"Hepatic occlusion. Fifteen-minute countdown." Ling Ran gave the order, and the nurses inside and outside the operating theater immediately adjusted the time.
Liang Xue took a deep breath and focused at the same time.
The most difficult part of liver surgery was that the liver had a rich blood supply, and it was difficult to control the bleeding caused by cutting, needling, and drilling. Modern medicine was very different from early Western medicine in that the amount of bleeding had to be controlled throughout the surgery. It could not be like the barbaric medicine in the early days, where people were eager to do things quickly and always amputate the limb and stop the bleeding after a few seconds.
However, compared to other organs in the human body, the liver was particularly fragile and important. After the blood supply of the liver was blocked, the probability of failure after the surgery was done was very high. Therefore, early clinicians created the "hypothermia anesthesia". The principle was a little similar to cardiopulmonary bypass. By using hypothermia, the body's resistance would be reduced, and blood flow could be blocked for a longer period of time.
However, the damage caused by this method was also great, and it would especially cause considerable pain to the patient. Therefore, when Wu Mengchao proposed the "intermittent hepatic portal block hepatectomy under normal temperature" method, it attracted the attention of the world.
What Ling Ran used today was the traditional method of intermittent hepatic portal block hepatectomy under normal temperature. First of all, without hypothermia anesthesia, the patient's pain would be reduced, and the prognosis would be better. Second, intermittent hepatic portal occlusion, which meant intermittent blood supply to the liver, could ensure the liver's activity to the greatest extent. This timing was also determined by Wu Mengchao after many experiments with experimental dogs.
Obstructing the hepatic portal blood supply for fifteen minutes and releasing it for five minutes could greatly reduce the incidence of acute liver failure after the surgery. At the same time, it could also reduce the occurrence of liver ischemia-reperfusion injury, thus improving the surgery's safety and success rate. This method used to be the "magic weapon" of liver surgery in China. In that era, it was a trick that could be used to "shock" foreigners at any time.
Of course, after being shocked several times, it was very quickly popularized internationally, so much so that it soon became one of the international standard surgical methods for liver surgery.
However, no matter how good the plan was, it could only reduce the damage. It was impossible to achieve no damage at all.
Therefore, during the fifteen minutes of hepatic portal occlusion, surgeons needed to do their best to operate. In this cycle of fifteen minutes, the fewer the number of cycles, the less damage to the patient's body.
From this point of view, the speed of the surgery became a very important indicator.
The reason why modern surgical instruments and equipment could be updated so quickly was not only because of the capitalization of medical treatment, but also because new technologies and new discoveries were very demanding on time.
If the same surgeon used a traditional scalpel, needle, and thread to perform surgery, his cutting and suturing speed would definitely be much slower than a doctor who used an endotherm knife. Similarly, the speed of a surgeon who used an ultrasonic knife would definitely be the best among doctors of the same level.
The mechanical arm of the da Vinci robot was equipped with a large number of functions. Logically speaking, it also had the function of increasing speed. However, in actual use, the surgical space greatly limited the doctor's performance.
No matter how big the pneumoperitoneum that could be created was, the operating space could not be compared to open surgeries. The 720 degrees of rotation of the robot's arm could only be made up for when it was used as a training ground in a snail's shell. Therefore, the total duration of the surgery performed by the da Vinci robot might exceed that of a human, and correspondingly, the precision of the surgery would be increased.
At this time, the only thing doctors could do was to focus and use their skills to make up for the gap in their skills.
Liang Xue's expression was solemn. He used everything he had learned and followed Ling Ran's movements closely.
He was a doctor who graduated from the General Surgery Department. It would be difficult for him to say that his liver skills were first-class in the country. However, he was very good as an assistant in this position. His understanding of the anatomical relationships in the abdominal cavity, his mastery of various advanced theories, his experience in solving problems in clinical surgeries, and his early familiarity with the da Vinci robot were all things that could be used as an assistant. He could play a role in this position, but there was no need for him to have such extravagant skills.
Therefore, Liang Xue also leaned on the control panel confidently and cooperated with Ling Ran's movements.
It was supposed to be a very simple operation.
In fact, it was very simple. From the beginning of the surgery until the first hepatic portal was blocked, Liang Xue's cooperation was very easy. When the first hepatic portal was blocked, Liang Xue appeared even more confident and calm.
Then, he heard Ling Ran shout, "Pay attention."
Liang Xue smiled and paid attention. Then …
He suddenly had a question about the control lever of the da Vinci robot.
'Why can't I keep up?' Liang Xue mumbled in his heart. He quickly went to work, but Ling Ran's operation still felt a little slow.
After more than ten surgeries, Ling Ran's control of the da Vinci robot had completely exceeded the level of proficiency.
And when he was able to control the machine perfectly, his Perfect Level Hepatectomy Skill would become extremely powerful.
What was even more different from open surgery was that the mechanical hand of the da Vinci robot could rotate 720 degrees. Therefore, when the chief surgeon really rotated the mechanical hand, it was a huge test for the doctor's spatial imagination.
If he had to describe it, a normal chief surgeon using the da Vinci robot was like flying a commercial plane. Although this plane could rotate forward, backward, left, right, and even counterclockwise, they would usually not do that. Even a doctor who was a little wild when it came to flying would try his best to ensure the degree of rotation.
Ling Ran's operation today was like a crazy pilot of a fighter jet.
When it was necessary, the mechanical hand under his control was almost constantly rotating.
Rotating.
It kept rotating.
Liang Xue felt that it was already a blessing for his body that he did not vomit.
"Countdown of ten seconds," Lu Wenbin reminded him in the operating theater.
Ling Ran acted as if he did not hear it. He continued to operate the machine madly.
"Five, four, three …" Lu Wenbin also did not stop reminding him.
Ling Ran only released the hepatic portal at the last moment.
"Countdown of five minutes." Lu Wenbin started the countdown again.
At this time, Ling Ran raised his head and looked at the control panel on the left. He asked, "How do you feel?"
Department Director Liang Xue raised his head and forced a smile. "No problem."
Liang Xue still puffed out his chest and raised his head in the face of the doctors inside and outside the room. He showed a calm expression, but his heart was roaring like a typhoon. 'Why does the machine I'm using look different from the one Ling Ran is using?'
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