BXBX NOVEL Chapter 2541: 【2541】Takumi
If the streamer in Cao Yong's eyes nodded to the answer of the junior brother, it seems that many junior brothers are also talented.
Student Pan’s words, in a brief summary, refers to the inappropriate places in the process of organ transplantation. Doctors may use clever methods to make them suitable, which is called suitable.
"Yingying, what do you think?" Pan Shihua asked classmate Xie's opinion.
Senior Brother Cao and Classmate Wei looked over as if they wanted to hear what she had to say. Xie Wanying said: "Where is the limit of suitable technology, and where may the upper limit of organ transplantation be."
This is a further academic interpretation of what Pan said.
Wei and Pan's eyes seemed to be lit up with little stars. The corners of Cao Yong's mouth couldn't stop smiling.
How to understand Xie’s words?
First, let’s talk about the liver transplant surgery I’ve seen before. At that time, Xie participated in it and offered advice. The difficulty for doctors in the operation is due to the fact that the donor liver is too large and it is not suitable.
The ratio of donor to recipient has always been a basic threshold in all organ transplants.
Liver transplantation has such technical difficulties, as in heart transplantation.
Can it be like liver transplantation, if the heart donor is too big, it is suitable for cutting it small? Xie told reporter Li that the proportion of pediatric donor hearts can be as large as 2.5 times that of the recipient's original heart.
Regarding this crux, as long as you have a little common sense of anatomy, you know that the heart cannot be like the liver. The two organs, the liver and the heart, have different morphological, functional and structural aspects.
The overall structure of the heart is closely related to its function. The liver is not, the function of the liver mainly depends on the liver tissue. This allows one donor liver to be cut in two for two recipients. How can the heart be. The ratio of heart to donor and recipient is really stricter than that of liver transplantation. Here's another cool point, don't be afraid that the donor is too small for liver transplantation. On the contrary, as Xie said, the proportion of pediatric donor heart should not be less than 0.9 of the recipient's original heart. It shows that the acceptance of the proportion of small donors is much lower than that of liver transplantation.
Why is this?
The main functional output of the heart is to recycle blood throughout the body. Don't be afraid of a bigger donor, because many patients who need to receive heart transplantation have their own heart disease, which leads to the expansion of the myocardium and the size of the heart. Of course, it can't be too big to be too big, which will also cause problems such as secondary hypertension after surgery.
In contrast, the problem of too small donors is more difficult to solve: low cardiac output. Many heart disease patients are trapped in this problem at the end stage. If the transplanted heart fails to solve this important problem, the result may be equivalent to a white transplant.
The practical application of becomes: young children try to choose an older donor heart. Female patients choose male patient hearts. Male patients should be cautious when accepting a heart that is too much smaller than their own body weight.
These are exactly what Xie pointed out. The technical limit of "suitability" determines the technical limit of organ transplantation. All are the difficulties that need to be solved in the operation.
The threshold is higher for heart transplants than for liver transplants. Heart transplantation is definitely more difficult than liver transplantation, otherwise I am sorry for the two major surgical specialties.
Thank you for your support! ! ! Good night dears~
(end of this chapter)