"Then the fetus doesn't move after anesthesia?" Xie Ning asked.
"The anesthesia hasn't started yet. The fetus will make autonomous movements in the womb, such as turning over, changing positions, etc." Lao He explained, "When the position is satisfied by Boss Zheng, the anesthesiologist will start administering the medicine and fix the fetus in the womb." Location in the palace.”
"How long?"
"Not necessarily." Lao He said, "When doing a four-dimensional color ultrasound on a fetus, sometimes it takes an hour or two to wait for the fetus to turn over. If it never turns over, you have to wait for the next time. There is a certain probability here. , it’s not very clear when the surgery can start.”
Just like what Lao He said, when the B-ultrasound probe is pressed at a certain position, it will no longer move significantly, but will only make small-scale adjustments.
When the doctor in the B-ultrasound room performs a four-dimensional color ultrasound on a pregnant woman, the responsible doctor will wait for a long time and even ask the pregnant woman to move around.
However, most pregnant women and their family members do not understand the meaning, and some even think that doctors who can complete the procedure in just a few strokes are of higher quality.
This makes people laugh and cry.
"This is the heart of the fetus. Now the heart of the fetus is only slightly larger than an almond." Lao He made a metaphor, holding a laser pointer in his right hand and showing Xie Ning the size of an almond with his left hand.
"This is not the surgical space yet. Boss Zheng needs to use the thinnest guide wire to find the position of the aortic valve, and then lower the balloon to open the narrowed position."
With a metaphor, the seemingly boring B-ultrasound images became more three-dimensional and vivid.
The heart is like an almond, and all operations must be done with caution. There is nothing difficult to understand about this.
How difficult the operation is and how high the technical level is required are clearly understood under Lao He's explanation.
There were countless barrages, some asked questions, and some tried to answer them. Lao He took advantage of this time to continue to educate Xie Ning on the difficulties of intrauterine interventional surgery.
As mentioned before, this operation has only been successful in more than 200 cases worldwide, so one can imagine how difficult it is.
Then Lao He began to introduce how many similar fetuses in China need treatment every year.
As this surgery is still in the exploratory stage internationally, many doctors in China do not know its existence at all.
When encountering similar pregnant women and sick children, we can only recommend induction of labor.
Not even a chance to try.
Whether from a medical perspective or a commercial perspective, the development and promotion of this technique is of extremely great significance.
Lao He himself has a profound theoretical foundation, especially a very high level of B-ultrasound. He quotes from classics and speaks clearly and logically.
He himself said that pneumothorax can be seen at B-ultrasound level.
This is a tough line. Many doctors don’t even know that B-ultrasound can detect pneumothorax. Only the highest level tertiary hospitals have this kind of business, and only anesthesiologists like Lao He are proficient in this kind of business that seems to have nothing to do with anesthesia.
Suddenly, the fetus moved in the womb. Lao He glanced at the time and saw that 34′34″ had passed during the live broadcast of the surgery.
He didn't move the whole time, just waiting for this moment.
Fortunately, although it took a long time, this moment has come.
That's what it means to be as quiet as a virgin.
Seeing Boss Zheng holding the B-ultrasound probe in his left hand and making a gesture with his right hand, Lao He felt envious, jealous, and resentful.
This is for the anesthesiologist from the Women's and Children's Hospital to give anesthesia, and the operation is about to officially begin.
After the anesthesia was completed, Su Yun took the B-ultrasound probe, and Zheng Ren began to operate it carefully.
A puncture needle as thin as a hair appears on the screen under ultrasound guidance.
The puncture needle is so thin that if you don't look carefully or have poor eyesight, you will miss it.
It passes through the abdominal wall, uterine wall, amniotic cavity, fetal chest wall and other tissue structures of the pregnant woman, and reaches the fetal left ventricle and fetal heart aortic valve.
"Uncle Ning, this is the focus of the operation." Lao He explained step by step. Seeing Xie Ning's solemn face, she knew that he really understood.
Not a family, don't enter the same door.
Boss Zheng’s father-in-law is not an ordinary person. His explanation of such a difficult surgery was a bit academic, but a layman actually understood it!
Lao He sighed inwardly, and then saw Boss Zheng sending the ball bag in.
A balloon is inserted and expanded to open the narrowed aortic valve.
Seeing the balloon begin to expand, Lao He's heart began to beat faster.
This is the most critical step, he finds relevant reports. Every report only mentions successful cases and fails to mention failed surgeries.
However, some case reports will mention that the balloon expansion step is the most important step. Because there is no relevant standard, there is no fixed rate for the growth of the fetus in the uterus of pregnant women.
Therefore, there is no theoretical basis or data support for how much force should be used and to what extent the balloon should be expanded. I can only perform the operation very idealistically and rely on Boss Zheng's rich experience to complete it.
Lao He stared closely at the LED screen. At this moment, he forgot his task and was immersed in the intense operation process.
B-ultrasound showed that the balloon had reached the position of the fetal stenotic aortic valve.
Then the balloon expanded slightly, and Lao He immediately felt his chest was tight and short of breath, as if a balloon was opening at his aortic valve.
The entire fetal heart is about the size of an almond, and the balloon does not expand quickly, but very slowly, very slowly. If it weren't for the extremely high level of B-ultrasound, Lao He wouldn't have been able to determine what Boss Zheng was doing.
How precise is the operation? !
Lao He sighed inwardly and glanced at the ultrasound data of the fetus.
The aortic valve pressure difference began to decrease from the peak value of 88mmhG. Lao He held the laser pen in his right hand and made a crunching sound.
But he didn't notice.
At this moment, Lao He has transcended time and space, and has become accustomed to "standing" on the side of the patient's head on the operating table, staring at the data from the ventilator and monitor.
And while observing countless numerical values, I kept watching Boss Zheng's operation, thinking about what I should do next to perfectly cooperate with Boss Zheng's surgery.
As the fetal aortic pressure difference narrowed, Lao He saw Boss Zheng continue to expand the balloon.
88mmHg… 83mmHg… 81mmHg…
Surgery is the most dangerous at this moment.
Once uterine contractions occur or the fetus cannot tolerate balloon expansion and the fetal heart stops beating, a laparotomy is necessary.
75mmHg… 64mmHg…
Lao He's heart was in his throat, and Boss Zheng was still expanding his balloon.
What he was thinking in his mind was - if it were him, he would probably stop expanding the balloon at this time and close it when it feels better.
After all, it is the first intrauterine interventional surgery in Asia. Even if the fetus has some minor problems, it can still grow up.
If you wait until you are five years old before undergoing thoracotomy, it will still be too late. Even if the surgery is performed at three years old... two years old... a few months after birth, the risk will be lower than it is now.
But Boss Zheng was unmoved and continued to expand the balloon continuously and steadily at a speed that was difficult to distinguish with the naked eye.
53mmHg… 49mmHg…