Congestive Heart Failure (CHF)

Overview of Congestive Heart Failure

Congestive Heart Failure (CHF) is commonly known as heart failure it is a chronic condition where the heart becomes too weak to pump blood efficiently. This leads to fluid buildup in the lungs, legs and other organs which causes breathing difficulties, fatigue and swelling. CHF is a progressive disease, meaning symptoms worsen over time and making early detection and management crucial for improving life expectancy.

Types of Congestive Heart Failure

CHF is categorised based on how the heart's function is affected:

1. Systolic Heart Failure (HFrEF): Occurs when the heart muscle becomes weak and cannot contract properly to pump blood.

2. Diastolic Heart Failure (HFpEF): The heart muscle becomes stiff, preventing it from filling properly with blood.

3. Right Sided Heart Failure: Affects the right ventricle, leading to fluid accumulation in the legs, abdomen, and liver.

4. Left Sided Heart Failure: Affects the left ventricle, leading to fluid buildup in the lungs, causing shortness of breath.

CHF progresses through four stages (A to D) where early stages may have no symptoms, while advanced stages require intensive treatment.

Symptoms of Congestive Heart Failure

Symptoms vary depending on the stage but commonly include:

Shortness of breath especially during activity or at night

Fatigue and weakness

Swelling in the legs, ankles and feet

Rapid or irregular heartbeat

Persistent cough or wheezing

Sudden weight gain due to fluid retention

Difficulty concentrating or confusion

Causes of Congestive Heart Failure

CHF develops due to conditions that weaken or overwork the heart, such as:

Coronary artery disease, which is blocked arteries.

High blood pressure which forces the heart to work harder.

Diabetes increases heart disease risk.

Heart attack damaged heart muscle.

Valvular heart disease (faulty heart valves).

Congenital heart disease (present from birth).

Obesity and lifestyle factors (poor diet, smoking and alcohol).

Complications in Congestive Heart Failure

If untreated, CHF can lead to severe complications, such as:

Kidney damage or failure (due to reduced blood flow).

Liver congestion (causing fluid buildup).

Pulmonary hypertension (high blood pressure in lung arteries).

Arrhythmias (irregular heartbeat) increasing stroke risk.

Cardiogenic shock (life-threatening drop in blood flow).

Risk Factors of Congestive Heart Failure

Certain factors increase the likelihood of developing CHF:

Age (more common in older adults).

Family history of heart disease.

Smoking and excessive alcohol consumption.

Uncontrolled hypertension.

Obesity and sedentary lifestyle.

Diabetes and kidney disease.

Prevention of Congestive Heart Failure

Although CHF cannot always be prevented, adopting a heart-healthy lifestyle can reduce risk:

Maintain a healthy weight

Eat a low sodium and balanced diet

Exercise regularly

Manage blood pressure and diabetes

Avoid smoking and excessive alcohol consumption

Take prescribed heart medications regularly