Coronary Artery Disease
Coronary artery disease is a common heart condition where the major blood vessels supplying the heart struggle to send enough blood and oxygen. It is typically caused by cholesterol deposits (plaque) in the heart arteries and can lead to chest pain or heart attacks.
Overview
Coronary artery disease is a common heart condition where the major blood vessels supplying the heart struggle to send enough blood and oxygen. It is typically caused by cholesterol deposits (plaque) in the heart arteries and can lead to chest pain or heart attacks.
Understand this condition
The heart is a pump that requires its own constant supply of oxygen-rich blood. In coronary artery disease, the pipes supplying this blood become clogged with fatty deposits. This starvation of oxygen makes it difficult for the heart to pump efficiently.
Why it happens
It begins when the inner lining of an artery is damaged by factors like smoking or high blood pressure. Cholesterol and waste products collect at the injury site, forming a hard shell or plaque. This plaque grows slowly over decades, progressively narrowing the path for blood flow.
Real-world scenarios
- •This often appears as a squeezing sensation in the chest during exercise.
- •People may notice they get winded more easily during routine walks.
- •This can present as unexplained indigestion or heart palpitations during stress.
- •People might feel unusual fatigue that does not improve with rest.
Common vs serious explanations
- •Shortness of breath from being out of shape
- •Chest wall pain from muscle strain or rib injury
- •Heartburn or acid reflux after a large meal
- •General fatigue due to poor sleep or stress
- Myocardial infarction or acute heart attack
- Unstable angina indicating imminent heart damage
- Heart failure due to weakened cardiac muscle
- Aortic dissection requiring emergency surgery
Symptoms
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Causes
- •Plaque buildup in the arteries (atherosclerosis)
- •Inflammation of the blood vessels
- •Damage to the inner layer of coronary arteries
Risk factors
- •High blood pressure and high cholesterol
- •Smoking and tobacco use
- •Diabetes or insulin resistance
- •Sedentary lifestyle and obesity
- •Family history of early heart disease
How it progresses
3 stages- Stage 1 — EarlyMild or intermittent symptoms; easily mistaken for something minor.Often missed
- Stage 2 — ProgressiveSymptoms become more frequent or severe.
- Stage 3 — EstablishedDaily life affected; medical care strongly recommended.
How it's diagnosed
- •Electrocardiogram (ECG/EKG)
- •Echocardiogram
- •Stress testing
- •Cardiac catheterization and angiogram
- •Cardiac CT scan
Treatment options
General educational information only — no dosage advice. Always follow guidance from a qualified clinician.
- •Statins and blood pressure medications
- •Aspirin or blood thinners
- •Angioplasty and stenting
- •Coronary artery bypass graft (CABG) surgery
- •Eating a heart-healthy diet low in saturated fat
- •Regular aerobic exercise as tolerated
- •Quitting smoking and limiting alcohol
- •Managing stress through mindfulness or therapy
- •Lifestyle modifications (diet and exercise)
Complications
- •Long-term damage if untreated
- •Reduced quality of life
- •Worsening symptoms over time
- •Recurrence of coronary artery disease
Prevention
- •Maintain a healthy lifestyle
- •See a clinician for routine check-ups
When to seek help
- •Symptoms persist beyond a few days
- •Symptoms interfere with daily activities
- •New or worsening symptoms appear
- •Concerning changes related to coronary artery disease
- Severe chest pain or pressure (angina)
- Pain radiating to the jaw, neck, or left arm
- Sudden shortness of breath
- Excessive sweating or nausea during exertion
- Fainting or severe lightheadedness
In any emergency, call your local emergency number or go to the nearest emergency department.
Real-world questions
- ›Can Coronary Artery Disease cause headaches?
- ›Is Coronary Artery Disease reversible?
- ›How quickly does Coronary Artery Disease progress?
- ›Is Coronary Artery Disease hereditary?
- ›Can Coronary Artery Disease be prevented?
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Frequently asked questions
Possible causes of Coronary Artery Disease include Plaque buildup in the arteries (atherosclerosis), Inflammation of the blood vessels, Damage to the inner layer of coronary arteries.
Coronary Artery Disease can be serious and may require prompt medical attention, especially if symptoms are severe or worsening.
Duration varies between individuals. Many cases improve with appropriate care, while others may persist longer and require ongoing management.
Coronary Artery Disease typically benefits from medical evaluation and should not be ignored.
Consider seeing a clinician if symptoms are severe, persistent, worsening, or if you have any concerns related to general.
Sources
Information based on general medical references such as:
Last reviewed: May 2026