Heart failure

Heart failure means the heart cannot pump blood around the body as effectively as it should, leading to symptoms such as breathlessness, fatigue, and fluid retention. It is a chronic condition that is managed rather than cured outright in most cases, though many people live well for years with appropriate treatment. It usually results from an underlying condition affecting the heart, such as coronary artery disease or high blood pressure.

The most common causes are coronary artery disease and previous heart attacks, long-standing high blood pressure, heart valve disease, and conditions directly affecting the heart muscle (cardiomyopathies). Irregular heart rhythms, diabetes, excess alcohol use, and certain chemotherapy treatments can also contribute. Often more than one factor is present together.

Common symptoms include breathlessness, particularly on exertion or lying flat, fatigue, ankle and leg swelling, and sometimes a persistent cough or wheeze. Sudden weight gain from fluid retention can be an early sign of worsening heart failure. Symptoms can develop gradually or, during a flare, appear more suddenly.

Yes, it is a serious, long-term condition needing ongoing specialist care, but with modern medication, monitoring, and lifestyle measures, many people achieve good symptom control and quality of life for years. Untreated or poorly controlled heart failure can lead to repeated hospital admissions and worsening heart function over time. Regular follow-up helps catch and address any deterioration early.

Some causes of heart failure, such as a correctable valve problem or an irregular heart rhythm, can improve substantially or sometimes normalise once treated. In most cases, though, heart failure is a chronic condition managed long-term with medication and lifestyle measures rather than fully cured. Early diagnosis and treatment give the best chance of improving heart function and symptoms.

Treatment usually combines medications such as diuretics to reduce fluid overload, along with drugs that protect and support the heart, including ACE inhibitors or ARNIs, beta-blockers, and mineralocorticoid receptor antagonists. Lifestyle measures, including reducing salt intake and staying appropriately active, support this medical treatment. Some patients also benefit from specific devices, such as pacemakers or defibrillators, or from surgery for an underlying cause.

Outlook varies depending on the underlying cause, how early it is diagnosed, and how well it responds to treatment, but many people live for years with a good quality of life on appropriate treatment. Regular medication review and prompt treatment of any flare-ups both improve long-term outcomes. Your cardiologist can give a more individual sense of outlook based on your specific test results and response to treatment.

Heart failure with reduced ejection fraction means the heart’s main pumping chamber is weakened and does not contract as forcefully as normal, while heart failure with preserved ejection fraction means the heart squeezes normally but has difficulty relaxing and filling properly between beats. Both cause similar symptoms but sometimes differ in underlying cause and which medications work best. An echocardiogram is typically what distinguishes between the two types.

See a doctor promptly for new or worsening breathlessness, ankle swelling, or unusual fatigue that limits your daily activities. Seek emergency care for sudden severe breathlessness, chest pain, or coughing up pink frothy sputum. A private cardiologist can typically arrange assessment and an echocardiogram within about two weeks, considerably faster in many areas than routine NHS waiting times.