Nowadays, it is said that the regulating valve with a shunt tube can adjust the pressure, but every time the patient comes to the hospital for adjustment, he needs to be checked again, so that the doctor can more accurately judge the pressure value and readjust it.
On the other hand, if infection occurs accidentally, it is better to put the lower part instead of the upper part.
With this place next to important organs such as the liver, doctors are always worried that one day the catheter will accidentally fall off for unknown reasons. If they rub it against the liver, what will happen?
"Back in 90, she became popular in the circle of surgical experts" [2872] Special precautions
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