Chapter 1664 【1664】Technology Reproduction
Looking at the actual machine, this artificial heart-lung machine seems to be several large bottles strung together, with a pump-like power device inside, which can pump liquid back and forth. It is a high-end medical machine, and it must be connected to a computer and a display screen to monitor various operating parameters and data.
The artificial heart-lung machine is a bit bigger, with a few more drainage tubes and blood reservoirs, which can help doctors fully drain the blood from the patient's left atrium during the operation. ECMO does not have this thing, which will increase the pressure of the patient's left heart and cause problems such as left ventricle expansion.
ECMO also has its advantages. It is a one-way closed loop with fewer drainage tubes, which can reduce the contact of gas and blood. Since extracorporeal circulation must use heparin, the amount of heparin used is guided by the activated coagulation time (ACT). Compared with artificial heart-lung machines, ECMO requires shorter ACT and uses less heparin. It is safer not to use it during surgery as a rescue for critically ill patients.
Now it is in a surgical operation, using an artificial heart-lung machine. Artificial heart-lung machines include bubble oxygenators and membrane oxygenators. Membrane oxygenators were invented late, and compared with bubbling oxygenators, they have less damage to the blood, and the overall use effect is much better than that of bubbling oxygenators. In some hospitals, the bubble type purchased in the early years can be used even if it cannot be thrown away. There are not many new membrane machines purchased and not enough for patients. In the end, it must be the bubbling method, and the number of cases used on patients at this stage is more. We can only wait for the outdated machines to be phased out gradually. This process is the same as updating equipment in a factory, and a process is required.
Guozhi is relatively good, with more membrane machines than bubble machines. Today, patients use the membrane type in surgery.
While the teacher was operating, Xie Wanying was studying and observing. Teacher Pang occasionally said a few words. As a clinical teacher, he may say few words, but every sentence is the main point, which needs to be engraved in the students' hearts.
According to Teacher Pang, the patient should first undergo general anesthesia and one-lung ventilation. During this anesthesia, the anesthesiologist can be seen inserting an esophageal ultrasound probe into the patient. It can be seen that Guozhi, a specialized hospital, seems to have tried a little bit on the application of esophageal ultrasound probes in extracardiac thoracoscopic surgery.
In the control room, a group of cardiologists from the National Association of China looked at this scene and thought that their department was still using this device to assist surgery. The reason why Fu Xinheng quickly accepted Xie's opinion was that the application of esophageal ultrasound in surgery had been reported in foreign medical circles, but it was an attempt and had not been widely promoted. If domestic doctors want to use it, they must take it step by step before it is applied on a large scale. Starting from ordinary cases, there is nothing wrong with being cautious.
Also, where is Xie used? It is used in non-cardiac surgery, such a thing has not been reported in foreign literature. Therefore, all the surgeons at the exchange meeting were stunned.
As if remembering this incident, Zhang Huayao pinched his chin with his fingers again. On the day of the exchange meeting, he sneaked in after receiving the news, and when he arrived, he happened to see the scene of the operation that amazed everyone. For this reason, he looked at the surprised expression of his old mother, Mr. Lu, and was also deeply surprised by himself.
When did a doctor in China perform such avant-garde surgery? As a heart surgeon, he knows better than anyone else how this thing is used in surgery.
At present, esophageal ultrasound is only used outside the heart in surgical operations. How can it be used outside the liver and gallbladder by Mr. Xie?