Doctor Peerless

Chapter 645 Replacement Surgery
Zhou Sheng was not idle when resting at home.

Copy continues to brush up.

A small heart repair operation is not the ultimate goal of Zhou's life.

Heart surgery with multiple heart valves, or even a heart transplant, is the ultimate goal of Zhou's life.

Zhou Sheng was lying on the bed, the rest during the day made him refreshed.

The supper on the table is also ready.

Zhou Sheng closed his eyes.

Started his third trip to the copy outside the heart.

[Cardiothoracic surgery intermediate (director level) experience career copy].

The condition for opening this dungeon is still a high amount of medical achievement points, which requires 2000 points.

According to the old rules, if the degree of completion reaches 60%, it can be fully refunded to the medical point.

reading progress...

Realize the handover between world and virtual world...

Zhou Sheng appeared in the copy.

Director-level dungeon, if you pass this dungeon, even if you don't use the auxiliary functions of the system, you will reach the level of Director Tian in terms of hard power last week.

So this copy, Zhou Sheng did not appear in the consulting room.

With the foreshadowing of the previous copy, Zhou Sheng, as an experienced old doctor, is already familiar with common heart diseases.

So the process of diagnosis is unnecessary.

Go straight to the operating table.

After the white light in front of Zhou Sheng's eyes faded, when he could see the surrounding environment clearly, he found himself in an advanced laminar flow operating room.

On the operating table in front of him lay a patient.

Anesthesiologists, roving nurses, and equipment nurses are all around.

There is no first assistant, second assistant, only Zhou Sheng is the main surgeon.

In addition, there is a fully dressed female doctor.

Although the female doctor was fully armed, Zhou Sheng could tell from her eyebrows and figure that this was Lao He.

It seems that she has some problems for a while, and she still teaches.

Just as Zhou Sheng was still observing the situation in the operating room.

The patient's information has entered Zhou Sheng's mind.

The patient was a male with severe mitral regurgitation who needed mitral valve replacement.

Among the four valves of the heart.The mitral valve is located between the left atrium and left ventricle.

The mitral valve acts as a "one-way valve" to ensure that the blood circulation flows from the left atrium to the left ventricle.Heart When the left ventricle contracts, it squeezes the blood in the chamber and the blood hits the valve.The mitral valve closes and blood does not drain into the left atrium.

Mitral valve disease accounts for about 70% of valve diseases.But it is said to be the entry level of valve surgery.

Mitral valve replacement is a surgical procedure that replaces a diseased heart valve with an artificial valve.

Changing parts for the heart looks pretty sci-fi.

But this surgery is not new.

As early as the late 40s, there were related researches.

In 1960, American surgeon Starr and his collaborator Edwards used artificial spherical valves for a heart patient with mitral stenosis for the first time, and a silicone ball artificial heart valve was implanted in a patient with mitral stenosis , The patient survived for a long time after the operation, creating a history of artificial heart valve replacement.

It can be seen that this kind of surgery has a long history in heart surgery.In many places, the death rate for valve replacement is even lower than for major abdominal surgery.

Since the valve is to be replaced, an artificial valve is needed.

Artificial valves have also experienced nearly 60 years of development.

The current technology is quite mature.

What Zhou Sheng used in the dungeon was a mechanical flap.A valve made primarily of hard metal.

Surgery will begin immediately.

First of all, of course, is anesthesia.

Major heart surgery requires endotracheal intubation to assist breathing.

Intravenous compound fentanyl anesthesia.

Give GIK solution to protect the myocardium before starting.

Anesthesia induction ends.

Zhou Sheng played.

Surgical approach, without the help of an auxiliary system, Zhou Sheng chose the safest thoracotomy approach, a median sternotomy incision.

Next is normal operation.

Skin incision, subcutaneous tissue incision.

The skin incision is peeled slightly to the right to expose the midline of the sternum.

Bleeding!

Stop the bleeding!

Due to the median sternotomy, the sternum is also manipulated.

After hemostasis is completely completed, the xiphoid process is removed, and the periosteum is cut with an electric knife along the midline of the sternum...

Use a wind saw to split the sternum longitudinally from bottom to top along the midline...

Zhou Sheng performed the chest opening very skillfully.

There was no problem, and Lao He didn't play any role on the side.

Next is the treatment of the heart.

First of all, like heart repair, the pericardium outside the heart still needs to be opened.

In the second dungeon, Zhou Sheng has already practiced this process perfectly.

Just got started once in reality.

Of course there is no problem.

Lao He was on the side, but there was no reaction.

Open the pericardium.

The atria and ventricles are exposed.

All that remains is to perform the mitral valve replacement operation.

At this time, Zhou Sheng became unfamiliar.

But don't worry, Lao He said on the sidelines, "The pericardium hangs on the skin, causing the right edge of the heart to rotate forward."

Zhou Sheng hurriedly followed suit.

Suspend the pericardium.

Lao He continued to command: "Establish extracorporeal circulation!"

This process is more complicated.

After Lao He finished speaking, Zhou Sheng couldn't move suddenly.

Then Lao He stepped forward to demonstrate the operation.

Zhou Sheng could only watch quietly.

When the demonstration was over, time seemed to turn backwards.

The time point went back to Zhou Sheng who had just finished pericardial suspension.

Lao He's order was issued again, "Establish extracorporeal circulation!"

Zhou Sheng understood, just now the system thought he hadn't operated it.

Do a demonstration for yourself first.

With the previous demonstration, Zhou Sheng began to operate.

Cannulate the patient's heart to establish cardiopulmonary bypass.

Extracorporeal circulation is established because wait a minute, to cool down the heart and stop it.

Open-heart surgery requires a calm and bloodless surgical field of view, so the blood circulation must be blocked to temporarily stop the heart beating in the next week.This will replace the heart valve with an artificial valve.

Extracorporeal circulation was established.

The rest is to cut the flap, replace the flap, and sew the artificial valve.

Of course, this process had to be demonstrated by Lao He himself.

Zhou Sheng was watching it as if he was watching a movie.

The demo is over.

Time goes backwards, and Zhou Sheng draws on the gourd.

Expose mitral valve with retractor...

Cut out the mitral valve with scissors...

Zhou Yisheng cut a little too much, and Lao He immediately reminded: "Too much cutting will damage the left ventricular wall. The degree of completion will be deducted by 5%."

Following Lao He's words.

Time runs backwards again.

Zhou Sheng began to cut off the mitral valve again.

……

In the future, Zhou Sheng only needs to make a small mistake in the operation.

The operation will restart.

Of course, points will be deducted for the degree of completion.

Zhou Sheng had to work harder.

……

Do some work.

The mitral valve was finally replaced successfully.

The whole operation took more than 4 hours.

Zhou Sheng's so-so can be regarded as barely passing the test.

For this operation, 30% of the completion was deducted.

Fortunately, after the operation was successfully completed, another 20% completion reward was given, which gave Zhou Sheng some hope.

This is just the first operation that Zhou has experienced in his life.

The copy of Zhou Sheng is still going on...

(End of this chapter)