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A study for pain differentiation and gene polymorphism in perioperative period of elderly patients with lower extremity surgery

A study for pain differentiation and gene polymorphism in perioperative period of elderly patients with lower extremity surgery

Status
Active, not recruiting
Phases
Phase 1
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2000031655
Enrollment
Unknown
Registered
2020-04-06
Start date
2020-08-01
Completion date
Unknown
Last updated
2020-11-02

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

Conditions

Pain differentiation and genetic variations

Interventions

Without pain after operation:NONE
With obvious pain after operation:NONE

Sponsors

Department of Anesthesiology, Drum Tower Hospital Affiliated to Nanjing University Medical School
Lead Sponsor

Eligibility

Sex/Gender
All
Age
65 Years to No maximum

Inclusion criteria

Inclusion criteria: (1) Aged >= 65; (2) Hip replacement patients; (3) Estmated operation duration will be 60 minutes or more; (4) Subjects agreed to participate in the study and signed informed consent.

Exclusion criteria

Exclusion criteria: (1) Gene deficiency disease; (2) History of opioid abuse; (3) Medication (such as carbamazepine, quinidine, ketoconazole, etc.)used within 4 weeks before opration; (4) Patients with peripheral neuropathy and mental history, chronic pain and long term history of opioid use; (5)Poor condition of the body, affecting pain assessment; (6) Patients who do not cooprtate or cannot comunicate.

Design outcomes

Primary

MeasureTime frame
Single nucleotide polymorphism screening;

Countries

China

Contacts

Public ContactZhengliang Ma

Department of Anesthesiology, Drum Tower Hospital, Medical School of Nanjing University

13611586781@163.com+86 025-83106666

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 9, 2026