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Coronary Artery Disease: The Silent Threat to Hardworking Men with Little Rest

Health-and-beauty01 Nov 2026 17:32 GMT+7

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Coronary Artery Disease: The Silent Threat to Hardworking Men with Little Rest
  • Coronary artery disease can develop without warning signs, especially in men over 40 with risk factors, as plaque in the arteries may rupture and lead to acute coronary artery occlusion.
  • Having no symptoms or a normal EKG does not mean there is no risk. The CT Calcium Score test can detect calcium buildup in the coronary arteries and assess risk even before symptoms appear.
  • Chest pain caused by heart disease or acid reflux may be similar and difficult to distinguish, but key differences exist. Recognizing warning signs helps evaluate the situation and seek appropriate medical care.

According to Thailand’s Ministry of Public Health, approximately 70,000 people die annually from heart and vascular diseases in the country.

Sudden death from coronary artery disease in men over 40 usually results from long-accumulated health risk factors without prior warning signs.

As men enter their 40s, their bodies undergo changes affecting metabolism, blood pressure, and blood lipid management.

Especially when uncontrollable factors like genetics and family history of heart disease or hereditary high cholesterol combine with risky lifestyle behaviors such as

  • chronic stress,
  • prolonged sitting at work,
  • lack of exercise,
  • being overweight or having abdominal obesity,
  • smoking,
  • and consuming foods high in LDL fats and sugar.

These factors accelerate arterial deterioration and plaque buildup in coronary arteries, often progressing silently until causing ischemic heart disease or sudden death.

Coronary artery disease is a silent threat from fatty plaques that may lead to acute heart attacks.

A common misconception is that coronary artery disease results only from gradual fat buildup leading to arterial blockage and heart attack. In reality, the mechanism causing acute myocardial infarction is complex, severe, and much faster, mainly due to instability of"fatty plaque deposits"medically known as"plaque."

Over decades, cholesterol, calcium, and white blood cells accumulate beneath the coronary artery lining, forming atheromatous plaque. This plaque consists of a lipid-rich necrotic core covered by a fibrous cap that isolates harmful components from the bloodstream. However, chronic inflammation from high blood pressure, diabetes, or smoking thins this cap by losing vascular smooth muscle cells, making the plaque vulnerable and unstable (vulnerable plaque).

How to distinguish chest pain from heart disease vs. acid reflux? Which symptoms warrant caution?

Chest pain from acute coronary artery disease and gastroesophageal reflux disease (GERD) often resemble each other, causing confusion and possibly overlooking critical warning signs, delaying diagnosis and treatment.

Key differences:
Acute coronary artery disease
Gastroesophageal reflux disease (GERD)
Symptom characteristics
Severe chest tightness, pressure, as if a heavy weight is pressing down.
Burning sensation in chest and throat, discomfort under the sternum.
Pain radiation location
Often radiates to left arm, shoulder, jaw, neck, or back.
Typically radiates upward along the neck, not to arms or jaw.
Triggering factors
Physical exertion, exercise, heavy lifting, stress.
Eating spicy or fatty foods, lying down after meals.
Duration of symptoms
Sudden onset lasting minutes, possibly worsening.
May last for hours and recur multiple times daily.
Associated symptoms and danger signs
Sweating, cold skin, shortness of breath, dizziness, fainting.
Belching, bitter taste, bloating, difficulty swallowing, chronic cough, hoarseness.
Relief methods
Rest from activity, sublingual vasodilator medication.
Sitting or standing upright, taking antacids.

Although heart disease and acid reflux have distinct symptoms, sometimes distinguishing them is difficult. Men over 40 experiencing unusual chest pain or tightness should not self-diagnose but seek medical evaluation for proper risk assessment and diagnosis.

Recommended heart tests for those over 40?

Coronary artery disease can progress silently until the first acute ischemic event occurs.

Therefore, men over 40, especially those with risk factors, family history of heart disease, or suspicious symptoms, should undergo risk assessment alongside annual health check-ups. Doctors will recommend additional appropriate tests based on individual risk.

1. Electrocardiogram (EKG or ECG)

  • What is EKG: A basic, quick, painless test taking about 10 minutes, attaching electrodes to the chest to record the heart’s electrical activity.
  • Purpose: To detect arrhythmias and early signs of ischemic heart disease or abnormal heart muscle thickening.
  • Limitations: In early coronary artery disease or at rest without chest pain, EKG results may appear normal. Thus, EKG alone cannot fully assess coronary artery disease risk. For deeper analysis, doctors may recommend Exercise Stress Test (EST).

2. Exercise Stress Test (EST), commonly called treadmill test

  • What is EST: The patient walks or runs on a treadmill with increasing speed and incline while heart electrical activity is recorded. This assesses heart response under peak oxygen demand.
  • Purpose: To detect flow-limiting blockages affecting blood circulation.
  • Limitations: EST may not detect small plaques that do not obstruct blood flow but are vulnerable to rupture.

3. Echocardiogram (Echo) uses ultrasound to image the heart.

  • What is Echo: Provides real-time views of heart anatomy, showing muscle contractions, chamber size, and valve function in detail.
  • Purpose: To assess if any heart muscle areas are weakened from past ischemic injury.

4. CT Calcium Score screening for early coronary artery disease risk.

Coronary Artery Calcium Score (CT Calcium Score) uses high-speed CT to detect calcium in coronary artery walls, part of plaque buildup. This early screening is especially useful for asymptomatic men over 40.

  • CT Calcium Score measures coronary artery calcium, indicating early atherosclerosis. Detecting this before symptoms appear helps doctors evaluate risk and plan preventive care to avoid disease progression.disease worsening.
  • The CT Calcium Score test takes about 10–15 minutes.
  • Patients lie on the CT scanner table with electrodes attached to monitor heart rhythm and may need to hold their breath briefly for clear imaging.Advantagesinclude being non-invasive with no pain, no treadmill exercise required, no fasting needed, and no contrast dye injection.
  • Generally, patients are advised to avoid caffeine, smoking, and strenuous exercise for at least 4 hours before to ensure normal heart rate for accurate imaging.
  • Results are given as a score: 0 means no coronary calcium detected and generally low near-term heart disease risk. Higher scores indicate greater calcium buildup, helping doctors assess risk and plan behavior modifications and medications accordingly.

How to prevent coronary artery disease after knowing your risk?

If risk or coronary artery disease is detected, lifestyle changes combined with proper medical care help control risk factors, slow disease progression, and reduce future heart complications.

1. Lifestyle changes

The key approach to prevention and management is"lifestyle modification"to reduce risk factors, including

  • reducing saturated fat intake,
  • limiting very sweet and salty foods,
  • increasing intake of fresh vegetables and non-sweet fruits,
  • regular moderate exercise for 30 minutes a day, 3-5 days a week, helps control weight, reduce abdominal obesity, and improve circulation,
  • managing stress appropriately,
  • ensuring sufficient sleep,
  • limiting alcohol consumption,
  • and quitting smoking completely, which is crucial for long-term vascular health.

2. Lipid-lowering medications

If lifestyle changes are insufficient, doctors may prescribe medications like statins to lower LDL cholesterol and reduce cardiovascular risk, also stabilizing plaques. Antiplatelet drugs are considered individually by weighing benefits of preventing vascular blockage against bleeding risk.

3. Treatment for severe coronary artery blockages

If severe blockage causes ischemia or acute myocardial infarction, doctors may perform balloon angioplasty and place stents to restore blood flow. A catheter is inserted to the blockage site, the balloon inflates to push plaque against the artery wall, and a stent supports the artery to prevent re-narrowing.

For multiple severe blockages unsuitable for angioplasty, coronary artery bypass grafting (CABG) surgery is considered to create new blood flow routes bypassing occlusions."Coronary artery bypass grafting"(CABG) creates new pathways for blood flow around blockages.

How men over 40 can care for their hearts to reduce coronary artery disease risk

Coronary artery disease develops gradually over time, especially after age 40. The concern is not only gradual narrowing but unstable plaque that may rupture suddenly, causing acute occlusion without warning.Knowingyour risk and undergoing appropriate assessments like CT Calcium Score when indicated helps plan early prevention and care. Good heart health starts with understanding and managing risks today.

Information by Dr. Apichai Pongpattanaruk, Board Certified Cardiologist (license no. 22037)Samitivej Sukhumvit Hospital