Chronic heart failure is a long-term condition where the heart cannot pump blood as effectively as the body needs, but with the right combination of medications, lifestyle adjustments, and medical support, many people can manage symptoms and maintain quality of life for years.

Managing a Condition That Requires Lifelong Care

When the heart struggles to pump blood efficiently throughout the body, doctors call this chronic heart failure. The name can sound frightening, but it does not mean the heart has stopped working or is about to fail completely. Rather, it means the heart has become weaker or stiffer than normal and needs support to do its job properly. This condition develops gradually over time and affects millions of people worldwide, particularly those over the age of 65.^[1][2]

Treatment for chronic heart failure focuses on several important goals. First, it aims to reduce symptoms such as shortness of breath, swelling in the legs, and overwhelming tiredness. Second, it works to slow down the progression of the disease so that the heart does not weaken further. Third, it helps people stay out of the hospital and avoid emergency situations. Finally, treatment seeks to improve overall quality of life so that people can continue doing the activities they enjoy.^[3][12]

The approach to treating chronic heart failure varies depending on how severe the condition is and what caused it in the first place. Some people develop heart failure because of coronary artery disease, which means the arteries supplying blood to the heart have become narrowed or blocked. Others may have damage from a previous heart attack, long-standing high blood pressure, problems with heart valves, or conditions affecting the heart muscle directly. Each person’s treatment plan must be tailored to their specific situation.^[5][6]

Medical societies and expert groups have developed detailed guidelines about how to treat chronic heart failure based on years of research and clinical experience. These guidelines are regularly updated as new evidence emerges. At the same time, researchers continue to explore innovative therapies through clinical trials, testing new medications and treatment approaches that might offer additional benefits to patients. This means that treatment options are constantly evolving, and what is considered standard care today may be enhanced by tomorrow’s discoveries.^[15]

Established Medical Treatments for Chronic Heart Failure

The foundation of chronic heart failure treatment rests on several categories of medications that work in different ways to support the heart. These are not experimental drugs but rather well-established therapies that have been proven effective through extensive research and years of use in clinical practice. Most people with heart failure will need to take two or three different types of medications, often for the rest of their lives.^[10][11]

Diuretics, often called water pills, are commonly prescribed to help remove excess fluid from the body. When the heart cannot pump effectively, fluid tends to build up in the lungs, legs, ankles, and abdomen, causing swelling and making breathing difficult. Diuretics increase urine production, which helps relieve this congestion. Common examples include furosemide and bumetanide. While they effectively reduce swelling and breathlessness, they can also cause dehydration and lower levels of important minerals like sodium and potassium in the blood, so regular monitoring is necessary.^[11]

Angiotensin-converting enzyme inhibitors, known as ACE inhibitors, work by relaxing and opening blood vessels, making it easier for the heart to pump blood throughout the body. These medications reduce the workload on the heart and can help slow the progression of heart failure. Examples include ramipril, enalapril, lisinopril, and perindopril. The most common side effect is a persistent dry cough that some people find troublesome. ACE inhibitors can also lower blood pressure more than desired and may affect kidney function, so doctors monitor these effects with regular blood tests.^[11]

For people who cannot tolerate ACE inhibitors due to coughing, angiotensin receptor blockers (ARBs) offer an alternative. These medications work similarly to ACE inhibitors by relaxing blood vessels and reducing blood pressure, but they do not typically cause coughing. Examples include candesartan, losartan, telmisartan, and valsartan. Like ACE inhibitors, they can affect blood pressure and potassium levels, requiring regular monitoring.^[11]

Beta blockers protect the heart from the effects of stress hormones like adrenaline that can make heart failure worse over time. They slow the heart rate and reduce blood pressure, allowing the heart to work more efficiently. The main beta blockers used for heart failure in the United Kingdom are bisoprolol, carvedilol, and nebivolol. Some people experience side effects such as dizziness, tiredness, or blurred vision when starting these medications, but these effects often become less bothersome as the body adjusts.^[11]

Mineralocorticoid receptor antagonists (MRAs) help the body eliminate excess fluid and lower blood pressure, but unlike regular diuretics, they do not cause potassium loss. In fact, they can cause potassium levels to rise too high, which can be dangerous. The most widely used MRAs are spironolactone and eplerenone. Spironolactone may cause breast enlargement and tenderness in men, as well as increased hair growth in women. Eplerenone can cause sleep difficulties, dizziness, and headaches. Because of the risk of high potassium levels, regular blood testing is essential when taking these medications.^[11]

A newer class of medication called angiotensin receptor-neprilysin inhibitors (ARNIs) combines two different mechanisms in one pill. The most commonly used drug in this class is sacubitril valsartan. It works by both relaxing blood vessels and preventing the breakdown of helpful substances that protect the heart. This dual action can provide greater benefits than traditional medications alone. Some people may experience low blood pressure or changes in kidney function when taking this medication.^[11][15]

Sodium-glucose cotransporter-2 inhibitors (SGLT2 inhibitors) were originally developed to treat diabetes, but researchers discovered they also benefit people with heart failure, even those without diabetes. These medications help the kidneys remove excess sugar and salt from the body through urine, and they appear to protect the heart through other mechanisms that are still being studied. According to recent guidelines, SGLT2 inhibitors have become an important part of standard treatment for heart failure. Examples include medications from this class that are now recommended for many heart failure patients.^[15]

Another medication sometimes used is ivabradine, which specifically slows the heart rate. It can be helpful for people who cannot take beta blockers or whose heart rate remains too fast despite taking them. Possible side effects include headaches, dizziness, and blurred vision or seeing bright spots in the visual field.^[11]

Digoxin is one of the oldest heart medications still in use. It strengthens the heart’s contractions and can help control heart rate, particularly in people who also have an irregular heart rhythm called atrial fibrillation. Because digoxin can build up in the body and cause toxicity, doctors carefully monitor blood levels of this medication.^[15]

In some cases, doctors may prescribe a combination of hydralazine with nitrates. These medications work together to relax blood vessels and improve blood flow. This combination may be particularly helpful for certain patient groups when other medications are not suitable.^[11]

The duration of treatment for chronic heart failure is typically lifelong. Heart failure cannot usually be cured, but symptoms can be controlled for many years with consistent medication use. Regular follow-up appointments allow doctors to adjust medications as needed, monitor for side effects through blood tests, and ensure the treatment plan continues to work well. Most people with heart failure see their doctor or care team at least every six months, and more frequently if their condition is less stable.^[11][17]

Beyond medications, some people with heart failure may benefit from devices implanted in the chest. These include pacemakers, which help regulate the heart’s rhythm, and implantable cardioverter defibrillators (ICDs), which can detect and correct dangerous heart rhythms. In more advanced cases, a left ventricular assist device (LVAD) may be used to help the heart pump blood. For people with the most severe heart failure who do not respond to other treatments, heart transplantation may be considered, though this option is limited by the availability of donor organs.^[10][14]

Surgery may also play a role in treating heart failure depending on its cause. For example, if blocked coronary arteries are contributing to heart failure, coronary artery bypass surgery may help improve blood flow to the heart muscle. If faulty heart valves are the problem, valve repair or replacement surgery might be recommended. These surgical procedures aim to address the underlying cause of heart failure rather than just managing symptoms.^[10]

Investigational Therapies Being Studied in Clinical Trials

While current treatments help many people with chronic heart failure, researchers continue searching for new therapies that might provide additional benefits or work better for specific groups of patients. Clinical trials test these promising new approaches before they become available to the general public. These studies follow strict protocols to ensure patient safety and determine whether new treatments actually work better than existing options.^[15]

Clinical trials typically happen in three phases. Phase I trials focus primarily on safety, testing a new treatment in a small group of people to see if it causes harmful side effects and to determine appropriate doses. Phase II trials expand to a larger group to begin evaluating whether the treatment actually works to improve symptoms or outcomes while continuing to monitor safety. Phase III trials involve hundreds or even thousands of patients and compare the new treatment directly against current standard treatments to see if it offers meaningful advantages. Only after successfully completing these phases can a new therapy be considered for approval by regulatory authorities.^[15]

Some clinical trials for heart failure explore entirely new types of medications that work through different mechanisms than existing drugs. For example, researchers are studying drugs that target specific molecular pathways involved in heart muscle damage and repair. These might include medications that reduce inflammation in the heart, protect heart cells from stress, or help the heart muscle contract more efficiently. Each of these approaches aims to address different aspects of how heart failure develops and progresses.^[15]

Other trials investigate whether existing medications approved for different conditions might also help people with heart failure. This approach, called drug repurposing, can potentially bring new treatments to patients faster because the medications have already been proven safe for other uses. The SGLT2 inhibitors mentioned earlier are actually an example of this—they were first developed for diabetes but turned out to have powerful benefits for heart failure as well.^[15]

Gene therapy represents another frontier being explored in heart failure research. This innovative approach attempts to introduce healthy genetic material into heart cells to correct defects or enhance the heart’s ability to function. While still largely experimental, early research in this area has shown some promising results in laboratory and early-stage human studies. Gene therapy for heart failure remains years away from routine clinical use, but it represents the kind of forward-thinking research that could transform treatment in the future.^[15]

Cell-based therapies are another area of active investigation. These approaches involve using stem cells or other types of cells to try to repair damaged heart tissue or stimulate the heart to heal itself. Some trials have tested injecting various types of cells directly into the heart muscle or delivering them through the bloodstream. Results from these studies have been mixed, and researchers continue working to understand which types of cells, delivery methods, and patient populations might benefit most from this approach.^[15]

Clinical trials for heart failure are conducted at medical centers around the world, including in Europe, the United States, and many other countries. To participate in a clinical trial, patients typically need to meet specific eligibility criteria, which might relate to the type and severity of their heart failure, other medical conditions they have, and what medications they are currently taking. Participation is always voluntary, and patients receive detailed information about the potential benefits and risks before deciding whether to enroll.^[15]

Some clinical trials have reported encouraging preliminary results. For instance, studies of certain new medications have shown improvements in patients’ ability to exercise, reductions in hospitalizations, or better scores on quality of life questionnaires. However, it is important to understand that preliminary results are not the same as proven benefits. Only when a clinical trial is fully completed and the results have been carefully analyzed can researchers determine whether a new treatment truly works and is safe enough for widespread use.^[15]

Recent guidelines from major cardiology organizations now include four core classes of medications considered foundational for treating heart failure with reduced pumping ability: SGLT2 inhibitors, beta blockers, mineralocorticoid receptor antagonists, and medications that affect the renin-angiotensin system (such as ACE inhibitors, ARBs, or ARNIs). This represents a significant evolution in how heart failure is treated, as these four medication classes working together have been shown to provide substantial benefits. The fact that SGLT2 inhibitors, which were still relatively new, have already been incorporated into these core recommendations demonstrates how clinical trial results can change practice.^[15]

Most common treatment methods

• Medications to reduce fluid buildup
  • Diuretics such as furosemide and bumetanide that increase urine production
  • Help relieve swelling in legs and ankles and reduce breathlessness
  • Require monitoring of kidney function and mineral levels in the blood
• Medications to relax blood vessels
  • ACE inhibitors like ramipril, enalapril, lisinopril, and perindopril
  • Angiotensin receptor blockers including candesartan, losartan, and valsartan
  • Angiotensin receptor-neprilysin inhibitors such as sacubitril valsartan
  • Make it easier for the heart to pump blood by reducing resistance in blood vessels
• Medications to protect the heart
  • Beta blockers including bisoprolol, carvedilol, and nebivolol
  • Slow heart rate and reduce the heart’s workload
  • Protect the heart from stress hormones that can worsen heart failure
• Medications affecting salt and water balance
  • Mineralocorticoid receptor antagonists like spironolactone and eplerenone
  • SGLT2 inhibitors that help kidneys remove excess sugar and salt
  • Reduce fluid buildup and provide heart protection
• Medications to control heart rhythm
  • Digoxin to strengthen heart contractions and control heart rate
  • Ivabradine to specifically slow heart rate
  • Particularly helpful for people with irregular heart rhythms
• Implanted devices
  • Pacemakers to regulate heart rhythm
  • Implantable cardioverter defibrillators to correct dangerous heart rhythms
  • Left ventricular assist devices to help the heart pump in advanced cases
• Surgical procedures
  • Coronary artery bypass surgery to improve blood flow to the heart
  • Heart valve repair or replacement surgery
  • Heart transplantation for the most severe cases
• Lifestyle modifications
  • Reducing salt intake in the diet
  • Regular light physical activity and exercise programs
  • Monitoring daily weight to detect fluid buildup early
  • Getting adequate sleep and rest
  • Stopping smoking and limiting alcohol consumption

Daily Life and Self-Management

Living with chronic heart failure requires active participation in your own care. While medications form the backbone of treatment, the choices you make every day can significantly impact how you feel and how well your condition is controlled. Doctors emphasize that patients who take an active role in managing their condition often experience better outcomes and enjoy a higher quality of life.^[21]

One of the most important daily tasks for people with heart failure is monitoring their weight. A sudden gain of two or three pounds in a single day can signal that fluid is building up in the body, which might mean that heart failure is worsening or that medication adjustments are needed. Weighing yourself at the same time each day, typically in the morning after using the bathroom and before eating breakfast, provides the most consistent readings. Keeping a written record of daily weights helps you and your doctor spot concerning trends early.^[20][22]

Managing the amount of salt in your diet plays a crucial role in controlling heart failure symptoms. Salt causes the body to retain water, which increases the burden on the heart and can lead to swelling and breathing difficulties. Most people with heart failure should limit their daily sodium intake significantly. This means avoiding obviously salty foods like chips, processed meats, canned soups, and many restaurant meals, which often contain hidden high amounts of sodium. Reading food labels carefully becomes an essential skill. Fresh fruits, vegetables, and foods prepared at home with minimal added salt generally represent the best choices.^[12][22]

Fluid intake sometimes needs to be monitored as well, particularly in more severe heart failure. Your doctor will advise you about whether you need to limit how much liquid you drink each day. This includes not just water, but also juice, milk, soup, coffee, tea, and any other beverages. Some doctors recommend limiting total daily fluid intake to a specific amount, while others take a more flexible approach depending on the individual situation.^[12]

Physical activity might seem counterintuitive when your heart is not working well, but appropriate exercise actually strengthens the heart muscle and improves how efficiently it pumps blood. The key is finding the right level of activity for your condition. Light activities such as walking, swimming, or gentle cycling are often recommended. Your doctor may refer you to a cardiac rehabilitation program, where healthcare professionals create a personalized exercise plan and supervise your activity to ensure safety. Starting slowly and gradually increasing activity over time, with frequent rest breaks, allows your heart to adapt without becoming overstrained.^[12][17]

Conserving energy throughout the day helps prevent overworking the heart. This means planning activities to avoid rushing, taking rest periods between tasks, and sitting down when possible during activities that might normally be done standing. Occupational therapists can teach specific techniques for performing daily tasks more efficiently, such as organizing your home to minimize walking distances or using assistive devices that reduce physical effort.^[20]

Sleep quality affects heart failure in multiple ways. When you sleep, your heart does not have to work as hard, giving it a chance to rest. However, many people with heart failure struggle with sleep problems. Fluid accumulation can make lying flat difficult, leading some people to sleep propped up with several pillows or even in a reclining chair. If you experience sudden shortness of breath that wakes you at night, this is an important symptom to report to your doctor. Sleep apnea, a condition where breathing repeatedly stops and starts during sleep, is common in people with heart failure and can make the condition worse, so treatment of sleep problems becomes part of overall heart failure management.^[20]

Smoking and alcohol consumption can worsen heart failure and should be avoided or strictly limited. Smoking damages blood vessels and makes the heart work harder, while excessive alcohol can weaken the heart muscle directly. If you smoke, quitting is one of the most important things you can do for your health. If you drink alcohol, discuss with your doctor whether you can continue doing so and in what amounts. Some people with heart failure, particularly if alcohol contributed to causing their condition, may be advised to stop drinking entirely.^[17][22]

Staying current with vaccinations protects against infections that can be particularly dangerous for people with heart failure. The annual flu vaccine and the pneumococcal vaccine that protects against certain types of pneumonia are strongly recommended. When you have heart failure, your body is more vulnerable to infections, and respiratory infections in particular can put additional strain on your already challenged heart.^[17]

Traveling with heart failure is usually possible with proper planning. For air travel, inform the airline about your condition so they can provide assistance such as wheelchair service to minimize long walks through the airport. Carry your medications in your hand luggage, and consider taking two separate supplies in case one is lost. Bring a list of your medications and their purposes. If traveling to a high altitude or a very hot and humid climate, discuss this with your doctor first, as these environments can put extra strain on your heart. When sitting for long periods during travel, do simple leg exercises and consider wearing compression stockings to reduce the risk of blood clots forming in your legs.^[17]

Regular follow-up with your healthcare team remains essential even when you feel well. These appointments allow your doctor to assess whether your current treatment plan is working optimally, make any needed medication adjustments, perform blood tests to monitor for medication side effects, and catch potential problems before they become serious. Many people with heart failure are cared for by a team that includes not just a cardiologist and primary care doctor, but also nurses, pharmacists, dietitians, and other specialists who each contribute their expertise to your care.^[16][17]