Dexmedetomidine Supplemented Intravenous Analgesia in Elderly After Orthopedic Surgery
NCT ID: NCT03629262
Last Updated: 2025-07-31
Study Results
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Basic Information
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COMPLETED
PHASE4
712 participants
INTERVENTIONAL
2018-10-28
2022-12-06
Brief Summary
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
PREVENTION
QUADRUPLE
Study Groups
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Dexmedetomidine group
For patients in the dexmedetomidine group, postoperative analgesia is provided in the form of patient-controlled intravenous analgesia. The formula contains a mixture of sufentanil (1.25 ug/ml) and dexmedetomidine (1.25 ug/ml), diluted with normal saline to a total volume of 160 ml. The analgesic pump is set to administer a background infusion at a rate of 1 ml/h, with a patient-controlled bolus of 2 ml each time and a lockout interval of 8 minutes.
Dexmedetomidine
Patients in this group receive patient-controlled intravenous analgesia for 1-3 days after surgery. The formula is a mixture of dexmedetomidine (1.25 ug/ml) and sufentanil (1.25 ug/ml), diluted with normal saline to 160 ml. 5-HT3 receptor antagonist is added when necessary. The analgesic pump is set to administer a background infusion at a rate of 1 ml/h, with a bolus dose of 2 ml at each time and a lockout interval of 8 minutes.
Control group
For patients in the control group, postoperative analgesia is provided in the form of patient-controlled intravenous analgesia. The formula contains a mixture of placebo and sufentanil (1.25 ug/ml), diluted with normal saline to a total volume of 160 ml. The analgesic pump is set to administer a background infusion at a rate of 1 ml/h, with a patient-controlled bolus of 2 ml each time and a lockout interval of 8 minutes.
Placebo
Patients in this group receive patient-controlled intravenous analgesia for 1-3 days after surgery. The formula is a mixture of placebo and sufentanil (1.25 ug/m), diluted with normal saline to 160 ml. 5-HT3 receptor antagonist is added when necessary. The analgesic pump is set to administer a background infusion at a rate of 1 ml/h, with a bolus dose of 2 ml at each time and a lockout interval of 8 minutes.
Interventions
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Dexmedetomidine
Patients in this group receive patient-controlled intravenous analgesia for 1-3 days after surgery. The formula is a mixture of dexmedetomidine (1.25 ug/ml) and sufentanil (1.25 ug/ml), diluted with normal saline to 160 ml. 5-HT3 receptor antagonist is added when necessary. The analgesic pump is set to administer a background infusion at a rate of 1 ml/h, with a bolus dose of 2 ml at each time and a lockout interval of 8 minutes.
Placebo
Patients in this group receive patient-controlled intravenous analgesia for 1-3 days after surgery. The formula is a mixture of placebo and sufentanil (1.25 ug/m), diluted with normal saline to 160 ml. 5-HT3 receptor antagonist is added when necessary. The analgesic pump is set to administer a background infusion at a rate of 1 ml/h, with a bolus dose of 2 ml at each time and a lockout interval of 8 minutes.
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* Scheduled to undergo total knee/hip replacement surgery, or spinal surgery;
* Planned to use patient-controlled intravenous analgesia (PCIA) after surgery.
Exclusion Criteria
* Preoperative history of schizophrenia, epilepsy, Parkinsonism, or myasthenia gravis;
* Inability to communicate in the preoperative period because of coma, profound dementia or language barrier;
* Preoperative obstructive sleep apnea (diagnosed sleep apnea syndrome or a STOP-Bang score ≥3 combined with a serum bicarbonate ≥28 mmol/L);
* Sick sinus syndrome, severe sinus bradycardia (\< 50 beats per minute), or second-degree or above atrioventricular block without pacemaker;
* Severe hepatic dysfunction (Child-Pugh class C);
* Severe renal dysfunction (requirement of renal replacement therapy before surgery);
* American Society of Anesthesiologists physical status \>IV, or estimated survival ≤24 h.
65 Years
89 Years
ALL
No
Sponsors
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Beijing Jishuitan Hospital
OTHER
Peking University First Hospital
OTHER
Responsible Party
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Dong-Xin Wang
Professor and Chairman, Department of Anesthesiology and Critical Care Medicine
Principal Investigators
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Dong-Xin Wang, MD, PhD
Role: PRINCIPAL_INVESTIGATOR
Peking University First Hospital
Locations
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Peking University First Hospital
Beijing, Beijing Municipality, China
Beijing Jishuitan Hospital
Beijing, Beijing Municipality, China
Countries
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References
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McDaniel M, Brudney C. Postoperative delirium: etiology and management. Curr Opin Crit Care. 2012 Aug;18(4):372-6. doi: 10.1097/MCC.0b013e3283557211.
Mu DL, Wang DX, Li LH, Shan GJ, Li J, Yu QJ, Shi CX. High serum cortisol level is associated with increased risk of delirium after coronary artery bypass graft surgery: a prospective cohort study. Crit Care. 2010;14(6):R238. doi: 10.1186/cc9393. Epub 2010 Dec 30.
Shi CM, Wang DX, Chen KS, Gu XE. Incidence and risk factors of delirium in critically ill patients after non-cardiac surgery. Chin Med J (Engl). 2010 Apr 20;123(8):993-9.
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Other Identifiers
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ChiCTR1800017182
Identifier Type: REGISTRY
Identifier Source: secondary_id
2018-131
Identifier Type: -
Identifier Source: org_study_id
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