Left Ventricular Assist Device (LVAD): How It Works, Benefits, Risks and Recovery
Updated: 3 days ago
Medically reviewed by Dr. Baraa Alnahhal, MD · Last reviewed: October 2026
Quick Answer: What is an LVAD?
A left ventricular assist device (LVAD) is an implanted mechanical pump that helps the left ventricle pump blood to the aorta and body. It is used in end-stage heart failure, as a bridge to heart transplant or as long-term destination therapy for people who are not transplant candidates. It works alongside the heart rather than replacing it. [1]
What the research says
A fully magnetically levitated pump beat an older axial-flow pump at 2 years. In the final report of the MOMENTUM 3 randomized trial (1,028 patients), 76.9% of patients with the centrifugal-flow pump were alive and free of disabling stroke or reoperation to replace or remove the device at 2 years, versus 64.8% with the axial-flow pump (relative risk 0.84, 95% CI 0.78–0.91). Pump replacement was 2.3% versus 11.3% (Mehra et al., New England Journal of Medicine, 2019; DOI). [2]
The advantage held at 5 years. Among patients still on LVAD support at 2 years, overall survival at 5 years was 58.4% with the centrifugal-flow pump versus 43.7% with the axial-flow pump (hazard ratio 0.72, 95% CI 0.58–0.89), and serious adverse events of stroke, bleeding and pump thrombosis were less frequent (Mehra et al., JAMA, 2022; DOI). [3]
Real-world results look similar to the trial. In 2,200 patients receiving this pump (515 from the pivotal trial and 1,685 in a continued-access study), 2-year overall survival was 81.2% in the continued-access group and 79.0% in the pivotal group (Mehra et al., European Journal of Heart Failure, 2021; DOI). [4]
Key Takeaways
Feature | Details |
What It Is | An implanted mechanical pump that helps the left ventricle move blood to the aorta |
Main Purposes | Bridge to transplant or destination therapy in end-stage heart failure |
Main Parts | Pump, driveline, controller and power supply |
Surgery | Open-heart surgery under general anesthesia, usually 4 to 6 hours |
Typical Hospital Stay | 14 to 21 days, with individual variation |
Key Risks | Infection, blood clots and stroke, bleeding, right heart failure, kidney injury, device malfunction |
Important Limit | It supports the heart but does not replace it and is not a cure |
What Is a Left Ventricular Assist Device?
An LVAD is a mechanical pump for people with heart failure. It helps the lower left chamber of the heart, the left ventricle, pump blood out to the aorta, the large artery that carries oxygen-rich blood to the body. The pump unit is implanted inside the chest at the bottom of the heart. It receives blood and sends it through a tube to the aorta. [1]
An LVAD supports the heart’s pumping function. It does not replace the heart, and it is not a cure for heart failure. Better survival with today’s devices has led more people to receive them: each year, more than 2,500 people with heart failure receive an LVAD in the United States. [1]
How does a left ventricular assist device (LVAD) work?
The LVAD receives blood from the left ventricle and pumps it to the aorta, helping blood reach the organs and tissues that depend on a steady supply of oxygen. A driveline passes from the pump through the skin of the abdomen to a controller outside the body. [1]
Component | What it does |
Pump | Receives blood from the left ventricle and pumps it toward the aorta. |
Driveline | Passes through the abdominal skin and connects the internal pump with the external controller. |
Controller | Runs the pump and provides messages and alarms. |
Power supply | Keeps the LVAD running through rechargeable batteries or an electrical cord. |
Batteries can provide up to 14 hours of power, depending on the device, and must be replaced when power is low. Several LVADs are available, and your healthcare provider recommends the one that fits your needs and medical condition.
Who May Receive an LVAD?
An LVAD is for people with end-stage heart failure. Your provider decides whether it is appropriate based on your medical condition, symptoms, body size and other medical conditions. [1]
Bridge to Transplant
While waiting for a heart transplant, your condition may keep getting worse, leading to hospital admissions, more symptoms and damage to other organs such as the kidneys, liver and lungs. Bridge to transplant helps you survive until a donor heart is available. The LVAD supports your heart, may give you a better quality of life and fewer symptoms, and is removed by a surgeon at the time of your transplant. How long you need it depends on your medical condition, blood type and body size. [1]
Destination Therapy
Destination therapy is for people with heart failure who are not candidates for heart transplant surgery. It is considered only after everything else, such as medicines, lifestyle changes and heart procedures, has been tried. The LVAD supports heart function and improves quality of life for the rest of a person’s life, but it is not a cure. [1]
LVAD purpose | What it means |
Bridge to transplant | Supports you while you wait for a donor heart; removed at transplant. Timing varies. |
Destination therapy | Long-term support when transplant is not an option after other treatments have been tried. |
How is candidacy for a left ventricular assist device (LVAD) evaluated?
Candidacy for a left ventricular assist device (LVAD) is evaluated with a medical exam and several tests, such as an electrocardiogram, echocardiogram and heart catheterization.
Electrocardiogram: checks heart rhythm. [1]
Chest X-ray: looks at the chest and lungs. [1]
Blood tests: check blood and organ status. [1]
Echocardiogram: looks at heart structure and function. [1]
Metabolic stress test: measures response to exertion. [1]
Heart catheterization: looks at the heart and blood vessels. [1]
An LVAD is not appropriate for everyone with heart failure. You may not be a candidate if you have blood clotting disorders, irreversible kidney failure, severe liver disease, severe lung disease or infections that antibiotics cannot treat. A listed condition does not decide candidacy on its own; the treating team reviews the full medical picture. [1]
What happens during left ventricular assist device (LVAD) implantation?
Left ventricular assist device (LVAD) implantation is open-heart surgery done under general anesthesia, so you are asleep throughout. During the procedure:
A heart-lung bypass machine circulates oxygen-rich blood through your body. [1]
A ventilator takes over your breathing. [1]
The surgeon makes an incision down the chest and opens the breastbone (sternum) to reach the heart and attach the LVAD. Depending on your situation, an incision on the left side of the chest (thoracotomy) may also be needed. [1]
The incision is closed after the device is in place.
The operation takes four to six hours. [1]
What happens before leaving the hospital after LVAD implantation?
Before discharge, you learn how to manage the device and handle possible emergencies. You must show your knowledge of the LVAD and that you can care for yourself. You also receive guidance about swimming, showering, bathing, resuming sexual activity, medicines (including anticoagulants), diet and when to call your provider. [1]
At home you need an accurate scale and a thermometer, and some people also monitor blood pressure. You should receive instructions for reaching your healthcare team when needed. [1]
What is daily life like with a left ventricular assist device (LVAD)?
Daily life with a left ventricular assist device (LVAD) involves keeping up healthy lifestyle changes, such as quitting tobacco and alcohol, eating well and exercising as advised. [1]
Quit tobacco products.
Eat a healthy diet.
Quit drinking alcohol.
Do not use illegal drugs.
Exercise regularly as advised.
Cardiac rehabilitation is an important program after surgery. Some activities, such as swimming, contact sports and weightlifting, may be restricted. If lifestyle changes are difficult, your healthcare team can help with strategies or referrals. [1]
What are the possible benefits of a left ventricular assist device (LVAD)?
People with end-stage heart failure who receive an LVAD tend to live longer than those who receive medical therapy alone. By increasing blood flow, an LVAD may:
An LVAD can improve quality of life but does not cure heart failure. About 80% of people who receive an LVAD today are alive one year later, and almost 50% are alive four years later. These are population figures, not a personal prognosis. [1]
What are the risks and complications of an LVAD?
LVAD implantation is major surgery and carries risks. Your provider explains which are most relevant to you.
Risk or complication | Plain-language explanation |
Infection | Infection may affect the surgical area, driveline or other parts of care. |
Blood clots and stroke | Clots can block blood flow or travel to the brain. |
Bleeding | Surgery and anticoagulant medicines make bleeding an important concern. |
Right heart failure | The right side of the heart may not pump effectively after implantation. |
Kidney injury | Kidney function may worsen around major illness or surgery. |
LVAD malfunction | A component of the device may not work correctly. |
Advance directives can let your healthcare team know your wishes about medical treatment if you become unable to communicate them. [1]
What does recovery and follow-up after LVAD implantation involve?
Everyone recovers differently. A typical hospital stay is 14 to 21 days, and your rate of recovery and medical condition determine when you can go home. Some people spend time in an intermediate care facility or rehabilitation center until they are strong enough. If you may need care at home, your team can help arrange it. [1]
Stage | Typical pattern |
Initial hospital stay | 14 to 21 days, with individual variation |
First few weeks after discharge | Weekly appointments |
Ongoing follow-up | Visits taper to monthly |
After the first year | Fewer visits |
While waiting for transplant | At least one appointment every three months |
How Long Can a Person Live With an LVAD?
The length of support varies with the type of LVAD, whether it is used as a bridge to transplant or destination therapy, and your overall health. The newest devices last several years, and some people have lived with an LVAD for more than five years. This does not predict how long any one person will live with an LVAD. [1]
How is a left ventricular assist device (LVAD) different from a pacemaker?
An LVAD helps the left ventricle pump blood, while a pacemaker helps stabilize abnormal heart rhythms. They are different devices with different purposes, and an LVAD does not replace the heart. [1]
When should you call your healthcare provider about your LVAD?
Call your healthcare provider if you have an LVAD and develop fever, redness at the driveline site, chest or belly pain, bleeding, swelling, shortness of breath or device problems. [1]
Fever.
Redness around the area where the driveline passes through the skin.
Pain in your chest or belly.
Bleeding.
Swelling in your back or lower body.
Shortness of breath.
Problems with any part of your LVAD.
Because LVAD complications can be serious, follow the emergency instructions from your treating team. Do not rely on an article to interpret an alarm or decide whether a symptom is safe to ignore.
What questions should you ask before LVAD implantation?
Topic | Example question |
Purpose | Is this being considered as bridge to transplant or destination therapy? |
Candidacy | Which test results affect whether an LVAD is appropriate for me? |
Procedure | What will happen during the four- to six-hour operation? |
Device | Which pump, driveline, controller and power system will I use? |
Batteries | How will battery replacement and backup power be handled? |
Medicines | Which medicines, including anticoagulants, will I need afterward? |
Home care | What do I need to learn before discharge? |
Activities | Which activities, including swimming, contact sports or weightlifting, will be restricted? |
Rehabilitation | When should cardiac rehabilitation begin? |
Follow-up | How often will I need appointments? |
Transplant | If I am waiting for a transplant, how will the LVAD plan change? |
Warning signs | Which symptoms or alarms need an urgent call or emergency care? |
Advance directives | How can I document my treatment wishes? |
Conclusion
A left ventricular assist device is an implanted pump that helps the left ventricle move blood to the aorta. It can support people with end-stage heart failure as a bridge to transplant or as destination therapy, and it can reduce symptoms, improve organ function and quality of life. It does not replace the heart and is not a cure, and important risks include infection, blood clots and stroke, bleeding, right heart failure, kidney injury and device malfunction. If an LVAD is being considered, ask your team to explain the treatment purpose, the candidacy tests, your responsibilities for managing the device, likely restrictions, the follow-up schedule and the warning signs.
Frequently Asked Questions
Is an LVAD a replacement heart?
No. An LVAD works with your heart by receiving blood from the left ventricle and delivering it to the aorta.
Is an LVAD a pacemaker?
No. An LVAD helps the left ventricle pump blood, while a pacemaker helps stabilize abnormal heart rhythms.
Who may need an LVAD?
People with end-stage heart failure. It may be used while waiting for a heart transplant or as destination therapy when transplant is not an option.
What is bridge to transplant?
LVAD support while waiting for a donor heart. The device is removed during the transplant.
What is destination therapy?
Long-term LVAD support for people who are not candidates for heart transplant surgery after other treatments have been tried.
What tests are done before implantation?
An electrocardiogram, chest X-ray, blood tests, echocardiogram, metabolic stress test and heart catheterization.
Who may not be a candidate?
People with blood clotting disorders, irreversible kidney failure, severe liver disease, severe lung disease or infections that antibiotics cannot treat may not be candidates. Your team reviews the whole picture.
How long does LVAD surgery take?
Four to six hours.
How long is the hospital stay?
A typical stay is 14 to 21 days, but it varies with recovery. Some people spend time in an intermediate care or rehabilitation facility before going home.
What are the parts of an LVAD?
The pump, driveline, controller and power supply.
How long do LVAD batteries last?
Batteries can provide up to 14 hours of power, depending on the device, and need to be replaced when power is low.
What medicines are needed after an LVAD?
Discharge education covers medicines, including anticoagulants (blood thinners). Your treating team explains your medicine plan.
Can someone go home with an LVAD?
Yes. An LVAD may allow you to leave the hospital. Before discharge you learn to manage the device and show you can care for yourself.
Is cardiac rehabilitation important?
Yes. Cardiac rehabilitation is an important program after surgery.
What activities may be restricted?
Swimming, contact sports and weightlifting may be restricted. Your care team gives guidance for you and your device.
How often are follow-up visits?
Weekly for a few weeks, tapering to monthly, and less often after the first year. People waiting for a transplant need a visit at least every three months.
What are the most common LVAD risks?
Infection, blood clots and stroke, bleeding, right heart failure, kidney injury and device malfunction.
How long can someone live with an LVAD?
It varies with the device, the treatment purpose and overall health. The newest devices last several years, and some people have lived with an LVAD for more than five years. This is not a personal prognosis.
Does an LVAD cure heart failure?
No. An LVAD may improve blood flow and quality of life, but it is not a cure.
What warning signs should I report?
Fever, redness where the driveline passes through the skin, chest or belly pain, bleeding, swelling in the back or lower body, shortness of breath, chest pain or any problem with the device.
What do survival figures mean for me?
About 80% of people who receive an LVAD today are alive one year later and almost 50% four years later. These are population figures, not a personal prediction.
Related Reading
Heart Transplant: Who Needs One, Surgery and Recovery explains heart transplant surgery and recovery.
References
Cleveland Clinic. Left Ventricular Assist Devices (LVADs). Cleveland Clinic Health Library. Last updated February 3, 2023. https://my.clevelandclinic.org/health/treatments/17192-left-ventricular-assist-devices-mechanical-circulatory-support-mcs
Mehra MR, Uriel N, Naka Y, et al. A fully magnetically levitated left ventricular assist device: final report. New England Journal of Medicine. 2019;380(17):1618-1627. PMID: 30883052. https://doi.org/10.1056/NEJMoa1900486
Mehra MR, Goldstein DJ, Cleveland JC, et al. Five-year outcomes in patients with fully magnetically levitated vs axial-flow left ventricular assist devices in the MOMENTUM 3 randomized trial. JAMA. 2022;328(12):1233-1242. PMID: 36074476. https://doi.org/10.1001/jama.2022.16197
Mehra MR, Cleveland JC, Uriel N, et al. Primary results of long-term outcomes in the MOMENTUM 3 pivotal trial and continued access protocol study phase: a study of 2200 HeartMate 3 left ventricular assist device implants. European Journal of Heart Failure. 2021;23(8):1392-1400. PMID: 33932272. https://doi.org/10.1002/ejhf.2211
Disclaimer
The information provided in this article is for educational purposes only and is not intended as medical advice. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read in this article.
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