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Cardiac arrhythmia can kill? See peculiarities of each case

Cardiac arrhythmia can kill? See peculiarities of each case

When you're at the peak of your workout or are you scared, have you noticed how fast your heart is racing? Yes, there is an explanation for that. So let's start this story from the beginning ...

The heart muscle (myocardium) contracts about 80 times a minute, this makes the blood flow more or less stable throughout the day. I mean more or less why can we feel the pulse beating? once for each contraction of the ventricles.

Each beat slightly increases the pressure inside the vessel, and we can see the "pulse", which is a wave of blood being pushed through the body, carrying the blood with oxygen and nutrients to the brain, kidneys, intestines, muscles, and back to the heart.

Each beat is initiated by an electrical stimulus created by the heart itself. A special group of cells, called the sinus node, creates rhythm. Like a drummer, it maintains a stable frequency, which speeds up when needed to feed the other parts of the body (in the running) or anticipating use in the event of a fight or flight (in shock).

Causes of cardiac arrhythmia

When the rhythm is faster than adequate, slower than the necessary or irregular minimum, one of two things happened:

  • The sinus node is not doing its job right (being slower than desired, or prevented to give rhythm to the ventricles, in the blocks)
  • Someone decided to control faster, overlapping, as in the tachycardia and extrasystoles.

So if the frequency is slower than 50bpm, faster than 100bpm or irregular, we call arrhythmias.

Cardiac arrhythmia can kill

If you have accompanied so far, you have noticed how important it is for the body that the flow to be stable. If the heart beats slower, blood accumulates in the lungs and does not reach the brain. If it hits too fast, blood, which is a broth composed of solids diluted in the serum, begins to "bottle" and also accumulates without feeding the rest of the body.

The first to suffer from food / oxygen deprivation are brain and the heart itself. Therefore, very fast or very slow arrhythmias can kill.

Fortunately, these are very rare. They may be started with adrenaline, exertion, drugs and people who are already living in chronic oxygen deprivation in the heart (infarction or angina) or in the brain (carotid, stroke or stroke problems).

Ventricular arrhythmias (which the heart already has more natural defenses).

Cardiac Arrhythmia X Physical Activity

Most people with arrhythmia can practice regular physical activity, and should also be active , as long as the frequency is controlled. Patients with severe cardiopathy, such as those with a defibrillator or ventricular arrhythmias that last more than 30 seconds (sustained) or with signs of instability (angina, loss of consciousness), should be removed. of sports activity.

Rarely patients are unable to perform aerobic activity. Initiating activities such as walking and light cycling without an increase in load is acceptable and safe.

Seeking medical help

If you have arrhythmias you should go to a doctor to see if they are sensitive to stress and adrenaline. heart disease that makes it more fragile in the case of acceleration (tachycardias) or bruising (bradycardia), echocardiogram, electrocardiogram and holter 24 hours already help identify people at greater risk.

Medical consultation in search of history of death, fainting in the person or in first degree relatives (parents, siblings) is important, as there may be a genetic family pattern.

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