Opening the dural barrier is essentially a direct entry.
First, drain the intracranial blood.
Even though this is the simplest step, Director Wu Yongming is still very cautious. When aspirating the intracranial fluid, errors can easily occur, damaging important brain tissue.
Deputy Director Lu's intracranial environment is even more severe, far surpassing ordinary patients in terms of risk.
Not to mention anything else, just the severe aging, hardening, and brittleness of the blood vessels are enough to make the surgeons walk on thin ice.
After draining most of the intracranial blood, the intracranial pressure is basically back to normal. Or rather, slightly below the normal level.
Because the original cranial cavity was closed, now two holes have been opened, equivalent to half-open.
Medically, this is called fenestration.
The surgery is progressing smoothly.
But trouble soon arose.
