Heart attacks, cardiac arrest and strokes are all serious
conditions related to the heart, but too often people use the terms
interchangeably without understanding the differences among the three.
Although the disorders are all (usually) related to the heart, they have
different causes and symptoms, and it's important to
know the characteristics of each so you can better identify and address the
problems should they occur in your loved ones, or even yourself.
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Most people hesitate to open any attachment for fear of piracy etc!
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What is the Difference Among the Three Conditions?
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Heart Attack
A heart-attack is a blood circulation problem caused when arteries become blocked and prevent oxygen-rich blood from
reaching the chambers of the heart. An attack occurs when the coronary arteries
responsible for carrying the blood to the heart become narrower due to the
accumulation of fatty matter, calcium and proteins within them.
Over time, these deposits form plaque, which hardens on the
outside. As they harden, the plaque deposits can rupture, causing blood clots
to form around them. When these blood clots block the coronary arteries altogether,
blood cannot reach the heart, which in turn becomes starved of oxygen. When
this happens, the muscle cells of the heart begin to die and can become
permanently damaged, which is what constitutes a heart attack.
Cardiac Arrest
Cardiac arrest (often known as 'sudden cardiac arrest') occurs due to an
'electrical fault' that causes the heart to malfunction. When it's working
properly, the heart creates electrical impulses that cause it to contract and
relax, creating the 'beat' that pumps blood throughout the body.
When these impulses are interfered with or
stop altogether, a sudden cardiac arrest can occur because the ventricles of
the heart 'flutter' rather than 'pump'. If this reduces the blood flow to the
brain significantly, a person can fall unconscious and collapse and will
therefore be in need of immediate, emergency treatment.
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Stroke
A stroke, also known as a cerebro vascular accident (CVA) is actually a
brain disorder that is often (but not always) caused by a heart
problem. It occurs when the blood flow to the brain is reduced to the
point where cells in the brain begin to die. There are two main types of
stroke:
Hemorrhagic- Caused by
bleeding, usually triggered by a ruptured artery in the brain itself. They
can sometimes be associated with traumatic injuries to the head, although a
stroke can occur a long time after the original incident.
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What Are the Symptoms of
Each Condition?
Most people hesitate to open any attachment for fear of piracy etc! Although the conditions
can all develop suddenly, there are often a number of indicators that people
can use to identify a developing issue. Some of the symptoms can be shared between two of
the conditions, but there are also some differences that can help you
distinguish between them:
Symptoms of a Heart Attack
The symptoms that indicate
a heart attack may well come and go, but can also worsen over time. They
are also likely to be more acute during times of physical exertion.
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Symptoms of a Cardiac Arrest
Although these indicators can foretell the coming of a cardiac arrest,
most people will be alerted to the event by extreme symptoms such as sudden collapse or loss of
consciousness. It is much harder to predict, in most cases, than a heart
attack or stroke, particularly far in advance.
Symptoms of a Stroke
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Common Confusion Between the Disorders
Much like the common cold is
often called the 'flu' in everyday language, confusion among the three types
of heart-related conditions occur too. Typically, representations of 'cardiac
arrest' in film and TV programs will involve people responding by saying
'he/she is having a heart attack'. Most of the time,
the condition which leads to sudden collapse and clutching of the chest will
be cardiac arrest, although heart attacks do share many of the same symptoms.
It should also be noted that during a heart attack, the heart continues
to beat, while in cardiac arrest, it stops beating altogether (or the power
of the beats is significantly reduced) due to the electrical malfunction.
Someone who has previously suffered a heart attack is at greater risk of
sudden cardiac arrest. Never hesitate to call 911, if you ever face any of these symptoms yourself or one of your loved ones or friends. I DID, (My misfortune of my loss), which did give me 5 more years together with my wife. I, all the time thank those who had sent me such educational articles. A heart attack is also more likely to occur as a result of a gradual
development and worsening of symptoms over time (although sometimes, people
can have a heart attack despite displaying no symptoms at all - a condition
known as a 'silent' myocardial infarction).
The symptoms of a stroke, meanwhile, are distinct and most commonly
effect the head or a sufferer's motor skills. Because the causes of a stroke
can be attributed to the heart's failure to pump enough blood to the brain,
one can actually occur as a result of sudden cardiac arrest (which is
actually one of the chief causes of a stroke).
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What Should You Do?
The best ways to ensure you don't develop problems are to live a healthy
lifestyle, avoid bad habits, eat well and exercise regularly. Also, visit
your Doctor for regular check ups, particularly if you are displaying any symptoms
that could be related to these conditions.
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