Zheng Ren made a mattress suture on the anterior adventitia of the ascending aorta root and put it into the hemostat.
Then, he injected the cold cardioplegia syringe into the center of the mattress suture and inserted it into the ascending aorta.
He tightened the hemostat and fixed the intubation tube and the hemostat together with a thick thread. He connected the intubation tube to the perfusion device.
"Boss Zheng? What's the next step? "Lao He asked in advance.
"Left atrium."
"Okay."
There were two choices for the next step of the surgery.
Left atrium drainage or left ventricular drainage.
There were no advantages or disadvantages, only whether it was suitable or not. For the cardiopulmonary bypass surgeon, the left atrium and left ventricular drainage were slightly different. Lao He was using his professional details to show off to Boss Zheng.
I'm definitely more suitable than the twin sisters! Boss Zheng, look at me, look at me!
Look here, look here!
Zheng Ren could not hear the cries in Lao He's heart. He just felt that the surgery was much smoother than when he was alone in the System's operating theater.
He made a large mattress suture at the connection between the root of the right upper pulmonary vein and the left atrium and put a hemostat on it.
After making a small incision in the mattress suture ring, he inserted the left atrium drainage tube into the left atrium, tightened the hemostat, and tied it with a thick thread. He fixed the drainage tube and the hemostat together and connected the drainage tube to the artificial heart-lung machine.
After finishing all the operations, Zheng Ren checked all the tubes and their connections again. After checking that there were no mistakes and confirming that there were no obstacles in the various channels, he began the cardiopulmonary bypass.
The moment Lao He began the cardiopulmonary bypass, his hand speed skyrocketed.
Although he knew that he was already firmly number one, he wanted to leave behind a number that no one else could surpass.
There were not many heart surgeries performed since the 912, and the standard of the surgeons was also average, so Lao He did not have any status in the group.
Although it was a chat group, people with high standards had a certain degree of authority.
People who were in the field of technology all had similar common problems. Although it was just a chat group, it was not immune.
This time, he had to fight for his pride. Lao He glanced at the timer from time to time.
Although fighting for his pride was completely meaningless, it was completely different from the heart bypass surgery that had stopped his heart in the past.
However, even if the cardiopulmonary bypass retired from the stage of history in the future, he could still be considered to have left a record in the domestic surgical world … and even the world's surgical world!
5′05″！
When he saw the number, he was a little dazed.
The previous highest record was 9 ′ 22 ″. Boss Zheng's surgery had almost doubled the time needed to establish cardiopulmonary bypass!
What the f * ck, is this something a human would do?
After Lao He saw the time, he clenched his right fist and waved it fiercely.
Success, this must be the world record!
Although no one acknowledged it, in his heart, this was the world record!
He would go to the group to show off after the surgery. For now, he should focus on supporting Boss Zheng. He had to leave a good impression on Boss Zheng.
The slightest bit of carelessness would cause all previous efforts to go to waste.
The twin sisters were such powerful opponents. He was under a lot of pressure. Lao He carefully observed the progress of Zheng Ren's surgery from the patient's head.
After several minutes of cardiopulmonary bypass, he blocked the superior and inferior vena cava and entered a complete cardiopulmonary bypass.
At this time, the blood from the superior and inferior vena cava flowed completely into the heart-lung machine through the intubation and did not flow into the right atrium.
At the same time, he cooled down his blood.
Lao He kept reporting the blood temperature.
36 ℃ …
35 ℃ …
32 ℃ …
When the body temperature dropped to 30 ℃, Zheng Ren lifted the ascending aortic sleeve and used the aortic blocking forceps to block the ascending aorta.
Su Yun immediately poured 4 ℃ cold heart arrest through the perfusion tube at the root of the aorta. At the same time, Zhao Yunlong used 4 ℃ cold salt water or ice chips to cool the surface of the heart so that the heart would stop beating quickly.
Zheng Ren was very satisfied.
It was indeed much faster than the surgery in the System's operating theater.
There were two doctors who were so awesome that they could be the chief surgeons for type 1 aortic arch replacement surgery as assistants. There was also an anesthesiologist like Lao He who could anesthetize and perform cardiopulmonary bypass. Most importantly, there was also Little Yiren.
Not to mention anything else, Little Yiren's eyes curved into a smile. The exhaustion from not sleeping last night and only catching up on the plane was swept away.
Compared to this, the experience in the System's operating theater was extremely poor.
After blocking the ascending aorta, Lao He focused and began to continuously report various values.
Cardiopulmonary bypass was quite difficult. If he was not careful, the patient would not wake up.
"Arterial pressure, 70 mmhg.
"Central venous pressure, 9 cm water column.
"Body temperature, 27 degrees Celsius.
"Lao He, lower the body temperature a little more." Zheng Ren lowered his head to look at the operating area as he communicated with Lao He.
Under normal circumstances, the body temperature under cardiopulmonary bypass could be maintained at around 28 degrees Celsius.
However, if the surgeon judged that the surgery was very difficult and the surgery process was especially long, he would ask the cardiopulmonary bypass specialist to lower the body temperature a little more.
"How much?" Lao He asked.
"Deep hypothermia, 15 degrees Celsius," Zheng Ren said.
Lao He was shocked.
The cardioplegic fluid caused the heart to stop beating and quickly stopped all the bioelectric mechanical activities of the heart. It was conducive to conserving the heart's energy reserves.
Coupled with the deep hypothermia of the heart, it could further reduce the energy and oxygen consumption of the heart muscle, and reduce the accumulation of harmful substances such as carbon dioxide, hydrogen ions, and oxygen free radicals.
Deep hypothermia meant that the surgery would last more than three hours.
He immediately began to operate the instrument to lower the temperature.
"Heart muscle temperature, 15 degrees Celsius," Lao He said.
"Enough."
"Flow rate, 50 to 60 ml/kg."
"Lao He, take a look at the blood and Qi value." Zheng Ren held the blunt scissors in his hand and began to dissociate the pulmonary artery segment as he communicated with Lao He.
Talking did not delay Zheng Ren's operation. The surgery was done very meticulously.
After the cardiopulmonary bypass began, the patient's body temperature dropped below 25 degrees Celsius, and the heart muscle temperature also dropped to 15 degrees Celsius. Zheng Ren first observed the coronary artery.
There was no problem with the coronary artery, so Zheng Ren began to dissociate the pulmonary artery.
The pulmonary valve was located between the right ventricle and the pulmonary artery, preventing the blood that shot into the pulmonary artery from flowing back to the right ventricle.
The heart had two atrioventricular valves and two aortic valves.
The pulmonary valve was one of the aortic valves and had three semilunar valves. The leaf and annulus were relatively weak. The annulus was connected to the right ventricular funnel muscle and did not have a direct fibrous connection to the tricuspid valve.
It was time for the main event. Zheng Ren paused for a moment and took a deep breath. He held his breath and focused as he began to cut open the pulmonary artery. At the junction of the left and right valves.
When the knife fell, Zheng Ren was especially careful. He had never been so careful before.
He knew that if he cut through the pulmonary artery wall, he might injure the aorta. Moreover, the location was very deep and it would be difficult to stop the bleeding.
The lancet gently touched it and then used hemostatic forceps to separate it layer by layer.
It was still the smallest hemostatic forceps. Zheng Ren's fingers could not reach in, so he could only rely on touch.
At this point, he still did not use a microscope.
At this time, the assistant was relatively free. Su Yun did not say anything. Instead, he focused on watching Zheng Ren separate the pulmonary artery.
You've already exceeded your reading limit for today. If you want to read more, please log in.
Login
Select text and click 'Report' to let us know about any bad translation.
