A small heart repair surgery is not Zhou's ultimate goal in life.
Multiple heart valve replacement or even heart transplantation, this level of heart surgery, is Zhou's ultimate goal in life.
Zhou Sheng lay in bed, resting during the day, making him energetic.
The midnight snacks on the table are also ready.
Zhou Sheng closed his eyes.
He began his third journey to the dungeon outside of his heart.
[Intermediate Cardiothoracic Surgery (Director Level) Experience Copy].
The condition for opening this copy is still a high amount of medical achievement points, which requires 2,000 points.
The old rule is that if the completion rate reaches 60%, the medical points can be fully refunded.
Reading progress...
Realize the handover between the world and the virtual world...
Zhou Sheng appeared in the copy.
If you pass a director-level dungeon, even if you don't use the system's auxiliary functions, your hard power will reach Director Tian's level in your lifetime.
Therefore, this copy of Zhou Sheng no longer appeared in the clinic.
With the foreshadowing of the previous copy, Zhou Sheng, as an experienced doctor, is already familiar with common heart diseases.
So the diagnostic process is no longer needed.
Go directly to the operating table.
After the white light in front of Zhou Sheng's eyes faded, when he could see his surroundings clearly, he found that he was in a high-end laminar flow operating room.
There was a patient lying on the operating table in front of him.
Anesthesiologists, circulating nurses, and equipment nurses are all around.
There is no first assistant or second assistant, only one chief surgeon, Zhou Sheng.
In addition, there is also a neatly dressed female doctor.
Although the female doctor was fully armed, Zhou Sheng could tell from her eyebrows and body shape that this was Lao He.
It seemed that if I had any questions, she would still teach me.
Zhou Yisheng was still observing the situation in the operating room.
The patient's information has entered Zhou Sheng's mind.
The patient was a male, a patient with severe mitral regurgitation who required 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 is like a "one-way valve", ensuring that blood circulation flows from the left atrium to the left ventricle. When the left ventricle contracts, the heart squeezes the blood in the chamber, and the blood hits the valve. The mitral valve closes, and the blood does not flow into the left ventricle.
Atrium.
Mitral valve disease accounts for about 70% of valve diseases. However, it is said to be the entry level of valve surgery.
Mitral valve replacement is a surgical procedure in which a diseased heart valve is replaced with an artificial valve.
Replacing parts for the heart seems quite sci-fi.
But this surgery is not new.
As early as the late 1940s, there were related studies.
In 1960, American surgeon Starr and his collaborator Edwards implanted an artificial spherical valve and a silicone ball artificial heart valve into a patient with mitral stenosis for the first time.
, 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 cardiac surgery. In many places, the mortality rate of valve replacement is even lower than that of major abdominal surgery.
Since the valve needs to be replaced, an artificial valve is needed.
Artificial valves have also experienced nearly sixty years of development.
The current technology is quite mature.
What Zhou Sheng used in his copy is a mechanical valve, a valve made of hard metal as the main material.
The operation starts immediately.
The first is of course anesthesia.
Major heart surgery requires endotracheal intubation to assist breathing.
Intravenous fentanyl anesthesia.
Give gik solution before starting to protect the myocardium.
Anesthesia induction is completed.
Monday is born.
As for the surgical approach, without the help of the auxiliary system, Zhou Yisheng chose the most reliable thoracotomy approach, a median sternotomy incision.
Next is the normal operation.
Skin incision, subcutaneous tissue incision.
The skin incision is peeled off slightly to the right to expose the midline of the sternum.
Bleeding!
Stop the bleeding!
Due to the midline sternal incision, the sternum also needs to be processed.
After hemostasis is completely completed, remove the xiphoid process and use an electric knife to incise the periosteum along the midline of the sternum...
Use a wind saw to split the sternum lengthwise from bottom to top along the midline...
Zhou Sheng was very skilled in the chest opening process.
There was no problem, Lao He didn't play any role on the side.
Next is the treatment of the heart.
First, just like heart repair, the pericardium outside the heart still needs to be opened.
Zhou Sheng had already perfected this process in the second dungeon.
In reality, I just started using it once.
Of course there are no problems.
Lao He was on the side and showed no reaction.
Open the pericardium.
Atria and ventricles exposed.
All that's left is to replace the mitral valve.
At this time, Zhou Yisheng began to feel unfamiliar.
But don't worry, Lao He spoke from the side, "The pericardium is suspended from the skin, causing the right edge of the heart to rotate forward."
Zhou Sheng quickly followed suit.
The pericardium is suspended.
Lao He continued to command: "Establish extracorporeal circulation!"
This process is more complicated.
After Lao He finished speaking, Zhou Sheng suddenly couldn't move.
Then Lao He stepped forward and demonstrated the operation.
Zhou Sheng could only watch quietly.
By the time the demonstration was over, time seemed to have flown backwards.
The time came back when Zhou Sheng had just finished pericardial sling.
Lao He's order was issued again, "Establish extracorporeal circulation!"
Zhou Sheng understood that the system thought that he had not operated before.
Demonstrate it to yourself first.
With the previous demonstration, Zhousheng began to operate.
The patient's heart is cannulated to establish extracorporeal circulation.
The reason for establishing extracorporeal circulation is to cool down the heart and stop it.
Open-heart surgery requires a calm field of operation and no blood, so the blood circulation must be blocked until the next week to temporarily stop the heart. Only in this way can the heart be replaced with an artificial valve.
Extracorporeal circulation is established.
All that's left is to cut the flap, replace it, and sew up the artificial valve.
Of course, Lao He had to demonstrate this process in person.
Monday was like watching a movie again, watching from the side.
Demonstration completed.
Time goes backwards, Zhou Yisheng follows the example of a gourd.
Use a retractor to expose the mitral valve...
Use scissors to cut off the mitral valve...
Zhou Sheng cut a little more, but Lao He immediately reminded: "If you cut too much, you will damage the left ventricular wall. 5% will be deducted from the completion level."
Following Lao He's words.
Time goes back again.
On Monday, I started to cut off the mitral valve again.
…
From now on, I will only make a small mistake in my operation on Monday.
The operation will be restarted.
Of course, points will be deducted for completion.
Zhou Sheng had to work harder.
…
After some operations.
The mitral valve was finally replaced successfully.
The entire operation took more than 4 hours.
Monday was so-so and I could barely get by.
For this operation, 30% of the completion rate was deducted.
Fortunately, after the operation was successfully completed, a 20% completion reward was given, which gave Zhou Sheng a little hope.
This was only the first surgery Zhou had experienced in his life.
The copy of Monday's birth is still in progress...