"Director Li, prepare cardiopulmonary bypass."

Zhao Yuan glanced at the operation timer and looked at Li Xian.

Li Xian has already prepared accessories for cardiopulmonary bypass.

Zhao Yuan began to operate the extracorporeal circulation equipment, in fact, this kind of work should be done by an assistant.

However, Zhao Yuan did it himself.

Use hemostats to separate the space between the aorta and the pulmonary artery and cuff the ascending aorta.

The band that pulls up the ascending aorta to the left, exposing the medial aspect of the superior vena cava.

Zhao Yuan just stretched out his hand, and Gao Qian handed over the "right angle".

Immediately, Zhao Yuan used right-angle forceps to bypass the posterior sleeve along the medial side of the superior vena cava. Use the same method to circumvent the inferior vena cava with forceps as a backup.

At this time, Li Xian said, "You can start at any time." ”

Zhao Yuan nodded, "Start!" ”

As soon as the words fell, Li Xian clicked the button of the timer.

Cardiopulmonary bypass officially began.

Three people buried their heads in the patient's chest.

Zhao Yuan wore microscopic glasses to observe the lesion.

The heart is incomplete, not only the arteries are in bad condition, but also large areas of myocardial tissue are necrosis......

Although they had prepared for the worst before the operation, the mood of the three of them was still shocking at this moment.

"It's shocking. The heart is already full of holes, and he can still insist on giving birth to a child. Li Xian, who was as hard as iron, couldn't help but be moved, his eyes were slightly red, and the corners of his eyes were moist.

As a woman, Gao Qian couldn't control her emotions for a long time, tears flowed from the corners of her eyes, she could only exit the console, go to the corner, and silently adjust her emotions.

Everyone in the observation room saw that the doctor's condition had changed, and immediately began to discuss.

"Why did the operation stop?"

Director Gao seemed to be crying. Did Dr. Zhao cry angrily? ”

"Dr. Zhao never curses in the operating room. His mantra is that if there is time to do something else, it is better to focus on how to solve the patient's pain, and scolding is a waste of time. ”

"It should be too difficult! Director Gao was embarrassed to cry. ”

"What nonsense? Director Gao saw the condition of his heart and was touched by his mother's love. ”

"In fact, it has been suggested that patients should be given a heart transplant directly. Heart repair is too difficult. Giving you a scrapped car, even the most clever auto mechanic can't do anything if you don't give you the opportunity to replace parts. ”

"A heart transplant is not a particularly difficult operation. The key is to wait for the right organ. Patients can't wait any longer. If it can't be repaired, then settle for the next best thing, take the artificial heart, and wait for the organ to appear. ”

Gao Qian adjusted her mood and returned to the console.

"The condition of the heart is so bad that I need to have complicated heart reconstruction surgery."

Zhao Yuan glanced at Li Xian and Gao Qian, his eyes were firm, and he was also showing his attitude: The operation must continue!

There was a look of tenacity in their eyes.

They are also excellent cardiologists.

At this moment, it is impossible to surrender without a fight!

"For the sake of the patient's ability to persevere until now, we can't give up easily."

"Director Li, you do debridement and treatment of myocardial tissue necrosis; Director Gao, you do the reconstruction of blood vessels; I'm in charge of dealing with the valves. ”

"Okay! Let's divide the work! ”

Zhao Yuan only said a few key points, in fact, the problems of this heart are far more than these.

In the process of repairing, some minor problems can be dealt with by the three of them according to experience.

At the heart is the suite with four rooms.

The main door is the aortic valve, and the mitral and tricuspid valves are the windows through which blood will flow.

These "doors and windows" open and close when needed, allowing blood to flow normally in the atria and ventricles.

In patients with mitral valve prolapse, resulting in severe insufficiency, intraventricular blood regurgitation during cardiac contraction, resulting in increased pulmonary vascular pressure, poor pulmonary blood return leading to pulmonary congestion, severe edema of the pulmonary interstitium, and inadequate oxygen exchange.

The failure of the organs of the whole body is related to the problem in this place.

Because of ECMO, the severe hypoxia is improved, but the function of the organs is in jeopardy.

Zhao Yuan began to change the "doors and windows" for the heart.

There are three types of valves, one is a mechanical valve, the material is often titanium, this metal is the only metal material that does not affect the autonomic nerve, the second is the heart valve of pigs and cattle, and the third is the interventional umbrella type. 33

The first time Zhao Yuan came into contact with these materials, his first reaction was that this thing was too difficult to use.

Having tasted the sweetness of designing an aortic dissection stent, a bright light immediately flashed in Zhao Yuan's mind.

In the innovative design of the valve, it seems that another world-leading element can be introduced.

In another world, polymer valves are used.

In this world, the polymer valve route is being studied, but due to the limitations of material science, it has not yet been developed.

Zhao Yuan has the research direction of polymers in mind.

These polymers have a longer lifespan than conventional bovine pericardial valves, up to 20-25 years, require no anticoagulation, and do not produce noise when opening and closing.

Nowadays, Salamander Medical has a team in the field of materials, and if you can inform the team of your ideas, you may be able to cause a revolution in the field of valve products!

Putting aside distracting thoughts, Zhao Yuan devoted himself to the operation.

The advantage of using an imported mechanical valve is that it is used for a long time, but the disadvantage is that you have to take anticoagulant drugs.

At present, the mechanical valve products of Medtronic and St. Jude have occupied more than 80% of the global artificial valve market.

Of course, Abbott and Edwards Life Sciences biofilms are also quietly rising, the biggest advantage of biofilms is that they do not need to take anticoagulant drugs for a long time, but biological attenuation is a hard injury.

In fact, window replacement has formed a mature system in heart surgery. It can even be done through minimally invasive and interventional interventions, but the condition of the patient today is very bad, the myocardial tissue is necrotic and the blood vessels need to be replaced a lot, so even changing the window has to be very difficult.

While Zhao Yuan was dealing with the valve implantation, Li Xian was still dealing with the necrotic myocardial tissue.

Gao Qian has completed the interception of blood vessels and installed artificial blood vessels on the pulmonary arteries.

At this time, Zhao Yuan helped Gao Qian deal with the vascular part......

The three of them were busy and orderly, and the atmosphere seemed to be tense, but everything was under control.

Li Xian handled the repair of myocardial tissue and breathed a sigh of relief gently.

However, the operation is not over yet.

The heart is torn apart like a dismantled car engine.

Without skill and experience, it is difficult to recover it.

Li Xianzheng hesitated what to do if he came to reorganize himself.

Zhao Yuan had already begun to stitch up.

Li Xian came back to his senses.

He almost forgot that Zhao Yuan was the chief surgeon of this operation.

The most difficult part must be Zhao Yuan in charge of solving.

Zhao Yuan held the needle holder and shuttled back and forth in his heart.

Coupled with the previous operation, Zhao Yuan has been operated continuously for more than ten hours.

His condition is always stable, and every operation is still delicate and silky.

Some people died, but not completely......