Coronary artery disease (CAD) is the most common type of heart disease and a leading cause of heart attack. CAD occurs when plaque—a combination of cholesterol, fat, and calcium—builds up inside the coronary arteries, narrowing them and reducing blood flow to the heart muscle. Reduced blood flow can cause chest pain/angina, shortness of breath, and other complications. If left untreated, CAD can lead to a heart attack, heart failure, or sudden cardiac death.
Causes and Risk Factors
CAD develops over time and is influenced by multiple factors. Common risk factors include:
- High blood pressure
- High cholesterol
- Diabetes
- Smoking
- Obesity
- Sedentary lifestyle
- Age (risk increases after 45 for men and 55 for women)
- Family history of heart disease
Managing these risk factors is key to preventing disease progression and improving long-term outcomes.
Symptoms of Coronary Artery Disease
Symptoms can vary depending on the severity of artery narrowing. Some patients experience no symptoms until a significant blockage occurs. Common warning signs include:
- Chest pain or discomfort
- Shortness of breath
- Fatigue during exertion
- Pain in the jaw, neck, shoulder, or arms
- Heart palpitations or irregular heartbeat
- Dizziness or fainting
Because CAD can be silent in early stages, routine screening and cardiac evaluation are important, especially for individuals with multiple risk factors.
Diagnosis of CAD
Accurate diagnosis involves a combination of patient history, physical examination, and diagnostic testing. Premier Cardiology offers comprehensive testing options, including:
- EKG – Measures electrical activity of the heart
- Stress Test – Evaluates heart function under exercise or pharmacologic stress
- Echocardiogram – Assesses heart structure and pumping ability
- CT Scan – Detects arterial plaque and narrowing
- Cardiac Catheterization / Angiogram – Directly visualizes coronary arteries
- Nuclear Stress Test – Assesses blood flow to heart muscle
- MRI – Detailed imaging of cardiac tissue
Treatment Options
Treatment is tailored to disease severity and patient-specific factors.
Lifestyle Modifications
- Heart-healthy diet low in saturated fats and cholesterol
- Regular exercise, as advised by a cardiologist
- Smoking cessation
- Weight management and stress reduction
Medications
- Statins to lower cholesterol
- Beta-blockers to reduce heart workload
- ACE inhibitors or ARBs to control blood pressure
- Antiplatelet therapy such as aspirin to prevent clots
- Medications to control arrhythmias
Interventional and Surgical Procedures
For patients with significant arterial blockages, procedures may include:
- Angioplasty and Stenting – Opens narrowed arteries using a small balloon and stent
- Atherectomy – Removes plaque from the arteries
- Coronary Artery Bypass Graft (CABG) – Surgical bypass of blocked arteries
- Fractional Flow Reserve (FFR) or IVUS – Advanced imaging to guide treatment decisions
Preventing Disease Progression
Effective management of CAD requires ongoing care, including regular follow-up, lifestyle modifications, and adherence to prescribed medications. Early intervention and risk factor management can significantly reduce the risk of heart attack and improve overall heart health.