Heart disease is a major global health concern, encompassing many different conditions that severely impact the heart’s function. Understanding this complex group of diseases, from the most common types like Coronary Artery Disease to life-threatening complications like heart failure, is the first crucial step toward prevention and effective management.
This guide explores the causes, symptoms, diagnostic methods, and essential treatments available to maintain a healthy heart and secure a better quality of life.
Key Takeaways
- Heart disease is a term for heart problems affecting the heart’s arteries, muscle, valves, and electrical system, with Coronary Artery Disease (CAD) being the most common type, often leading to a heart attack.
- Heart disease symptoms are racing or slow heartbeats, lightheadedness, chest discomfort, and fainting, which should prompt immediate medical attention.
- Heart disease treatments range from essential lifestyle changes and prescription medications to advanced procedures like open-heart surgery or device placement, all tailored to the individual’s specific needs and condition.
สารบัญบทความ
- What is heart disease?
- Type of heart diseases?
- Symptoms of heart disease
- What causes heart diseases?
- Risk factors
- How to diagnose heart disease?
- What are heart disease treatments?
- How can you prevent heart diseases?
- Complications of heart diseases
- Heart disease at Phyathai Hospital
What is heart disease?
What is heart disease? Heart disease refers to several conditions that impact the function of the heart. The most prevalent form is Coronary Artery Disease (CAD), often called coronary heart disease . CAD causes the arteries to become narrow, which can ultimately result in a heart attack.
However, heart disease isn’t limited to arteries. It can also affect the human heart‘s muscle, its valves, or its electrical rhythm system. Your specific symptoms and the treatment you receive are entirely dependent on the type of disease present.
When the heart isn’t working correctly, it struggles to efficiently pump the necessary blood, oxygen, and nutrients throughout the body. Essentially, your heart delivers the vital fuel required for all your body’s systems to operate. A compromised heart affects everything.
Type of heart diseases?

Heart disease includes several specific types of conditions including
- Coronary Artery Disease (CAD): This happens when fatty material builds up in the blood vessels supplying the heart, causing them to narrow.
- Heart Failure: In this condition, the heart cannot pump blood efficiently enough to meet the body’s total needs.
- Heart Valve Diseases: This involves valves that are too tight or do not close properly, which slows down the necessary blood flow. A specific example is aortic stenosis, where the aortic valve narrows, restricting blood flow from the heart to the rest of the body.
- Cardiomyopathy: This is when the heart muscle becomes stiff or thick, preventing it from pumping blood effectively.
- Arrhythmias: These are abnormal heart rhythms where the heart does not beat in a smooth, coordinated way.
- Pericardial Issues: These occur when the protective sac around the heart (the pericardium) becomes stiff or inflamed, putting pressure on the heart itself.
- Congenital Heart Disease: These are problems with the heart’s structure that developed before birth, which interfere with the normal blood circulatory system.
Symptoms of heart disease
The signs of heart disease can vary significantly depending on the specific type a person has. One major category of symptoms is caused by irregular heartbeats, which are known as arrhythmias. Symptoms of heart arrhythmia (including atrial fibrillation) can include
- Dizziness.
- Chest pain or a feeling of discomfort in the chest area.
- A racing heartbeat.
- Shortness of breath.
- Lightheadedness.
- Fainting, or a sensation of nearly fainting.
- A fluttering or “flip-flopping” feeling in the chest.
- A slow heartbeat.
What causes heart diseases?

Heart disease results from various problems that affect the heart, such as damage to the muscle tissue, scarring, or blockages in the arteries. The root causes differ based on the specific type of heart condition. Factors and conditions that can lead to heart disease include
- Issues passed down through genetics such as heart defects.
- The natural process of aging.
- Problems with kidney function.
- Infections that occur both inside and outside the heart, which can lead to inflammation of the heart muscle known as myocarditis.
- Thyroid gland imbalances.
- Autoimmune diseases.
- Complications experienced during pregnancy.
- The consumption of addictive substances.
- Persistently high blood pressure.
- Side effects from specific medications, such as chemotherapy.
Risk factors
The chance of developing heart disease increases when certain risk factors are present. Risk factors include:
- A family history of heart disease in the biological family.
- Being physically inactive.
- Eating unhealthy foods.
- A BMI (body mass index) higher than 25 (considered having overweight).
- Conditions like high cholesterol, high blood pressure, or Type 2 diabetes.
- Having a substance use disorder.
- Using tobacco products.
How to diagnose heart disease?
Diagnosing heart disease begins with a healthcare professional conducting a physical examination. They will discuss the patient’s symptoms and gather information about their personal health history and their biological family’s health history.
To confirm a diagnosis and determine the specific type of disease, several diagnostic tests may be performed:
- Electrocardiogram (EKG or ECG): Measures the electrical activity of the heart.
- Ambulatory monitors: Portable devices worn for a day or more to record the heart’s rhythm during daily activities.
- Echocardiogram: Uses sound waves to create moving pictures of the heart.
- Cardiac computerized tomography (CT): Uses X-rays and computer processing to create detailed images of the heart.
- Heart magnetic resonance imaging (MRI): Uses strong magnetic fields and radio waves to create detailed images of the heart structure.
- Blood tests: Check the levels of cholesterol and other substances in the blood.
- Stress test: Monitors the heart while the patient exercises or is given medication to simulate exercise.
- Cardiac catheterization: A procedure where a thin tube is inserted into a blood vessel to check for blockages or measure heart pressures.
What are heart disease treatments?

The treatment plan for heart disease is always tailored to the specific heart problem an individual has. A healthcare provider may recommend changes to daily habits, prescribe medication, or suggest a surgical procedure. Heart disease treatments often involve:
- Lifestyle Changes: This includes modifications such as reducing saturated fats in meals, quitting the use of tobacco products, or beginning a walking program for exercise.
- Medicine: Medications can be used to lower blood pressure and cholesterol levels. Other specific medicines are available to manage conditions like heart failure or abnormal heart rhythms. It is essential to follow the prescription instructions exactly as given by the provider.
- Surgeries or Procedures: Treatment may involve open-heart surgery, minimally invasive surgery, or an ablation (a procedure to correct electrical problems). Other medical procedures include catheterization, the placement of internal devices, or cardioversion (using an electrical shock to reset the heart rhythm).
- Cardiac Rehab: This is a supervised program that helps strengthen the heart, often after a heart attack. It provides extra support for lifestyle changes through nutritional advice and monitored exercise sessions.
The time needed for recovery depends on the type of surgery or procedure performed. Recovery from minor procedures may take only a few days. However, recovering from minimally invasive surgery can take two to four weeks, while open-heart surgery typically requires six to 12 weeks for recovery.
How can you prevent heart diseases?
Adopting certain lifestyle changes is one of the most effective ways to both manage existing heart disease and prevent it from developing in the first place. To support heart health, consider these important tips:
- Exercise for at least 30 minutes on most days of the week.
- Prioritize getting good quality sleep. Adults should aim for 7 to 9 hours of sleep daily.
- Work to maintain a healthy weight.
- Do not smoke or use tobacco products.
- Consume a diet that is low in salt and saturated fat.
- Find ways to reduce and effectively manage stress.
- Keep existing conditions like high blood pressure, high cholesterol, and diabetes under control.
Complications of heart diseases
When heart disease is left untreated or progresses, it can lead to a variety of serious, life-threatening complications. In some cases, one type of heart disease can even cause another type to develop. Complications that can arise from heart disease include
- Heart Attack: A sudden blockage of blood flow to the heart muscle.
- Heart Failure: A condition where the heart cannot pump enough blood to meet the body’s needs.
- Cardiogenic Shock: A severe state where the heart suddenly can’t pump enough blood to supply the body.
- Cardiac Arrest: The heart stops beating suddenly.
- Heart Valve Disease: Issues with the valves that control blood flow within the heart.
- Cardiomyopathy: Disease of the heart muscle that makes it harder for the heart to pump blood.
- Stroke: Damage to the brain from an interruption of its blood supply. This includes an ischemic stroke, which is often caused by a blood clot linked to heart conditions.
- Abnormal Heart Rhythms (Arrhythmias): Issues where the heart beats too fast, too slow, or irregularly.
- Pulmonary Hypertension: High blood pressure in the arteries of the lungs.
- Damage to your Kidneys or Liver: Since the heart struggles to deliver proper blood flow, other vital organs can be harmed.
Heart disease at Phyathai Hospital
Heart disease is a broad term for many serious conditions affecting the heart’s function, often stemming from preventable risk factors like poor diet and inactivity, alongside genetics. Symptoms range from chest discomfort to fainting, and diagnosis relies on specialized tests like EKG and cardiac catheterization. Treatment is comprehensive, including medications, crucial lifestyle changes, and necessary surgical procedures, emphasizing prevention through healthy habits to avoid life-threatening complications like heart failure and stroke.
For expatriates and international clients working or living in Thailand, accessing heart care is essential. Phyathai Hospital offers services tailored for international patients, including multilingual staff ready to communicate in English and many other languages. They provide comprehensive health check-up packages and treatment plans at an accessible price point compared to other private hospitals in the region, ensuring high-quality, trustworthy care.
- Call Center 1772 (press 9 for ENG)
- Email: [email protected]
- Facebook Page: Expat Health & Wellness by Phyathai
References
- Cardiovascular disease. (2025, April 22). NHS. https://www.nhs.uk/conditions/cardiovascular-disease/
- Heart Disease. (2025, September 19). Cleveland Clinic. https://my.clevelandclinic.org/health/diseases/24129-heart-disease
- Mayo Clinic Staff. (2024, August 13). Heart disease. Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/heart-disease/symptoms-causes/syc-20353118
