Why is blood pressure high after craniotomy

High blood pressure after craniotomy is generally caused by emotional tension, increased intracranial pressure, intracranial rebleeding and other reasons, the specific analysis is as follows:

1. Emotional tension

If the patient is in a state of tension after surgery, it will lead to increased sympathetic excitation and secretion of catecholamine, resulting in high blood pressure.

2. Increased intracranial pressure

If the patient has increased intracranial pressure after surgery, it will lead to reduced cerebral blood flow perfusion, causing ischemia and hypoxia, but in order to maintain normal blood flow, the body will make systemic vasoconstriction cause high blood pressure.

3. Intracranial rebleeding

If the patient has intracranial rebleeding after surgery, if it is not treated in time, it will cause hematoma and affect the blood flow of brain tissue, resulting in high blood pressure.