Dexmedetomidine: In Dex group, dexmedetomidine will continue to be used during and after surgery, with a infusion of 0.4ug/kg/ h from anesthesia induction to dural closure, and then 0.08ug/kg/ h to 48 hours postoperatively.In placebo group, equivalent normal saline will be injected during operation, and the intravenous analgesia pump will not contain dexmedetomidine after operation
Study summary
Neurosurgery is a risk factor for delirium. Dexmedetomidine might reduce delirium by reducing neuroinflammation, improving postoperative analgesia and sleep quality. The the primary hypothesis is that perioperative administration of dexmedetomidine can reduce the incidence of postoperative delirium
Eligibility
Sex
ALL
Min age
18 Years
Max age
—
Healthy volunteers
No
Inclusion Criteria:
* Patients with temporal glioma scheduled for a elective craniotomy
* Age ≥18 years
* Obtain written informed consent.
Exclusion Criteria:
* Patients with severe preoperative cognitive impairment
* History of traumatic brain injury or previous neurosurgery
* History of psychotropic medications
* Allergy to dexmedetomidine
* Pregnant or lactating women
* History of obstructive sleep apnoea syndrome
* Severe bradycardia(heart rate \<40 beats/min), sick sinus syndrome or second-to-third degree atrioventricular block
* Severe hepatic dysfunction
* Severe renal dysfunction
Primary outcome measure(s)
the incidence of delirium postoperatively — the postoperative 5 days Using the Confusion Assessment Method for Intensive Care Unit (CAM-ICU) for critical care patients, or the 3-min Diagnostic interview for Confusion Assessment Method (3D-CAM) for ward assessment,combined with the Richmond Agitation Sedation Scale (RASS). Delirium assessments will be only conducted in patients with RASS sedation score exceeding -4.The CAM-ICU and the 3D-CAM describes four main characteristics of delirium: acute altered mental state ,fluctuating level of consciousness, inattention, and confusion of thought. If both the first and second features are present, and both the third or fourth features are present, the patient is diagnosed with postoperative delirium.
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
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