Chapter 1787: : Wait for the old man!

The sudden accident stunned Liang Xiong!
Because he found that the 4F caliber catheter has no way to go deep and reach the area where it is tied.
It is definitely not because of the diameter of the brachial artery!
It is because the angle of the blood vessel is abnormal after the malformation, and it is more difficult to adapt the blood vessel to pass through this area!
but……
Liang Xiong's so many years of experience shouldn't predict failure?
How can this happen?
Liang Xiong couldn't help frowning, and murmured: "This angle should be able to pass!"
Zhao Nan on the side couldn't help saying, "We couldn't get through in this place."
"I always feel... because of the lack of compliance of the catheter. When I push the catheter, I feel a kind of resistance. It should be possible to get in according to the blood flow!"
After Liang Xiong heard this, he was stunned.
With his hands still steady, he twitched the catheter back and forth carefully.
Catheter actually needs to be very careful inside the blood vessel, because the most taboo is to damage the blood vessel wall.
Especially those who have vascular disease and heart disease.
What is compliance?
It is the ability of the catheter to adapt to the blood vessel.
However, with the development of polymer science and technology, there are more and more materials with good compliance.
Including the tube in Liang Xiong's hand, it is made of PET, which can be said to be one of the most compliant materials.
But why can't it pass?
Liang Xiong suddenly said: "It's not a matter of materials and conduits!"
Hearing these words, Zhao Nan was stunned: "That is..."
Liang Xiong insisted: "It's the blood vessel problem!"
As soon as he said this, the surroundings suddenly became quiet, and everyone stared up at Liang Xiong with wide-eyed eyes.
No one spoke in the entire operating room!
Liang Xiong is staring straight at the blood vessels.
Finally, he said: "It's not the catheter, but the blood vessels!"
"The blood vessel wall is very rough, which leads to low lubricity. Moreover, when I push, I obviously feel the increase in the driving force and the supporting force. This is very wrong!"
"This blood vessel may have been traumatized!"
After speaking, Liang Xiong asked quickly: "Master, has your arm... ever been hurt?"
The old man couldn't help frowning and thought about it seriously.
suddenly……
He Hui recalled: "It seems to have been injured!"
"But, why is it more than fifty years old? At that time, he was only thirty years old. He was building a house in Jiangxi, and then he fell on his arm by accident!"
"But people didn't pay attention at that time. It was normal to bump and bump on the construction site. I was afraid that the foreman would not want me, so I told the foreman that it was okay, and then I didn't go to the doctor. I recovered by myself!"
"It's been fifty years..."
"If you don't tell me, I have forgotten myself... hey!"
After listening to He Hui's words, everyone was stunned.
They looked at Shou Weixiang in shock, with some emotion, maybe this is the boss!
Even this can be guessed!
In fact, after a blood vessel is damaged, it can indeed heal itself.
But... it's hard to say what the healing will be!
Liang Xiong looked at the patient's blood vessels and couldn't help sighing. This is not a congenital malformation at all.
This is... acquired collateral circulation.
After the brachial artery was injured, the injury was not minor at that time, but fortunately, the collateral circulation was established and did not cause ischemic necrosis.
Because of injury and compression, the brachial artery was changed abruptly!
This situation... is really too rare.
Moreover, this old man has only found out after more than fifty years.
Thinking of this, Liang Xiong felt a little emotional.
but……
No matter how you feel, the biggest problem now is that interventional surgery is definitely not possible.
There is no way for the catheter to pass through this tortuous blood vessel, and there is no way to feed the catheter along the guide wire.
I am worried about damaging the blood vessels, so the catheter used is not very maneuverable, and the longitudinal strength and anti-torsion ability are very low!
This way, the less likely it is to send the catheter in!
How to do it?
Try it!
In the nervous and worried eyes of everyone around.
Liang Xiong began to carefully try again and again!
The manipulation of interventional surgery itself is very high.
And it really depends on a pair of good hands and a grasp of the blood vessels under the image data!
Liang Xiong is very proficient!
but……
The next few efforts did not receive good results.
The operation fell into an embarrassing situation.
How to do?
At this moment, time has passed by one minute and one second, and it was past seven o'clock.
At this time, it has been six hours since Father He Hui became ill.
Liang Xiong began to worry!
At this time, it was not him who was most anxious, but the people in the office staring at the big screen surgery!
Their hearts are panicked!
Some people in the He family are already nervously scolding their mothers.
Although they can't understand the operation, they obviously know that they have encountered a problem!
"It's been six hours!"
"Can you? No, you can tell me earlier!"
"Yes, what if something goes wrong with my father~EbookFREE.me~You...can you bear this responsibility?"
"Hey……"
...
This group of people is really worried.
Father's hands are more precious than their lifeblood!
This is the cash cow of the entire Lao He family.
It is enough for them to buy something from home and sell it for a little bit of money.
...
...
At this time, Zhao Nan was also nervous.
He watched the sweat dripping down from Liang Xiong's head, and he understood the pressure inside him!
But what to do?
Zhao Nan couldn't help asking: "Director Liang...Would you like to...see Academician Shou?"
Suddenly, a word awakened everyone!
Yes indeed!
Find Academician Shou!
Mr. Shou Weixiang will definitely have a way.
Liang Xiong nodded, he had no other way now.
"Well, okay, go call Teacher Shou!" Liang Xiong looked at a graduate student on the side and said directly.
The graduate student quickly got up and went out.
Liang Xiong said to Zhao Nan, "Change the catheter!"
"Let's try again!"
When Zhao Nan heard this, he was taken aback for a moment, and then his eyes lit up: "Change the catheter!? Good idea, what?"
Liang Xiong took a deep breath: "Try PVC?"
Zhao Nan's expression changed as soon as he said this!
"PVC...isn't it right?"
The compliance of PVC catheters is relatively poor, and it is easy to damage blood vessels. In fact, with the development of PTA interventional technology, it has been rarely used.
Moreover, the use of this risk itself is relatively large.
Liang Xiong has no choice!
Zhao Nan couldn't help asking: "Should...Shall we wait?"
Liang Xiong took a deep breath.
Wait……
Can I just wait for the old man?
Hey……
Everyone sighed.