What is Heart Disease?
 

Heart disease is a broad term for a range of conditions that affect your heart's structure, pumping power, and electrical system. There are many types of heart disease including coronary artery disease, heart failure, arrhythmias, heart valve disease, cardiomyopathy, and congenital heart disease. Many of these diseases co-exist due to damaged heart tissue. 
 

Common Causes & Risk Factors
 

Heart disease usually develops over many years as a result of lifestyle habits, genetics, and underlying medical conditions. Major risk factors include:
 

• High Blood Pressure (Hypertension): Puts excessive force on artery walls, damaging them and accelerating plaque buildup.

• High Cholesterol & Triglycerides: Elevated LDL ("bad") cholesterol and low HDL ("good") cholesterol contribute directly to fatty plaque accumulation (atherosclerosis).

• Diabetes, thyroid disease, obesity, amyloidosis, hemachromatosis. 

• Lifestyle Factors: Cigarette smoking or tobacco use, physical inactivity, a diet high in sodium, saturated fats, and processed sugars, and chronic heavy alcohol use.

• Family History & Genetics: A close family history of early heart disease, along with advancing age and biological sex (men face higher risk at younger ages; women's risk increases post-menopause).
   

Warning Signs & Common Symptoms
 

• Chest Pain or Discomfort (Stable Angina): A feeling of pressure, squeezing, fullness, or aching in the center or left side of the chest, often triggered by physical exertion or stress and relieved by rest.

• Shortness of Breath: Feeling winded during everyday activities or while resting.

• Radiating Pain: Discomfort spreading to one or both arms, the back, neck, jaw, or stomach.

• Fatigue & Dizziness: Unexplained, overwhelming fatigue, lightheadedness, or sudden cold sweats.

• Swelling (Edema): Swelling in the lower legs, ankles, or feet, which can indicate that the heart is struggling to pump effectively (heart failure).

Diagnostic Workup & Testing
 

To evaluate heart health, diagnose blockages, and assess heart function, healthcare providers utilize a variety of non-invasive and invasive tests:
 

• Electrocardiogram (ECG / EKG): A quick test that records the electrical signals in your heart to check for arrhythmias or signs of a past or current heart attack.

• Echocardiogram: An ultrasound of the heart that visualizes heart valves, muscle thickness, and pumping efficiency (ejection fraction).

• Cardiac Stress Test: Monitoring your heart's electrical activity and blood pressure while you walk on a treadmill or ride a stationary bike (or using a medication-induced stress test if you cannot exercise) to see how the heart performs under physical demand.

• Coronary Computed Tomography Angiography (CCTA) / Cardiac CT: Specialized imaging to look directly at the coronary arteries for calcium and plaque buildup.

• Invasive Cardiac Catheterization & Angiography: The gold standard test for blockages; a thin tube (catheter) is threaded through blood vessels to the heart, and contrast dye is injected to capture real-time X-ray images of narrowing or blockages in the coronary arteries.

Management & Treatment Strategies
 

• Lifestyle Modifications:

  • Heart-Healthy Diet: Emphasizing fruits, vegetables, whole grains, lean proteins, and healthy fats (like olive oil and fish) while minimizing sodium, trans fats, and added sugars.

  • Smoking Cessation & Regular Exercise: Stopping tobacco use entirely and participating in a structured exercise program (or cardiac rehabilitation).
     

• Pharmacotherapy:

  • Blood Pressure Medications: ACE inhibitors, ARBs, and negative inotropes= beta-blockers calcium channel blockers to reduce the heart's workload and control pressure.

  • Cholesterol-Lowering Drugs: Statins (e.g., atorvastatin) to lower LDL cholesterol and stabilize plaque.

  • Antiplatelet Therapy: Medications like low-dose aspirin or clopidogrel to prevent blood clots from forming on narrowed plaques.

  • Direct Oral Anticoagulants (DOACs) – e.g., Apixaban (Eliquis) or aspirin for atrial fibrillation

  • Rate Control Medications: Drugs like beta-blockers (e.g., metoprolol, carvedilol) or non-dihydropyridine calcium channel blockers (e.g., diltiazem, verapamil) used to slow down a rapid ventricular response and keep the resting heart rate within a safe target range.

  • Rhythm Control Medications (Antiarrhythmics): Drugs like amiodarone, dronedarone, flecainide, or sotalol used to restore and maintain a normal sinus rhythm, often supplemented by catheter ablation procedures.

  • Cardiac Myosin Inhibitors: mavacamten (Camzyos) - directly target the cellular mechanisms causing hyper-contraction in hypertrophic cardiomyopathy
     

• Interventional & Surgical Procedures:

  • Angioplasty and Stenting: A minimally invasive procedure where a tiny balloon is inflated to open a blocked artery, and a wire mesh tube (stent) is placed to keep it open.

  • Coronary Artery Bypass Grafting (CABG): Open-heart surgery where a healthy blood vessel from another part of the body is used to route blood around a blocked coronary artery.

  • Pacemaker for arrythmias

  • Left atrial appendage closure devices (Wachman) for nonvalvular Afib

  • Cardiac ablation for Afib