With the vascular anastomosis magnetic ring, Zheng Ren adapted and quickly shortened the time of the liver-free period to an incredible extent.
The previous "world record" was like a piece of paper, broken as soon as it was poked. The experimental subject's heart stopped and the seemingly insurmountable obstacle was successfully overcome by Zheng Ren.
After training on dozens of surgeries, the shortest time for a liver-free stage surgery was 8 minutes and 12 seconds.
This is undoubtedly a huge breakthrough, but it is only the beginning.
During Zheng Ren's operation, a magnetic ring for vascular anastomosis was installed to open the portal blood flow. This is the most difficult step in Zheng Ren's mind.
It is a question whether the patient's heart, which has already suffered heart failure, can sustain the sudden restoration of blood supply to the heart.
Sure enough, within 3 seconds of restoring portal blood supply, the subject's heart stopped.
After nearly 30 hours of surgical training, Zheng Ren came to the conclusion that the operation must be completed as soon as possible with heart compression.
However, the heart compression and violent trembling affected the operation. However, heart compression under direct vision through thoracotomy was too traumatic. Even if Zheng Ren managed to complete the operation, the degree of completion of the operation was not high.
This means that it is difficult for patients to survive the perioperative period after surgery.
Zheng Ren didn't even dare to leave the door of the system operating room. That guy Su Yun was staring at him from outside.
Opening the portal blood flow will indeed cause sudden changes in blood pressure, which Zheng Ren cannot solve.
You can't be like a magician. When a "replacement" skill is used, the liver changes position.
The vascular anastomosis magnetic ring can solve the problem of too long anhepatic period, and it can also be of certain help to the patients in front of us, but it cannot solve all problems.
Zheng Ren tried ten operations, but finally ran out of options and left the system operating room in desperation.
It seems that there are several krypton gold treasure chests that have not been opened before.
Zheng Ren, who has never been interested in things that involve chance, got the box and forgot about it.
In fact, most of these boxes also contain experience points.
He glanced at the skill tree of general surgery. It was still a long way from its peak.
Even if a large amount of experience points are opened in several boxes, it cannot make his general surgery skills reach the peak level and make a qualitative change.
Zheng Ren left the system space.
This operation was really a complicated one. After repeated attempts, Zheng Ren did not get a satisfactory solution.
"Boss, you think you can't do it even after 15 minutes of liver-free period? Do you want to go to heaven?" Su Yun said disdainfully: "The standard time for an operation is 3-4 hours. I believe you can complete it within 2 hours. But the time of the anhepatic period was at least 30 minutes before, are you really prepared to shorten it to 10 minutes?"
"That's not the key." Zheng Ren's voice was a little hoarse and he said in a hoarse voice: "Have you seen the patient's recent echocardiogram?"
"Look, it's in a very bad condition."
"Well, I consider that after opening the portal blood flow, the change in pressure will cause cardiac arrest." Zheng Ren entered a state of panic and did not think about any flaws or loopholes. All his attention was spent on how to make the patient safe. End of surgery.
"Stop beating... Do you want to open the chest?" Su Yun asked after pondering for a few seconds.
"Cardiopulmonary resuscitation under direct vision is the last step. There are many problems after liver transplantation. It is best to avoid opening the chest and causing greater trauma." Zheng Ren said firmly, "The magnetic ring for vascular anastomosis, the hospital has What?"
"I'll get in touch." Su Yun said, "Cardiac arrest... outside the chest... No, we opened the abdominal cavity."
Zheng Ren was startled for a moment, then immediately said, "Under the diaphragm!"
The cardiac resuscitation method of lifting and squeezing under the diaphragm is rare in clinical practice and is an unconventional operation method under special circumstances.
After all, he didn't have enough experience. With Su Yun's reminder, Zheng Ren worked hard to piece together the possibility of success.
Dry!
Zheng Ren finally found a complete path this time, and the rest was practice.
He immediately came to the system space, purchased system surgery time, and entered the operating room.
This time, he practiced subdiaphragmatic cardiopulmonary resuscitation. It is very difficult, especially without affecting the operation. But Zheng Ren still did it, and the successful compression method was learned from Fan Tianshui.
When he went out to eat and met a patient with spontaneous pneumothorax, Fan Tianshui poked the waiter's chest with a straw. The method of exerting force is to gather the power at one point and then explode it.
Zheng Ren remembered that Su Yun asked Fan Tianshui for advice after that, and he also tried it a few times, and it was decent.
If that guy really knows how to look at it, he should be fine. Zheng Ren can only place his hope on Su Yun. If that doesn't work, then the only option is for Gerd Woods to perform the surgery and do the heart compressions himself.
Lin Yuan was dumbfounded when he heard this. What is going on
I had a liver transplant at Harvard. The operation took about 3 hours and was at the advanced level in the world of surgery.
The length of the anhepatic period varies depending on the skill of the surgeon, but it should take 30-40 minutes.
And Su Yun shortened the liver-free period to 15 minutes with just one sentence.
This is not the most critical thing. Boss Zheng seems not satisfied with this time!
And it is expected that cardiac arrest will occur when portal blood flow is opened...
Liver transplantation, cardiac arrest due to open portal blood flow, is not a rare complication. Although Lin Yuan has never seen it with his own eyes, it always exists.
Boss Zheng is a prophet who has reached a certain level. He kills himself instantly... It doesn't matter to him, he kills all the tutors and professors at Harvard Medical School instantly.
The next step is to find a dummy and try the technique? Lin Yuan was a little confused. At first she could barely speak a sentence or two, but now she can no longer keep up with her thoughts.
"The patient's condition requires a compression frequency of at least 100-120 times/min." Su Yundao said, "The key is when to measure."
Zheng Rendao, "After the arteries and blood vessels begin to anastomose, the patient's condition should be relieved."
"It will probably take 1-2 minutes to restore the normal physiological and anatomical structure under the influence of the drug." Su Yun pondered.
When Zheng Ren looked up, it was just Su Yun.
"What are you looking at me for?"
"Do you still remember how you and Lao Fan used force?" Zheng Ren asked.
"Of course." Su Yun looked at Zheng Ren doubtfully, "You want such a special compression? I'll do it! Boss, I can barely do it, but it won't last too long!"
Zheng Ren was very pleased to hear what Su Yun said.
"Boss Zheng, I can do it!" Lin Yuan said.
"Don't talk nonsense. What can you do with those little arms and legs?" Su Yun said habitually.
"There's nothing that can't be done with cardiopulmonary resuscitation through the diaphragm!" Lin Yuan said angrily.
"Tell me how to do it."
"Stretch your right hand under the diaphragm from the surgical incision, place 2-5 fingers together on the attachment surface of the diaphragm behind and below the heart, and place the palm of your left hand on the middle and lower 1/3 of the sternum to fix it. Use the right elbow, wrist and shoulder joints to coordinate movements Drive the 2 to 5 palms of your right hand to push toward the sternum with rhythmic impact, moving the diaphragm up 4 to 5 cm, and then quickly relax the diaphragm to return to its original position." Lin Yuan said skillfully.
"Tsk, tsk." Su Yun looked disdainful.
"What?" Lin Yuan raised his head and flicked his ponytail.
"The basic theory is very solid." Su Yundao said, "This is not critical. If it doesn't work, I can open the chest and perform compressions under direct vision. The problem is the frequency of 100-120 compressions per minute. How long can you hold on?"
"..." Lin Yuan was speechless.
It's physical work, like carrying your thigh during orthopedic surgery.
It doesn't sound like it's difficult. Ordinary people have also been exposed to chest cardiac compressions, and they can still maintain high-frequency compressions for a few minutes.
But it’s not necessarily true whether the action is correct.
But that was conventional chest compressions, not subdiaphragmatic cardiopulmonary resuscitation. This kind of unconventional pressing requires the right hand and left hand to cooperate with each other. The posture is weird and difficult.
But, this is not the most important thing.
Because the patient's condition is critical, the surgical procedure must be shortened and normal physiological and anatomical structures restored.
Cardiac compressions should be performed at the same time as vascular anastomosis.
The right hand is under the diaphragm, and the surgeon also needs to anastomose the blood vessels, which requires strong strength but does not allow the patient's entire body to move.
The difficulty can be imagined.
With Su Yun here, Zheng Ren felt that the operation could be performed. If you think about it carefully, there seems to be no deviation.
"I will do it as soon as possible." Zheng Ren said solemnly.
"It's okay." Su Yun said with a smile, "Thoracotomy equipment must be prepared. I'll ask Zhao Yunlong to come with me. Once I... your operation takes a long time, you may have to open your chest."
"Yeah." Zheng Ren nodded.
Being prepared is something that must be considered.