implant an implantable cardioverter defibrillator (ICD) near your heart to solve this problem. An ICD checks your heart rate and uses electrical pulses to correct irregular heart rhythms.
People who have severe heart failure symptoms at rest, despite other treatments, may need:
- A mechanical heart pump, such as a left ventricular assist device. This device helps pump blood from the heart to the rest of the body. You may use a heart pump until you have surgery or as a long-term treatment.
- Heart transplant. A heart transplant is an operation in which a person’s diseased heart is replaced with a healthy heart from a deceased donor. Heart transplants are done as a life-saving measure for end-stage heart failure when medical treatment and less drastic surgery have failed.