Doctor Peerless

Chapter 665 Heart Stopped

That's right!

Even though Zhou Sheng was already familiar with this kind of total valve replacement surgery, he still had to be cautious.

But every patient's situation is different.

There are several pairs of eyes staring at him.

All four valves are to be replaced.

That has to come one by one.

Before that, however, a major project had to be undertaken.

Construction of extracorporeal circulation.Give your heart a break.

Extracorporeal circulation can be said to be a prerequisite for major heart surgery.

In the era when there was no extracorporeal circulation, heart surgery was known as a forbidden area for surgery.

After the invention of extracorporeal circulation, heart surgery without blood can be performed.

Now what Zhou Sheng has to do is to make the restricted area safe.

In the silent operating room.

Zhou Shengsheng's deep voice sounded: "No. 11 sharp blade."

The equipment nurse immediately handed over a sharp scalpel.

Modern surgery has strict requirements, and each instrument has its own use.

Holding the No. 11 sharp blade in his hand, the slender and thickened stainless steel handle fit perfectly in Zhou Sheng's palm.

Through the latex gloves, Zhou Sheng also felt that the hand felt very good.

Director Tian and Cao Xiangwen have also done many large-scale heart surgeries.

When he saw this scalpel, he knew that Zhou Sheng was going to cut the aorta and prepare for the aortic catheterization.

If it is said that the previous pericardium cutting, a young cardiologist can do it.

The establishment of extracorporeal circulation here is already a difficult operation.

Basic blood vessel cutting and suturing requires considerable experience.

Only veteran rulers who have experienced many battles can be handy.

Cao Xiangwen looked at it more carefully.

He wanted to see what level Zhou Sheng was outside of his heart from every movement of Zhou Sheng.

With the scalpel in hand, Zhou Sheng felt very at ease.

He raised the scalpel straight up.

Now he's going to make a breach in this aorta.

The technique is very important at this time.

A size 11 scalpel with a sharp point is fine for the job.

Zhou Sheng slowly moved the knife on the aorta.

The whole process is like carving flowers.

If you want to say that the most delicate surgical operation is vascular surgery.

The notch is opened and the prepared aortic cannula is inserted.

This intubation is also particular, too thin or too thick will not work.

An overly thin aortic cannula can cause increased perfusion resistance and even lead to tissue hypoperfusion; an overly thick aortic cannula can affect the blood flow output during systole because the cannula occupies too much space in the aorta.

Every bit is a detail.

However, these are not difficult for Zhou Sheng, who is already rich in heart surgery.

The tube was inserted into the aorta, and then fixed with a large dermal needle and 10-gauge silk thread.

Cannulation of the entire aorta was considered complete.

This is only the first step in the establishment of extracorporeal circulation.

Next, the superior vena cava and inferior vena cava cannulated, the left heart drainage tube was inserted, and finally the coronary artery perfusion needle was inserted.

At this point, the entire extracorporeal circulation is completed.

"Aortic Blocking Forceps!"

Zhou Sheng gave an order, and the equipment nurse at 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, blocking the aorta.The blood is blocked and can only be passed through extracorporeal circulation equipment.

At this time, cardioplegic solution is perfused, and the heart temporarily stops beating.

Stopping the heart is another powerful tool in cardiac surgery, just like extracorporeal circulation.

The purpose of cardiopulmonary bypass is to keep the heart bloodless.

But after the heart is out of blood, it still beats.

This kind of vitality is of course a symbol of life for the body, but for the surgeon, it is a kind of torment.

Heart surgery is a high-precision surgery, and a heart that is always "fluttering" is obviously not a good surgical environment.

At this time, cardioplegic fluid played a magical role.

Cardioplegia is a high-potassium solution. This solution is peculiar. When perfused into the heart, the potassium ions in it have an inhibitory effect on the heart muscle.

The heart will quickly go into a relaxed state and stop beating.

When the heart needs to resume beating, the operation is also very simple, as long as the aortic clamp is released, the blood will wash away the high potassium solution in the heart, and the heart will resume normal beating.

The bloodless and still operation environment is completed so far.

The patient's heart slowly relaxes.

Since birth, the heart that has been beating without stopping for nearly 70 years has finally quieted down under human intervention at this moment.

It is often said that life ends when the heart stops beating.

But this time, under the hands of a surgeon like Zhou Sheng.

This sentence needs to be rewritten.

At this moment, the heart stops beating, 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 Sheng.

The operating room was silent.

The dark red blood spirals and flows through several transparent conduits, and enters 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 the moment.

Although he has undergone many heart surgeries.

But every time he sees this kind of scene, he has a strong sense of ritual.

Heart stopped.

Only the equipment is running.

The sanctity of life makes Director Tian feel the pressure and responsibility.

Although he was not the chief surgeon of the operation, he still couldn't help but say, "Xiao Zhou, be careful."

Zhou Sheng knew that Director Tian's reminder was completely well-intentioned, it was a reminder from seniors to juniors, and it was also a kind of respect for life.

Zhou Sheng nodded and said, "Understood!"

Four valve replacements have officially begun.

First of all, Zhou Sheng chose to start with aortic valve replacement.

"No. 11 sharp blade!"

The equipment nurse handed it over.

Zhou Sheng picked up the scalpel again.

Make a small cut.

"Heart scissors!"

The equipment nurse handed it over.

Widen the incision.

"Single needle!"

Single needle thread suspension cutout.

The incision is fully opened.

Everyone in the operating room saw the calcified aortic valve clearly visible deep in the incision.

Follow the previous surgical protocol.

The aortic valve that has lost its function needs to be replaced by an all-metal mechanical valve.

The operation has been carried out here and entered the core operation.

In this part of the operation, Director Tian and Cao Xiangwen are also walking on thin ice.

Zhou Sheng operated it smoothly.

There is no way, there are things like surgery and talent, of course.

It's more about experience.

Heaven rewards diligence, this sentence is not wrong.

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 operating room suddenly became tense...

(End of this chapter)