Comparison of different ventilation on nerve block combined with general anesthesia using LMA in elderly patients undergoing total knee arthroplasty

Status

Recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2000039543

Enrollment

Unknown

Registered

2020-10-30

Start date

2020-08-20

Completion date

Unknown

Last updated

2021-02-08

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

Conditions

respiration and circulation function

Interventions

spontaneous respiration group:respiration mode

mechanical ventilation group:respiration mode

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: ASA grade I to III, 60 to 75 years old, BMI is 18 to 29 kg/m2, tourniquet duration lasts 60 to 90 min, estimated operation time lasts 60 to 120 min.

Exclusion criteria

Exclusion criteria: Patients with heart disease, respiratory disease and anemia; patients who are not suitable for or unwilling to perform the nerve block.

Design outcomes

Primary

Measure	Time frame
heart rate;mean arterial pressure;arterial partial pressure of oxygen;arterial partial pressure of carbon dioxide;	—

Secondary

Measure	Time frame
positive vasoactive usage rate;	—

Countries

China

Contacts

Public ContactLiHong Zhang

The Second Affiliated Hospital of Fujian Medical University

1100702024zhang@163.com+86 19959953102

Outcome results

None listed

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