The so-called division between left and right atria and ventricles is just roughly divided. It is better to call it a name. From the perspective of the real heart structure, the complete symmetry line between left and right can not be found.
Not only does the internal structure of the heart cause an hindrance to the doctor's scalpel, but the important blood supply network on the surface of the heart are also asymmetrical. Doctors need to avoid important blood supply vessels when cutting.
The fewer cuts, the better, and only one cut is the best. As the old saying goes, doctors need to be responsible for every cut, and only stupid doctors will think about cutting more cuts. Where does this cut take place?
Plan according to the surgical site planned before the operation. If it is just a mitral valve replacement, the mitral valve is located on the left side, and it is OK to directly draw a knife on the left atrium. Today's patients have to use both mitral valve and tricuspid valve.
One left and the other right. According to the experience summarized by previous people, in this case, the conventional surgical approach is to start from the right atrium, incite the right atrium, see the atrium septum and then cut it upward and downward in the center of the oval fossa.
See the mitral valve.
After these parts are incised, the doctor will lift the surrounding edges with sutures to expose the operation field inside.
The preoperative surgical team only considered the mitral valve and tricuspid valve before the operation and did not consider the myocardial hypertrophy. The surgical approach used would not consider the latter, and the exposed surgical field would not take into account the overall picture of the left ventricle. No wonder Dr. Yu wanted to
With such surgical vision, he really couldn't see how to determine the hypertrophy of myocardium in the left ventricle.
The main surgery has rich experience in surgery, and his brain has accumulated more surgical anatomical image database than his younger brains in hospital. Perhaps he can look at a corner of the picture, just like a puzzle piece to judge other parts by brain repair.
As for classmate Xie, as long as he knows her, he knows that she is an alternative person.
The only embarrassment for Student Xie now is how to connect the minds of ordinary people with her special brain so that everyone can understand the sense of the picture in her mind.
After receiving a further question from the chief surgeon, Xie Wanying continued to organize the language: "Please look at it from this perspective, Teacher Du."
Others listened to her as if the navigation system's voice broadcast was heard.
"Here, at this point, the 35-degree angle below the large flap chondrup retained by the patient's original surgery, this muscle is relatively bulging, the thickness of the bulge is not very obvious, but the area is wide, just involving *
*Soft muscle and valve mouth."
This time, it was not just the main surgeon who could see clearly. Dr. Yu didn't need to put his toes on his toes, and he almost let out a scream in his throat: It's visible. It turns out that it is not completely impossible to peek into the entire ventricle in a limited narrow-mouthed field of view.
Yes, use your perspective hard.
How to open and close the mitral valve leaflets? It depends on two muscles, such as mechanical opening and closing mechanism pulling two valve leaves. The muscle is connected to the myocardium of the ventricle and relies on the myocardial rhythm.
Pulse produces motivation. When the patient has problems with the valve and needs to replace it with a prosthetic valve, how to deal with the **small muscle is a technical problem.
Based on the experience of previous generations, the current mitral valve replacement surgery is very mature. Conventional surgery can preserve the sub-mitral valve structure, namely the part of the vertebrae chondrosis. The specific method is generally the original flap connecting the vertebrae chondrosis.
Chapter completed!