About Angina (Chest Pain)

Overview

Angina is a symptom characterized by tightness, squeezing, pressure, or pain in the chest. It occurs when an area of the heart muscle does not receive enough oxygen-rich blood. Angina is not a disease itself but rather a sign of an underlying condition, typically coronary heart disease (CHD). The most common cause of angina is the narrowing or blockage of one or more coronary arteries due to atherosclerosis, which is the buildup of fatty deposits in the blood vessels. Angina can also manifest as discomfort or pain in other areas such as the shoulders, arms, neck, jaw, or back. It may start off mild and gradually worsen or come on suddenly. While angina is not usually life-threatening on its own, it can resemble the symptoms of a heart attack and should be promptly evaluated by a healthcare professional if it occurs unexpectedly, does not go away, or does not respond to rest or medication.

Causes and Risk Factors

Angina is primarily caused by reduced blood flow to the heart muscle, usually due to narrowed or blocked coronary arteries. This reduced blood flow can be caused by:

• Atherosclerosis: Build-up of plaque in the arteries, leading to narrowing and decreased blood flow.
• Coronary artery spasm: Temporary narrowing or constriction of the coronary arteries, reducing blood flow to the heart.
• Microvascular dysfunction: Dysfunction of the small blood vessels in the heart, leading to inadequate blood supply.

Non-modifiable risk factors are risk factors that cannot be changed. Non-modifiable risk factors of angina:

• Age: The risk of angina increases with age.
• Gender: Men are more likely to develop angina than women, although women's risk increases after menopause.
• Family history: Having a close relative (parent or sibling) with a history of heart disease increases the risk.

Modifiable risk factors are risk factors that can be changed or influenced. Modifiable risk factors of angina:

• Smoking: Smoking damages blood vessels and decreases oxygen supply to the heart.
• High blood pressure: Increased pressure in the arteries can lead to atherosclerosis and reduced blood flow.
• High cholesterol levels: Elevated levels of LDL cholesterol can contribute to plaque formation in the arteries.
• Diabetes: Uncontrolled diabetes can damage blood vessels and increase the risk of atherosclerosis.
• Obesity: Excess weight puts strain on the heart and increases the risk of other risk factors like high blood pressure and diabetes.
• Sedentary lifestyle: Lack of physical activity can contribute to obesity and increase the risk of other risk factors.
• Unhealthy diet: A diet high in saturated and trans fats, cholesterol, sodium, and refined sugars can contribute to atherosclerosis.

Remember, these are general descriptions. Consult with your healthcare professional for personalized information regarding your individual situation.

Symptoms

The most common early symptoms of angina include:

• Chest pain or discomfort
• Pain described as pressure, tightness, squeezing, or burning in the chest
• Difficulty pinpointing the exact location of the pain
• Pain that starts behind the breastbone and intensifies over a few minutes

As angina progresses or becomes more severe, additional symptoms may occur. These can include:

• Shortness of breath
• Extreme tiredness
• Light-headedness or fainting
• Nausea or feeling sick to the stomach
• Heartburn or indigestion
• Sweating
• Weakness

It is important to note that symptoms of angina can also be similar to those of a heart attack. If you experience chest discomfort that does not go away with rest or medication, it is crucial to seek immediate medical attention by calling 9-1-1. Angina can lead to complications such as a heart attack, which can be life-threatening. It is always best to consult with a healthcare professional for an accurate diagnosis and appropriate management.

Diagnosis

To diagnose angina, healthcare professionals commonly perform the following examinations, tests, and procedures:

• Medical history: Gathering information about your medical and family history can provide valuable insights into your condition.
• Physical exam: The healthcare provider will assess your symptoms, including examination of your heart and lungs.
• Electrocardiogram (ECG): This test records the electrical activity of your heart and helps determine if there is reduced blood flow to the heart.
• Blood tests: These tests can measure the levels of certain enzymes, such as troponin, which indicate heart damage.

Additional examinations, tests, and procedures to determine the stage or severity of angina may include:

• Cardiac stress tests: These tests involve physical exertion on a treadmill or through medication to evaluate how well your heart handles stress.
• Cardiac catheterization: A catheter is inserted into your heart's blood vessels to examine the heart muscles and detect any blockages or narrowing of the blood vessels.
• Radionuclide myocardial perfusion imaging: This imaging test shows how well blood flows through the heart muscles.

It's important to note that these examinations, tests, and procedures should be recommended by your healthcare provider based on your specific situation. They will assess your symptoms, medical history, and physical exam findings to determine the appropriate diagnostic approach.

Medication dosing may be affected by many factors. Check with your healthcare professional about dosing for your individual situation. Other side effects can occur. Check with your healthcare professional or read the information provided with your medication for additional side effect information.

Treatment Options

The goals of treatment for angina are to lower the risk of heart attacks, prevent complications and improve the individual's overall well-being. This can be achieved through the following:

• Medications: These medications work by relaxing blood vessels, reducing strain on the heart, lowering blood pressure, and preventing blood clots.
  • Nitrates: Nitrates such as nitroglycerin help relax and widen blood vessels, improving blood flow and relieving angina symptoms.
  • Statins: Statins are used to lower cholesterol levels, reducing inflammation in the arteries.
  • Beta-blockers
  • Calcium channel blockers
  • Angiotensin-converting enzyme inhibitors
  • Angiotensin receptor blockers
• Lifestyle changes:
  • Quitting smoking
  • Maintaining a healthy weight
  • Checking cholesterol levels regularly
  • Managing stress
  • Exercising regularly
  • Adopting a heart-healthy diet
• Therapeutic procedures:
  • Angioplasty: This involves inserting a balloon or stent into the artery to keep it open and improve blood flow.
  • Coronary artery bypass graft surgery: This creates a detour around blocked arteries to restore blood flow.

It's important to note that specific treatment plans should be tailored to individual needs and discussed with a healthcare professional. Medication dosing may be affected by many factors. Check with your health care professional about dosing for your individual situation. Other side effects can occur. Check with your health care professional or read the information provided with your medication for additional side effect information.