Even though Zhou Sheng was already familiar with this type of total valve replacement surgery, he still had to be cautious.
But every patient's situation is different.
There were several pairs of eyes staring at him.
All four valves need to be replaced.
Then you have to do it one by one.
But before that, a big project still needs to be carried out.
Set up extracorporeal circulation. Give the heart a rest.
Extracorporeal circulation can be said to be a necessary condition for major cardiac surgery.
In the era before extracorporeal circulation, cardiac surgery was known as a forbidden area of surgery.
After the invention of extracorporeal circulation, bloodless heart surgery was possible.
What Zhou Yisheng has to do now is to make the restricted area safe.
In the silent operating room.
Zhou Shengsheng's deep voice sounded: "No. 11 sharp blade."
The instrument nurse immediately handed over a scalpel with a sharp blade.
Modern surgeries have strict requirements, and each instrument has its own use.
Holding the No. 11 tip blade in his hand, the slender and thickened stainless steel handle fit perfectly in Zhou Sheng's palm.
Even through the latex gloves, Zhou Sheng felt that they felt great.
Director Tian and Cao Xiangwen have also undergone many major heart surgeries.
When I saw this scalpel, I knew that Mr. Zhou was going to cut the aorta and prepare for aortic cannulation.
If we say that the previous pericardial incision could be performed by a young cardiac surgeon.
The establishment of extracorporeal circulation here is already a difficult operation.
Basic blood vessel incision and suturing require considerable experience.
Only veterans who have experienced hundreds of battles can be so good at it.
Cao Xiangwen looked more carefully.
He wanted to see from every action of Zhou Sheng's actions, what kind of level Zhou Sheng was inside and outside his heart.
With the scalpel in hand, Zhou Sheng felt very at ease.
He held the scalpel upright.
Now he's going to make a gap in the aorta.
Techniques are very important at this time.
A No. 11 scalpel is very sharp and suitable for this job.
Zhou Sheng slowly moved the knife on the aorta.
The whole process is like carving.
When it comes to the most exquisite surgical procedure, it has to be vascular surgery.
The gap is opened and the prepared aortic cannula is inserted.
This intubation is also very particular. It is neither too thin nor too thick.
Aortic cannulation that is too thin can cause increased perfusion resistance and even lead to insufficient tissue perfusion; aortic cannulation that is too thick can affect blood flow output during cardiac contraction because the cannula occupies too much space in the aorta.
Every bit is a detail.
However, these are not difficult for Zhou Sheng, who has already experienced many heart surgeries.
The tube is inserted into the aorta and fixed with a large leather needle and No. 10 silk thread.
The entire aortic cannulation is completed.
This is only the first step in establishing extracorporeal circulation.
Next, there are superior vena cava, inferior vena cava cannulation, left heart drainage tube insertion, and finally the coronary perfusion needle is inserted.
At this point, the entire extracorporeal circulation is completed.
"Aortic clamp!"
Zhou Sheng gave the order, and the instrument nurse on the side handed over a pair of slender pliers.
As you can tell from the name, it blocks the aorta.
Zhou Sheng took it and carefully clamped it on the ascending aorta to block the aorta. The blood was blocked and could only pass through the extracorporeal circulation device.
At this time, cardioplegic fluid is infused and the heart temporarily stops beating.
Stopping the heart is a powerful tool in extracardiac surgery, just like extracorporeal circulation.
The purpose of extracorporeal circulation is to keep the heart in a bloodless state.
But the heart will still beat after there is no blood.
This kind of vitality is of course a symbol of life for the body, but for the surgeon, it is a kind of suffering.
Cardiac surgery is a high-precision surgery. A heart that is always "beating" is obviously not a good surgical environment.
At this time, cardioplegia solution played a miraculous role.
Cardioplegic solution is a high-potassium solution. This solution is very strange. When perfused into the heart, the potassium ions in it will have an inhibitory effect on the myocardium.
The heart will quickly enter a relaxed state and stop beating.
When it is necessary to resume beating of the heart, the operation is very simple. Just loosen the aortic clamp and the blood will flush away the high potassium solution in the heart, and the heart will resume normal beating.
Bloodless, static surgical environment is now complete.
The patient's heart slowly relaxed.
Since birth, my heart has been beating continuously for nearly 70 years. At this moment, it finally calmed down due to human intervention.
People often say that when the heart stops beating, life ends.
But this time, under the hands of a surgeon like Zhou Sheng.
This sentence needs to be rewritten.
At this moment, when the heart stops beating, it is not the end of life. On the contrary, it represents the beginning of another life.
Of course, the beginning of this new life requires the superb skills of a surgeon like Zhou Yisheng.
There was silence in the operating room.
The bright red blood circulates and flows through several transparent conduits, entering the oxygenator, centrifugal pump, variable temperature water tank...
This is proof of the continuation of life.
Look at everything in front of you.
Director Tian was filled with emotions at this moment.
Although I have had many heart surgeries.
But every time he saw this kind of scene, he had a strong sense of ritual.
Heart arrest.
Only the equipment is running.
The sanctity of life makes Director Tian feel pressure and responsibility.
Although he was not the chief surgeon of this operation, he still couldn't help but said: "Xiao Zhou, be careful."
Zhou Sheng knew that Director Tian's reminder was completely well-intentioned. It was a reminder from the seniors to the juniors and a respect for life.
Zhou Sheng nodded and said: "Understood!"
The replacement of the four valves officially begins.
First, Zhou Yisheng chose to start with aortic valve replacement.
"No. 11 sharp blade!"
The nurse handed over the equipment.
Zhou Sheng once again used the scalpel.
Make a small cut.
"Heart scissors!"
The nurse handed over the equipment.
Expand the incision.
"Single needle!"
Single needle thread suspension incision.
The incision is completely opened.
Everyone in the operating room saw the calcified aortic valve clearly visible deep in the incision.
Follow the previous surgical plan.
The aortic valve that has lost its function needs to be replaced with an all-metal mechanical valve.
At this point in the surgery, the core operation has entered.
Director Tian and Cao Xiangwen were also walking on thin ice in this part of the operation.
When Zhou Sheng started to operate it, it was smooth and smooth.
There is no way, of course there are such things as surgery and talent.
It's more about experience.
There is nothing wrong with the saying that God rewards those who work hard.
Zhou Sheng, who has a lot of surgical experience, can completely crush Director Tian and Cao Xiangwen in this part of the operation.
"Valve forceps!"
"No. 15 round knife!"
Zhou Sheng issued two orders in a row.
The atmosphere in the entire operating room suddenly became tense...