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Chapter 674 Valved Aortic Root Replacement Surgery

Ouyang Yang thought about it and made another suggestion.

"Maybe, we can remove the dilated aortic aneurysm and reconnect the arterial ends, and the shorted part, we will use metal tubing to connect."

Chen Qun shook his head directly.

"We don't know when the thinned aortic wall will start to expand again. Your method is correct in thinking, but the method is completely wrong."

Qi Hong looked at the picture, walked up, and drew twice on the screen with her finger.

"If we cut out the entire abnormal arterial section and shorten the ascending aortic section..."

Before she finished speaking, Yang Xiaoquan directly interrupted her speech.

"The most critical part of the whole operation is to have a long enough aorta to connect to the transplanted heart. If the diseased part is removed, there will be no connection point for the transplant. The metal conduit is too heavy for two hearts. .”

Chen Qun thought for a while and gave another answer.

"Then we don't use metal tubes, but we use polytetrafluoroethylene for grafting, which can reduce the risk of aortic aneurysm. That is, we will do a valved aortic root replacement surgery, slightly modified, to remove and replace the entire artery Aneurysm segment. Dilation starts from the root of the aorta, leaving enough space for implantation in the heart.”

Yang Xiaoquan stood up, looked at the young man, and expressed his objection word by word.

"The implanted catheter has a [-]% to [-]% chance of breaking at the suture. The risk is too great and it's not worth it. It's more cost-effective to replace an artificial heart."

Chen Qun showed a bright smile and continued to explain the situation.

"Old Yang, if it is a conventional suture, it may break at the suture, but if we should use a new type of suture, I can make sure that the suture will not break. If you allow me, I can make a few pig hearts. For this demonstration, this stitching method is particularly complicated, but it can handle this situation just right."

Yang Xiaoquan's eyes lit up, and with a wave of his palm, he gave a conclusion boldly.

"Okay, then you can show me a demonstration. I would like to know what is so special about the special stitching method you mentioned, and what advanced technology has been developed abroad."

Chen Qun rubbed his forehead, very embarrassed to tell the truth.

"Mr. Yang, this suture method is not learned from abroad. It is a three-dimensional multi-link structure designed by my girlfriend. It can be used in the suture of the heart with only a slight improvement. To know how to apply it, you need to practice a few times before you can find the right suture method.”

While speaking, Chen Qun took out his mobile phone, uploaded the very beautiful and dreamy model structure diagram designed by Dongfang Wenxin to the screen, and pointed to a part of the structural introduction in the middle.

"Old Yang, look, the riveted state of this part of the structure is very suitable for suturing the inner wall of the heart. As long as these lines are seen as sutures, you can intuitively see this back and forth interweaving suture method, which can solve the problem of sutures." The problem of falling off. This method divides the stress point of traditional suture from one edge into three places, and the inner wall also bears part of the force, which greatly reduces the possibility of falling off and breaking."

Yang Xiaoquan hurriedly took out his reading glasses and looked at it carefully, but he couldn't see anything.However, he understood what Chen Qun meant, and knew that the suture line was added two times inward. In other words, the outer layer of muscles that were easy to break had two more layers of insurance, which greatly reduced the risk.

He pondered for a moment and asked a question.

"Your method is good, but there is another question, how do you operate?"

Chen Qun touched his forehead again with some embarrassment.

"Mr. Yang, I haven't thought about this problem yet. But after practicing a few times, I should be able to find out the appropriate operation method. In order to ensure that the sutures do not cause damage to the heart, I will ask Xiaoxin to use a computer simulation program to calculate Check the stress points and link points, reduce the number of sutures as much as possible, and ensure that there are enough supporting positions.”

Yang Xiaoquan couldn't help sighing deeply.

"You young people's ideas are just different. Coupled with the advanced modern technology, to do stitching, you all need to use computers to simulate calculations and give the best answer. It seems that your trip to Hawaii this time was not in vain. A lot of vision. If I were a few years younger, I would go to study and study!"

Where is this?
I didn't learn anything there!
Chen Qun muttered disapprovingly in his heart, but he couldn't say it out loud, so he could use Old Yang's words as an excuse to cover up the existence of the system in him.

After waiting for several hours, Yang Xiaoquan saw the operation demonstrated by Chen Qun.The two hearts are also very different. The patient's heart is a 3D-printed model, which is lifelike. Just like the display on his computer screen, it looks very realistic and cannot be distinguished as a model at all.The other one is a genuine pig heart.

Holding a scalpel, Chen Qun explained the process to Yang Xiaoquan.

"Now, I will transplant the damaged part of the aorta, and then suture the second heart to the interrupted end of the aorta. Zhao Xue, give me a 3-0 prolene suture!"

While speaking, he held the surgical forceps and began to put the plastic catheter close to the 3D heart. With a little force, he saw a gap in the blood vessel wall on the heart, and the red liquid imitating blood flowed out immediately.

"Damn, give me gauze and I'll stop the bleeding right away. This aortic wall is thinner than paper, it's like sewing toilet paper, it can't be grafted. We need to replace the entire ascending aorta, not just a section. We need teflon create a brand new aorta."

Yang Xiaoquan reminded him beside him.

"I'm afraid this is a bit too risky, and the difficulty of your operation has increased!"

"Mr. Yang, I don't want to, but the situation is like this. It's not up to us to decide. There are always various accidents in surgery, and we have to adapt accordingly. Give me a three-section Teflon graft, and some single-sewn grafts." Line, let's create a brand new technique."

Yang Xiaoquan looked at Chen Qun's high-spirited appearance, and knew that he had chosen the right person for arresting Xiao Chen for this operation.When other doctors encountered this situation, most of them gave up.But Chen Qun was able to adapt to the situation and immediately created a new plan to continue the operation.

Even though it was just a practice, Chen Qun was still very serious, using a very ingenious method to sew the plastic catheter to the pig heart and the plastic heart with the suture thread according to the method he had just created.

Yang Xiaoquan watched the operation of the catheter on the pig's heart without blinking, knowing that this was the key to the operation.If the pig's heart does not fall off, it means that the real heart will not fall off either. After all, this is a brand-new stitching method, with three layers of front, back, inside and outside.

Chen Qun's fingers were like embroidery, shuttled the needle back and forth on the pig's heart. It took more than 30 minutes for Chen Qun to complete the suture between the catheter and the pig's heart. Then he picked up the catheter and pointed at Qi Hong and Zhao Snow, two girls, raised their hands to signal.

"You pull this heart hard to see if it will fall off and break."

After he finished speaking, he clasped his hands together and held the pig's heart in his hands.

Qi Hong and Zhao Xue also tugged on the plastic catheter in an unceremonious manner, pulling it backwards forcefully.But Chen Qun, who was holding the pig's heart, didn't move his palm. The pig's heart in his palm was completely deformed, but no catheter or heart fell off and broke.

"It works. Your new suture method really came in handy. Alright, this operation should be considered a success. You should practice twice more before going on stage to perform the operation on the patient."

(End of this chapter)