Heart failure is a prevalent cardiovascular condition affecting millions globally, with an average age of onset at 50 years in Singapore– somewhat earlier than the 60 years observed in Western countries. It develops when the heart cannot pump blood efficiently, leading to a spectrum of health complications, diminished quality of life and reduced survival.
What Happens During Heart Failure?
Heart failure does not mean the heart has stopped working; rather, it means the heart is unable to pump blood as effectively as it should. This inefficiency often results from damage to the heart muscle, commonly caused by coronary artery disease, high blood pressure, or previous heart attacks. Over time, these conditions can weaken or stiffen the heart, diminishing its ability to fill with and eject blood properly. As a result, the body may retain fluid and salt. When this fluid builds up in the arms, legs, ankles, feet, lungs, or other organs, the body becomes congested—a condition commonly referred to as ‘Congestive Heart Failure’.
Symptoms of Heart Failure
Recognising the signs of heart failure is critical for early intervention:
- Breathing Difficulties:
- Shortness of breath during exertion or when lying flat.
- Waking up feeling out of breath.
- Wheezing and persistent coughing, sometimes producing white or pink mucus with spots of blood.
- Swelling:
- Accumulation of fluid causing swelling in the legs, ankles, and feet.
- Swelling in the abdomen and face.
- Very rapid weight gain from fluid buildup.
- Fatigue and Weakness:
- Persistent exhaustion due to the heart’s inability to pump sufficient blood to meet the body’s needs.
- Reduced ability to exercise.
- Digestive Issues:
- Nausea.
- Abdominal bloating.
- Poor appetite.
- Heart Rhythm Abnormalities:
- Rapid or irregular heartbeats, as the heart compensates for reduced pumping capacity.
- Cognitive and Emotional Symptoms:
- Difficulty concentrating or decreased alertness.
- Chest Pain:
- Occurs if heart failure is caused by a heart attack.
What Causes Heart Failure
Heart failure often stems from other medical conditions that damage or overwork the heart. Here are the primary conditions and lifestyle factors that can lead to heart failure:
- Heart-Related Conditions:
- Coronary Artery Disease and Heart Attack: Narrowed or blocked arteries reduce blood flow supplying the heart muscles and can lead to heart attacks, severely affecting heart function.
- Cardiomyopathy: This refers to diseases of the heart muscle that hinder the heart’s ability to pump effectively.
- Heart Valve Disease: Faulty heart valves make the heart work harder, which can eventually lead to failure.
- High Blood Pressure:
- Consistently high blood pressure forces the heart to pump harder, which can weaken it over time.
- Lifestyle Factors:
- Alcohol and Drug Abuse: Excessive alcohol intake and drug use can directly damage the heart muscle.
- Diabetes: Diabetes increases the risk of high blood pressure and coronary artery disease, both of which strain the heart.
- Smoking: Smoking is a strong risk factor for narrowing of the coronary arteries, affecting blood supply to the heart.
- Ageing: As we age, the heart naturally becomes less efficient and more susceptible to heart failure.
Additional Risk Factors:
- Certain Medications and Treatments: Some cancer treatments and anti-inflammatory drugs can contribute to heart failure.
- Other Medical Conditions: Irregular heart rhythms, congenital heart defects, and chronic diseases like HIV can weaken the heart.
- Severe Infections and Allergies: Viral infections that attack the heart muscle, including COVID-19, can lead to heart failure.
Diagnosis and Treatment
Diagnosis: Diagnosing heart failure involves physical exams, blood tests, ECGs, and advanced imaging such as echocardiograms or MRIs to assess the heart’s function.
Treatment may include:
- Medications: ACE inhibitors, ARNI, beta-blockers, SGLT2 inhibitors, mineralocorticoid antagonists and diuretics.
- Surgery or Devices: Pacemakers, defibrillators, or in severe cases, an Artificial Heart Pump (known as Ventricular Assist Device) or heart transplant.
- Lifestyle Adjustments: Quitting smoking, limiting alcohol, staying active, and managing stress through relaxation techniques like meditation or yoga.
Patients can enhance their treatment outcomes with these active management strategies, which include:
- Diet: Adopting a low-salt diet to minimise fluid retention and eating heart-healthy foods to support overall cardiovascular health.
- Physical Activity: Engaging in regular, moderate-intensity exercise to strengthen the heart and improve circulation.
- Fluid Regulation: Carefully monitoring fluid intake to avoid overloading the heart.
- Medication Adherence: Consistent use of prescribed medications to control symptoms and halt progression.
These strategies aim to improve heart health and quality of life by addressing both symptoms and underlying causes of heart failure.
Post-Heart Failure Care
Living with heart failure can be tough, but many people find ways to manage their symptoms and enjoy fulfilling lives. After being diagnosed, it is important to keep up with ongoing care, which may include cardiac rehabilitation and regular check-ups. Your emotional health significantly impacts how well you can manage heart failure; it is normal to feel angry or scared at first, but these feelings often ease as you adapt to your new circumstances.
Staying connected and engaging with family and friends, and actively participating in life and setting achievable activity goals can also enhance quality of life. For those facing advanced heart failure, understanding available treatments and engaging in shared decision-making are critical steps.
Conclusion
Heart failure is undoubtedly serious, but it is also a manageable condition with the right approach. Early detection and proactive management are key to handling it effectively. If you or someone you care about is showing signs of heart failure, do not hesitate to consult a healthcare provider or schedule a screening to assess your risk. With a timely diagnosis, appropriate treatment, and positive lifestyle adjustments, many people continue to enjoy a high quality of life. For personalised advice on managing heart failure and other cardiovascular issues, reach out to The Heart & Vascular Centre. We are here to support you every step of the way.
References
- The Heart & Vascular Centre. (n.d.). Heart failure conditions. Retrieved from https://www.heartvascularcentre.com/types-of-conditions-2/heart-failure-conditions#
- American Heart Association. (n.d.). Heart failure. Retrieved from https://www.heart.org/en/health-topics/heart-failure/
- Mayo Clinic. (n.d.). Heart failure – Symptoms and causes. Retrieved from https://www.mayoclinic.org/diseases-conditions/heart-failure/symptoms-causes/syc-20373142
