Many doctors who have experienced this doctor agree with it.

Doctors in the outer hospital are like martial arts masters who show their faces and make remarks when talking about problems. The teachers in their hospitals do not give lectures. The medical students who come to listen to the lecture for the first time are confused, like intern Fan Yunyun, who feels that their heads are almost unable to tell the difference between the east, south, west and north.

It is not easy to learn from Senior Sister Xie. Senior Sister Xie can enter such an important operation and help show her face in front of her colleagues across the country. But she has not yet figured out what happened to this operation.

Senior Sister Xie told her that you should try hard to get into the tough situation. The teacher said that it is better to have more energy to explore yourself. Only by taking a thorough anatomy can you understand all surgical problems.

Fan Yunyun quickly lowered her head, took out a thick anatomical map from her schoolbag and opened the relevant page.

Geng Lingfei, who was sitting next to her, looked at the big textbook in surprise, and finally realized why she had to bring a big schoolbag when she came to the lecture. It was a school self-study class as a lecture.

Looking at her movements, Geng Lingfei frowned and turned back: Well, all the movements of this intern seemed to be intentionally or unintentionally competing with him for the teacher.

"You said they were talking about the question of where the liver gang?" Fan Yunyun seemed to be asking and answering herself.

Geng Lingfei didn't even look at her, and did not discuss with someone like her who robbed the teacher.

If Dai Nanhui felt it was interesting, he looked at the different expressions on their faces. He always felt that it was really strange that these two people had never heard of studying with an intern.

After turning it over, Fan Yunyun whispered to the book to recite the key points of knowledge in her mind: the hepatic vein is composed of the portal vein system of the liver and the hepatic artery system through the central vein and the inferior lobular vein, and it is mostly transported into the inferior vena cava at the second vena and the third vena.

When the patient has Buga syndrome, the hepatic vein efflux is partially obstructed. Therefore, the collateral circulation that is assembled between the unobstructed hepatic vein and the obstructed hepatic vein, the sinusoidal space of the liver subcapsular arch and the liver parenchymal, the phrenic vein and the hepatic vein, the hepatic vein and the short hepatic vein, the adhesion between the lobe and the surrounding liver, the ligaments around the liver, etc., can be widely formed as the outer hospital doctor mentioned earlier.

In addition, there is a third liver hilar duct, which has a large number of small and medium veins called short hepatic veins, with as many as thirty or fifty branches. The above elements constitute a huge risk of bleeding if the doctor handles it improperly during the operation, causing the patient to die on the operating table.

The meaning of the need to establish extracorporeal circulation in this kind of operation is here. The inferior vena cava is a large channel for blood to flow back to the heart. Once blocked, venous congestion in the following sections may occur. How serious is this problem? Sometimes it will cause renal failure in the lower sections. In addition to this, the collateral circulation formed by patients with Buga syndrome during the lesions are mostly small blood vessels. Once the large channel is stuck, these small blood vessels will be detonated like large minefields. At that time, the blood will spread into the sea, and the doctor only has a few hands, so how can he deal with such a large minefield and blood vessels bursting.

What is difficult to control bleeding is the terrifying consequence.

I understand. Fan Yunyun nodded, Senior Sister Xie is amazing, and it turns out that it is the most important thing to read, understand and anatomy.

In this case, why do doctors hesitate to use this extracorporeal circulation?
Chapter completed!