Chapter 543: A sudden flash of inspiration! "Director Li, prepare for extracorporeal circulation."
Zhao Yuan glanced at the surgery timer and looked at Li Xian.
Li Xian has prepared the accessories for extracorporeal circulation.
Zhao Yuan began to operate the extracorporeal circulation equipment. In fact, this kind of work should be completed by assistants.
However, Zhao Yuan did it easily by himself.
Use hemostatic forceps to separate the gap between the aorta and pulmonary artery, and cuff the ascending aorta.
Pull the band on the ascending aorta to the left to expose the inside of the superior vena cava.
Zhao Yuangang stretched out his hand, and Gao Qian handed over the "right angle".
Immediately, Zhao Yuan used right-angle forceps to wrap around the posterior cuff along the inner side of the superior vena cava. In the same way, he used the inferior vena cuff forceps to wrap around the inferior vena cava cuff as a backup.
At this time Li Xiandao, "You can start at any time."
Zhao Yuan nodded, "Start!"
As soon as he finished speaking, Li Xian clicked the timer button.
Extracorporeal circulation officially begins.
Three people buried their heads in the patient's chest.
Zhao Yuan wore microscope 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 necrotic...
Although they had prepared for the worst before the operation, the three of them still felt shocked at this moment.
"It's so shocking. His heart is riddled with holes, but he can still insist on giving birth to a child." Li Xian, whose heart 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 could no longer control her emotions. Tears flowed from the corners of her eyes. She could only exit the console and walk to the corner to adjust her emotions silently.
When everyone in the observation room saw the change in the doctor's condition, they immediately started talking.
"Why did the operation stop?"
"Director Gao seems to be crying. Are you crying because of Dr. Zhao's anger?"
"Dr. Zhao never curses in the operating room. His mantra is that if you have time to do other things, it is better to focus all your attention on how to solve the patient's pain. Swearing is also a waste of time."
"It must be too difficult! Director Gao was so embarrassed that he cried."
"What nonsense are you talking about? Director Gao saw the condition of his heart and was moved by maternal love."
"In fact, some people have suggested that the patient should be given a heart transplant directly. Heart repair is too difficult. If you are given a scrapped car and you are not given the opportunity to replace parts, even the most skilled auto mechanic will be unable to do anything."
"Heart transplant surgery is not a particularly difficult operation. The key is to wait for a suitable organ. The patient cannot wait any longer. If it cannot be repaired, the next best thing is to wear an artificial heart and wait for the organ to appear."
Gao Qian adjusted her mood and got back on the operating table.
"The condition of the heart is so bad that complex heart reconstruction surgery is required."
Zhao Yuan glanced at Li Xian and Gao Qian, his eyes were firm, and he also expressed his attitude: the operation must continue!
Both of them had a look of perseverance flashing in their eyes.
They are also excellent cardiac doctors.
At this moment, it is absolutely impossible to surrender without a fight!
"The patient has persisted until now for the sake of his child, and we cannot give up easily."
"Director Li, you are responsible for the debridement and treatment of myocardial tissue necrosis; Director Gao, you are responsible for the reconstruction of blood vessels; I am responsible for dealing with valve problems."
"Okay! Let's divide the work!"
Zhao Yuan only mentioned a few key points. In fact, the problems with this heart were far more than these.
During the repair process, if there are some minor problems, the three of them can handle them based on their experience.
The heart is the suite with four rooms.
The door is the aortic valve, the mitral valve, and the tricuspid valve are the windows, and blood flows through these doors and windows.
These "doors and windows" open and close when needed, allowing blood to flow normally in the atria and ventricles.
The patient's mitral valve prolapse leads to severe regurgitation. When the heart contracts, intraventricular blood refluxes, resulting in increased pulmonary blood pressure. Poor pulmonary blood return leads to pulmonary congestion, severe pulmonary interstitial edema, and insufficient oxygen exchange.
The reason why organs in the whole body fail is related to problems in this place.
Because ECMO was installed, the severe hypoxia situation improved, but the function of the organs was in jeopardy.
Zhao Yuan began to replace the "doors and windows" of the heart.
There are three types of valves. One is the mechanical valve, which is often made of titanium. This metal is the only metal material that does not affect autonomic nerves. The second is the heart valve of pigs and cows, and the third is the interventional umbrella type.
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When Zhao Yuan came into contact with these materials for the first time, his first reaction was that they were too difficult to use.
Having tasted the benefits of designing a stent for aortic dissection, a bright light immediately flashed in Zhao Yuan's mind.
In the innovative design of the valve, it seems that leading elements from another world can be introduced.
In another world, polymer valves are used.
In this world, some people are studying the polymer valve route, but due to limitations in materials science, it has not yet been developed.
Zhao Yuan has the research direction of polymers in his mind.
These polymers have a longer service life than traditional bovine pericardial valves, reaching 20-25 years, do not require anticoagulation, and produce no noise when opening and closing.
Now Salamander Medical has a team in the field of materials. 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 imported mechanical valve is used. The advantage is that it lasts longer, but the disadvantage is that it requires taking anticoagulant drugs.
Currently, in clinical practice, the mechanical valve products of Medtronic and St. Jude once occupied more than 80% of the global artificial valve market.
Of course, Abbott and Edwards Life Sciences biofilms are also quietly emerging. The biggest advantage of biofilms is that they do not need to take anticoagulant drugs for a long time, but biodegradation is a flaw.
In fact, window replacement has formed a mature system in cardiac surgery. It can even be completed through minimally invasive and interventional procedures, but now the patient's condition is very bad. Large areas of myocardial tissue are necrotic and blood vessels need to be replaced in large quantities. Therefore, even window replacement is difficult.
It requires a lot of difficulty.
While Zhao Yuan had processed the valve implantation, Li Xian was still dealing with the necrotic myocardial tissue.
Gao Qian has completed the interception of blood vessels and installed the artificial blood vessels on the pulmonary artery.
At this time, Zhao Yuan helped Gao Qian deal with the blood vessel part...
The three of them were busy in an orderly manner, and the atmosphere seemed tense, but everything was under control.
Li Xian finished repairing the myocardial tissue and breathed a sigh of relief.
However, the operation is not over yet.
The heart was torn apart like a dismantled car engine.
Without skills and experience, it is difficult to restore it.
Li Xianzheng was hesitant about what he should do if he reorganized it himself.
Zhao Yuan had already begun to sew.
Li Xian came to his senses.
He almost forgot that Zhao Yuan was the chief surgeon of this operation.
The most difficult part must be solved by Zhao Yuan.
Zhao Yuan held the needle holder and moved it back and forth across his heart.
Including the previous operation, Zhao Yuan had been operating continuously for more than ten hours.
His condition is always stable, and every operation is still delicate and smooth.
