Due to many advanced dical devices being imported, the buttons on the machines are all in English, and doctors can identify them by the familiar automation prefix "AUTO".
Treating a patient with machines is far more difficult than using a washing machine at ho. Sotis, even a washing machine cannot run fully automatically, and we need to adjust paraters to wash special garnts. dical machines are similar; at this ti, doctors will start the "OPENATOR" mode, manually operating the machine. Just like automated machines adjust paraters, doctors use their brains to interpret waveform values to choose the trigger mode and adjust the balloon inflation and deflation tis and other operations.
Similarly, doctors observe from top to bottom, starting with the electrocardiogram. So patients have arrhythmias, such as sinus tachycardia and atrial fibrillation, which affect the counterpulsation effect, the most direct impact being an improper counterpulsation ratio. Don’t worry when this occurs; rely adjusting the appropriate counterpulsation ratio and balloon inflation and deflation tis can correct it.
Next, look at the arterial pressure in red waves, which is usually the key graph that surgical doctors need to observe.
Like the ECG, the pressure graph loaded with balloon pressure has a cyclical change in groups. If this periodic change within the graph appears prematurely overlapped or separated like the ECG, it can be basically concluded as an issue of early or late inflation and deflation. At this point, the doctor only needs to adjust the balloon inflation and deflation ti on the machine.
The above issues are relatively easy to judge and solve. The experienced Doctor Chen has systematically ruled them out, and thus inford the senior doctor that he has adjusted the machine paraters.
The challenging part is when problems persist after the machine paraters have been adjusted. The pressure value after balloon inflation is not reached. If non-machine parater factors contribute, other reasons affecting the counterpulsation effect cannot be resolved simply by adjusting the machine.
The doctor needs to re-examine the balloon catheter connected to the body.
Adjusting the catheter is not as simple as pressing buttons on the machine; it’s a risky operation. No one wants to move a tube that’s already placed inside the patient to avoid sudden major bleeding. In a fully heparinized state, moving the catheter recklessly might indeed cause bleeding.
Any surgeon contemplating this would have a headache, hoping fervently it isn’t necessary.
Shim Youhuan likewise hopes not, but the problem has occurred, and one must face reality. He tells Doctor Chen, "Try retracting or extending the balloon tip slightly."
A mispositioned balloon can prevent the desired inflation pressure from being reached, often affecting the counterpulsation effect. Now, looking at the arterial pressure waveform, this factor is likely the culprit.
"I’ve tried, but there wasn’t much effect," Doctor Chen answers, silently praying it’s not the issue.
"If it still doesn’t work, we might need to try inserting a slightly larger or smaller catheter," Shim Youhuan encourages, suddenly thinking of sothing and turns to Junior Xie Wanying, asking, "Do you have any ideas?"
Being asked by Senior Brother Shim, Xie Wanying, who was also observing the surgery, voiced her opinion: "As Senior Brother Shim suggested, extending the balloon tip might help."
"I said I’ve tried that," Doctor Chen emphasizes repeatedly.
"Don’t be too anxious," Xie Wanying says.
Doctor Chen was montarily stunned: was a dical student advising him not to be too anxious? Did he hear it wrong?
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