With the magnetic anastomosis ring, Zheng Ren quickly shortened the anhepatic phase to an unbelievable degree after adapting.
The previous' world record 'was like a piece of paper that could be broken with a single poke. The seemingly insurmountable obstacle of the test subject's sudden cardiac arrest was also successfully overcome by Zheng Ren.
After dozens of surgeries, the shortest anhepatic phase was eight minutes and twelve seconds.
This was undoubtedly a huge breakthrough, but it was just the beginning.
Zheng Ren focused on the surgery, installing the magnetic anastomosis ring and opening up the portal vein. This was the most difficult step in Zheng Ren's plan.
The sudden restoration of blood supply to the patient's heart was a problem. Could the patient's heart, which was already suffering from heart failure, hold up?
Sure enough, within three seconds of restoring the portal vein blood supply, the test subject's heart suddenly stopped.
After nearly thirty hours of surgical training, Zheng Ren came to a conclusion — he had to complete the surgery as soon as possible under cardiac compression.
However, the violent tremors during cardiac compression would affect the surgery. Cardiac compression under direct thoracotomy was too traumatic. Even if Zheng Ren managed to complete the surgery, the completion rate would not be high.
This meant that it would be difficult for the patient to survive the perioperative period after the surgery.
Zheng Ren did not even dare to leave the System's operating theater. Su Yun was watching him from outside.
Opening up the portal vein would indeed cause a sudden change in blood pressure. This was something Zheng Ren could not solve.
He could not be like a magician, who could use a 'displacement' skill to change the position of the liver.
The magnetic anastomosis ring could solve the problem of the prolonged anhepatic phase and was also helpful for the patient in front of him, but it could not solve all the problems.
Zheng Ren tried ten surgeries and was at the end of his rope, so he had no choice but to leave the System's operating theater.
It seemed that there were still a few treasure chests with paywalls that he had not opened.
Zheng Ren, who had never liked to rely on luck, had forgotten about the chests after getting them.
In fact, most of these chests contained experience points.
He glanced at the general surgery skill tree. There was still a long way to go before he could reach the peak.
Even if he opened a few chests and obtained a huge amount of experience points, it would not allow his general surgery skill to reach the peak and undergo a qualitative change.
Zheng Ren exited the System.
It was a very complicated surgery. Zheng Ren could not come up with a satisfactory solution even after going through it repeatedly.
"Boss, you think 15 minutes of anhepatic phase is not enough? Are you trying to go to heaven? " Su Yun said disdainfully, "The standard time for a surgery is three to four hours. I believe you can finish it within two hours. But the anhepatic period was at least 30 minutes before. Are you really going to shorten it to 10 minutes? "
"That's not the point." Zheng Ren's voice was a little hoarse as he said hoarsely, "Have you seen the patient's recent echocardiogram?"
"Yes, he's not in a good state."
"Yes, I'm thinking that after opening the portal vein, the change in pressure will cause cardiac arrest." Zheng Ren was in a state of desperation. All his attention was focused on the patient's safe end of the surgery, forgetting any flaws or loopholes in his plan.
"Stop jumping … Do you want to cut open the chest?" Su Yun asked after pondering for a few seconds.
"Direct vision CPR is the last step. There are many problems after a liver transplant. It's best not to open the chest and cause greater trauma, "Zheng Ren said firmly." Does the hospital have a magnetic ring for vascular anastomosis? "
"I'll contact him," Su Yun said. "Cardiac arrest … Chest … No, we opened the abdominal cavity."
Zheng Ren was stunned for a moment and immediately said, "Lower the diaphragm!"
Cardiac resuscitation through the diaphragm was a very rare method in clinical practice. It was an unconventional operation under special circumstances.
After all, he did not have enough experience. Under Su Yun's reminder, Zheng Ren worked hard to piece together the possibility of success.
F * ck!
Zheng Ren finally found a complete path this time. All that was left was to practice.
He immediately went to the System space, bought the System surgery time, and entered the operating theater.
This time, he was practicing cardiac resuscitation through the diaphragm. It was very difficult, especially under the premise that it did not affect the surgery. However, Zheng Ren still did it. The final successful compression method was learned from Fan Tianshui.
When they went out to eat and encountered a patient with spontaneous pneumothorax, Fan Tianshui used a straw to poke the waiter's chest. The method of exerting force was to gather the strength at a point and then explode it.
Zheng Ren remembered that Su Yun had asked Fan Tianshui for advice after that. He also tried to do it a few times and it was decent.
If that guy really knew it at a glance, there should be no problem. Zheng Ren could only place his hopes on Su Yun. If it really did not work, he could only perform the surgery with Gade Woods and do the heart compression himself.
Lin Yuan was dumbfounded. What was going on?
He had performed a liver transplant at Harvard. The procedure was about three hours, which was the advanced level in the world of surgery.
The length of the anhepatic period varied according to the level of the surgeon, but it would take at least 30 to 40 minutes.
With a sentence from Su Yun, the anhepatic period was shortened to 15 minutes.
This was not the most important thing. Boss Zheng did not seem to be satisfied with this time!
Moreover, he predicted that when the portal vein blood flow was opened, there would be cardiac arrest …
Cardiac arrest when the portal vein blood flow was opened was not a rare complication. Although Lin Yuan had not seen it with his own eyes, it was always there.
Boss Zheng had predicted the future, or his skill level had reached a certain level. He could directly kill him … It was not a big deal, but he could directly kill a group of instructors and professors at Harvard Medical School.
The next step was to find a dummy and try the technique? Lin Yuan was a little confused. At first, she could barely say a word or two, but now, her thoughts could not keep up at all.
"Based on the patient's condition, the frequency of compressions should be at least 100 to 120 times per minute," Su Yun said. "The key is when it will end," Zheng Ren said.
"After the artery anastomosis begins, the patient's condition should be able to improve."
"It will probably take one to two minutes to restore the normal physiological anatomy under the effect of drugs," Su Yun pondered.
Zheng Ren raised his head to look at Su Yun.
"Why are you looking at me?"
"Do you still remember how you and Old Fan learned how to use force?" Zheng Ren asked.
"Of course." Su Yun looked at Zheng Ren doubtfully. "Do you need such a special compression? F * ck! Boss, I can barely do it. I can't hold on for too long! "
Zheng Ren was very pleased to hear Su Yun say this.
"Boss Zheng, I can do it!" Lin Yuan said.
"Don't talk nonsense. What can your small arms and legs do?" Su Yun habitually retorted.
"What can't I do with diaphragmatic CPR?!" Lin Yuan said angrily.
"Tell me how to do it."
"Extend your right hand from the surgical incision below the diaphragm and place two to five fingers together on the diaphragm below the heart. Place your left palm on the lower third of the sternum and fix it. Use the coordination of the right elbow, wrist, and shoulder joint to drive the two to five fingers of the right hand toward the sternum rhythmically and push the diaphragm up by four to five centimeters. Then, quickly relax and return the diaphragm to its original position, "Lin Yuan said skillfully.
"Tsk tsk." Su Yun looked at him with disdain.
"What?" Lin Yuan raised his head and swung his ponytail.
"The basic theory is very solid," Su Yun said. "That's not the key. If it doesn't work, I can open the chest and do compressions under direct vision. The problem is how long can you last with a frequency of 100 to 120 compressions per minute? "
"…" Lin Yuan was speechless.
This was physical work, just like carrying the thigh in orthopedic surgery.
It did not sound difficult. Ordinary people had also come into contact with external chest compressions and could still maintain a high frequency of compressions for a few minutes.
However, it was not certain if the movements were correct.
However, that was conventional external chest compressions, not cardiac resuscitation through the diaphragm. This kind of unconventional compression required the right and left hand to cooperate with each other. The posture was strange and difficult.
However, this was not the most important thing.
Because the patient's condition was critical, the surgery had to be shortened and the normal physiological anatomy had to be restored.
The cardiac compressions had to be carried out at the same time as the anastomosis of the blood vessels.
The right hand was under the diaphragm and the surgeon had to anastomose the blood vessels. Not only did it need to be strong, but the patient's entire body could not move.
The difficulty could be imagined.
With Su Yun around, Zheng Ren felt that this surgery should be able to be completed. Thinking about it carefully, there did not seem to be any deviation.
"I'll do it as soon as possible," Zheng Ren said solemnly.
"It's okay." Su Yun smiled. "The chest opening equipment must be prepared. I'll call Zhao Yunlong. Once I … Your surgery takes a long time, you might have to open the chest. "
"Okay." Zheng Ren nodded.
Better safe than sorry. This was something that had to be considered.
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