Zheng Ren made a mattress-style suture on the anterior outer membrane of the ascending aorta root and put it into the hemostatic device.

Then, the cold cardiopulmonary fluid is infused with the needle and exhausted the gas, and then pierces it into the central part of the bedding suture and enters the ascending aorta.

Tighten the hemostatic device and fix the cannula and the hemostatic device together with thick wires. Connect the cannula to the perfusion device.

"What will Boss Zheng do next?" Lao He asked in advance.

"Left room."

"Okay."

There are two options for the next step in the surgery.

Left atrial drainage or left ventricular drainage.

There are no advantages and disadvantages, only suitable or not. For an extracorporeal circulatory expert, left atrial and left ventricular drainage are slightly different. Lao He is showing off to Boss Zheng with his professional details.

I must be more suitable for Boss Zheng than the twin sisters. Look at me, look at me.

Look here, look here

Zheng Ren couldn't hear Lao He's cry, but he just felt that the operation was much better than that in the system operating room by himself.

He made a large mattress-style suture at the connection between the base of the right upper pulmonary vein and the left atrium, and put it on a hemostatic device.

After cutting a small opening inside the mattress suture coil, insert the left atrium drainage tube into the left atrium, tighten the hemostasis, and ligate it with thick silk thread, fix the drainage tube and the hemostasis together, and connect the drainage tube to the artificial cardiopulmonary machine.

After doing all the operations, Zheng Ren checked all the pipes and their connections again, checked the errors, and confirmed that there were no obstacles in each channel and began external circulation.

At the moment when Lao He started the extracorporeal circulation, he rushed to his hand speed.

Although he knew he had already been the first, he wanted to leave a number that others could not surpass.

Since the previous 912 years, I didn’t do much heart surgery, and the level of the surgeons was average, so Lao He has no status in the group.

Although it is a chat and spanking group, people with high levels have a certain degree of authority.

People who work in technology have similar common problems. Although they are just a chat or communication group, they cannot avoid the vulgarity.

This time, you must make a sigh of relief. Lao He glanced at the timer from time to time.

Although it is completely meaningless to fight for this tone, it is completely different from the heart bypass surgery that was still in the past.

However, even if the extracorporeal circulation withdraws from the stage of history in the future, I have left a record in the domestic surgical world and even the world's surgical world.

5′05″

When he saw this number, he was a little dazed.

The previous record was 9′22″, and Boss Zheng's surgery significantly increased the time for establishing external circulation by nearly twice.

What a fuck, is this what people do

After seeing the time, Lao He clenched his fist with his right hand and waved it violently.

It's done, this is definitely a world record

Although no one recognizes it, in my heart, this is the world record

Let’s go to the group to show off after the operation. Now we should focus on providing a table for Boss Zheng. Those who travel around a hundred miles are half a dozen, but we must leave a good impression on Boss Zheng.

Don’t be careless in front of you, and all previous efforts will be wasted.

The twin sisters, such a powerful opponent, are under great pressure. Lao He carefully observed the progress of Zheng Ren's surgery from the patient's head position.

After several minutes of extracorporeal circulation, Zheng Ren blocked the upper and inferior vena cava and entered complete extracorporeal circulation.

At this time, the blood from the inferior vena cava completely flows into the artificial heart and lung machine through the cannulation, and does not flow into the right atrium.

Blood cooling is carried out simultaneously.

Lao He kept reporting blood temperature.

36

35

32

When the whole body temperature dropped to 30, Zheng Ren lifted the ascending aortic snail and used the aortic blocking forceps to block the ascending aorta.

Su Yun immediately poured 4 cold cardiac arrest from the perfusion tube at the root of the aorta. Zhao Yunlong used 4 ice saline or ice chips on the surface of the heart at the same time to cool the heart down quickly.

Zheng Ren is very satisfied.

It is indeed much faster than the surgery in the system operating room.

There are two awesome doctors who can perform type 1 aortic arch replacement surgery as assistants. There are an anesthesiologists like Lao He who can both anesthetize and have external circulation. The key is that Xiao Yiren is there.

Not to mention anything else, Xiao Yiren smiled with curved eyebrows and eyes. She didn't sleep all night last night, and she was exhausted from taking a break on the plane.

Compared with this, the experience in the system operating room is extremely poor.

After blocking the ascending aorta, Lao He began to report various values ​​continuously.

Extracorporeal circulation is quite difficult. If you are not careful, the patient will not wake up.

“Artificial pressure, 70hg.”

"Central venous pressure 9 cm water column."

"Body temperature, 27 degrees Celsius."

"Lao He, your body temperature drop a little more." Zheng Ren looked down at the operation area and communicated with Lao He.

Generally speaking, the body temperature under extracorporeal circulation is enough to maintain it at around 28 degrees Celsius.

However, if the surgeon judges that the operation is difficult and the course is particularly long, it will allow the external circulator to lower the body temperature a little further.

"How many" Lao He asked.

"Deep low temperature, 15 degrees Celsius." Zheng Ren said.

Old He was reincarnated.

Cardiac arrest fluid promotes cardiac arrest and quickly stops all bioelectric mechanical activities of the heart, which is conducive to preserving the energy reserves of the heart.

Coupled with local deep and low temperatures in the heart, it can further reduce the consumption of myocardial energy and oxygen, and reduce the accumulation of harmful substances such as carbon dioxide, hydrogen ions and oxygen radicals.

Deep low temperature means that the operation takes more than 3 hours.

He immediately started operating the instrument and lowered the temperature.

"Myristoral muscle temperature, 15 degrees Celsius." Lao He said.

"Enough."

“Flow, 5060kg.”

"Lao He, take a look at the blood and energy value." Zheng Ren held the blunt scissors in his hand and began to move away from the pulmonary artery segment, communicating with Lao He in his mouth.

Speaking did not delay Zheng Ren's operation on his hands, and the operation was done quite meticulously.

After the extracorporeal circulation began to operate, the patient's body temperature dropped below 25 degrees Celsius and the myocardial temperature also dropped to 15 degrees Celsius. Zheng Ren first observed the coronary artery.

The coronary artery was fine, so Zheng Ren began to freeze the pulmonary artery.

The pulmonary artery valve is located between the right ventricle and the pulmonary artery, inhibiting the reflux of blood flow into the pulmonary artery back to the right ventricle.

The heart has two atrioventricular valves and two large arterial valves.

The pulmonary artery valve is one of the major artery valves, with three and a half months of the valve. The leaflets and the valve annulus are relatively weak, and the annulus and the muscles in the right ventricular funnel are connected, and there is no direct fibrous continuousness with the tricuspid valve.

It was the highlight, Zheng Ren paused slightly, took a deep breath, held his breath and began to incite the pulmonary artery at the junction of the left and right valves.

When the knife was dropped, Zheng Ren was very careful and was unprecedentedly careful.

He knew that cutting through the pulmonary artery wall may damage the aorta, and the location is very deep and it is difficult to stop bleeding.

Lightly click the lancet, then separate layer by layer with hemostatic forceps.

It is still the smallest hemostatic forceps. Zheng Ren can't stretch his fingers in, so he can only touch them.

At this point, he still didn't use a microscope.
Chapter completed!