Chapter 1021 Experiment

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

However, in the subsequent email communication, the research team of the Mayo Clinic also admitted this, but only sent the operation process of the stent operation in the past, while the removal process and the patient's condition were absent.

This passage was the first time Zheng Ren saw it.

The stent that had narrowed the renal artery was removed during the operation. The whole operation process was nothing spectacular. Zheng Ren mainly looked at the changes in the patient's physical condition after the stent was removed.

After the stent was removed, the patient's blood pressure was unstable, and in order to avoid changes in blood pressure caused by emotional fluctuations, measures such as sedation and ventilator-assisted breathing were adopted.

All kinds of rescue drugs were basically used over and over again. Vasopressors and antihypertensives were used alternately, and finally the patient's condition returned to the preoperative level after 5 days.

It's just that the blood pressure before the operation was extremely high. After so much tossing, it returned to the state before the operation, so the operation can be said to have failed.

This is also the reason why the research team kept secret about it, Zheng Ren guessed.

"Boss, I don't think there is any problem with this pile of brackets." Professor Rudolf Wagner said.

"Well, I guess it should be due to the abnormal physiological structure changes of the renal artery and renal sympathetic nerve caused by radiofrequency ablation." Zheng Ren said: "Going in with the stent and compressing the renal sympathetic nerve for a long time will definitely cause damage. Something went wrong."

The professor was stunned.

Where did this fusion judgment come from? He rubbed his eyes and carefully looked at the imaging examination. He could only see the convergence of fibrous cords, but he could not judge the fusion of the renal sympathetic nerve and the renal artery.

However, Professor Rudolf Wagner was used to following Zheng Ren's diagnosis, so he didn't continue talking, but followed Zheng Ren's view.

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

It's nine o'clock to go to work here, and he's not sure if the Chinese doctor is going to have surgery early in the morning.

Moreover, there is still some related work to be done before the operation. Danilo really doesn't like Zheng Ren, as if all the troubles were created and brought by Zheng Ren.

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

Because he had done dissection work in the system operating room, Zheng Ren had the most comprehensive understanding of the entire condition.

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 radiofrequency ablation of renal sympathetic nerve performed by Mayo Clinic is almost as perfect as a textbook, accurate and delicate.

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

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

Zheng Ren was going to have an operation, not surgery, but radiofrequency ablation.

Of course, it was not a normal radiofrequency ablation. Zheng Ren directly regarded the subject as a general teacher, began to dissect, and performed radiofrequency ablation under direct vision of the naked eye.

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

The human body mainly relies on the movement of ions to conduct current. Under the action of high-frequency alternating current, the direction of ion concentration changes along with the direction of the current, which changes back and forth in positive and negative half cycles.

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

The earliest radiofrequency ablation was applied to patients with arrhythmia. Later, it was found that the poor heat dissipation of the tumor made the temperature of the tumor tissue higher than that of its adjacent normal tissues. In addition, cancer cells are sensitive to high heat, and high heat can kill cancer cells without side effects.

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

The third liver cancer interventional operation that Zheng Ren performed on Zheng Yunxia in the No. 1 Hospital of Haicheng City used radiofrequency ablation.

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

In the radiofrequency ablation of the renal sympathetic nerve to treat nephrogenic hypertension, such a consequence occurred, which must be due to the wrong frequency of radiofrequency ablation, Zheng Ren guessed so.

Just try it out and find out.

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

In fact, Zheng Ren is very curious about unknown things, especially the various unknowns in medical treatment.

He knows that the completion of such a treatment may mean that the diseases of tens of thousands or hundreds of thousands of patients will be treated. The point is that this kind of "experiment" does not consume much surgical training time.

What is consumed is only the experimental body.

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

The frequency of radiofrequency ablation of tumor tissue is generally around 460k Hz. For radiofrequency ablation of the heart, the frequency of radiofrequency is generally around 200KHz - 750KHz according to the patient's own condition and disease condition.

The frequency adopted by the Mayo Clinic is 510KHz, which cannot be said to be wrong.

Zheng Ren reckons that this is not the first patient to undergo radiofrequency ablation of the kidney, and the frequency used is based on theory.

But it is this theoretical basis that is problematic.

He guessed that if the operation is successful, this frequency should be lower than 510KHz.

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

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

Compared with the frequency of the Mayo Clinic research group, this frequency is nearly twice as bad. Moreover, this frequency has exceeded the frequency of normal medical radio frequency, which is slightly lower.

Even so, this is a fact, the result of an objective experiment.

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

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

If this is studied carefully, one year of surgery training time may not be enough.

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

"That's how it is." Zheng Ren said after reading all the medical records.

"Surgery?" Su Yun asked.

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

Professor Danilo Acosta looked at Zheng Ren like an idiot. In his opinion, this kind of surgery was almost done blindfolded, and there was no possibility of success.

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