Cardiac arrhythmias
Disease information
Cardiac arrhythmias
The heart is
a
muscle
that pumps the blood to all the body, as much so that it is purified in the lungs, like so that arrives at
each
cell of the organism.
This pumping makes it with an amazing rate and constant that only changes
a
little when we are in complete rest or it is accelerated with the exercise, some
disease
or scare.
So that the rate is made of
normal
form, in the heart specialized cells exist that generate stimuli electrical that stimulate to the
cardiac
muscle
so that the blood is contracted and expelled towards the different organs. These cells form nodules and of one from them, called sinusal one, they leave to the electrical stimuli that distribute in the heart determining their contraction and expansion, this also is made in coordination with the vegetative
nervous
system
.
The frequency
cardiac
more is accelerated in the babies and small
children
who in the adult people and can consider when this one fluctuates of constant form between the 60 and the 100 beats per minute
normal
.
The
normal
frequency
cardiac
varies depending on the capacity of
generation
of stimuli in the sinusual nodule and on the vegetative
nervous
system
that is influenced as well by the
respiratory
rate, increasing the frequency during the inspiration and diminishing during the espiración. So that it is considered
normal
in an adult person that their beats occur between 60 and 100 per minute.
When the rate of the beats
cardiac
changes, an
arrhythmia
takes place
cardiac
, that is an upheaval that interferes with in the
normal
rate of the
generation
or conduction of the electrical impulses what causes irregular series of beats and that can affect the quality of life seriously or until causing the death of those who suffers them.
The
arrhythmias
also known like bradicardia, fibrilación, palpitaciones or tachycardia depending on their frequency
cardiac
, can affect to people of both sexes and any age, even in the
childhood
.
They are divided in taquirritmias, bradiarritmias and fibrilaciones.
In taquirritmias, the frequency is very fast and irregular and it is over the 100 beats per minute, which sometimes can get to produce
a
tremor of the skeletal
muscle
and the rate is lost completely.
In bradiarritmias, the frequency is very slow, smaller of 60 beats per minute and produces among other things the faint of the person, since the brain does not receive sufficient amount of oxygen.
the fibrilaciones appear when the heart rate loses regularity and it is disordered completely.
Generally, the
arrhythmias
must to some damage of the
cardiac
muscle
or the sinusal nodule, that is the marcapasos
natural
of the heart. The damage can be caused by an
attack
to the
congenital
heart, defects, deteriorated
cardiac
valves or by some
infection
, like the
bacterial
endocarditis
.
The risk of the
arrhythmias
resides in its enormous capacity to transform
itself
into another upheaval that can take to the death of the person who suffers them.
Another important risk, is the
circulatory
alterations that can trigger, depending on the type of
arrhythmia
and the
cardiovascular
antecedents of the patient. Generally, the people with
a
healthy heart tolerate or the alterations of the heart rate and not even they get to present / display symptoms since the contribution of blood towards the different organs can stay within the
normal
limits while the frequency
cardiac
does not surpass the 100 beats per minute or it is the 60 underneath.
It is not easy to determine the
origin
of the
arrhythmias
, nevertheless, are factors as the excessive consumption of
alcohol
, tobacco or caffein and other drugs that can alter the heart rate.
IMPORTANT:
The content of this note is informative and it does not replace the medical diagnosis, reason why we do not become people in
charge
on its use.
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