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Home » Healthy Living

Understanding Heart Attack, Cardiac Arrest and Stroke

by Marybeth Morrell, RN, MSN, CCRN-K
September 13, 2020
22
Reviewed by Dr. Ghassan Kanj, MD

There is a lot of ambiguity among the people regarding the various heart conditions, and one of the most common mistakes that people often make when they refer to acute-heart related episodes is that they use the terms “heart attack,” “cardiac arrest” and “stroke” interchangeably.

Even though all three can be associated with the heart, their reasons for occurrence are different. They have different symptoms, and they affect the body differently as well.

Armed with proper knowledge about these three conditions and a proper understanding of their difference will help address these issues in a better way, and also alert timely to seek treatment before it gets too late. If you or someone around you experiences any of these symptoms, then you need to seek immediate medical attention.

difference between heart attack, stroke and cardiac arrest

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Contents

  • Understanding What They Are
    • Heart Attack:
    • Cardiac Arrest:
    • Stroke:
  • Understanding The Different, and sometimes Similar, Symptoms
    • Symptoms of a Heart Attack:
    • Symptoms of a Cardiac Arrest:
    • Symptoms of a Stroke:[9]
  • Expert Answers (Q&A)

Understanding What They Are

Heart Attack:

A heart attack is a circulation disorder.

A heart attack occurs when there are interruptions in the delicately synchronized system that supplies blood to the heart and pumps blood from the heart to other vital organs.[1]

Sometimes, the flow of oxygen-rich blood to a portion of the heart muscle is blocked or slowed. If the blood flow is not restored quickly, the muscle, which is supplied by the blocked or narrowed artery, begins to die due to a lack of oxygen. This heart-muscle-death is what is traditionally known as a “heart attack,” and medically referred to as a myocardial infarction (MI).

In a heart attack, however, the heart continues to beat.

Cardiac Arrest:

A cardiac arrest, on the other hand, is when the heart stops pumping blood; cardiac arrest can result from a “heart attack,” but, fortunately, not very frequently; however, a cardiac arrest can be caused by other ailments.

Although a cardiac arrest can be caused by “mechanical” abnormalities like blood clots in the lungs and bleeding around the heart, a cardiac arrest is, more commonly, an “electrical” disorder and is the leading cause of death in adults.[2]

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The heart muscle pumps in response to electrical signals that travel within the heart; this is why we can pick up “heart waves” on an electrocardiogram (ECG or EKG).

When the electrical activity of your heart experiences chaos, it causes the heart to start beating irregularly, at least initially, and then abruptly stop pumping blood through the body. This chaotic electrical activity is frequently referred to as an arrhythmia.

The patient may feel a palpitation or fluttering feeling in his/her chest moments before his/her heart stops beating completely.

This is a cardiac arrest. Fortunately, not all arrhythmias lead to cardiac arrest.

Stroke:

A stroke is also caused by interruption of blood flow, but it affects the brain tissue rather than heart muscle. It is a medical emergency that happens when the blood flow to your brain is interrupted.[3]

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There are three main types of strokes:

  • Ischemic stroke: When the artery transporting oxygen-rich blood to the brain experiences a blockage, it causes brain cells to die. This leads to an ischemic stroke. Such blockages of brain arteries can be caused by narrowing of the arteries, but can also be caused by “small” blood clots that can come from the heart and “plug” the brain arteries.
  • Transient ischemic attack (TIA): A “mini-stroke” can occur when the artery transporting blood to the brain stops doing so for a short period; symptoms of stroke can be seen during this period of blood-flow interruption, but the symptoms will resolve without residual deficits.
  • Hemorrhagic stroke: When an artery ruptures inside the brain, brain cells can be damaged by interruption of flow in the ruptured artery as well as “local” effects caused by the presence of blood around the brain.

Atherosclerosis, or narrowing of the arteries by plaque, is the primary cause of a heart attack and a brain stroke, and one of the primary causes of a cardiac arrest as well.[4]

cardiovascular risk factors

Although traditional risk factors remain common among both sexes, diabetes, smoking, and psychosocial factors tend to be more strongly linked to cardiovascular events in women than in men.[5]

Understanding The Different, and sometimes Similar, Symptoms

heart attack

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A heart attack and cardiac arrest can have common symptoms, at least initially, and it is difficult to predict whether a heart attack will lead to cardiac arrest. Fortunately, as mentioned above, a cardiac arrest does not happen frequently after heart attacks.

However, the other accompanying symptoms, as well as how long the symptoms last, differentiate these conditions from each other.

The symptoms of a stroke are mostly neurological.

Symptoms of a Heart Attack:

The following symptoms of a heart attack.[6] can appear early on and persist for days.[7]

  • Chest pain (angina): People usually characterize this as a heaviness or tightness in the middle of the chest. Some often confuse it with indigestion. It might stay for a few minutes, go away and then come back again.
  • Body aches: The sensation of chest pressure or an indigestion-like feeling might be accompanied by pain in the arms (especially the left arm), neck, back, abdomen and jaw.
  • Shortness of breath and wheezing
  • Cold sweats
  • Lightheadedness and dizziness
  • Increased anxiety
  • Nausea
  • Coughing

These symptoms aren’t relieved by medications, rest, or home remedies that typically resolve them when they are caused by more benign conditions.

So, if you feel like you have indigestion and you take something to treat it, the symptom will return because the problem is with your heart and not your digestive system. If the symptoms last longer than 15 minutes without relief, consult your medical provider or emergency services immediately.

In addition, these symptoms are likely to occur more when you exert yourself (running, jogging, exercising, swimming, etc.), though they can occur at rest also.

Symptoms of a Cardiac Arrest:

Sometimes, in the few minutes preceding a cardiac arrest, a person may experience symptoms similar to a heart attack:

  • Loss of consciousness/fainting
  • Blackout
  • Chest pain or pressure
  • Shortness of breath
  • Extreme palpitation or fluttering feeling in the chest.
  • Generalized weakness

However, in most cases and unlike a heart attack, a person who suffers a cardiac arrest will experience:

  • Symptoms of cardiac arrest that arose and dramatically worsened or accelerated within just a few minutes or even seconds.
  • Becoming unresponsiveness
  • Cessation of breathing
  • Loss of pulse
  • Sudden collapse

These appear suddenly and often result in instant death.[8]

After a heart attack, there will be an increased risk of cardiac arrest. This is why it is important NOT to delay medical attention if a heart attack is suspected.

If you have suffered a heart attack, then you are at a greater risk of cardiac arrest.

Symptoms of a Stroke:[9]

  • Sudden mental confusion: You may have trouble understanding things and following conversations. You may find it hard to remember names, places, random facts and other things you used to be able to recall.
  • Disrupted speech: You may slur your speech.
  • Face, arm or leg paralysis: You may experience numbness or paralysis on one side of your face or the entire face. You may experience paralysis, numbness or weakness in your legs and arms, especially on one side. If one side of your mouth droops when you smile, or one arm keeps falling when you lift both of them up, you might be experiencing a stroke.
  • Inability to walk: You may experience a loss of body coordination and dizziness while trying to walk.
  • Blurred vision: Your vision may blur in one or both your eyes, or your eye may become runny. You might also start seeing double.
  • Headaches: A searing pain in the head might be accompanied by dizziness and vomiting.
  • Nausea or difficulty in swallowing.
  • Transient ischemic attack (TIA): About 1 in 3 people who have a transient ischemic attack will eventually have a stroke, with about half occurring within a year after the transient ischemic attack.[10]

Expert Answers (Q&A)

Answered by Cardiologist Mamas Mamas

What immediate first aid can be administered to a cardiac arrest victim?

An important aspect of care is CPR by bystanders, which can lead to a double or quadruple increase in the survival rates of cardiac arrest victims. However, there are gaping disparities among the CPR rates administered by bystanders, varying between 5%-70%. In the UK between 30% to 40% of out of hospital cardiac arrests receive bystander CPR. It is important that everyone knows basic CPR as it may just save your loved one’s life. I would encourage all readers of this website to learn CPR.

What are the silent symptoms of a heart attack?

I often see patients at my clinic or during my practice that have had a heart attack at some point in the past without experiencing any noticeable symptoms. Patients may have experienced symptoms that they didn’t recognize as a heart attack at the time such as heartburn, breathlessness or a general feeling of malaise. Moreover, patients are sometimes unable to recollect the specific symptoms once they have lived through a “silent” heart attack.

Can cardiac arrests or strokes be prevented?

Lifestyle changes can reduce the risk of cardiovascular disease. It is important to be physically active and maintain healthy body weight, along with giving up on habits that have an ill effect on your health like smoking. It is also necessary to know what your blood pressure and cholesterol levels are, and manage them to reduce your risk.

Can high blood pressure lead to heart attack or cardiac arrest or stroke?

High Blood pressure is one of the most important risk factors for cardiovascular disease, but people often don’t realize they suffer from it until it is too late! That is why I would encourage your readers to visit their doctors and get their blood pressure evaluated. There are several ways of reducing blood pressure, ranging from a healthy lifestyle and diet to medications.

Which food items keep the heart healthy?

High fiber, low saturated fat diets are essential. I would advise lean meat, fish or chicken as good sources of dietary protein. It is important to eat salads and fruits as part of a healthy diet. People should aim to cut back on refined sugars such as chocolate, sweets and soft drinks. Another critical factor is how you cook food, avoiding fried foods, and opting for grilled meals instead.

About Cardiologist Mamas: He is a Professor of Cardiology at Keele University / Honorary Consultant Interventional Cardiologist at the Royal Stoke Hospital. He is an Associate Editor of Circulation Cardiovascular Interventions and a member of the E-Cardiology working group of the European Society of Cardiology. He is also a member of the Heart Research UK medical review panel and the NIHR interventional procedures review panel. He has published over 300 peer-reviewed papers using big data in populations with cardiovascular disease.

Resources:

  1. Myocardial Infarction (Heart Attack). | San Francisco. https://library.calstate.edu/sanfrancisco/ebsco/record?id=t6o-89093430
  2. Hayashi M, Shimizu W, Albert CM. Archive of all online content. AHA / ASA Journals. https://www.ahajournals.org/doi/abs/10.1161/CIRCRESAHA.116.304521
  3. Stroke. National Heart Lung and Blood Institute. https://www.nhlbi.nih.gov/health-topics/stroke.
  4. Benjamin, E. J., Blaha, M. J., Chiuve, S. E., Cushman, M., Das, S. R., et al. American Heart Association Statistics Committee and Stroke Statistics Subcommittee (2017). Heart Disease and Stroke Statistics-2017 Update: A Report From the American Heart Association. Circulation, 135(10), e146-e603. Retrieved from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5408160/
  5. Parvand M, Rayner-Hartley E, Sedlak T. Recent Developments in Sex-Related Differences in Presentation, Prognosis, and Management of Coronary Artery Disease. Canadian Journal of Cardiology. https://www.ncbi.nlm.nih.gov/pubmed/29571423. Published April 2018.
  6. Jr DCG. Knowledge of Heart Attack Symptoms in a Population Survey in the United States. JAMA Internal Medicine. https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/1729652. Published November 23, 1998.
  7. Passinho RS, Primo CC, Fioresi M. Signs, symptoms and complications of acute myocardial infarction. Journal of Nursing UFPE on line. https://periodicos.ufpe.br/revistas/revistaenfermagem/article/view/22664.
  8. Joseph ME. Sudden cardiac arrest. Egyptian Journal of Medical Human Genetics. https://www.sciencedirect.com/science/article/pii/S0019483214000078?via=ihub. Published 2014.
  9. Yoon SS, Heller RF, Levi C, Wiggers J, Fitzgerald PE. Archive of all online content. AHA / ASA Journals. https://www.ahajournals.org/doi/abs/10.1161/str.32.8.1926. Published April 7, 2018.
  10. Lovett JK, Dennis MS, Sandercock PAG, Bamford J, Warlow CP, Rothwel PMl. Archive of all online content. AHA / ASA Journals. https://www.ahajournals.org/doi/abs/10.1161/01.str.0000080935.01264.91. Published July 10, 2003.
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Comments 22

  1. Jiban Akoijam says:
    5 years ago

    Thanks for valueable aware, tell us about Liver and Brain Tumour.

  2. v.pushpalatha says:
    5 years ago

    Good topic,

  3. Jyotirmoy Das says:
    5 years ago

    This was helpful and I liked it.

  4. Maalim says:
    5 years ago

    Dear ..
    it’s a great time to get your free definition about heart attacks.

    thanks

    • Christine says:
      3 years ago

      I have chronic pancreatitis and I’m having numbness in my hand and burning in my eyes, and my big toes are sore all the time too and alot of headaches too! My Dr doesn’t listen to me and I’m sure my sugar levels aren’t good because my heart beats so fast sometimes I can’t get my breath! What should I do??

  5. sanyogita says:
    5 years ago

    Too good post..thanks for the info..

  6. adnan says:
    5 years ago

    thank u dear

  7. Saeed a sheikh says:
    5 years ago

    Nice information thanks

  8. OTAI SAMUEL says:
    5 years ago

    Thank you for the great explanation you have made. These are most misunderstood symptoms for witchcraft, political malice, ignorance.

  9. BEE says:
    5 years ago

    Excellent Read!

  10. Bashir says:
    5 years ago

    My father had stroke brain right side of the body one leg one hand and also can not talk from 2 years now can i have some thing that can realief with stroke back to normal thanks and let me know about it.

  11. billy says:
    5 years ago

    My last lite stroke which I did not know I was having till I got to the hospital it must of been the brain one.

  12. imran mailk says:
    5 years ago

    I have got the initial knowledge about the cardinal system. thanks

  13. Diana says:
    5 years ago

    Thanks for the explanation.

  14. Jemmy Tanex says:
    5 years ago

    Thank’s very usefull ! How we can give first aid on side before hospital care ? There is same care/treatment or different depends of attack causality ?

  15. Dr Jagdish chaudhari says:
    5 years ago

    Nicely explained.

  16. Arnie says:
    5 years ago

    This is a good topic thanks a lot God bless you more power

  17. Chinni says:
    4 years ago

    Very useful to the reader

  18. Dr.Imtiaz Ahmad Gondal says:
    4 years ago

    thanks a lot for such a nice awareness about heart for public as well as medical students

  19. Romella Malig says:
    4 years ago

    Thanks for the good information.

  20. Sandra says:
    4 years ago

    Thank You for your very valuable topics regarding the top ten health tips. Take care..

  21. Euwattie Singh says:
    3 years ago

    Very good information given this is mostly helpful thanks

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