Delirium in Old Age
Conditions
Keywords
dexmedetomidine
Brief summary
To observe the effect of intraoperative dexmedetomidine on the incidence of postoperative delirium, postoperative analgesic drug requirements and pain scores in elderly patients undergoing major abdominal surgery.
Detailed description
This study is a multicenter, randomized, double-blind, placebo-controlled trial. Three hundred patients undergoing elective major abdominal surgery were randomized to the intervention and control groups. Patients in the intervention group were given a loading dose of 0.6 μg/kg of dexmedetomidine by intravenous infusion within 10 minutes after intubation, followed by a continuous infusion at a rate of 0.4 μg/kg/h until 30 min before the end of the procedure; patients in the control group were given an equal volume of saline. Data were collected at 1-5 days and 1 month postoperative follow-up.
Interventions
OTHERsaline
Patients in the experimental group were given a loading dose of 0.6 μg/kg of saline intravenously after 10 minutes of intubation, followed by a continuous infusion at a rate of 0.4 μg/kg/h until 30 min before the end of the surgery.continuous infusion at a rate of 0.4 μg/kg/h until 30 min before the end of the surgery.
DRUGDexmedetomidine
Patients in the experimental group were given a loading dose of 0.6 μg/kg of dexmedetomidine intravenously after 10 minutes of intubation, followed by a continuous infusion at a rate of 0.4 μg/kg/h until 30 min before the end of the surgery.
Sponsors
Beijing Tiantan Hospital
Chinese PLA General Hospital
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)
Eligibility
Sex/Gender
ALL
Age
65 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Patients over 65 years old * Patients undergoing elective major abdominal surgery * Written informed consent was obtained
Exclusion criteria
* Patients with severe preoperative cognitive impairment (MMSE ≤ 20) who are unable to undergo a follow-up evaluation. * Patients with history of psychiatric or neurological disorders. * Patients with body mass index ≤ 18 or ≥ 30 * Patients with severe bradycardia (heart rate less than 40 beats per minute) * Patients with pathological sinus node syndrome or grade 2 or greater AV block * Patients with severe hepatic or renal insufficiency. * Patients with severe hypertension (systolic blood pressure ≥ 180 mmHg or diastolic blood pressure ≥ 110 mmHg)
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Incidence of postoperative delirium | Participants will be followed for the duration of hospital stay, an expected average of 5 days | Participants will be followed for the duration of hospital stay, an expected average of 5 days.Evaluations are conducted twice a day. |
Countries
China
Outcome results
None listed