This extracorporeal circulation is not an artificial membrane lung, which is called ECMO and is much more complex to establish.
Only when the heartbeat and breathing have both ceased, will it be considered for use.
What Zhou Can is currently establishing for the patient is a type of life support that can maintain the blood supply to the body's tissues and organs during open-heart surgery.
Its principle is to use a series of special devices to remove venous blood from the body, manually exchange gases, regulate temperature, and filter, then return it to the arterial system inside the body.
This extracorporeal circulation machine is mainly used when the heartbeat is suspended during surgery, or when both heartbeat and breathing need to be stopped.
It was also because Director Xue was overly concerned with the surgery costs for the patients; otherwise, this extracorporeal circulation system should have been established from the beginning to ensure the patient's life safety.
If it wasn't for Zhou Can's operation speed being far faster than others, the consequences would have been difficult to predict.
Zhou Can connected the equipment, and when the patient's nasopharyngeal temperature dropped to around 28°C, he used a blocking clamp below the anonymous artery to block the ascending aorta and injected cold cardioplegia solution at the root of the ascending aorta to stop the heart.
Now, finally, Dr. Guan could stop pressing on the pericardium.
Next, if the surgery takes too long, approximately every 20 minutes, continue retrograde perfusion of cardioplegia through the coronary vein sinus to maintain the heart in a deep hypothermic state.
Merely clamping a venous aneurysm should not take that long.
After successfully establishing the extracorporeal circulation, Zhou Can breathed a sigh of relief.
The patient's life was temporarily secure.
"Director Xue, you can now hurry up and handle that venous aneurysm."
Zhou Can kindly reminded.
She began to hurry to clamp the venous aneurysm.
The extracorporeal circulation machine only simulates some functions of the heart, supplying oxygen and blood to tissues and organs for a short time is fine, but it definitely won't work for long. It would cause damage to the organs.
After establishing the artificial membrane lung, theoretically, it can replace the heart and lung functions of a person for a long period.
Thus, ECMO is more advanced than the extracorporeal circulation machine, and the cost to operate it is also more expensive.
Its circulation system is more complex to establish and requires multiple medical staff to operate simultaneously. And it has to be those proficient in the technology.
Newcomers operating it has a very high probability of accidents.
After securing the patient's life, Director Xue's operation was no longer so nerve-wracking. Her mindset stabilized, and the progress of the clamping surgery went much smoother.
Before long, she had successfully clamped the rather complex cardiac arterial aneurysm.
Cutting off its blood supply, it naturally would no longer pose a threat to the blood vessels.
Some people think that after clamping an arteriosclerotic, it would cause the vessels to narrow, which is completely baseless. As long as the operation is well done, it won't affect the blood flow at all.
After clamping the vascular aneurysm, it is generally necessary to repeatedly test blood flow, to confirm that the arterial aneurysm is completely clamped and the arterial blood flow is unobstructed before closing the chest.
She carefully checked several times to make sure there were no problems, then looked toward Dr. Guan.
"Dr. Guan, the surgery is complete, but we need to check the blood flow to determine the effects of the surgery. Can the heart be allowed to beat again now?"
Dr. Guan began to warm the heart.
Gradually, the heart restored beating, and the blood circulation inside the body slowly resumed.
Fortunately, the patient's ventricular fibrillation had already disappeared, and the heart's beating was normal. The clamping of the arterial aneurysm was also very successful.
After the blood flow test, it was possible to confirm that it was completely clamped.
And it was clear that this section of the arterial blood vessel was unobstructed and not significantly affected.
Everyone breathed a sigh of relief, their hanging hearts finally settling.
Deputy Director Lu felt as if reborn after a catastrophe, his back already soaked with sweat.
After all, the issues with the patient's heart were due to him causing the blockage of the blood flow in the head and arm trunks twice in a short period of time.
"Finally, there are no problems, close the chest cavity!"
Director Xue was also quite alarmed.
She probably won't take such big risks in future surgeries.
All doctors are more or less the same, before anything goes wrong, they always think it will work out, there won't be any problems.
Then, after one or two incidents, they become more cautious.
Their actions also become increasingly cautious.
Deputy Director Lu, alongside a second assistant, together worked to close the patient's chest cavity.
The sawed sternum needed to be re-fixed with steel nails.
Zhou Can watched their operation, quite envious.
But just after an incident, asking Director Xue now for an opportunity to practice closing the chest cavity seemed unlikely.
He was not in a hurry.
This time, he left a very good impression in the minds of Director Xue, Deputy Director Lu, and others, and also showed some of his skills. How could he worry about not getting more training opportunities in the future?
Once the patient's cavity closure was complete and checked for accuracy, anesthesia began.
It would probably take a while to wake up.
The patient could only be moved to the anesthesia recovery room to wait for spontaneous awakening.
Before leaving, Director Xue turned to look at Zhou Can.
"Dr. Zhou, thank you for today! If you are willing, I would like to transfer you to my team tomorrow, and you will be trained by me and the team's doctors."
Director Xue's actions showed a woman's understanding and empathy.
She did not directly take Zhou Can away, which showed respect for Dr. Zhao.
Even though she is a senior doctor, and Dr. Zhao is just a bottom resident doctor, she still gave Dr. Zhao enough respect.
Leaders protecting the dignity of other leaders is not necessarily nepotism, but a sign of cultivation.
Dr. Zhao is currently Zhou Can's superior.
He had imposed a penalty on Zhou Can, and Director Xue could have intervened with just one word, and Dr. Zhao would have obediently complied.