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Safety and efficacy of slow induction of amnesia analgesia with alfentanil combined with dexmedetomidine in elderly patients undergoing orthopedic surgery : a randomized, controlled study

Safety and efficacy of slow induction of amnesia analgesia with alfentanil combined with dexmedetomidine in elderly patients undergoing orthopedic surgery : a randomized, controlled study

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500106437
Enrollment
Unknown
Registered
2025-07-23
Start date
2025-08-01
Completion date
Unknown
Last updated
2025-08-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

lower limb fracture

Interventions

Improved forgetfulness analgesia slow induction group(study group):Atomization inhalation of 1 % tetracaine was used for surface anesthesia
Slow induction of alfentanil combined with dexmedetomidine

Sponsors

Hefei First People's Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
60 Years to No maximum

Inclusion criteria

Inclusion criteria: 1.Patients undergoing elective lower limb fracture, total hip replacement, total knee replacement and closed reduction of femoral neck fracture; 2.Age >= 60 years old, gender unlimited; 3.BMI ranges from 18 to 24kg/m^2; 4.Fully explain the content of clinical trials, voluntarily join the patient to sign informed consent;

Exclusion criteria

Exclusion criteria: 1.Patients with severe hepatic and renal dysfunction and severe pulmonary hypertension, or severe cardiac insufficiency; 2.Allergic to alfentanil, dexmedetomidine and tetracaine; 3.Patients with mental disorders or mental illness; 4.Patients who refuse to use postoperative analgesia; 5.Patients who participated in other treatment in the last 6 months ( when consent was obtained ); 6.Patients judged to lack the ability to consent; 7.Others, the clinical responsible doctor or clinical in charge of the doctor to judge as inappropriate patients.

Design outcomes

Primary

MeasureTime frame
Heart rate;Mean arterial pressure;

Secondary

MeasureTime frame
recovery;adverse events(intraoperative awareness?postoperative cognitive dysfunction? postoperative delirium);Cough reaction during extubation and sore throat after extubation;recovery;The dosage of etomidate, cis-atracurium and alfentanil during operation;Pulse oxygen saturation;Bispectral index;

Countries

China

Contacts

Public ContactYang Heng

Hefei First People's Hospital

yangh999@yeah.net+86 139 6669 5354

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026