This classmate opened his eyes again.
Turning her head to glance at the clues on her husband's face, Ye Sujin thought about the information her husband revealed to her last time he called her: It seems that her husband might really want to compete with his sons for the girl.
"How is it?" Ye Sujin asked her husband, a big boss in surgery, what he thought. She was an anesthesiologist and didn't understand some surgical techniques.
On stage, it was eerily quiet.
After her second son was replaced as the main surgeon and became an assistant, he hardly said a word, which made her confused.
The wife of an anesthesiologist cannot say that she does not understand the ins and outs of this, otherwise she would not have asked such a question. Cao Yudong knew this and told his wife: "Watch it quietly, don't disturb the child who wants to count."
Saying that this operation is the most important and difficult in this area is definitely not just because the operation is "small" and difficult, but because it involves technical barriers.
Where is the hurdle? Carefully recalling the surgical process and purpose introduced earlier, you will find that this operation uses a single ventricle (right ventricle) to supply blood to both sides of the pulmonary artery, which inevitably involves a distribution ratio issue.
With only one ventricle left, what is the appropriate ratio of blood to be distributed between the aorta and the pulmonary artery?
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It is definitely not such a simple and crude calculation as fifty percent to fifty.
The systemic circulation requires that the heart pump more blood each time than the pulmonary circulation. For example, it is common sense that the aorta of a normal and healthy person is thicker than the pulmonary aorta.
What is the distribution ratio? Some say it is sixty to forty, or several dozen to several dozen.
There is no absolute conclusion about this value. The physical condition of each person is different, and the doctor needs to adjust it according to the actual situation of the operation. One thing to mention here is that it is very common for this disease, including the baby who is undergoing surgery, to be accompanied by pulmonary hypertension. It's just that this baby is lucky that the pulmonary hypertension has not reached the critical value that triggers the Fonton operation. It is equivalent to saying that if the doctor suddenly corrects all the pulmonary hypertension, the baby may not be able to adapt to it in a short time and may get sick instead. Therefore, this operation is called palliative surgery, not to completely cure the problem of pulmonary hypertension.
Doctors need to weigh all of these factors when considering their final decision.
After determining the distribution ratio between the two, the doctor will make the blood vessels on both sides as thick and thin as possible to achieve this ratio and complete the precise distribution.
Cao Yudong calmly said that he let the child think of the numbers herself because he had seen Xie's performance and thought these questions would not be difficult for her.
It is true that all kinds of estimations are her strong points. Perhaps because of this, Xie Wanying made every step very steadily.
When it came to choosing the right type of artificial tube to connect the pulmonary artery to the right ventricle, she was quite confident that she could get it done in one go.
If it were any other surgery, it would undoubtedly help her save a lot of surgery time. However, today's surgery was too easy to cause fatigue.
Xie Wanying had almost done it when she looked up at the electronic clock hanging on the wall. The clearly jumping red numbers on it showed every second, which was shocking.
Before she knew it, the operation time was approaching the limit, almost sixty minutes, which was completely beyond her expectation.
The anxiety that spread throughout her was something she had never experienced before.
In Zhu Xing's last surgery, which was also close to the time limit, she served as an assistant and had no pressure. This time, she became the main surgeon, and she performed the key steps. Before the surgery, she persuaded the family to let the child have the surgery. If it failed -
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