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Cardiovascular Disease: Types, Causes, Symptoms and Prevention

Last Updated: May 10, 2023

What is Cardiovascular Disease?

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The term 'cardiovascular disease,' or simply 'CVD,' refers to a set of ailments that affect the heart and blood arteries and can cause a number of issues that can have an impact on a person's general health and wellbeing. Heart and blood vessel problems are included in the category of cardiovascular disease, or CVD for short.

Coronary artery disease, heart failure, stroke, and peripheral artery disease are the most common forms of CVD. In the case of coronary artery disease, the arteries supplying blood to the heart become narrow or blocked, which can result in angina, a condition characterized by chest pain or discomfort.

A heart attack, a potentially fatal emergency, may result from a completely clogged coronary artery. On the other hand, heart failure develops when the heart cannot pump enough blood to meet the body's needs, resulting in exhaustion, shortness of breath, and other symptoms. This may result in fluid accumulation in the lungs and other organs, which can cause symptoms including weariness and shortness of breath.

Stroke happens when there is a disruption or decrease in the blood flow to the brain, which can result in damage to the brain and cause complications such as difficulty in speech, paralysis, and other related problems.

Finally, peripheral artery disease occurs when the blood vessels outside of the heart and brain become narrow or blocked, leading to reduced blood flow to the limbs and other parts of the body.

Types of Cardiovascular Disease

Cardiovascular disease, which is also referred to as CVD, covers an extensive variety of ailments that impact the heart and blood vessels. Some of these conditions can occur simultaneously or lead to other diseases within the group. Listed below are the common types of cardiovascular diseases;

  • Angina: Chest pain caused by reduced blood flow to the heart
  • Arrhythmia: Irregular heartbeat or heart rhythm
  • Congenital heart disease: Heart defects present at birth that affect heart function or structure
  • Coronary artery disease: Arteries that supply blood to the heart become narrow or blocked, leading to chest pain or heart attack
  • Heart attack: Sudden blockage of blood flow and oxygen supply to the heart
  • Heart failure: Inability of the heart to pump enough blood to meet the body's needs
  • Dilated cardiomyopathy: Enlarged heart that cannot efficiently pump blood
  • Hypertrophic cardiomyopathy: Thickening of heart muscle walls leading to blood flow, muscle relaxation, and electrical instability problems
  • Mitral regurgitation: Blood leakage through the mitral valve of the heart during contractions
  • Mitral valve prolapse: Bulging of part of the mitral valve into the left atrium of the heart during contraction leading to mitral regurgitation
  • Pulmonary stenosis: Narrowing of the pulmonary artery that reduces blood flow from the pumping chamber of the heart to the lungs
  • Aortic stenosis: Narrowing of the heart valve that blocks blood flow leaving the heart
  • Atrial fibrillation: Irregular heart rhythm that increases the risk of stroke
  • Rheumatic heart disease: Inflammation of the heart valves caused by a complication of strep throat
  • Radiation heart disease: Damage to the heart valves and blood vessels caused by radiation to the chest

Heart-related arteries, veins, or capillaries may be affected by vascular illnesses, which are regarded as a subset of cardiovascular disease. Peripheral artery disease, deep vein thrombosis, and varicose veins are a few examples of vascular illnesses.

What causes cardiovascular disease?

The term 'cardiovascular disease,' or CVD, refers to a number of illnesses that have an effect on the heart and blood arteries. The development of CVD is attributed to a range of factors that gradually harm the heart and blood vessels. These factors include both modifiable and non-modifiable ones.

Age, sex, and heredity are examples of risk factors for CVD that cannot be changed. As individuals grow older, their likelihood of acquiring CVD increases, with men being more prone to CVD than women. Additionally, certain genetic factors can increase a person's risk of developing CVD, including a family history of the disease.

Modifiable risk factors for CVD include lifestyle choices such as smoking, poor diet, lack of exercise, and excessive alcohol consumption. Smoking can damage the lining of the blood vessels and increase the risk of blood clots, while poor diet can lead to high cholesterol levels and obesity, both of which can contribute to CVD. The absence of physical activity can also elevate the likelihood of developing CVD by causing poor cardiovascular health. Additional modifiable risk factors for CVD consist of high blood pressure, diabetes, and heightened levels of stress.

Elevated blood pressure can damage blood vessels and increase the risk of stroke and heart attack, whereas diabetes can damage blood vessels and nerves that regulate the heart and blood vessels. Last but not least, ongoing stress can cause inflammation in the body, which can aid in CVD development.

Symptoms of cardiovascular disease

Cardiovascular disease (CVD) can produce a range of symptoms, some of which may be life-threatening. In certain cases, CVD may not present any symptoms until a severe event such as a stroke or heart attack takes place. Symptoms of CVD can vary depending on the specific condition or disease that is affecting the cardiovascular system.

Here are some common symptoms of cardiovascular disease;

  • Chest pain or discomfort: This is a common symptom of many types of CVD, including angina and heart attack. Pressure, tightness, or a feeling of tightness in the chest region are common symptoms of chest discomfort.
  • Shortness of breath: This is a typical sign of heart failure, which occurs when the heart cannot pump blood effectively. Several types of CVD can also cause shortness of breath.
  • Fatigue: Heart failure might manifest as weakness or exhaustion, particularly if it gets worse with exercise.
  • Palpitations: Palpitations refer to a sensation of irregular, rapid, or fluttering heartbeat. This can be a symptom of arrhythmia.
  • Dizziness or lightheadedness: This can occur if the heart is not pumping blood efficiently or if blood pressure is too low. It could be a symptom of a variety of CVDs.
  • Swelling in the legs, ankles, or feet: This can indicate heart failure or another condition that affects circulation.
  • Nausea or vomiting: This can be a symptom of a heart attack or heart failure, especially in women.
  • It is important to note that some people may not experience any symptoms of CVD until a serious event occurs, such as a heart attack or stroke.

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Lifestyle tips

Cardiovascular disease is a broad term that refers to a number of conditions that could affect the heart and blood vessels (CVD). While there are certain risk factors that cannot be changed, such as age, family history, and genetics, lifestyle choices can play a significant role in reducing the risk of CVD. Here are some lifestyle tips that can help prevent some of the conditions within CVD;

  • Manage body weight: Carrying extra weight can put a strain on the heart and increase the risk of developing CVD. Even a slight weight loss can help lessen this to some extent. Aim for a weight loss of 5-10% of your body weight to see a noticeable difference in your risk of CVD.
  • Get regular exercise: Exercise is beneficial for the heart and blood vessels, and can help reduce the risk of CVD. To promote heart health and reduce the risk of cardiovascular disease (CVD), the American Heart Association recommends engaging in at least 150 minutes of moderate-to-intense physical activity every week. This can involve various activities like brisk walking, cycling, or swimming.
  • Follow a heart-healthy diet: Maintaining heart health can be aided by eating a balanced diet reduced in added sugars, sodium, and saturated fat. Additionally, incorporating foods rich in polyunsaturated fats and omega-3, such as oily fish, along with an abundance of fruits and vegetables can have a positive impact on heart health.
  • Quit smoking: Also, quitting smoking can greatly lower the risk of acquiring cardiovascular disease. Although giving up smoking can be difficult, there are various tools including counseling, support groups, and nicotine replacement treatment that can be used to assist.

By adopting these healthy lifestyle habits, individuals can effectively reduce their risk of developing CVD and promote overall heart health.

Cardiovascular disease risk factors

The term 'cardiovascular disease' (CVD) refers to a variety of illnesses that affect the heart and blood arteries. The emergence of CVD can be attributed to a variety of risk factors. Some of the common risk factors for CVD are;

  • High blood pressure: When the force of blood against the walls of arteries is too high, it can cause damage to the arteries and increase the risk of heart disease, stroke, and other cardiovascular diseases.
  • Atherosclerosis: This is a condition where plaque builds up inside the arteries, narrowing and hardening them. Atherosclerosis can cause heart attack, stroke, and other CVDs.
  • Smoking: Smoking can cause atherosclerosis and harm to blood vessels. Blood clots, which can result in heart attack and stroke, are also more likely as a result.
  • High blood cholesterol: High levels of LDL cholesterol, often known as 'bad' cholesterol or low-density lipoprotein cholesterol, can lead to atherosclerosis and raise the risk of heart disease and stroke.
  • Diabetes: Due to excessive blood sugar levels that might harm the blood vessels and nerves that control the heart and blood vessels, people with diabetes are more susceptible to develop CVD.
  • Physical inactivity: Obesity, high blood pressure, high cholesterol, and diabetes are all risk factors for CVD and can all be brought on by a lack of physical exercise.
  • Obesity: Because it is linked to other risk factors including diabetes, high blood pressure, and high cholesterol, being overweight or obese can raise the risk of CVD.
  • Stress: Persistent stress can raise heart rate, blood pressure, and inflammation, all of which can hasten the onset of CVD.
  • Air pollution: The risk of CVD has been linked to exposure to air pollution, specifically fine particulate matter.
  • Excessive alcohol consumption: Alcohol abuse can increase the risk of heart disease and stroke as well as blood pressure.

How is cardiovascular disease diagnosed?

Cardiovascular disease is often diagnosed using a combination of physical exam, diagnostic testing, and medical history. A healthcare provider will first gather information about a patient's medical history, including any symptoms or risk factors for CVD. They will also conduct a physical exam to assess the patient's heart rate, blood pressure, and other vital signs. If a healthcare provider suspects CVD, they may order one or more diagnostic tests, such as;

  • Blood tests: These can check for high levels of cholesterol, triglycerides, and other substances that can contribute to CVD.
  • Electrocardiogram (ECG): This non-invasive test captures the heart's electrical activity and can identify irregular heart rhythms and other CVD symptoms.
  • Stress tests: To determine how the heart reacts to exercise, these tests entail watching the patient's heart while they work out, frequently on a treadmill or stationary cycle.
  • Echocardiogram: A test called an echocardiography can detect structural or physiological problems in the heart by creating images of it using sound waves.
  • Cardiac catheterization: This invasive test involves inserting a catheter into the heart to collect information about its function and blood flow, as well as to assess any blockages in the arteries.
  • Coronary angiography: This examination allows doctors to see the coronary arteries and see any blockages or narrowings using dye and x-rays.

By using a combination of these tests, healthcare providers can diagnose CVD and determine the severity of the condition.

What tests might I have for cardiovascular disease?

There are several tests that a healthcare provider may recommend to diagnose cardiovascular disease (CVD) or assess the risk of developing it. The tests can range from simple blood tests to complex imaging studies. The following are some of the most common tests that a healthcare provider may order;

  • Blood tests: Blood tests can measure several markers that are associated with CVD, such as cholesterol levels, triglycerides, blood sugar levels, and inflammatory markers.
  • Electrocardiogram (ECG): The electrical activity of the heart is monitored using a non-invasive test called an ECG. It can detect abnormalities in heart rhythm and structure, such as arrhythmias, atrial fibrillation, and previous heart attacks.
  • Echocardiogram: An echocardiography uses sound waves to provide an image of the heart. It can provide details about the size, structure, and operation of the heart as well as the passage of blood via its chambers and valves.
  • Stress tests: Stress tests can be used to assess how well the heart performs under stress, A healthcare provider may recommend an exercise stress test, which involves walking on a treadmill or riding a stationary bike while monitoring the heart's response, or a pharmacological stress test, which uses medication to simulate exercise.
  • Cardiac catheterization: Cardiac catheterization is an invasive procedure that involves threading a thin tube (catheter) through a blood vessel in the arm or groin and into the heart. It can give precise details on any coronary artery blockages and the blood flow through the heart.
  • CT angiography or MRI angiography: Modern imaging procedures, such as CT or MRI angiography, can produce finely detailed images of the heart and blood vessels to identify any blockages or constriction.

    It is significant to remember that not everyone needs to undergo all of these exams. Based on the patient's symptoms, risk factors, and medical history, a doctor will advise certain tests.

Treatment

Depending on the precise form of cardiovascular disease (CVD) that a person has, there are several therapy options available. Some common options include medication, surgery, and cardiac rehabilitation. Medications are frequently used to lower low density lipoprotein cholesterol, increase blood flow, or control heartbeat. Two surgical options include valve replacement or repair surgery and coronary artery bypass grafting. Exercise recommendations and lifestyle advice may be a part of cardiac rehabilitation.

In order to prevent consequences including hospitalization, heart failure, stroke, heart attack, or death, as well as to lessen the likelihood that the illness will return or get worse, it is important to treat the symptoms as well as these potential problems. A medical professional may also try to increase blood flow by relaxing the arteries, removing obstructions, and regulating heart rhythms, depending on the problem.

Here are some common treatments for CVD;

  • Medications: To assist lower cholesterol levels, lower blood pressure, and treat hypertension, doctors may prescribe drugs such statins, ACE inhibitors, beta-blockers, and diuretics.
  • Surgery: Surgery, such as coronary artery bypass grafting (CABG) or valve repair or replacement, may be necessary in some cases. In order to bypass blocked or congested arteries, a vein or artery from another region of the body is taken and grafted onto the heart. The surgical replacement or repair of damaged heart valves is known as valve surgery.
  • Cardiac rehabilitation: Cardiac rehabilitation is a program that includes exercise, education, and counseling designed to help people recover from heart disease or surgery. Cardiovascular rehabilitation helps patients resume their regular activities while reducing their risk of acquiring new heart conditions.
  • Lifestyle changes: A balanced diet, stopping smoking, maintaining a healthy weight, and engaging in regular exercise are all lifestyle modifications that can help manage CVD and lower the risk of developing future heart issues.

How can I prevent cardiovascular disease?

It is possible to prevent cardiovascular disease (CVD), a dangerous medical illness. The best way to prevent CVD is to address risk factors by adopting a healthy lifestyle. To reduce the risk of CVD, one should consider the following steps;

Reduce the use of alcohol and tobacco: Alcohol and tobacco use are major risk factors for CVD. The risk of having CVD can be considerably decreased by reducing or quitting the use of these substances.

Eat fresh fruit and vegetables: Consume fresh fruit and vegetables to boost heart health and lower your risk of cardiovascular disease. The heart can function better thanks to the essential vitamins and minerals contained in fruits and vegetables.

Reduce salt, sugar, and saturated fat intake: Consuming too much salt, sugar, and saturated fat can increase the risk of CVD. To reduce the risk of CVD, one should avoid processed foods and aim to consume a diet that is low in these substances.

Avoid a sedentary lifestyle: Leading a sedentary lifestyle is a major risk factor for CVD, particularly in children. Frequent exercise can reduce the risk of developing cardiovascular disease (CVD).

By adopting healthy habits and reducing exposure to risk factors, one can significantly reduce the risk of developing CVD later in life.

When should I see my healthcare provider?

If you have any concerns about your heart health or if you have any of the risk factors associated with CVD, you should schedule an appointment with your healthcare provider. Some symptoms to watch out for include chest pain or discomfort, shortness of breath, dizziness, heart palpitations, and swelling in the legs or feet.

Additionally, if you have a family history of heart disease or have experienced a previous heart attack or stroke, it is important to talk to your healthcare provider about monitoring your heart health. Your healthcare provider may recommend regular screenings or diagnostic tests to assess your risk for CVD and catch any potential issues early. Early detection and management of CVD risk factors can improve outcomes and reduce the risk of complications.

Conclusion

A collection of illnesses known as cardiovascular disease (CVD) damage the heart and blood arteries. People of all ages, genders, and ethnicities are affected by it, which is a primary cause of death on a global scale. Many variables, such as high blood pressure, smoking, a poor diet, inactivity, and obesity, are risk factors for CVD.

However, many types of CVD are preventable by addressing these risk factors through lifestyle changes such as reducing alcohol and tobacco use, eating a healthy diet, and exercising regularly. It is crucial to see your healthcare practitioner for an evaluation and therapy if you have any CVD symptoms or a family history of the disease.

Early CVD diagnosis and treatment can lessen complications and improve results. Treatment options for CVD include medication, surgery, and cardiac rehabilitation. By adopting healthy habits and seeking medical care when needed, individuals can take control of their cardiovascular health and reduce their risk of developing CVD.

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Written ByDrx Hina FirdousPhD (Pharmacology) Pursuing, M.Pharma (Pharmacology), B.Pharma - Certificate in Nutrition and Child CarePharmacology
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Reviewed ByDr. Bhupindera Jaswant SinghMD - Consultant PhysicianGeneral Physician
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