There are many reasons for reperfusion injury, but there are only a few ways to control it during surgery.

Pre-dilation through a small balloon is one of the methods.

This is also a commonly used clinical method to prevent reperfusion injury.

Commonly used, it means that everyone is familiar with this operation method, but the difficulty of the surgery done by Yuntian is very rare.

If a simple small balloon dilation could solve such a difficult operation, then, before the operation, there would not be so many people who came out of their way to stop Yuntian!

Therefore, after seeing Yuntian pause, everyone was a little surprised when he put in the small balloon!

Is it just a small balloon?

But then, they no longer doubted Yuntian's choice.

The small balloon quickly reached the occlusion site, and Yuntian began to control the small balloon for pre-dilation.

The small balloon seemed to be very flexible in Yuntian's hands.

The speed of expansion is very stable, like a flexible small fish, as the small balloon approaches the occluded part little by little, the originally occluded part is gradually stretched open by the small balloon.

However, it can be seen that when the small balloon passes by, the expansion range is not large, and with the operation of Yuntian, the occluded part seems to be opened by the small balloon A small channel.

A very fine stream of blood can be seen distally!

Can a small balloon still be operated like this?

Everyone was a little surprised!

But what's the point of just holding it out a little bit?

This thought popped up in everyone's minds.

But Yun Tian only stretched out a line of completely occluded parts, and then withdrew the small balloon.

That's it?

The crowd didn't understand!

But Yuntian didn't explain, but stopped what he was doing and stared at the ECG monitor tightly.

Yuntian: The patient's blood pressure was 110/70 mmHg and his heart rate was 70 beats per minute at the time of the operation.

However, at this time, after Yun Tian was pre-dilated with a small balloon, when a very fine blood flow was restored distally, the patient's blood pressure suddenly dropped to 90/50mmHg, and the heart rate suddenly increased to 98 beats per minute.

The patient even experienced some degree of agitation.

But this little restlessness is no problem at all for Yuntian.

Yuntian held the operating system, completely fluctuating with the patient's restlessness, so the patient's restlessness did not affect the position of the operating system!

Yun Tian stared at the data on the ECG monitor tightly and did not process it.

Everyone couldn't help but sweat for Yuntian!

Just a very small, if not significant, blood flow is opened, and the patient has a drop in blood pressure and an increase in heart rate.

With such a severe reaction, can the patient persevere?

Everyone was nervous to the extreme!

I can't wait to convey my strong will to the patient and help him get through the difficulty of reperfusion!

If the thrombus is aspirated at one time and the right coronary artery is restored to blood supply, the patient will definitely not be able to accept it!

Although Yuntian's operation at this time is very accurate, just within the range that the patient can bear, but when will this operation be done to open the blood vessels little by little!

This is an emergency operation, where can the patient withstand such a slow toss in the clouds.

Even if it is not an emergency operation, such a slow operation speed avoids perfusion injury, but it also invisibly increases the time and cumbersomeness of the operation.

Nature is undesirable.

However, when the patient's condition was stable, Yuntian began to pre-dilate with a small balloon again.

This time, the small balloon was twice as dilated and distal blood flow increased, but it was still small enough to provide an effective blood supply.

As the occlusion was further cleared, the patient again experienced an increased heart rate and a decrease in blood pressure.

But this time, it's still under control.

And the patient's agitation this time is obviously much shorter than before.

This was followed by the third pre-expansion.

Then came the 4th ......

Each time the patient is agitated, the time is getting shorter and shorter.

The degree of cloud sky pre-expansion is increasing.

Gradually, blood flow in the distal ends improved.

The patient's condition is also extremely stable.

It seems that the pre-expansion works very well.

"I didn't expect the surgery to be able to do this!

In the disposal room, Director Zhang pushed the glasses on the bridge of his nose and said with emotion.

"If you can have such innovation and such operational ability, the cardiology department of 913 will not be in the current situation!"

Director Shao's mouth really has never spared anyone.

In a word, Director Zhang rolled his eyes!

But this is the case, and Zhang Zuying is not the kind of person who is good at sophistry.

can only weakly accept Director Shao's contempt!

Dr. Huayang Shu was also dumbfounded.

Can you still do this?

If you encounter such a patient next time, you can also try it yourself.

It's really a completely new way of doing things.

But

Hua Yang Shu gave up such an idea in an instant.

Yuntian's operation just now looks simple.

But the extent to which the ball can expand each time is carefully calculated

Target.

Therefore, the patient will just appear agitated, but it will not cause perfusion injury.

their current level.

The balloon alone could not be controlled so precisely, and the river beach had to calculate so closely how much the balloon could expand each time.

"Doctor Yun, is there a way to calculate the degree of dilation of your little balloon?"

Although he knew that he couldn't operate it, Dr. Huayang Shu was itching.

I couldn't help but ask Yuntian.

"How do you calculate it?"

Yun Tian obviously didn't understand the meaning of Dr. Huayang Shu's question.

"You don't tell me how much the small balloon dilates each time and how much of a reaction it causes in the patient, you don't have a tight calculation!"

is also a genius, Huayang Shu thinks that he is the one who knows Yuntian best all his life.

At least in the opinion of Dr. Huayang Shu, who is also a genius, no matter what kind of operation, there must be operation methods and control rules.

Well, the more meticulous the method, the more precise the details, the better the surgery will be.

The operation of Yuntian just now is almost refined to the extreme.

Not only is the operation fine, but also the amplitude of the operation and what kind of effect the patient will achieve, there must be a method.

There must be an accurate calculation formula for Yuntian to make such a precise calculation.

So, Dr. Huayang Shu asked very firmly.

"There really isn't a calculation method!"

Yun Tian replied seriously.

"How can you be so skilled and precise without a calculation method? Don't tell me that you are based on experience, how old are you, how many interventional surgeries have you had?

There are only two types of people who can achieve such clarity.

One is to rely on sophisticated calculation methods and formulas to achieve such an effect.

The other kind of person is by feel.

Hundreds of the same surgeries were done, and I naturally felt it on my hands.

The so-called feel is just a quick subconscious calculation method accumulated from hundreds of surgeries.

To achieve such a degree, it is much more difficult to operate than to directly use the calculation method to calculate subjectively.

Dr. Huayang Shu naturally would not think that Yuntian, who had only come into contact with cardiac interventional surgery, could find such a precise feel in such a short period of time.