The technical principle of iabp is reflected here. It uses purely physical effects to allow the balloon to inject helium to expand during diastole of the patient's heart, blocking 90 to 95% of the arterial lumen. This can reduce blood pressure in the main artery. Arterial roots, increase diastolic blood pressure and coronary perfusion flow, increase myocardial blood supply and increase cardiac activity. Before the heart contracts, the air sac is deflated, the aortic pressure decreases, the afterload of the heart decreases, the resistance to cardiac ejection decreases, and the myocardial oxygen consumption decreases.
The above-mentioned effects that can be achieved together give iabp technology unique and incomparable advantages over other treatment methods.
Drug treatment requires a combination of several drugs, which has many side effects and may not necessarily be effective. Surgical left ventricular assist devices have stricter anticoagulation requirements for patients than iabp, and the risks are higher. The various advantages of iabp are destined to make iabp the first choice for patients who are eligible for iabp after the advent of iabp technology.
All new technologies are great, but any medical operation has its technical difficulties, and iabp is no exception. Based on the above-mentioned principle of action of iabp, the balloon must have the best physical effect in human blood vessels. Just like the balloon for hemostasis, the volume after expansion of the balloon needs to reach the target set by the doctor for the patient, otherwise the effect will be greatly reduced. .
Selecting a balloon catheter model appropriate for the size of the patient's arteries becomes critical. There are ones for adults only, and there are ones for children. There is a slight deviation in the blood vessel diameter values between women and men. Factors such as the patient's fatness, thinness, and blood lipid level will also show different blood vessel diameters.
To put it this way, the models of medical equipment used by adults cannot tell the slight difference in thickness. What's more, the four conventional models of iabp catheters have a small difference in thickness but a large difference in length, which shows that doctors should choose the model according to the patient's height. This is because in addition to the thickness of the balloon catheter, the balloon catheter is placed near the opening of the left subclavian artery at the top of the human blood vessel, and the tail end is to go to the renal artery under the diaphragm. It takes a balloon of such a large volume to affect the blood flow of the human body's aorta.
It can only be said that when there are many subtle gaps that affect the treatment effect, they can only be made up for by the doctor’s experience and operation techniques.
After the machine is connected, the surgeon observes the patient's blood pressure, heart rate, and other conditions on site after getting on the machine. Based on these values, Dr. Chen makes fine adjustments. After several debuggings, I always felt that something was not quite satisfactory.
Time passed by, and the night became so dark that it was hard to see.
It's ten o'clock at night.
After a day's work, there is no difference between the leader and his subordinates, with tiredness on their faces.
Sitting on the sofa chair in the dean's office, Zhang Huayao yawned greatly. On the coffee table in front of him, the dean's secretary brought him a cup of coffee to relieve his difficulty.
"No more." Zhang Huayao said. Dean Liang had eaten too much for dinner tonight, and he was a little too full after drinking coffee.
After hearing what he said, the secretary went to change a cup of Longjing tea for him and served it to him.
There was no time for tea, so Zhang Huayao flipped through the medical records in front of him.
Shen Youhuan guessed that he was captured by Dean Liang to help his compatriots conduct cross-ocean consultations and study patient records.
Whose medical records? If the dean can personally invite experts from the hospital to come to the office to look at the medical records, it must be the medical records of a wealthy and noble person.
－－－－－－Digression－－－－－
Thank you for your support! ! ! Good night, dears~
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