Mu Tao stood beside Old Wu, just like he always did.
In the operating room, Boss Zheng began to step on the line.
On the screen, the guide wire moved forward slowly. A few minutes later, it was placed at the end of the ophthalmic artery.
Since the superselection had to be as close to the retinal capillary network as possible, Boss Zheng used the thinnest guide wire.
It was even thinner than the guide wire used in neurosurgery. It was specially used for interventional surgery on infants.
This kind of guide wire was soft and cotton. No force was needed at all. If it was pleated during the superselection process, the possibility of superselection failure was very high.
However, Mu Tao watched as Boss Zheng controlled the micro-guide wire to move forward slowly without a single mistake or reoperation.
"Mu Tao, do you know Boss Zheng's technique?" Old Wu asked.
"Teacher, it should be related to the understanding of turbulence in the blood vessels," Mu Tao said. "Boss Zheng has a deep understanding of turbulence. I think it's because he's very good at interventional surgery."
"Yes." Old Wu nodded.
Overcoming the effects of turbulence was the most advanced theory and technique of interventional surgery. Old Wu had done interventional surgery for half his life. He only vaguely realized that the guide wire and micro-guide wire passing through the blood vessels would have a huge impact on the blood flow.
As for how to overcome it and increase the success rate of the surgery, Old Wu had no idea.
Boss Zheng had mastered the technique of dealing with turbulence at a young age. Old Wu was very impressed.
This was a technical breakthrough, but it was difficult to quantify and master.
The micro-guide wire entered but did not go to the limit. It stopped in the blood vessel and did not touch the surrounding blood vessel wall.
Just as Boss Zheng had speculated, a 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 surgery continued. Su Yun connected a syringe at the end of the catheter and began to inject saline with a small amount of contrast agent.
His movements were slow, careful, and delicate.
After the saline entered the retinal capillary network, Su Yun began to slightly increase the pressure.
The 'sticky' dye macromolecules were 'pushed' forward by the saline injected by the syringe.
Due to the gap between the catheter and the surrounding blood vessel wall, Su Yun had been carefully controlling the strength of the saline to avoid capillary rupture and bleeding.
This step required a lot of patience.
When it was time to be fast, Boss Zheng performed the surgery quickly. When it was time to be slow, Boss Zheng was not anxious at all and waited quietly.
Time flew by.
Twelve minutes later, the blockage began to move. The macromolecules deformed under the pressure and were "pushed" away bit by bit according to the pressure of the capillary wall.
Mu Tao knew that this was the hardest part of the surgery.
Here, one had to constantly change the force and make the pressure conform to the elasticity of the capillaries.
Three minutes later, Su Yun stopped.
Mu Tao's heart skipped a beat as he pressed the intercom button. He did not speak. Instead, he listened to the conversation between Zheng Ren and Su Yun.
"Boss, I can't take it anymore." It was rare for Su Yun to admit defeat. "The adaptability of the wall is not good. If I push it any further, I think the capillaries will break. If it's too weak, it won't be effective. "
"Oh, then let me do it." Zheng Ren took the syringe and said, "I did cardiac compression during the liver transplant. Your arm strain hasn't healed yet, right?"
"Old Fan rubbed me with Dida wine for a few days, and it's much better now. But if the surgery is too detailed, you still have to wait for a period of time. Look at you, the surgery is as slow as it can be. This is a work-related injury! "
"Oh, okay, it's a work injury," Zheng Ren answered lightly and did not say anything else.
"Slow down!" Su Yun was still worried and reminded him.
"It's okay. I know what I'm doing," Zheng Ren said. "She's still young. The elasticity of the retinal capillaries is good. I can feel the change in resistance. I'll be very careful. Don't worry."
"Suya, how much trouble have you caused me?" Su Yun began to nag.
"Brother Yun, I'm sorry," Xu Suya said softly, her voice trembling.
"Don't talk to the patient," Zheng Ren said. "The change in airflow during talking will cause the pressure of the capillary network to change."
"You're so troublesome," Su Yun said disdainfully. "Actually, life is not as difficult as you think. When you encounter a difficult situation, list all the solutions, and then you realize that you can't do anything, so you just give up. "
It was a sentence that came out of nowhere. It was not known if he was talking to Boss Zheng or Xu Suya.
Mu Tao was stunned when he heard that.
"Right, Old Mu?" Su Yun asked later.
"…"
He knew that he was' eavesdropping '. It turned out that he was talking to him. Mu Tao was speechless.
He was criticizing him for not doing well in the surgery. He did not talk about anything else but the interventional surgery. Who could guarantee that their surgery would be better than Boss Zheng's? Nonsense!
It was not just Boss Zheng. He should not be able to compare to Su Yun.
Mu Tao smiled and pressed the button on the intercom again.
If he did not want to listen, then he would not listen.
Looking at the image on the screen, after Boss Zheng took over, the overall speed of the surgery did not seem to be faster than when Su Yun did it.
Many black dots moved invisibly, almost undetectable.
However, as time passed, an hour and 35 minutes later, Mu Tao called out the previous image and did the overlapping processing.
This made the comparison much simpler and more direct. Many of the black dots moving at the blocked points were still very obvious.
The surgery was progressing slowly.
No one spoke. Old Wu and Mu Tao waited quietly.
Boss Zheng did not seem to be in a hurry. He was extremely patient. He carefully felt the pressure from the syringe and adjusted his strength at any time.
The surgery took a full four hours and 22 minutes.
The opening surgery was countless times more difficult than the destructive embolization surgery. It could be seen from the time it took.
When the last black shadow disappeared and the entire retinal capillary network was covered with contrast agent, Old Wu's body 'softened' for a moment. Then, he leaned against the back of the chair.
The blood vessels covered with contrast agent were like the roots of a plant. They transported sufficient nutrients to the retina, allowing the patient to see again.
The surgery could be said to be a success at this point. The teacher was too nervous. Mu Tao knew that.
The surgery did not look difficult. It was just opening the retinal capillary network. However, those who knew the surgery knew the difficulty of this surgery. If they were not careful, the surgery would fail. The patient might suffer the damage of permanent blindness.
However, this was only one eye.
"Boss Zheng, do you want to change hands and rest?" Mu Tao pressed the intercom and said.
"Su Yun, are you tired?"
"No."
"Then there's no need." Zheng Ren turned around. His eyes curved through the lead-lined glass, leaving a smile for Mu Tao.
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(Begging for heart, begging for monthly votes)
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