"What are you talking about?" Chang Yue asked in surprise.

"Er..." Lao he scratched his head. He knew that Chang Yue couldn't go to the operation and was only responsible for writing medical records. "The epidural catheter was broken during appendicitis operation and continuous epidural anesthesia. It is said that he should stay in it for about 6cm more."

Zheng Rengang was about to speak when suddenly a "Ding Dong ~" voice came in his ear.

This voice has not been heard for a long time. Since he won the Nobel Prize, big pig hoof has not issued a task. Zheng Ren can only rely on the continuous task of [the best surgeon] to get insignificant skill points and experience values.

[urgent task: one in a million.

Task content: take out one epidural rupture catheter.

Task reward: in system data calculation, different rewards can be obtained by taking them out in different ways.

Task time: 24 hours.]

Zheng Renzhen has some big pig hooves. The task reward is still being calculated, so he promulgates the task? This is too lax.

And the focus is on taking out these six words in different ways.

Zheng Ren's first thought was to take out the broken epidural catheter surgically, but after seeing these six words, Zheng Ren hesitated. Since the big pig hoof gives a hint, it is not infeasible to try the method of interventional surgery.

Zheng Ren did not hesitate to enter the system operating room and click to buy surgical training. The system operating room sprang up and he strode in. To tell the truth, Zheng Ren is also a little interested in anesthesia accidents. After experiencing this kind of thing, if he encounters it, he won't have claws.

"Anesthesia catheter? Can it be broken? Paper paste." Chang Yue was particularly surprised.

Not only ordinary people, it is unimaginable for a physician that the catheter of epidural anesthesia will break.

What the hell is it? It's so weak! It's magical.

"Xiao Chang, this catheter fracture is not particularly rare..." Lao he hesitated and finally told the truth: "according to domestic statistics, the incidence is 0.06% ~ 0.2%, and the incidence abroad is 0.0017% ~ 0.04%."

"Why is it so bad?" Chang Yue asked in surprise.

"Look at your inexperience." Su Yun despised and seemed to have forgotten that he had just drunk fragments and was carried home not long ago. "Different materials and different ways to avoid some positions in anesthesia will cause similar things."

"Well, I recently encountered a case that I heard others say. When the trainee pulled out the tube, the tube broke inside without making the right effort." Lao he said seriously, "if you study carefully, there are many possibilities."

With that, he put down his cell phone and began to break his fingers.

"The causes of epidural catheter rupture in surgical anesthesia are complex, most of which are related to the operation of anesthesiologists, pathological or physiological changes in puncture area and catheter factors."

"For example, the main cause of catheter fracture during catheter placement is that the catheter is placed too deep. Generally speaking, fracture may occur if it is greater than 5 cm."

Then he pressed down the thumb of his left hand with his right hand, indicating that this was the first possibility.

"What's more, when encountering resistance during catheterization, the anesthesiologist was a little flustered and used excessive force to withdraw the tube and adjust it, but the Tuohy needle did not move with the operation, resulting in angle distortion and catheter fracture."

Then the second finger pressed down again.

Su Yun suddenly said, "brother Yang, you know why the boss and I have been praising you."

Professor Yang has a black line. He can really relate to himself. In other words, I drove unparalleled directly that day. It seems that I drove it right... I hope I can drive unparalleled anytime and anywhere in the future.

"Well, Professor Yang was right that day. Whether it's surgery or anesthesia, it's really not suitable to use violence." Lao he said, "another thing is that the position of Tuohy needle in the epidural space is improper, the catheter is located between the needle tip and the bone surface, or it is stuck into the intervertebral joint or bone suture. This requires a lot of anesthesia experience, and it is also prone to make mistakes."

The third finger pressed down.

"The cause of catheter fracture during extubation is related to excessive force when extubation meets resistance and repeated attempts to pull out the catheter that has been knotted or wound around the surrounding tissue."

"In addition, the patient's own pathological and physiological factors such as spinal stenosis, hyperosteogeny, pregnancy, connective tissue hyperplasia in epidural space and body position change are also important reasons for fracture during epidural catheter placement or extraction."

"Consumables also matter." Zheng Ren suddenly said.

"Are you sure? The probability of occurrence in China is much higher than that in foreign countries. The reason for the quality of consumables is one point." Su yundao.

"Material and model of epidural catheter... I remember some literature reported that nylon or polyurethane catheter was stronger than Teflon or polyethylene catheter, and 19g catheter tended to break in a fixed position near the tip." Zheng Ren finished, wiped his mouth and looked at Lao he.

Lao he immediately became serious.

Boss Zheng's meaning is very clear, but Lao he thinks he can't guess. It's better to listen to boss Zheng's opinions.

"Lao he, what does that mean?" Zheng Ren asked.

"I read the information on wechat. The person who had the accident was a director of anesthesia department in the following cities and counties. From the content, it should be sent in groups." Lao he said, "I didn't raise my head to greet and thank you at the end. It's estimated that the side has been confused and I don't know how to deal with it."

Just a word and an inquiry, Lao he saw a lot of things.

"What does he mean?" Zheng Ren asked.

"Boss Zheng, look at wechat." Holding his mobile phone, Lao he bent down and trotted to Zheng Ren.

[have you ever encountered the fracture of epidural catheter? What other solutions besides conservative measures?]

A very simple message. The sender is really confused. He doesn't even have the most basic thanks.

It looks a little vulgar, but many people are ignorant in unexpected situations. It's like going to the province for the first time and meeting Wang Hai who did cerebral angiography and pushed the catheter in.

At that time, Dr. Wang seemed to be a fool. Liu zewei and Gao Shaojie took turns to get the guide wire. After the failure, he didn't say a word. He took out the guide wire himself. He held his hand and didn't know what to say.

So Zheng Ren understands and can guess what the person who sent the message means.

"Lao he, ask him if he needs a hand." Zheng Ren said, "by the way, make it clear where people are."

"OK." Lao he answered without hesitation.

Although it's a job to wipe his ass, Lao he still doesn't have any stomach Fei. Hurry up to contact him.

"Boss, you really do all kinds of work." Su Yun had long guessed that his boss would itch, but when he said that, he couldn't help but feel sick in his heart and sprayed a sentence directly.