Sudden cardiac arrest: Symptoms & causes

Yamini Saini

The human heart is a complex and intricate organ, a testament to the wonders of biological engineering. It is the driving force behind every aspect of our lives, from the mundane to the extraordinary. Yet, for all its beauty and power, the heart is also vulnerable to sudden and catastrophic failure. Sudden cardiac arrest is a silent killer that claims millions of lives each year. This life-threatening condition strikes unexpectedly, leaving little time for intervention. It can happen to anyone, anywhere, at any time, regardless of age, gender, or underlying medical conditions. It is a leading cause of death globally, and the numbers are only increasing. 

Did you know?
Cardiovascular disease is the leading cause of death worldwide, while sudden cardiac death (SCD) accounts for over 60% of all cardiovascular deaths, as per NCBI.

The sudden and unexpected death of famous personalities due to sudden cardiac arrest (SCA) has brought this life-threatening condition to the forefront of public attention. Famous personalities including Actor Sidharth Shukla, Singer KK, Comedian Raju Srivastava, Director Satish Kaushik have passed away due to the unfortunate incident of heart attacks and cardiac arrests.

Cardiac arrest can occur suddenly and without warning, even in individuals without a known history of heart disease or risk factors. So, it is important to look out for signs and seek medical help immediately in such a case.

Cardiac arrest symptoms

Sudden cardiac arrest (SCA) often has warning signs and symptoms that may precede it. Although, in some cases, it occurs without any prior symptoms. Here are some of the common cardiac arrest symptoms:

  1. Chest pain or discomfort: This may feel like a squeezing pressure in the chest. It is also fluctuating in nature, meaning it can come and go basis the severity of the attack.
  2. Shortness of breath: You may feel like you can’t catch your breath or that you’re breathing rapidly.
  3. Fainting or loss of consciousness: You may suddenly collapse and lose consciousness.
  4. Rapid or irregular heartbeat: Your heart may beat too fast or too irregularly.
  5. Dizziness or lightheadedness: You may feel dizzy or faint.
  6. Fatigue: You may feel tired or weak.
light-headedness - cardiac arrest symptoms

Cardiac arrest causes

Cardiac arrest occurs when the heart suddenly stops beating, leading to a cessation of blood flow to the brain and other vital organs. This can happen due to various underlying cardiac arrest causes, including:

  1. Coronary artery disease: One of the most common causes of cardiac arrest is coronary artery disease. Due to cholesterol buildup, the coronary arteries that pump blood from the heart to the entire body, become blocked. This can result in lack of blood supply to vital organs of the body.
  2. Heart attack: Heart attack occurs when there is a sudden blockage in one of the coronary arteries. It then leads to damage or death of the heart muscle.
  3. Heart failure: The heart is unable to pump enough blood to meet the body’s demands. It leads to weakening of the heart muscle and an increased risk of cardiac arrest.
  4. Arrhythmias: These are abnormal heart rhythms that can disrupt the heart’s normal electrical activity and lead to cardiac arrest. Examples include ventricular fibrillation and ventricular tachycardia.
  5. Congenital heart disease: This is a birth defect where the heart/ blood vessels near the heart don’t develop properly. This leads to an increased risk of an arrest later in life.
  6. Electrolyte imbalances: Low levels of potassium, magnesium, or calcium can disrupt the heart’s electrical activity and lead to an arrest.
  7. Drug overdose: Certain drugs such as cocaine and amphetamines can cause abnormal heart rhythms and lead to cardiac arrest.
causes of cardiac arrest

Now that we’ve highlighted major reasons for cardiac arrest, let’s talk about some natural ways to minimize the risk.


In conclusion, sudden cardiac arrest is a serious medical condition that requires immediate attention and treatment. By adopting healthy lifestyle habits and taking steps to manage risk factors, we can all take proactive steps to reduce the likelihood of it.

We can also take additional help to improve our heart health by incorporating a heart-healthy supplement. TrueBasics Heart Omega-3 is a natural supplement that is proven to reduce cholesterol and triglycerides by up to 33%. The Antarctic Krill Oil used in this nutritional supplement is 100% traceable and pure. It has 4 heart-strengthening ingredients including Choline, Astaxanthin, Phospholipids and Omega-3 fatty acids that will make your heart stronger.

TrueBasics Heart Omega-3
Yamini Saini