It must be head-on.

If she didn't dare to join the fight, Song Xuelin would definitely look at them with that look: You guys are the same class as Xie?

He raised his head and faced the monitor screen, locked the area where the main surgeon was scandal again, saying: "From the current picture, the direction of cerebrospinal fluid in this place is a sign of a slow vortex and spinning in place. It means that the flow rate below is not smooth. The trumpet-shaped outlet of the mesencephalic hydrotube in Yingying actually refers to the meaning of expanding the outlet end of the mesencephalic hydrotube after the fourth ventricle is expanded."

"It turned out that it wasn't the midbrain hydrotube that originally grew into a trumpet-shaped shape, is that right?" Sun Yubo, who is not a neurosurgeon, asked. When he first heard it, he thought it was the cause of this, but now it sounds not.

The main reason is that his fellow villager Huang Daxia didn't come out immediately to explain whether it was.

In terms of anatomy, looking at the anatomical map, you will find that the midbrain water conduit is a thin, long and slightly tortuous tube, unlike the lateral ventricle to the third ventricle that only passes through the interventricular hole. This structure makes it difficult for the hard mirror we mentioned before to pass through, and we can only use a soft mirror like an earthworm or a caterpillar and slowly twist it.

As Student Pan said, the fourth ventricle connected to the thin tube is too much water-abundant and overflows upwards, pushing the lower end of the tube to widen, and the outlet of the tube that is stretched naturally like a trumpet.

Is there something in this situation blocked near the outlet of the mesencephalic catheter in the fourth ventricle? I have said before that this case did not scan the space-occupying obstruction, and it has been determined to be a traffic obstruction, which is more likely to be a problem with the subarachnoid cavity of the brain below the fourth ventricle.

The subarachnoid cavity of the brain is the cavity between the leptomy and the arachnoid, so it is very confusing to say that it is a cavity space similar to the oral cavity, but it is not. To be more precise, it is a well-connected water network covering canals and pools. The canals are covered with sulcus and splits of the brain. The larger place is called a pool. It is usually called a brain pool.

This water network receives cerebrospinal fluid from the fourth ventricle, allowing cerebrospinal fluid to spread throughout the brain. At the same time, the subarachnoid cavity of the brain is connected to the subarachnoid cavity, allowing cerebrospinal fluid to continue to flow to the spinal cord. The reason why we talked about the lumbar anesthesia puncture to the subarachnoid cavity is from here.

ETV surgery is to stomp the bottom of the third ventricle, that is, to dig a hole to allow cerebrospinal fluid to flow directly into the cerebrospinal cirrhosis to solve the problem of cerebrospinal fluid stagnation.

From the above, we can know that the focus of this operation should be on the cause of proximal ventricle obstruction. It means that if hydrocephalus caused by poor flow from the fourth ventricle to the anterior cylindrical cistern, it does not necessarily have to be a place-occupying obstruction. For example, some other factors make the subarachnoid cavity narrow. At this time, the diversion of the hole can allow the cerebrospinal fluid from the ventricle to flow directly around the obstruction section to the cerebrospinal cisternum to continue circulation, which is of course effective.

Anyone who specializes in neurosurgeons knows this.

Huang Zhilei couldn't not know it, so he glanced at Dr. Sun Yubo, a non-neurosurgery fellow: If you don't understand, don't talk nonsense. My failure to come out to explain does not mean that I don't understand such a superficial knowledge point.

What is the problem? How do you judge that there is a problem with the subarachnoid cavity in the near ventricular obstruction rather than other places?
Chapter completed!