Heart Failure (Weak Heart) – Symptoms, Diagnosis & Treatment
Dr. Praneeth Polamuri, Senior Consultant Interventional Cardiologist, Yashoda Hospital, Secunderabad
What Is Heart Failure?
The term heart failure sounds frightening, but it does not mean that the heart has stopped working.
Think of your heart as a water pump supplying water to an entire building. If the pump becomes weak or stiff, it cannot deliver enough water efficiently.
Similarly, in heart failure, the heart cannot pump enough blood to meet the body's needs or cannot relax properly to fill with blood.
With modern medicines, lifestyle changes, and advanced treatments, many people with heart failure lead active and fulfilling lives.
What Causes Heart Failure?
Heart failure is usually the result of another heart condition that has damaged or weakened the heart.
Common causes include:
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Previous heart attack
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Cardiomyopathy (heart muscle disease)
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Diabetes
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Long-standing irregular heart rhythms (Atrial Fibrillation)
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Congenital heart disease
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Certain viral infections affecting the heart
Identifying and treating the underlying cause is an important part of managing heart failure.
Types of Heart Failure
Heart Failure with Reduced Ejection Fraction (HFrEF)
The heart becomes weak and pumps less blood with each heartbeat.
Heart Failure with Preserved Ejection Fraction (HFpEF)
The heart pumps normally but becomes stiff and does not fill properly.
This type is common in:
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Older adults
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Patients with high blood pressure
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Diabetes
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Obesity
Right-Sided Heart Failure
The right side of the heart struggles to pump blood effectively, leading to swelling in the legs, abdomen, and sometimes the liver.
Common Symptoms of Heart Failure
Symptoms often develop gradually and may worsen over time.
You may notice:
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Shortness of breath while walking
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Difficulty climbing stairs
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Breathlessness while lying flat
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Waking up suddenly at night feeling breathless
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Fatigue and low energy
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Swelling of the feet or ankles
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Rapid weight gain due to fluid retention
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Persistent cough, especially at night
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Reduced exercise capacity
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Loss of appetite or abdominal bloating
When Should You See a Cardiologist?
Consult a cardiologist if you experience:
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Increasing breathlessness
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Swelling of the feet
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Difficulty lying flat due to breathlessness
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Unexplained fatigue
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Recurrent hospital admissions
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Weight gain of more than 2–3 kg over a few days
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Persistent cough without another explanation
Early diagnosis can prevent complications and improve quality of life.
How Is Heart Failure Diagnosed?
Clinical Examination
Your doctor will assess your symptoms, blood pressure, heart sounds, and signs of fluid retention.
Echocardiogram - This is the most important test for evaluating heart failure.
It measures:
Heart pumping function (Ejection Fraction)
Heart chamber size
Heart muscle movement
Electrocardiogram (ECG) - Detects rhythm abnormalities and evidence of previous heart attacks.
Blood Tests
Tests such as BNP or NT-proBNP help support the diagnosis of heart failure.
Kidney function, electrolytes, thyroid function, and blood counts may also be assessed.
Chest X-ray - Shows heart enlargement or fluid in the lungs.
Coronary Angiography or CT Coronary Angiography - May be recommended if blocked heart arteries are suspected as the cause.
Treatment of Heart Failure
Heart failure treatment has advanced significantly in recent years. The goal is to improve symptoms, reduce hospital admissions, and help people live longer and better.
Lifestyle Changes
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Reduce salt intake
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Limit excess fluids if advised
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Exercise regularly under medical guidance
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Maintain a healthy weight
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Stop smoking
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Limit alcohol
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Get vaccinated against influenza and pneumonia when appropriate
Medications - Modern heart failure medicines can slow disease progression and improve survival.
Your treatment plan may include:
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ACE inhibitors or ARBs, ARNI (Sacubitril/Valsartan)
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Beta blockers
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Mineralocorticoid receptor antagonists (MRAs)
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SGLT2 inhibitors
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Diuretics ("water tablets") to reduce fluid overload
Never stop these medicines without consulting your doctor.
Devices
Some patients benefit from:
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Cardiac Resynchronization Therapy (CRT) to improve the coordination of heart contractions
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Implantable Cardioverter Defibrillator (ICD) to reduce the risk of life-threatening heart rhythm disturbances
Procedures
Depending on the cause, treatment may include:
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Coronary artery bypass surgery
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TAVR for severe aortic stenosis
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Treatment of abnormal heart rhythms
Living Well with Heart Failure
Heart failure is often a long-term condition, but many people continue to enjoy active lives with appropriate treatment.
Simple daily habits can make a big difference:
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Take medicines regularly
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Monitor your weight daily
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Eat a low-salt diet
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Stay physically active
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Keep follow-up appointments
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Report worsening symptoms early
A Reassuring Thought
A diagnosis of heart failure is not the end of the road. Thanks to major advances in medications, devices, and minimally invasive procedures, many patients experience significant improvement in symptoms, fewer hospitalizations, and a better quality of life. Early diagnosis and regular follow-up are the keys to successful treatment.
Frequently Asked Questions (FAQ)
1. What is heart failure?
Heart failure is a condition in which the heart cannot pump blood effectively or cannot relax properly to fill with blood.
2. Does heart failure mean my heart has stopped working?
No. The heart is still working, but it is less efficient than normal.
3. What are the early symptoms of heart failure?
Common symptoms include breathlessness, fatigue, swelling of the feet, reduced exercise capacity, and difficulty lying flat.
4. Can heart failure be cured?
Some causes are reversible, but in most cases heart failure is managed rather than cured. Modern treatments can significantly improve symptoms and quality of life.
5. What causes heart failure?
Common causes include coronary artery disease, previous heart attack, high blood pressure, valve disease, diabetes, and cardiomyopathy.
6. What is ejection fraction (EF)?
Ejection fraction is the percentage of blood pumped out of the heart with each beat. It is measured using an echocardiogram and helps assess heart function.
7. What is a normal ejection fraction?
A normal ejection fraction is usually between 50% and 70%. Your doctor will interpret this in the context of your overall heart health.
8. Can someone have heart failure with a normal ejection fraction?
Yes. This is called Heart Failure with Preserved Ejection Fraction (HFpEF) and is common in older adults and people with hypertension or diabetes.
9. What foods should I avoid if I have heart failure?
Limit salt, packaged foods, processed meats, pickles, salty snacks, and excess fluids if advised. A diet rich in fruits, vegetables, whole grains, and lean protein is recommended.
10. Can exercise help heart failure?
Yes. Regular, supervised physical activity improves stamina, quality of life, and overall heart health.
11. Why do my feet swell in heart failure?
When the heart cannot pump efficiently, fluid may accumulate in the legs, ankles, and feet.
12. Why do I become breathless while lying flat?
Fluid can build up in the lungs when lying down, making breathing more difficult. This is a common symptom of heart failure.
13. Can heart failure improve?
Yes. Many patients experience significant improvement with medications, lifestyle changes, and treatment of the underlying cause.
14. Can blocked arteries cause heart failure?
Yes. Reduced blood flow to the heart muscle can weaken the heart and lead to heart failure.
15. Can valve disease cause heart failure?
Yes. Severe valve disease can strain the heart and eventually cause heart failure if left untreated.
16. Will I need lifelong medication?
Many patients require long-term treatment to keep symptoms under control and protect heart function.
17. What is CRT?
Cardiac Resynchronization Therapy (CRT) is a specialized pacemaker that helps coordinate the heart's pumping action in selected patients with heart failure.
18. What is an ICD?
An Implantable Cardioverter Defibrillator (ICD) is a device that detects and treats life-threatening heart rhythm disturbances.
19. When should I go to the hospital?
Seek urgent medical attention if you develop severe breathlessness, chest pain, fainting, rapid weight gain, or worsening swelling.
20. Can I live a normal life with heart failure?
Yes. Many people with heart failure continue to work, travel, and enjoy everyday activities with appropriate treatment and regular follow-up.
21. Can heart failure be reversed?
Some causes, such as blocked arteries, uncontrolled hypertension, or valve disease, can be treated, allowing heart function to improve. However, many patients require ongoing treatment to manage heart failure effectively.
22. What is the life expectancy of someone with heart failure?
Life expectancy varies depending on the cause, severity, age, and response to treatment. Early diagnosis and modern therapies have significantly improved long-term outcomes.
23. What is the best treatment for heart failure?
Treatment typically combines lifestyle changes, medications, and, when appropriate, procedures such as angioplasty, valve intervention, CRT, or ICD implantation.
24. Can heart failure be prevented?
Yes. Controlling blood pressure, diabetes, cholesterol, maintaining a healthy lifestyle, and treating heart disease early can reduce the risk.
25. Is heart failure hereditary?
Some forms of cardiomyopathy can run in families. If there is a strong family history, screening may be recommended.
26. Can diabetes cause heart failure?
Yes. Diabetes significantly increases the risk of developing heart failure, even without a prior heart attack.
27. Can heart failure cause kidney problems?
Yes. The heart and kidneys work closely together. Reduced heart function can affect kidney function, and kidney disease can worsen heart failure.
28. Can I travel if I have heart failure?
Many patients can travel safely once their condition is stable. Discuss travel plans with your cardiologist, especially for long-distance or air travel.
29. How often should I have an echocardiogram?
The frequency depends on your condition. Your cardiologist will recommend follow-up imaging based on your symptoms and treatment response.
30. When should I consult a heart failure specialist?
You should seek specialist care if symptoms worsen despite treatment, you experience repeated hospital admissions, or advanced therapies such as CRT, ICD, valve intervention, or coronary revascularization may be needed.
Heart Failure Treatment in Hyderabad
Heart failure requires comprehensive and individualized care. Dr. Praneeth Polamuri evaluates patients with breathlessness, reduced heart function, swelling, and fatigue to identify the underlying cause and develop a personalized treatment plan. Care includes advanced medications, coronary interventions, valve therapies, cardiac devices, and preventive strategies to improve symptoms, reduce hospitalizations, and enhance quality of life.
