What Is Heart Failure?
Despite its name, heart failure does not mean that the heart has stopped working. Instead, it means the heart is unable to pump blood as effectively as the body needs.
When the heart’s pumping ability is reduced, organs and tissues may receive less oxygen-rich blood. As a result, fluid can build up in the lungs, legs, or other parts of the body, leading to symptoms such as breathlessness and swelling.
Heart failure is often a long-term condition that can be managed with appropriate medical care, lifestyle changes, and regular follow-up.
Key Points
- Heart failure occurs when the heart cannot pump blood efficiently.
- It does not mean the heart has stopped beating.
- Common symptoms include breathlessness, fatigue, and swelling of the legs or ankles.
- Diagnosis may involve an ECG, echocardiogram, blood tests, and other heart investigations.
- Treatment depends on the underlying cause and severity of the condition.
What Are the Symptoms of Heart Failure?
Heart failure symptoms often develop gradually, although they can sometimes appear suddenly.
Many people first notice that everyday activities become more tiring than usual or that they become short of breath during activities they previously managed comfortably.
Common symptoms include:
- Shortness of breath during activity or while lying flat
- Fatigue or reduced energy
- Swelling of the feet, ankles, legs, or abdomen
- Rapid weight gain due to fluid retention
- Persistent cough, particularly when lying down
- Reduced ability to exercise
- Loss of appetite or feeling full quickly
- Palpitations in some individuals
Symptoms can vary depending on the severity of heart failure and the underlying cause.
What Causes Heart Failure?
Heart failure is not a disease itself but a condition that develops when another problem affects the heart’s ability to pump blood effectively.
Several heart conditions can lead to heart failure, including:
- Coronary artery disease
- Previous heart attack
- High blood pressure
- Heart valve disease
- Cardiomyopathy (heart muscle disease)
- Certain heart rhythm disorders (arrhythmias)
- Congenital heart disease
- Long-standing uncontrolled diabetes may also contribute to cardiovascular disease
Sometimes, more than one condition contributes to the development of heart failure.
Identifying the underlying cause is an important part of planning appropriate treatment.
How Is Heart Failure Diagnosed?
Diagnosing heart failure involves more than identifying symptoms alone. Your cardiologist will perform a thorough assessment to determine whether your symptoms are related to the heart and, if so, what may be causing them.
Investigations may include:
Clinical Assessment
Your consultation includes a review of your symptoms, medical history, medications, and a physical examination.
Electrocardiogram (ECG)
An ECG records the electrical activity of the heart and may identify heart rhythm abnormalities or evidence of previous heart damage.
Echocardiogram
An echocardiogram is one of the most important investigations for heart failure. It uses ultrasound to evaluate the heart’s structure, pumping function, and heart valves.
Blood Tests
Blood tests may help assess kidney function, thyroid function, electrolyte levels, and other factors that may contribute to your symptoms.
Chest X-ray
A chest X-ray may help identify fluid in the lungs or changes in heart size.
Additional Investigations
Depending on your symptoms, your cardiologist may recommend tests such as a treadmill stress test, cardiac CT, coronary angiography, or other imaging studies.
The most appropriate investigations depend on your individual clinical situation.
How Is Heart Failure Treated?
Heart failure treatment is tailored to the underlying cause, the severity of the condition, and your overall health.
Many people are managed with a combination of medication, lifestyle modifications, and regular follow-up.
Treatment may include:
Medications
Several medications may be prescribed to help:
- Reduce fluid retention
- Improve the heart’s pumping function
- Lower blood pressure where appropriate
- Reduce the workload on the heart
- Manage associated conditions such as arrhythmias
Your cardiologist will explain which medications are suitable for your condition.
Lifestyle Measures
Healthy lifestyle habits play an important role alongside medical treatment.
These may include:
- Reducing dietary sodium if advised
- Monitoring body weight regularly
- Remaining physically active within your doctor’s recommendations
- Stopping smoking
- Limiting alcohol intake where appropriate
- Managing blood pressure, cholesterol, and diabetes
Device Therapy
Some individuals with heart failure may benefit from implanted cardiac devices, such as a pacemaker, implantable cardioverter-defibrillator (ICD), or cardiac resynchronisation therapy (CRT), depending on their condition.
Advanced Heart Failure Management
For selected patients with more advanced heart failure, additional treatments may be considered. These may include Left Ventricular Assist Devices (LVADs) or referral for assessment for heart transplantation when clinically appropriate.
Treatment recommendations are based on each patient’s individual clinical needs.
Can Heart Failure Be Managed Successfully?
Although heart failure is generally a long-term condition, many people are able to manage their symptoms with ongoing medical care and lifestyle adjustments.
Regular follow-up allows your cardiologist to monitor your condition, review medications, and make adjustments if your health changes over time.
Seeking medical advice early when symptoms worsen may help reduce complications and support better day-to-day management.
When Should You See a Cardiologist?
Symptoms of heart failure can overlap with those of other medical conditions, so it’s important to seek assessment if they persist or become more severe.
You should consider seeing a cardiologist if you experience:
- Increasing shortness of breath
- Swelling of the legs or ankles
- Fatigue that limits your daily activities
- Difficulty lying flat because of breathlessness
- Rapid, unexplained weight gain over a few days
- Persistent cough together with breathlessness
- A history of heart disease and new or worsening symptoms
Seek immediate emergency medical attention if you experience severe breathlessness at rest, chest pain, collapse, or sudden confusion.
Frequently Asked Questions
1. Does heart failure mean my heart has stopped working?
No. Heart failure means the heart is not pumping blood as effectively as it should. The heart continues to beat, but its pumping function is reduced.
2. Can heart failure be cured?
Heart failure is often a long-term condition. While it may not always be reversible, treatment can help manage symptoms, improve heart function in some cases, and reduce the risk of complications.
3. What is the most common symptom of heart failure?
Shortness of breath is one of the most common symptoms. Other symptoms include fatigue, swelling of the legs or ankles, and reduced exercise tolerance.
4. Is heart failure the same as a heart attack?
No. A heart attack occurs when blood flow to part of the heart muscle is suddenly blocked. Heart failure describes a condition in which the heart cannot pump blood efficiently. A previous heart attack can sometimes lead to heart failure.
5. Will everyone with heart failure need surgery?
No. Many people are managed with medications and lifestyle modifications. Some individuals may require implanted devices or other procedures depending on the cause and severity of their condition.
Book a Consultation for Heart Failure Assessment
If you’ve noticed increasing breathlessness, swelling of your legs, persistent fatigue, or reduced exercise tolerance, a cardiology assessment can help determine whether these symptoms are related to heart failure or another heart condition.
At Apex Heart Clinic, Dr Daniel Yeo provides consultation, diagnostic evaluation, and ongoing management for heart failure and related cardiovascular conditions. Investigations and treatment recommendations are tailored to each patient’s individual needs.
