674: C674 Valved Aortic Root Placement

C674 Valved Aortic Root Placement

Ouyang Yang thought for a while and made a suggestion.

"Perhaps we can remove the dilated aortic aneurysm and re-link the artery end with the short segment, and use the metal tube to link it."

Chen Qun shook his head.

"We don't know when the aorta wall will start to dilate again. Your method of thinking is correct, but your technique is completely wrong."

Looking at the picture, Chi Hong walked up and drew a few lines on the screen with her finger.

"If we remove the entire abnormal artery portion and shorten the ascending aorta portion …"

Before she could finish, Yang Xiaoquan interrupted her.

"The most critical part of the operation is the need for a long enough aorta to be connected to the transplanted heart. If the lesion is removed, there is no link point for the transplant. And a metal tube is too heavy for two hearts. "

Chen Qun thought about it and gave another answer.

"Then we can reduce the risk of aortic aneurysms by using a metal tube instead of a polytetrafluoroethylene graft," he said. In other words, we will perform a valved aortic root replacement operation, slightly modified it, and remove and replace the entire aneurysm segment. Expansion begins at the root of the aorta, leaving enough room for the heart to be implanted. "

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

"There is a 20 to 30 percent chance that the implanted catheter will rupture at the seams. It is too risky to do so. It would be better to have an artificial heart. "

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

"Elder Yang, if it's a conventional suture, it might break at the seams, but if we should use a new suture method, I can ensure that there are no sutures that break. If you will allow me, I can demonstrate a few times on the pig's heart, which is a particularly complicated method of stitching, but it is just the right way to deal with the situation. "

Yang Xiaoquan's eyes lit up. He waved his hand and arrogantly gave his conclusion.

"Alright, then show me a demonstration." "I'd like to know what's so special about this special suture method you're talking about and what advanced technology has been developed abroad."

Chen Qun rubbed his forehead and said in embarrassment.

"Elder Yang, this stitching method wasn't learned abroad. It's a three-dimensional, multi-link structure that my girlfriend designed. With a slight modification, it can be applied to the suture of the heart. But I still don't know how to use it in detail, so I need to practice it a few more times before I can find a suitable suture. "

While talking, Chen Qun took out his phone and uploaded the model blueprint of Dongfang Wenxincai's beautiful fantasy onto the screen. He then pointed at the part in the middle of the model blueprint.

"Elder Yang, look, the riveting state of this part of the structure is very suitable for the stitching of the heart's inner wall. As long as you identify these lines as sutures, you will be able to see that this method of stitching back and forth can solve the problem of sutures falling off. This way, we can divide the traditional seams into three parts, one at the edge of the seams, and the inner wall will also have to bear part of the brute force, greatly reducing the possibility of the seams falling apart. "

Yang Xiaoquan immediately took out his reading glasses and examined them carefully, but he couldn't find anything. However, he understood Chen Qun's meaning. He knew that adding two laps to the seams, in other words, the outer muscles that were easy to break had two layers of insurance, greatly reducing the risk.

He pondered for a moment before raising a question.

"Your method might be good, but you still have a question. How are you going to operate it?"

Chen Qun touched his forehead again in embarrassment.

"Elder Yang, I haven't thought of this question yet. However, if he practiced a few more times, he should be able to find a suitable method to operate it. In order to ensure that too many seams cause damage to the heart, I will ask Xin to use the computer simulation program to calculate the point of force and the point of contact, to minimize the number of stitches, and to ensure that there are sufficient supporting positions. "

Yang Xiaoquan couldn't help but sigh.

"You youngsters just think differently. In addition, modern technology is more advanced, so you all need to use computers to simulate the operation and give the best answer. It seems that your visit to the Hawaii has not been in vain, and has broadened your horizons by quite a bit. "If I was a few years younger, I would have gone there to study as well!"

Where did this come from?

I didn't learn anything there!

Chen Qun muttered to himself disapprovingly in his heart, but he couldn't say it out loud. He could use Elder Yang's words as a reason to conceal the existence of the system in his body.

A few hours later, Yang Xiaoquan saw the operation demonstrated to him by Chen Qun. The two hearts were also very different. The patient's heart was a 3D printed model that was very lifelike, just like his computer's display. It looked very lifelike, so there was no way to tell if it was a model or not. The other was a genuine pig's heart.0

Chen Qun held the scalpel and explained the process to Yang Xiaoquan.

"Now, I will transplant the damaged aorta and sew the severed end of the second heart into the aorta. "Zhao Xue, give me a 3-0 prilling suture!"

As he spoke, he held the scalpel and began to move the plastic catheter closer to the 3D heart. As he exerted a little force, the Vascular Wall above the heart opened a small crack, and the red blood that was imitating blood immediately flowed out.

"Dammit, give me the gauze, I'll stop the bleeding immediately." The wall of the aorta is thinner than paper. It is like sewing toilet paper. We need to replace the entire ascending aorta, not just one section. We need to build a new aorta out of PTFE. "

Yang Xiaoquan reminded him on the side.

"I'm afraid this is too risky. The difficulty of your operation has increased!"

"Elder Yang, I don't want to either, but that's the situation. It's not up to us to decide. There are always accidents when it comes to surgery, and we have to do it at random. Give me three segments of the polytetrafluoroethylene tube and some single stitches, and we'll create a new surgical technique. "

Yang Xiaoquan looked at Chen Qun's high-spirited appearance and knew that he had chosen the right person for the operation after capturing Chen. Most of the other doctors had given up. But Liu was able to adapt and immediately create a new plan to continue the operation.

Even though it was just a practice session in front of his eyes, Chen Qun was still very serious. Using an ingenious method, he sewed the plastic catheter onto the pig heart and the plastic heart according to the method that he had just created.

Yang Xiaoquan didn't even blink as he watched the catheter being operated on in the pig's heart. He knew that this was the key to the operation. If the pig heart did not fall off, then it meant that the true heart would also not fall off. After all, this was a brand-new method of stitching. There were three layers on the front, the back, and the inside.

Chen Qun's fingers were like embroidery as they moved the needle back and forth on the pig's heart. It took Chen Qun a full 30 minutes to finish stitching the tube and the pig's heart. He then picked up the tube and signaled to Chi Hong and Zhao Xue with his hand.

"All of you pull on this heart and see if it will break."

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

Chi Hong and Zhao Xue were also unceremoniously pulling on the plastic pipe, pulling it backwards with all their might. However, Chen Qun, who was holding the pig's heart, didn't move his palm at all. He only saw that the pig's heart was completely deformed, but it did not break at all due to the falling of the catheter.

"It worked. Your new sewing method has really worked. "Alright, this operation should be considered a success. You guys practice two more times before officially performing surgery on the patients."

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