High output heart failure is a rare form of heart failure. It can occur in people with hyperthyroidism, sepsis, or lung disease. Treatment can help stabilize symptoms and target conditions causing heart failure.
The Centers for Disease Control and Prevention (CDC) estimate that approximately
This article describes in more detail what high-output heart failure is.
Learn more about heart failure here.
When a person has heart failure, their heart does not pump enough blood throughout their body.
In high-output heart failure, however, the heart pumps a steady blood supply, and sometimes even higher volumes, but it is still unable to meet the body’s needs.
There are several potential causes of high output heart failure. These include:
The body’s metabolic process helps convert food into energy and eliminate waste.
According to a study 2016high-output metabolic heart failure causes increased metabolic demands, adding further strain on the heart.
Hyperthyroidism, or overactive thyroid, is a condition that causes the overproduction of thyroid hormones. This
Myeloproliferative disorders are another health problem that doctors associate with high-output heart failure. These include:
In addition, severe thiamine deficiency
Diseases or infections directly or indirectly affecting the heart can also cause high-output heart failure.
Sepsis is an extreme bodily response to an infection.
Sepsis causes a decrease in blood volume. At later stages, it also reduces heart function.
Chronic lung diseases also tend to cause high-output heart failure, especially on the right side of the heart. It reduces the volume of oxygen, causing the heart to work harder to pump more blood.
Peripheral vascular effects
Peripheral vascular effects are changes that affect the vascular system, such as arteries, capillaries and veins.
For example, an arteriovenous (AV) fistula is an irregular connection between a vein and an artery, which allows blood to move directly into a vein from an artery. An AV fistula can be present at birth or develop later in life. When an artery bypasses a vein, it can cause increased blood flow to the heart.
High output heart failure
The term “heart failure” does not mean the heart stopped working. It happens when the heart cannot pump enough oxygen-rich blood to the body.
Researchers call this “low-output heart failure.” There are
Heart failure with reduced pumping ability
In this type, the heart muscles are weak. They don’t produce enough blood during the contraction, so other organs in the body don’t get enough oxygen-rich blood to function properly.
Heart failure with preserved pumping capacity
In this type, when the heart pumps blood, it cannot relax and expand enough to fill with blood. As a result, the organs of the body do not receive enough blood, especially when a person exercises.
People with heart failure
People with high-output heart failure may have similar symptoms to those with low-output heart failure. These
Symptoms may also be related to the underlying condition, such as an overactive thyroid.
During diagnosis, doctors may perform a physical exam, noting any symptoms that might be present. They can also ask the person questions about medications and any other health problems they have.
- Echocardiogram: An echocardiogram is a type of ultrasound that uses sound waves to view the muscles of the heart.
- Stress test: Also known as a treadmill test, a stress test monitors heart activity during exercise. It also helps to determine the type of exercise suitable for the body.
- MRI: MRIs reveal the structure of the heart and indicate whether there is a lack of blood supply to the heart or damage from a heart attack.
- Pulmonary radiography: Healthcare professionals can take X-rays while people are standing or lying down. The image can indicate if there is an enlarged heart or fluid in the lungs.
- Blood tests: Doctors can prescribe blood tests to measure certain levels of blood substances. Abnormal results may indicate that the person has heart failure. The tests can measure:
Treatment depends on the severity of heart failure, but the goal is to stabilize the body.
Diuretics and oxygen supplementation
Diuretics are drugs that
Inotropic drugs may also be helpful if people have low blood pressure.
Doctors will also try to treat the underlying cause of heart failure. Here are some examples:
- Hyperthyroidism: The The most common the drugs that health professionals prescribe to treat an overactive thyroid are carbimazole and propylthiouracil. A person can take them with a beta-blocker to relieve symptoms. Other forms of treatment for hyperthyroidism may also include radiation therapy or surgery.
- Sepsis: Doctors treat sepsis with antibiotics and intravenous fluids.
- Cirrhosis: People with advanced cirrhosis may need a liver transplant. Medications may also be an option to manage fluid buildup due to hypervolemia.
- exercise regularly
- stop smoking, if applicable
- manage stressful situations
- management of certain factors that can lead to heart failure, such as:
- arterial pressure
- irregular heartbeat
While there is
Authors of a study 2016 associate high-output heart failure with a high risk of death. They note that high-output heart failure is more likely to develop in people with liver and kidney disease.
Low vascular resistance or low blood pressure can lead to poor results.
High-flow heart failure occurs when the heart pumps blood normally or excessively, but the body still doesn’t get the blood it needs to function.
There is no cure for heart failure, but it is treatable.
Treatment may include medication, surgery, or intravenous fluids, depending on the cause of the condition and its severity.
Different tests can help healthcare professionals examine heart rhythm and function, including echocardiograms and stress tests.