Quick answer
The main symptom of acute coronary syndrome is sudden chest pain that feels like pressing or squeezing, often spreads to the left arm, jaw, neck, back, or upper abdomen, and does not go away with rest. Other symptoms include shortness of breath, cold sweats, nausea, dizziness, or nearly fainting. In women and older adults, the symptoms can be atypical, such as weakness or discomfort in the upper abdomen.
Certain Signs May Need Urgent Help.
If symptoms are severe or come on suddenly, go to the nearest emergency department right away or call Heart Attack Center 1500 258. Do not wait for a scheduled consultation.
Imagine pain or discomfort in your chest that appears suddenly, as if something heavy were pressing down on it. Many people in Indonesia still mistake this complaint for “masuk angin” (a common Indonesian term for feeling unwell with bloating, chills, and body aches) or “angin duduk” (a folk term for sudden chest pain or tightness). In fact, this condition can be an early sign of Acute Coronary Syndrome (ACS), a heart emergency that requires immediate help.
Acute coronary syndrome can strike anyone, at any time, even without a previous history of heart disease. The faster treatment is given, the greater the patient’s chance of survival. The longer it is delayed, the higher the risk of permanent heart failure or sudden death.
In addition, the national guidelines of PERKI (the Indonesian Heart Association) and international institutions such as Mayo Clinic emphasize that ACS must always be treated as a medical emergency that should never be ignored.
What Is Acute Coronary Syndrome?
Acute Coronary Syndrome (ACS) is a cardiac emergency that occurs when blood flow to the heart muscle is suddenly obstructed, usually due to a blockage in the coronary arteries. This obstruction can cause permanent damage to the heart muscle if it is not treated promptly.
In Indonesia, ACS is one of the main causes of death from cardiovascular disease, as recorded in the Acute Coronary Syndrome Guidelines of PERKI (the Indonesian Heart Association). That is why understanding the types of ACS is very important, so that people can recognize its symptoms early.
Types of Acute Coronary Syndrome
Acute coronary syndrome is not a single disease. Three conditions fall into this category, each with a different level of severity:
- STEMI (ST-Elevation Myocardial Infarction), the most serious form of acute heart attack. The main artery is usually completely blocked, so the damage to the heart muscle is extensive. The ECG usually shows a characteristic ST-segment elevation.
- NSTEMI (Non-ST-Elevation Myocardial Infarction), in which the blockage is only partial or occurs in a smaller artery. There is damage to the heart muscle, but it is not as extensive as in STEMI. ECG changes may be subtle, but cardiac biomarkers such as troponin are usually elevated.
- Unstable Angina (UA), marked by sudden chest pain that often appears at rest and does not improve with the usual medication. Although it has not yet caused permanent damage, unstable angina is a serious warning that a heart attack may happen soon.
Comparison of Acute Coronary Syndrome Types
| Type of ACS | Degree of Blockage | Heart Muscle Damage |
|---|---|---|
| STEMI | Complete (large artery) | Extensive and serious (ST elevation) |
| NSTEMI | Partial / small artery | Limited (elevated troponin) |
| Unstable angina | Partial / mild spasm | No cell death yet |
Why Is It Important to Know the Type?
Understanding the types of acute coronary syndrome helps you understand how quickly action must be taken. For example:
- STEMI almost always requires immediate treatment with an invasive procedure.
- NSTEMI and unstable angina still require close observation and drug therapy to prevent the condition from getting worse.
By knowing the type of ACS, patients and medical staff can make faster and more appropriate decisions, so that lives can be saved.
Symptoms of Acute Coronary Syndrome
Symptoms of acute coronary syndrome often appear suddenly and can be fatal if not treated promptly. Recognizing the signs early is very important so that patients can quickly seek medical help and prevent further damage to the heart.
Main Symptoms
The most typical symptom is sudden chest pain. The pain is usually described as a heavy object pressing on the chest or the chest being squeezed hard. This pain may last more than a few minutes, or come and go, and often spreads to the left arm, jaw, neck, back, or the upper abdomen (the pit of the stomach).
In addition, people with acute coronary syndrome often experience shortness of breath because the heart cannot pump blood properly. Cold sweats, nausea, vomiting, dizziness, and even a feeling of nearly fainting also often accompany this condition. If these symptoms appear suddenly, treat them immediately as a medical emergency.
Symptoms That Are Often Misread
In Indonesia, many people mistakenly regard the symptoms of acute coronary syndrome as masuk angin or angin duduk. This misperception can be very dangerous because it causes patients to receive care too late.
Furthermore, symptoms in women and older adults are often atypical. They may not feel severe chest pain at all, but only mild complaints such as weakness, tiring easily, digestive problems, or discomfort in the upper abdomen. In fact, these seemingly trivial symptoms can be an early sign of acute coronary syndrome. That is why it is important not to dismiss any complaint, especially if it appears suddenly and feels unusual.
Understanding the symptoms of acute coronary syndrome is only the first step. It is just as important to know the underlying causes and risk factors of this condition, so that prevention can start early and the risk of a repeat heart attack can be reduced.
Causes and Risk Factors of Acute Coronary Syndrome
Main Causes of Acute Coronary Syndrome
Acute Coronary Syndrome (ACS) usually occurs because blood flow to the heart muscle is obstructed. This obstruction is triggered by two main mechanisms:
- Atherosclerotic Plaque: Cholesterol, fat, calcium, and inflammatory cells build up in the walls of the coronary arteries. Over time, this buildup forms plaque that narrows the blood vessels and reduces the oxygen supply to the heart.
- Plaque Rupture and Blood Clots: When plaque ruptures, the body responds by forming a thrombus, or blood clot. This clot can suddenly block the artery and trigger a heart attack.
In fact, most cases of ACS begin with the process of atherosclerosis and the rupture of plaque that closes off the artery.
Risk Factors for Acute Coronary Syndrome
Several conditions and habits increase a person’s likelihood of developing ACS, including:
- Hypertension → puts pressure on the artery walls and speeds up damage to the blood vessels.
- High cholesterol → especially LDL (“bad cholesterol”), which speeds up plaque formation.
- Diabetes → high blood sugar levels damage blood vessels and speed up atherosclerosis.
- Smoking → toxic substances in cigarettes speed up inflammation and hardening of the arteries.
- Obesity & an inactive lifestyle → increase risk through high blood pressure, cholesterol, and metabolic disorders.
- Family history → genetic factors and similar lifestyles add to the risk of heart disease.
| Risk Factor | Main Impact |
|---|---|
| Hypertension | Speeds up artery damage |
| High cholesterol | Causes atherosclerotic plaque buildup |
| Diabetes | Damages blood vessels & speeds up atherosclerosis |
| Smoking | Causes inflammation & hardening of the arteries |
| Obesity & a sedentary lifestyle | Disrupts blood pressure, cholesterol, and metabolism |
| Family history | Adds genetic and environmental risk |
Why Should You Be Alert?
By understanding the causes and risk factors, we can be more alert and take preventive steps early. Simple steps such as keeping blood pressure in check, managing your diet, exercising regularly, and quitting smoking can significantly lower the risk of acute coronary syndrome.
Next, let’s discuss “Diagnosis of Acute Coronary Syndrome” to learn how doctors establish the diagnosis and make sure treatment is given on time.
Diagnosis of Acute Coronary Syndrome
Diagnosis of acute coronary syndrome (ACS) must be made immediately because every minute is precious for saving the heart muscle. Doctors usually combine a physical examination with several supporting tests to determine whether there is damage, where the blockage is located, and how severe the condition is.
1. Electrocardiogram (ECG)
An ECG is the main and first test performed on patients with suspected ACS. This device records the heart’s electrical activity through electrodes attached to the skin.
- Purpose: to detect the characteristic patterns of a heart attack, such as ST-segment elevation in STEMI.
- Advantages: fast, non-invasive, and can be done in the emergency department (ER) within minutes.
Ideally, an ECG is performed within 10 minutes of a patient with chest pain arriving at the ER.
2. Cardiac Enzyme Test (Troponin)
A blood test for cardiac enzymes, especially troponin, is the gold standard for establishing a diagnosis of ACS.
- Troponin rises when heart muscle cells are damaged by a lack of oxygen.
- The test is usually repeated within 3 to 6 hours to see the pattern of increase.
The combination of an ECG and troponin is the key to diagnosing ACS.
3. Echocardiography
Echocardiography, or a heart ultrasound, uses sound waves to show the structure and function of the heart.
- Function: to assess heart wall motion, pumping function, and complications such as heart failure.
- Advantages: non-invasive, fast, and can be done while the patient is hospitalized.
Echocardiography helps detect areas of the heart that have been damaged after a heart attack.
4. Cardiac Catheterization (Coronary Angiography)
Cardiac catheterization, or coronary angiography, is an invasive test to directly see the condition of the coronary arteries.
- Procedure: a catheter is inserted through a blood vessel to the heart, then a contrast agent is injected so that the arteries are clearly visible on X-ray.
- Benefits: shows the location and severity of the blockage.
- Follow-up: can be continued with balloon angioplasty or placement of a heart ring (stent).
Coronary angiography is the gold standard for assessing arterial obstruction in ACS.
The Importance of Rapid Diagnosis
A fast and accurate diagnosis is very important because treatment of acute coronary syndrome must begin immediately to prevent permanent damage to the heart muscle.
Once the diagnosis is established, the next step is to determine the treatment of acute coronary syndrome that suits the patient’s condition.
Treatment of Acute Coronary Syndrome
Treatment of acute coronary syndrome (ACS) must be given immediately because every minute of delay can increase the damage to the heart muscle. The goals are to restore blood flow, reduce symptoms, and prevent a repeat heart attack.
1. First Aid
If symptoms such as sudden chest pain, shortness of breath, cold sweats, or nausea appear:
- Immediately contact the emergency department (ER) or a hospital with emergency cardiac facilities.
- Do not delay by assuming it is just masuk angin. Every second counts.
According to PERKI (the Indonesian Heart Association), the principle of time is muscle emphasizes that the sooner a patient receives treatment for acute coronary syndrome, the greater the chance of optimal heart recovery.
2. Medical Therapy
Once at the hospital, the doctor will determine the therapy based on the patient’s condition.
Medications
- Aspirin to reduce blood clotting.
- Anticoagulants & antiplatelets keep blood flowing smoothly.
- Nitroglycerin helps widen blood vessels and relieve chest pain.
- Additional medications (for example, beta blockers or ACE inhibitors) are given to stabilize the heart.
The American Heart Association (AHA) emphasizes that an appropriate combination of drug therapy can lower the risk of ACS complications.
Percutaneous Coronary Intervention (PCI) / Angioplasty With Stent
- This procedure opens the blockage using a small balloon, then places a stent to keep the blood vessel open.
- PCI is the main therapy for STEMI-type heart attacks, ideally performed within 90 minutes of the patient arriving at the hospital.
The European Society of Cardiology (ESC) describes PCI as the gold standard for treating acute coronary artery blockages.
Heart Bypass Surgery (CABG)
- Performed when the blockage is too extensive or complex to be treated with PCI.
- The surgeon creates a new pathway using a healthy blood vessel from another part of the body to bypass the blocked area.
Heart bypass surgery can improve blood flow and increase life expectancy in patients with severe coronary heart disease.
3. Post-Attack Care
Treatment of ACS does not end in the emergency department. Patients need follow-up care to prevent another attack.
- Cardiac Rehabilitation
- This program includes supervised physical exercise, health education, and psychological support.
- It helps patients recover faster, improves quality of life, and reduces anxiety.
- Healthy Lifestyle Changes
- Stop smoking and avoid secondhand smoke.
- Follow a healthy diet low in saturated fat, sugar, and salt.
- Exercise regularly as recommended by your doctor.
- Control risk factors such as hypertension, diabetes, and high cholesterol.
Healthy lifestyle changes play an important role in lowering the risk of a repeat heart attack.
Treatment of acute coronary syndrome includes emergency measures, medical therapy, and long-term care. This entire process requires collaboration between the patient, the family, and the medical team.
Complications of Acute Coronary Syndrome
Acute coronary syndrome (ACS) is not only dangerous when the first attack occurs. If not treated promptly, this condition can trigger various serious complications that affect the patient’s quality of life and can even be life-threatening.
The following are the main complications that often arise from acute coronary syndrome:
1. Heart Failure
Extensive damage to the heart muscle makes it difficult for the heart to pump blood effectively. As a result, heart failure develops, with symptoms such as:
- Shortness of breath, especially during activity or when lying down
- Tiring easily
- Swelling in the legs, ankles, or abdomen
Heart failure is one of the most common long-term complications after a heart attack.
2. Arrhythmia (Heart Rhythm Disorders)
Acute coronary syndrome can disrupt the heart’s electrical flow and trigger arrhythmias. These can take the form of:
- A heart rate that is too fast (tachycardia)
- Too slow (bradycardia)
- Irregular (atrial fibrillation or ventricular fibrillation)
Some mild arrhythmias may not be dangerous. However, ventricular fibrillation can trigger sudden cardiac arrest if not treated immediately.
3. Cardiogenic Shock
This is a critical condition in which the heart cannot pump enough blood for the whole body. Its signs include:
- Very low blood pressure
- Pale, cold, and sweaty skin
- Rapid breathing or shortness of breath
- Decreased consciousness
The American Heart Association (AHA) emphasizes that cardiogenic shock is one of the deadliest complications of ACS if it does not receive intensive care immediately.
4. Rupture of the Heart Muscle or Valve
Although rare, ACS can cause a tear in the heart muscle or a heart valve. This condition is often fatal because it can lead to severe bleeding and sudden cardiac arrest.
Treatment usually requires emergency surgery to save the patient’s life.
5. Sudden Cardiac Death
The most dangerous complication of acute coronary syndrome is sudden cardiac death, often caused by a fatal arrhythmia or severe heart damage. This risk is highest in the first hours after a heart attack.
Understanding the complications of acute coronary syndrome is very important so that patients and families can be more alert. Prompt medical treatment can lower the risk of complications and improve life expectancy.
However, prevention is better than cure. In the next section, we will discuss the prevention of acute coronary syndrome, from a healthy lifestyle to regular heart checkups.
Preventing Acute Coronary Syndrome
Prevention is always better than cure. Prevention of acute coronary syndrome can be done by controlling risk factors and adopting a healthy lifestyle. With simple but consistent steps, the risk of a heart attack can be reduced significantly.
1. Control Risk Factors
The three main factors that need to be controlled are:
- Blood pressure → keep it below 130/80 mmHg.
- Blood sugar → manage your diet and activity to prevent diabetes.
- Cholesterol → check your LDL and HDL regularly.
According to the Indonesian Ministry of Health (Kemenkes), controlling risk factors early can lower the incidence of heart disease by up to 80%.
2. Stop Smoking
Smoking damages the lining of blood vessels and narrows the arteries.
- Quitting smoking completely is the recommended step.
- Also avoid exposure to secondhand smoke from others.
The World Heart Federation (WHF) emphasizes that quitting smoking can quickly lower the risk of a heart attack.
3. Exercise Regularly
Physical activity strengthens the heart and improves blood circulation.
- Exercise for 150 minutes per week (brisk walking, cycling, swimming).
- Adjust the intensity to your health condition and consult your doctor.
4. Heart-Healthy Diet
Nutrition plays an important role in how to prevent acute coronary syndrome. Follow a heart-healthy diet:
- Limit saturated fat from gorengan (deep-fried snacks) and fast food.
- Reduce salt and added sugar.
- Eat more fruit, vegetables, whole grains, and seafood.
A healthy diet helps lower bad cholesterol (LDL) and prevent a repeat heart attack.
5. Regular Health Checkups
A heart medical checkup (MCU) helps with early detection of heart disease risk factors.
- Checkups may include an ECG, an echocardiogram, or a treadmill test.
- Discuss with your doctor how often you should be checked based on your condition.
Regular checkups allow earlier intervention to prevent a heart attack.
Caring for Your Heart, Caring for Your Life
Preventing acute coronary syndrome is not only about avoiding disease, but also about building a better quality of life. By controlling risk factors, quitting smoking, exercising, eating healthily, and getting regular checkups, everyone can keep their heart healthy.
Next, it is also important to know when to see a doctor right away if suspicious symptoms appear, so that treatment can be given as quickly as possible.
When Should You See a Doctor Right Away?
Acute coronary syndrome is an emergency that requires immediate medical help. Recognizing the symptoms early can save lives. That is why you should not delay going to the hospital if you or someone close to you experiences the following signs.
1. Sudden Chest Pain That Does Not Improve With Rest
Chest pain is the most typical symptom of acute coronary syndrome. It feels:
- Like being crushed by a heavy weight or pressed hard.
- Spreading to the left arm, jaw, neck, or back.
- Not going away even after resting.
PERKI (the Indonesian Heart Association) emphasizes that any sudden chest pain must be treated as a medical emergency and handled immediately.
2. Shortness of Breath, Dizziness, or Cold Sweats
Besides chest pain, symptoms of acute coronary syndrome can also appear in the form of:
- Sudden shortness of breath, even when you are not active.
- Dizziness or nearly fainting, due to reduced blood flow to the brain.
- Excessive cold sweats without a clear cause.
These symptoms often appear especially in women and older adults, even without classic chest pain.
3. Family History of Heart Disease
For people with a family history of heart disease, even mild symptoms should not be ignored.
- Tiring easily, heart palpitations, or vague chest pain can be early signs.
- The sooner you are examined, the greater the chance of preventing complications.
Genetic factors increase the risk of a heart attack. That is why regular checkups are very important for this group.
Acting Quickly Saves Lives
Every minute counts. If you experience symptoms of acute coronary syndrome:
- Call 119 immediately (Indonesia’s emergency service) or go to the nearest emergency department (ER).
- Do not wait for the symptoms to go away on their own or try to treat them with home remedies.
Conclusion
1. ACS Is an Emergency That Requires Prompt Treatment
Acute coronary syndrome (ACS) is a heart emergency that must not be ignored. Every minute is precious because delayed treatment can worsen the damage to the heart muscle. In fact, patients who receive therapy within the first 1 to 2 hours have a greater chance of survival.
2. Recognize the Symptoms, Control Risk Factors, and Get Regular Checkups
Prevention starts with awareness. That is why the following steps are very important:
- Recognize the early symptoms of ACS: sudden chest pain, shortness of breath, dizziness, cold sweats.
- Control the main risk factors: hypertension, high cholesterol, diabetes, obesity, and smoking. These factors still dominate the causes of heart disease in Indonesia.
- Get regular heart checkups, especially if you have a family history of heart disease. Tests such as an ECG, echocardiogram, or cardiac CT scan can help with early detection.
In short, acute coronary syndrome is an emergency that requires a fast response. Recognizing the symptoms, controlling risk factors, and having your heart checked regularly are key steps to protect your life and your family.
If you have risk factors for ACS, the cardiologists at Heartology Cardiovascular Hospital can help assess your heart condition.
Get Urgent Help First.
If symptoms are severe or come on suddenly, do not wait for a scheduled consultation. Go to the nearest emergency department right away.
The information on this page is for educational purposes and does not replace medical consultation, diagnosis, or treatment. For any health concerns, please consult a doctor directly.Doctors Related to This Topic
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dr. Puti S. Saus, Sp.JP(K)
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View ProfileFrequently Asked Questions.
Here are some frequently asked questions about acute coronary syndrome, its symptoms, and the steps to treat it.
What Is Acute Coronary Syndrome?
Acute coronary syndrome (ACS) is an emergency condition in which blood flow to the heart muscle is suddenly obstructed, usually due to a blockage by plaque or a blood clot in the coronary arteries. When this happens, the heart is deprived of oxygen and heart muscle cells can be damaged within minutes, so this condition requires immediate medical treatment.
How Do You Distinguish Angin Duduk From Acute Coronary Syndrome?
People often call sudden chest pain “angin duduk” (a folk term for sudden chest pain or tightness), when the correct medical term for this serious condition is acute coronary syndrome. Chest pain in ACS usually feels like being pressed by a heavy weight and can spread to the arm, jaw, or back. It is often accompanied by shortness of breath, cold sweats, nausea, or dizziness. Unlike ordinary mild complaints, chest pain caused by ACS does not go away with rest, so if these symptoms appear, seek medical help at the emergency department (ER) immediately.
What Medications Are Usually Given for Acute Coronary Syndrome?
Treatment of ACS almost always involves medications to open the blockage and protect the heart muscle from further damage. Doctors generally give aspirin or other antiplatelet drugs to prevent blood clotting, nitrates to widen blood vessels while relieving chest pain, and anticoagulant drugs to prevent new clots. In addition, medications such as beta blockers or ACE inhibitors may be given to reduce the heart's workload. In many cases, these medications are combined with medical procedures such as angioplasty or stent placement to restore blood flow.
Can Acute Coronary Syndrome Be Completely Cured?
ACS can be managed well, but heart muscle damage that has already occurred usually cannot be fully reversed. The main goals of treatment are to stop the attack, prevent more severe damage, and reduce the risk of another attack. With proper treatment, control of risk factors such as hypertension, diabetes, and high cholesterol, and healthy lifestyle changes, people with ACS can still live productive, good-quality lives.
What Should You Do If You Have Sudden Chest Pain?
If someone feels sudden chest pain that is severe, spreading, or accompanied by shortness of breath and cold sweats, the most important step is to stop all activity immediately, stay calm, and seek emergency medical help. Call emergency services (118/119) or go straight to the nearest emergency department. If available and previously prescribed by a doctor, the patient may chew aspirin while waiting for help. Do not delay, because every minute is precious for saving the heart muscle from permanent damage.
Sources and Transparency.
The information on this page is for educational purposes and does not replace medical consultation, diagnosis, or treatment. For any health concerns, please consult a doctor directly.
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