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 subsequent email communications, the Mayo Clinic research team also admitted this, but only sent the surgical procedure for the stent surgery, but the removal process and the patient's condition were missing.
This is the first time Zheng Ren has seen this section.
The operation was to remove the stent from the renal artery stenosis. The whole operation process was not interesting. 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 became unstable, and 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. Vasopressor and antihypertensive drugs were used in turn, and the patient's condition was finally restored to the preoperative level after 5 days.
It’s just that the blood pressure before the operation was extremely high. After struggling for so long, the operation could be said to have failed when it returned to the pre-operative state.
This is probably why the research team kept it secret, Zheng Ren guessed.
"Boss, I don't think there is anything wrong with this pile of stents." Professor Rudolf Wagner said.
"Well, I guess it's because radiofrequency ablation has caused abnormal physiological structural changes in the renal arteries and renal sympathetic nerves that this situation occurs." Zheng Ren said: "If you insert a stent and compress the renal sympathetic nerves for a long time, it will definitely cause Something went wrong.”
The professor was stunned.
Where does this judgment of fusion come from? He rubbed his eyes and looked at the imaging examination carefully. He could only see the convergence of fibrous cords, but could not determine the fusion of the renal sympathetic nerve and the renal artery.
However, Professor Rudolf Wagner was used to following Zheng Ren's diagnosis. He did not continue to speak, but followed Zheng Ren as he watched.
Professor Danilo Acosta ran out to make a phone call when Zheng Ren started reading the information.
It was nine o'clock to start work here, and he was not sure whether the Chinese doctor would perform surgery early in the morning.
Moreover, there was still some related work that needed to be done before the operation. Danilo really didn't like Zheng Ren. It seemed that all the troubles were caused and brought about by Zheng Ren.
Zheng Ren watched the movie and had a complete understanding of the condition.
Because he has done dissection work in the system operating room, Zheng Ren has 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 Mayo Clinic's initial percutaneous renal sympathetic nerve radiofrequency ablation surgery was almost textbook perfection, accurate and delicate.
But this kind of accuracy and delicacy is only in the conventional sense. Zheng Ren suddenly felt something in his heart and entered the system space.
Click on the surgical training time, the system operating room rises from the ground, and Zheng Ren starts the operation.
Zheng Ren needs surgery, not surgery, but radiofrequency ablation.
Of course, this was not a normal radiofrequency ablation procedure. Zheng Ren directly regarded the experimental subject as an anatomy teacher, began to dissect, and performed radiofrequency ablation surgery under direct vision.
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 change in the concentration of ions changes back and forth in positive and negative half cycles with the direction of the current.
Under high-frequency oscillation, ions rub against each other and collide with other particles to produce biothermal effects.
Radiofrequency ablation was first used in patients with arrhythmias. Later, it was discovered that tumors dissipate heat poorly, causing the temperature of tumor tissue to be higher than that of adjacent normal tissue. In addition, cancer cells are sensitive to high heat. High heat can kill cancer cells without causing side effects.
Therefore, radiofrequency ablation is also used to treat tumors, and the effect is equivalent to surgical resection.
Zheng Ren’s third interventional surgery for liver cancer on Zheng Yunxia at Haicheng City No. 1 Hospital used radiofrequency ablation.
The operation was successful. Zheng Yunxia has not found any signs of recurrence of the tumor tissue after the operation. The effect is almost the same as that of surgical resection.
During the radiofrequency ablation of renal sympathetic nerves to treat nephrogenic hypertension, such consequences occurred. It must be that the frequency of radiofrequency ablation was wrong, or so Zheng Ren guessed.
Just give it a try and you’ll find out.
Anyway, the operation on Zou Jiahua was completed, and there was still a lot of time for surgical training.
In fact, Zheng Ren is very curious about unknown things, especially medical unknowns.
He knows that completing such a treatment may mean that the diseases of tens of thousands or hundreds of thousands of patients are cured. The key is that this kind of "experiment" does not consume much surgical training time.
What is consumed is just the experimental body.
Under direct vision, Zheng Ren began to perform radiofrequency ablation on the initial segment of the renal sympathetic nerve of the experimental subject.
The frequency of radiofrequency ablation of tumor tissue is generally around 460kHz. For cardiac radiofrequency ablation, the frequency of radiofrequency is generally around 200khz - 750khz, depending on the patient's condition and condition.
The frequency taken by the Mayo Clinic is 510khz, which cannot be said to be wrong.
Zheng Ren estimates that this is not the first patient to undergo renal radiofrequency ablation. The frequency used has a theoretical basis.
But it is precisely this theoretical basis that has problems.
He guessed that if the operation was successful, the frequency should be lower than 510khz.
So Zheng Ren began to experiment, constantly changing the frequencies of various radio frequencies to achieve his own goals.
When the final RF frequency reaches 185khz, the effect is optimal.
Compared with the frequency of the Mayo Clinic research group, this frequency is nearly twice as different. Moreover, the frequency has exceeded the frequency of normal medical radio frequency and appears to be slightly lower.
Even so, this is a fact and the result of objective experiments.
Although this experiment is meaningless to Zheng Ren now, he always wants to know why.
Moreover, Zheng Ren only found out how to safely "sever" the renal sympathetic nerves using radio frequency, but he did not know how the renal sympathetic nerves of the patient in front of him, which had been melted and solidified by high-frequency radio frequency needles, re-fused with the renal arteries.
If we study this carefully, one year of surgical training may not be enough.
After Zheng Ren got the answer he wanted, he came out of the system operating room.
"That's it." Zheng Ren said after reading all the medical records.
"Surgery?" Su Yun asked.
"Yes." Zheng Ren said, "Surgery will most likely solve the problem, so let's do it."
Professor Danilo Acosta looked at Zheng Ren as if he were an idiot. In his opinion, this kind of surgical operation was almost done blindfolded and had no chance of success.
The young Chinese doctor in front of him would only serve as a scapegoat for the failure of the experiment.