Next.

Nine a.m.

In the operating room.

What is about to be carried out at this moment is a craniotomy for female Internet celebrities, and the preoperative anesthesia is carried out by Wen Shen and Zhao Heng together.

Originally, if you had to do surgery, you had to wait for the anesthesia to be ready, and the chief surgeon would enter the operating room, but today, the chief surgeon Liu Ziang rarely appeared in the operating room in advance, because he was too curious about Zhao Heng.

Liu Ziang wanted to see to what extent the "perioperative brain function and consciousness recovery" technology in Zhao Heng's hands had reached.

If Zhao Heng's technique can reach the level that Liu Ziang wants, then Liu Ziang will be able to perform surgery on several patients before.

In the final analysis, surgery is a comprehensive work that requires the cooperation of many aspects, and the surgeon is only the most important part of completing an operation.

And now, the routine anesthesia part, Wen Shen has been completed, and next, it's up to Zhao Heng.

Whether the patient can wake up and regain consciousness after surgery depends on how Zhao Heng did during the operation.

"Xiao Zhao, it's up to you next."

Wen Shen said to Zhao Heng very solemnly.

Originally, Zhao Heng learned this technology from Huang Lao was very cutting-edge, if it weren't for Zhao Heng's hanging, with his qualifications, even if he studied with Huang Lao every day, without three or five years of study and practice, he wouldn't want to master such a difficult technique.

"Hmm."

Zhao Heng nodded and looked at the patient lying on the bed, at this moment her scalp was covered with electrodes, which were connected to an electroencephalograph (EEG), which could monitor the patient's brain electrophysiological activity in real time.

"Is the brain cell nutrition drug ready?"

Zhao Heng turned around and said to Xu Manni, the instrument nurse who cooperated with this operation.

Speaking of which, although Xu Manni is an instrument nurse, she rarely encounters an operation with Zhao Heng.

The main reason is that Zhao Heng's current anesthesia work is basically "booked" by various departments.

Now, the surgeons of the entire East Hospital want to find Zhao Heng for surgical anesthesia, which leads to the fact that Zhao Heng's surgical anesthesia in the next three days is basically booked by surgeons from various departments.

But this is not surprising, Zhao Heng has a strong level and good communication skills, the most important thing is that with the experience of falling and fusing Huang Lao and Gao Jun, Zhao Heng can deal with all kinds of tricky situations in surgical anesthesia.

Of course, in addition, every time he cooperates with the operation, the surgeon can more or less drop some skills, and the skill experience happens to be related to the operation.

After integrating these skills and experience, Zhao Heng is more familiar with how to operate, and he can better understand the thoughts and even habits of the chief surgeon.

Therefore, in the hearts of all surgeons in Dongfang Hospital, Zhao Heng is already a well-deserved "gold medal assistant"!

"Hmm."

Xu Manni nodded.

For Xu Manni, now cooperating with Zhao Heng is completely different from the previous feeling.

"The amount of citicoline and piracetam was adjusted to one-half of the normal value, and the amount of ganglioside and hemovidin was adjusted to one and a half times the normal value."

Zhao Heng kept giving instructions.

And Xu Manni is also constantly adjusting the dosage of brain cell drugs.

During this period, Zhao Heng was staring at the EEG waveform on the EEG machine.

"Xiao Zhao, what are you looking for?"

Wen Shen saw that Zhao Heng had been looking at the brain waveform on the screen, and couldn't help but ask with some confusion.

The brain is very mysterious and complex, and Wen Shen, as a doctor, naturally understands this brain waveform, but he doesn't have this experience for deeper things.

"I'm afraid Dr. Zhao is looking for a special EEG waveform, under which the brain will be in a special state to be activated, am I right?"

Liu Ziang, who was standing on the side, saw some clues, he was originally a brain surgeon, and he was very familiar with the brain waveform.

Liu Ziang said that this state to be activated, he has only heard of it.

"Yes, only in this state can the damage to the brain be minimized by anesthetic drugs and surgery."

Zhao Heng nodded and said.

"In this way, the application of these brain cell drugs is to guide this special state?"

Liu Ziang asked again.

"Yes, the patient's brain waves are now in δ waves, with a frequency of 1 Hz and an amplitude of 40 μV, in this case, it is difficult for the patient to wake up after surgery.

Therefore, it is necessary to adjust the patient's δ wave to 3Hz and the amplitude to more than 100μV to ensure that the patient can wake up normally after surgery. ”

Zhao Heng briefly said what he was doing.

However, after all, the operation of adjusting the frequency and amplitude of brain waves through the combined application of drugs is rarely used in clinical practice, at least in China.

Even if some medical institutions are studying this technology, it is only adjusted on normal people, and the difficulty of adjusting to patients during surgery is increasing exponentially.

As soon as Zhao Heng said this, everyone in the operating room had a feeling of uncertainty.

"Well, when I was studying abroad, I heard that Merlin Clinic was working on such a project, but I didn't expect to see it with my own eyes now."

Liu Ziang nodded and said with some emotion.

After a while, Zhao Heng saw that the brainchild waveform had changed, which basically met expectations, so Zhao Heng said to Liu Ziang: "Senior, it's time for surgery." ”

"It needs to be adjusted after this operation, and now it is in the state of waiting to be activated, and it must be adjusted to α waves after the operation, so that the patient can wake up completely."

Liu Ziang nodded and asked Zhao Heng again.

"Yes."

Zhao Heng replied in the affirmative.

"It's a sky-breaking difficulty."

Liu Ziang sighed.

Speaking of which, we have to introduce the band division of brain waves.

Brain waves can be divided into four bands, namely δ (Delta) waves, which can be recorded in infancy, immature intelligence, and adults in extreme fatigue, lethargy or anesthesia;

theta (Sita) waves, which are more pronounced in adults with frustrated will, depression, and psychosis;

α (alpha) waves, which are normal brain waves, have the most pronounced rhythm when they are awake, quiet, and with their eyes closed;

Finally, there are β (beta) waves, which have the highest frequency and appear only when mental tension and emotional excitement are stimulated.

What Zhao Heng has to do is to adjust the patient's δ wave to α wave after surgery, and go through theta waves in the middle, which is naturally self-evident.

Wen Shen also nodded, in daily anesthesia work, there are often cases where the patient's breathing, heart rate, blood pressure and various indicators are adjusted due to the needs of surgery.

But adjusting the brain waves?

He really hadn't seen it with his own eyes.