"Deep reading Jun, what is the matter with my chest tightness and panic?"
"How did you get rheumatic heart disease?"
What are heart valves? What exactly is rheumatic heart disease? What are the symptoms?
Deep reading Jun is a dead lord, want to explain rheumatic heart disease, how to do without the heart? Bring gear and thick hair!
The heart is the engine of the human body, pumping blood day and night, transporting blood throughout the body.
The upper layer of the heart is called the atrium, which is divided into the left atrium and the right atrium, which is equivalent to a reservoir and is responsible for storing blood.
The lower layer is the ventricle, which is divided into the left ventricle and the right ventricle, which is equivalent to the pumping chamber, from which blood is pumped out.
Fresh arterial blood in the left ventricle slammed into the aorta, carrying nutrients and oxygen throughout the body.
The venous blood in the right ventricle, with a thud, shoots into the pulmonary artery, enters the lungs, completes the gas exchange, and transforms into arterial blood.
Heart valves refer to valves between the atrium and ventricles or between ventricles and arteries, like a one-way open gate, which opens when the blood is moving forward and closed when it returns, ensuring that the blood is brave.
In the heart valve, the tricuspid valve is located at the junction of the right atrium and the right ventricle;
The mitral valve is located at the junction of the left atrium and left ventricle;
The pulmonary valve is located at the junction of the right ventricle and the pulmonary artery;
The aortic valve is located at the left ventricle and aortic junction.
What are the criteria for a good valve?
First, good to open
When the blood rushes out, the valves are particularly cooperative, a flash, the blood past that is called a smooth, the heart pumps blood without effort.
Second, keep it tight
After the blood is pumped out, the valve will be tightly closed, and the blood that has been pumped out will never flow back from the seam.
What is rheumatic heart disease?
Rheumatic heart disease is due to rheumatic fever to destroy the heart valve, the valve is either difficult to open, or not tight.
Difficult to open
The heart valves have been brutally abused by rheumatic fever, the valves have become hypertrophied, some have also adhesions, in short, the valves have become thick and heavy, not so easy to open.
The heart contracted, and the blood rushed over, "Oh I'm going, I can't push it!" ”。 I pushed open an opening and saw that only part of the blood rushed through.
There are two serious consequences at this point.
First, the blood cannot pass in full, resulting in insufficient blood pumping in the heart.
Second, the resistance of blood pumping increases, increasing the burden on the heart.
It doesn't matter
Looking at this heart valve, it is also trampled by rheumatic fever, calcification and atrophy, in short, the heart valve becomes narrow and small, and it is not tight.
A contraction of the heart pumped the blood out, followed by a relaxation, and I went, and the blood that had just been pumped out came back along the lax gap.
There are also two serious consequences at this time.
First, the amount of blood that is actually pumped out is not enough, resulting in insufficient blood pumping by the heart.
Second, the blood is pumped out and back, and the heart always does useless work endlessly, increasing the burden on the heart.
Read deeply jun heartache heart for three seconds!
How do the symptoms of rheumatic heart disease come from?
Whether it is narrowing of the heart valves or incomplete closure, it can be summarized with two consequences, one is that the heart is not pumping enough blood, and the other is that the burden on the heart is increased.
Insufficient blood pumping from the heart leads to insufficient blood supply to various tissues and organs, ischemia and lack of oxygen, people are prone to fatigue, and fatigue will come.
Over time, tissues and organs will be damaged and necrotic, and some even fail.
Problems with the heart valves increase the resistance of blood entering the heart, triggering lung congestion.
Blood is piled up in the lungs, affecting normal gas exchange, causing breathing to speed up, chest tightness, and shortness of breath.
As the work of the heart becomes more and more heavy, over time, once the heart is tired, it is heart failure.
"Deep reading Jun, rheumatic heart disease who is the ghost?"
Why are good heart valves narrowed? Just closed incompletely? Who played the bad game?
There is only one truth, deep reading Jun incarnated As Sherlock Holmes, tracking down the secrets behind rheumatic heart disease, and next intensively ask you to solve the case!
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