Chapter 2172 Horribly Slow

Mu Tao stood beside Mr. Wu, as he had never done before.

In the operating room, Boss Zheng began to step on the line.

On the screen, the guide wire moves forward slowly, and after a few minutes, it rests on the terminal end of the ophthalmic artery.

Because superselection should be as close as possible to the retinal capillary network, Boss Zheng uses the thinnest guide wire.

It is thinner than the guide wire used in neurological interventional surgery, and it is the kind of guide wire specially used for interventional surgery on babies.

This kind of guide wire is soft and cottony, and no force is needed. The pleats in the super-selection process are particularly likely to cause super-selection failure.

However, seeing the micro-guide wire controlled by Boss Zheng move slowly, but without a single mistake or re-operation, Mu Tao felt emotional.

"Mu Tao, do you know Boss Zheng's method?" Old Wu asked.

"Teacher, it should be related to the understanding of the turbulent flow of blood in blood vessels." Mu Tao said, "Boss Zheng has a deep understanding of turbulent flow. I think this is the reason why he is particularly good at interventional surgery."

"Yes." Elder Wu nodded.

Overcoming the influence of turbulence is the most profound intervention theory and skill. Mr. Wu has done interventional surgery for half his life, but he only vaguely realizes that the guide wire and micro guide wire run through the blood vessels, and the blood flow will have a huge impact on them.

As for how to overcome it and increase the success rate of the operation, Mr. Wu was in awe.

Boss Zheng has already mastered the skills of dealing with turbulence at a young age, which Mr. Wu admires very much.

This is a breakthrough at the technical level, but it is difficult to quantify and even more difficult to grasp.

The microcatheter entered, but did not go to the most extreme position, but stopped in the blood vessel, without touching the surrounding blood vessel wall.

At the beginning of radiography, as Boss Zheng speculated, part of the retinal capillary network was blocked, which seriously affected the oxygen-carrying red blood cells to provide "nutrients" to the retina.

After confirming the condition, the operation continued. Su Yun connected a syringe to the end of the catheter and began to inject normal saline with a small amount of contrast agent.

His movements are slow, careful, and delicate.

After the normal saline entered the retinal capillary network, Su Yun began to increase the pressure slightly.

The "sticky" dye macromolecules are "pushed" forward by the normal saline injected by the syringe.

And because there is a gap between the catheter and the walls of the surrounding blood vessels, Su Yun has been carefully controlling the strength of his injection of normal saline, trying to avoid capillary rupture and bleeding.

This step requires a lot of patience.

When it was supposed to be fast, Boss Zheng performed the surgery quickly; when it was supposed to be slow, Boss Zheng was not in a hurry and waited quietly.

time flies.

After 12 minutes, the location of the blockage began to move. Macromolecules are deformed under the action of pressure, conforming to the pressure of the capillary wall, and being "pushed" away little by little.

Mu Tao knew that this was the most difficult part of the operation.

Here, it is necessary to continuously change the force slightly so that the pressure conforms to the elasticity of the capillaries.

After 3 minutes, Su Yun stopped.

Mu Tao's heart moved, and he pressed the intercom. He didn't speak, but listened to the conversation between Zheng Ren and Su Yun inside.

"Boss, I can't do it anymore." Su Yun rarely admitted cowardly, "The compliance of the tube wall is not good, and I feel that the capillary is about to break if I push it down. The strength is weak, and it has no effect."

"Oh, then I'll do it." Zheng Ren took the syringe, "It's the heart compressions during the liver transplantation. Your arm is still hurting."

"Old Fan rubbed me with Dieda wine for a few days, and it got better. But it will take a while to do the operation that is too detailed. You say, how slow the operation is, this is an industrial injury!"

"Oh, okay, it's a work-related injury." Zheng Ren replied flatly, without saying anything.

"Slow down!" Su Yun still reminded worriedly.

"It's okay, I know it well." Zheng Ren said, "She is still young, and the elasticity of the retinal capillaries is good. I can feel the change of resistance. I will be very careful. Don't worry."

"Suya, tell me how much trouble you have caused me." Su Yun began to chatter nonchalantly.

"Brother Yun, I'm sorry." Xu Suya whispered, her voice trembling.

"Don't talk to the patient." Zheng Ren said, "The change of the airflow during the speaking process will cause the pressure of the capillary network to change."

"There are so many things." Su Yun said contemptuously, "Actually, life is not as difficult as imagined. After encountering difficult things, list all the solutions, and then you find that you can't do anything, just give up gone."

I don't know if I'm talking to Boss Zheng or Xu Suya for a word without beginning or end.

Mu Tao was taken aback.

"Really, old Mu." Su Yun asked afterward.

"..."

He knew that he was "eavesdropping", so he was talking to himself, and Mu Tao was speechless.

This is because I didn't do a good job in surgery, but I don't talk about anything else, just talk about interventional surgery. Who can guarantee that his surgery can be better than Boss Zheng? nonsense!

Not only Boss Zheng, but I should be no match for Su Yun.

Mu Tao smiled and pressed the intercom button again.

If you don't want to listen, then don't listen.

Looking at the images on the screen, after Boss Zheng took over, the overall operation speed did not seem to be faster than when Su Yun performed it.

Many clogged black dots moved invisibly, almost impossible to detect.

But as time went by, after 1 hour and 35 minutes, Mu Tao called up the previous video and did overlapping processing.

In this way, the comparison is much simpler and more direct, and the movement of black dots in many clogged spots is still obvious.

The operation is proceeding slowly.

No one spoke, Mr. Wu and Mu Tao waited quietly.

Boss Zheng didn't seem to be in a hurry, he was patient, finely feeling the pressure transmitted from the syringe, and adjusted his strength at any time.

One operation took 4 hours and 22 minutes.

Open surgery is infinitely more difficult than destructive embolization surgery, which can be seen from the time.

When the black shadow finally disappeared and the entire retinal capillary network was covered with contrast agent, Mr. Wu's body "softened" for a moment, and then he leaned back on the back of the chair.

Those blood vessels filled with contrast agent are like the roots of plants, transporting sufficient nutrients to the retina, allowing patients to see again.

It can be said that the operation was a success. The teacher was too nervous, and Mu Tao knew it.

It seems that the operation is not difficult, just open the retinal capillary network. But those who know how to do it are aware of the difficulty of this operation. If you are not careful, the operation will fail, and the patient may suffer from permanent blindness.

However, this is just one eye.

"Boss Zheng, do you want to change hands, take a break?" Mu Tao pressed the intercom and said.

"Su Yun, are you tired?"

"Not tired."

"That's no need." Zheng Ren turned his head, his eyes bent through the leaded glass, and gave Mu Tao a smile.

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