Chapter 2571 【2571】Big Brother Mode

What is the main working principle of a pacemaker?

Send out pulses, stimulate the heart muscle, let the heart muscle contract and relax.

When to pulse from a pacemaker to save a patient's life. According to the different needs of clinical patients, pacemakers have different working modes. The models that are too subdivided will not be described in detail, but only the two general categories are distinguished. One is the asynchronous mode, that is, the pacemaker directly sends a fixed pulse to stimulate the ventricle or new atrium of the heart regardless of how the patient's heart beats, referred to as VOO or AOO mode. What's so good about this pattern?

"During surgery, the asynchronous mode is used to force pacing, which can avoid the patient's ventricular fibrillation caused by the electrosurgical interference with the pacemaker." Xie Wanying said.

Simply put, the electric knife will interfere with the sensory signal system of the pacemaker when it is working, so a fixed mode without sensory signal system operation must be used during the operation.

After the patient returns from the operation, the electric knife is no longer used, and generally speaking, the fixed mode is not used. Because this model has obvious flaws. how to say? Xie Wanying continued: "I came here to have a look just now, and found that it doesn't look like ventricular fibrillation. If it is in the rhythm of inducing ventricular fibrillation. I am afraid that the pacemaker has not been switched from the fixed mode to another mode. After inspection, I found that it is so. Quickly switch the pacemaker back to other working modes. Therefore, her EKG is stable and back."

Once again, the simple explanation is: Xiaohui's condition has improved, and the new heart installed has finally returned to the normal working track. If the fixed mode is used again at this time, the pacemaker cannot perceive the self-beating heart rate of the patient's heart. Once the spontaneous heart rate of the recovered heart exceeds the pacing frequency in the fixed mode of the pacemaker, the two will compete for frequency and eventually induce ventricular arrhythmias. Tachycardia or ventricular fibrillation endangers the patient's life.

Everyone heard this, and finally figured out the ins and outs. Classmate Xie did not and did not need to give the patient chest cardiac compression, but adjusted the pacemaker mode to deal with the alarm crisis.

Dr. Yao turned around and talked about Dr. Han: "Did you switch back to other modes when you came back?"

"It's been transferred." Dr. Han denied it. He and his own people would never commit such negligence.

There are many instruments and channels on the patient's body. It is hard to say whether it will be accidentally pressed on the pacemaker button and something will go wrong. In clinical practice, such things as encountering ghosts are often encountered. The most important thing is to make accurate judgments and troubleshoot problems when a dangerous situation is discovered. This is the responsibility of the doctor on duty.

Dr. Yao's accusation of the interns is actually completely unreasonable from the beginning to the end.

As she said, if she thinks the interns are not suitable for these operations, she should rush into the ward to stop the interns from performing the operations. On the contrary, she herself was negligent for not going to the scene for the first time to carefully judge the patient's condition.

"You said she did something wrong, won't you stop me?" Cao Zhao turned to Dr. Yao, the whirlpool in Mo's eyes was bottomless.

"I, I'm—" Dr. Yao couldn't find an excuse, sweating all the time, he couldn't say that he was inferior to a medical student.

Mu Yong first said to the people in the PICU: "Go and find the director."

The bosses never need to quarrel with others when they talk. After the quarrel is over, the other party suddenly stretches out his hand and smashes the person into a meatloaf.

The students at the scene have been taught, and they have to use the boss model to teach others.

Dr. Yao would never have imagined that one day he would suddenly become a big news in the hospital. What big news? The two pillars of the competition, the two guys who seemed to be at odds with each other, actually joined forces to educate her.

Thank you for your support! ! ! good night dears~