change of propofol EC50 in patients who take several general anesthesia during the past six months

Status

Recruiting

Phases

Phase 4

Study type

Observational

Source

ChiCTR

Registry ID

ChiCTR2100048108

Enrollment

Unknown

Registered

2021-07-01

Start date

2020-06-01

Completion date

Unknown

Last updated

2022-03-07

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

Conditions

Tracheal stenosis

Interventions

Single general anesthesia group

Multiple general anesthesia group:no intervention

Eligibility

Sex/Gender

All

Age

18 Years to 75 Years

Inclusion criteria

Inclusion criteria: Patients under general anesthesia who need multiple operations were planned to undergo tracheoscopic electrotomy, dilatation, cryotherapy and argon therapy; Aged 25 to 60 years old male or female, body mass index 18 to 25 kg/m2, ASA grade I ~ II.

Exclusion criteria

Exclusion criteria: Previous history of neurosurgery, history of mental retardation or mental illness, history of heart disease, severe respiratory and circulatory insufficiency, renal failure, acute liver disease, visual and hearing impairments, history of long-term and specific medication, and communication difficulties

Design outcomes

Primary

Measure	Time frame
Propofol EC50;	—

Countries

China

Contacts

Public ContactLiu Shengqun

He'nan Provincial People's Hospital

402711536@qq.com+86 13526882118

Outcome results

None listed

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