The contents of the medical records, Zheng Ren has read some before. Because of Mayo's concealment, the stent surgery and removal surgery of renal artery stenosis were not seen.

However, in a later email communication, the research team of the Mayo Clinic also admitted this, but only sent the surgical process of stent surgery, and the removal process was not related to the patient's condition.

This paragraph is the first time Zheng Ren has seen it.

The stent of the renal artery stenosis was removed during the operation, and there was nothing to see in the whole surgical process, Zheng Ren mainly looked at the change in the patient's physical state after the stent was removed.

After the stent was removed, the patient's blood pressure was unstable, and because of the need to avoid changes in blood pressure caused by mood swings, he was calmed and ventilated to assist breathing.

All kinds of rescue drugs were basically used all over again. Vasopressors and antihypertensive drugs were used in turn, and the patient's condition returned to the preoperative level after 5 days.

It's just that the blood pressure before the operation is very high, and after tossing for so long, it returns to the preoperative state, and the operation can be said to be a failure.

That's why the research team is so secretive about it, Zheng Ren guessed.

"Boss, I don't think there's a problem with this messy bracket. Professor Rudolf Wagner said.

"Well, my guess is that radiofrequency ablation caused abnormal physiological structural changes in the renal arteries and renal sympathetic nerves. Zheng Ren said: "If you go down to the stent and compress the renal sympathetic nerve for a long time, there will definitely be a problem." ”

The professor was stunned.

He rubbed his eyes and looked carefully at the imaging examination, and could only see that there were fibrous cords, but he could not judge that the renal sympathetic nerve and the renal artery were fused.

However, Professor Rudolf Wagner, who had become accustomed to following Zheng Ren's diagnosis, did not continue to speak, but followed Zheng Ren all the way.

Professor Danilo Acosta ran out to make a phone call when Zheng Ren started to read the materials.

It was nine o'clock at work, and he wasn't sure if the Chinese doctor was going to have an operation early in the morning.

And there is still some related work to be done before the operation, Danilo really doesn't like Zheng Ren, it seems that all the troubles are created and brought by Zheng Ren.

Zheng Ren watched the film and already had a comprehensive understanding of the condition.

Because he has done anatomical work in the system operating room, Zheng Ren's understanding and cognition of the entire condition is the most comprehensive.

Others, even the world's top professors and doctors at the Mayo Clinic, can only guess.

This is Zheng Ren's unique advantage.

The first percutaneous renal sympathetic radiofrequency ablation procedure performed by the Mayo Clinic was almost textbook perfect, accurate and delicate.

But this kind of accuracy and delicacy is only the kind in the conventional sense. Zheng Ren's heart suddenly moved, and he entered the system space.

Click on the surgical training time, the system operating room rises from the ground, and Zheng Ren starts the operation.

Jeong-in is going to have surgery, not surgery, but radiofrequency ablation.

Of course, it is not a normal radiofrequency ablation, Zheng Ren directly regarded the experimental subject as a general teacher, began to dissect, and performed radiofrequency ablation surgery under direct visual vision.

Radio frequency is a high-frequency vibration with a frequency of 150,000 vibrations per second.

The human body mainly relies on ion movement to conduct current, and under the action of high-frequency alternating current, the direction of ion concentration changes with the direction of the current in a positive or negative half-cycle round-trip.

Under high-frequency oscillation, ions rub against each other and collide with other particles to produce biothermal effects.

Radiofrequency ablation was first applied to patients with arrhythmia, and later it was found that the tumor had poor heat dissipation, which made the tumor tissue temperature higher than its adjacent normal tissue, and the cancer cells were sensitive to high heat, and the high heat could kill the cancer cells without side effects.

Therefore, radiofrequency ablation is also used as a treatment for tumors, and the effect is equivalent to surgical resection.

Zheng Ren's third liver cancer interventional surgery for Zheng Yunxia in Haicheng First Hospital used radiofrequency ablation.

The operation was very successful, and Zheng Yunxia has not found any signs of recurrence of the tumor tissue after the operation, and the effect is almost the same as surgical resection.

In the operation of renal sympathetic nerve radiofrequency ablation for the treatment of nephrogenic hypertension, such a consequence occurred, and it must be that the frequency of radiofrequency ablation is wrong, Zheng Ren guessed.

Give it a try and find out.

Anyway, after Zou Jiahua had surgery, there is still a lot of time for surgical training.

In fact, Zheng Ren's curiosity about unknown things is very heavy, especially the various unknowns in medical treatment, and he is particularly curious.

He knew that the completion of such a treatment could mean that tens of thousands, if not hundreds of thousands, of patients would be treated for their diseases. The point is that this kind of "trial" does not consume much time in surgical training.

What is consumed is only the test subject.

Under direct vision, Zheng Ren began to perform radiofrequency ablation on the initial segment of the renal sympathetic nerve of the subject.

The frequency of radiofrequency ablation of tumor tissue is generally around 460k Hz. Cardiac radiofrequency ablation, depending on the patient's own condition and condition, the frequency of radiofrequency is generally about 200KHz - 750KHz.

The frequency taken by the Mayo Clinic is 510KHz, which cannot be said to be a mistake.

Zheng Ren estimates that this is not the first patient to undergo radiofrequency ablation of the kidney, and the frequency used is theoretical.

But it is precisely this rationale that is problematic.

He guessed that if the operation was successful, this frequency would be smaller than 510KHz.

So Zheng Ren began to experiment, constantly changing the frequency of various radio frequencies to achieve his own goals.

Finally, when the RF frequency reaches 185KHz, the effect is the most ideal.

That's more than twice as much as the Mayo Clinic study. And this frequency has exceeded the frequency of normal medical radio frequency, which appears to be slightly lower.

Nevertheless, this is a fact, the result of an objective test.

Although this experiment is meaningless to Zheng Ren now, he always wonders why.

Moreover, Zheng Ren only found out how to safely use radiofrequency to "cut off" the renal sympathetic nerve, but he didn't know how the renal sympathetic nerve in front of him was melted by the high-frequency radiofrequency needle and solidified by the renal sympathetic nerve reintegrated with the renal artery.

If you study this carefully, I am afraid that one year of surgical training time will not be enough.

After Zheng Ren got the answer he wanted, he came out of the system operating room.

"So be it. Zheng Ren read all the medical records and then said.

"Surgery?" Su Yun asked.

"Hmm. Zheng Ren said, "There is a high probability that surgery can solve the problem, so let's do it." ”

Professor Danilo Acosta looked at Zheng Ren like an idiot, and in his opinion, this kind of surgery, which was done almost blindfolded, could not succeed at all.

The young Chinese doctor in front of him will only serve as a scapegoat for the failure of the experiment.