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Effect of Superior Laryngeal Nerve Block guided by Ultrasound for tracheoscopy: A randomized controlled trial

Effect of Superior Laryngeal nerve Block guided by Ultrasound for tracheoscopy: A randomized controlled trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR1900021434
Enrollment
Unknown
Registered
2019-02-21
Start date
2019-03-01
Completion date
Unknown
Last updated
2019-03-11

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

Conditions

Effect of Superior Laryngeal Nerve Block guided by Ultrasound for tracheoscopy

Interventions

L?:Superior laryngeal nerve block + cricothyroid puncture
C?:cricothyroid puncture

Sponsors

Fourth Hosiptal of Hebei Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 75 Years

Inclusion criteria

Inclusion criteria: ASA ?-?; Patients undergoing painless tracheoscopy; Aged 18-75 years; Agreed to participate in the study and signed informed consent.

Exclusion criteria

Exclusion criteria: Infection at puncture site; Allergy to test medication; Pregnant and lactating women; Severe hepatic and renal failure or heart failure (NYHA = III); Body mass index > 34 kg / m2; FEV 1 < 0.8 L.

Design outcomes

Primary

MeasureTime frame
Incidence of hypoxemia (SpO2 < 92%);Cough score;—

Secondary

MeasureTime frame
Circulatory system adverse events;Vocal cord movement;Operation time;—

Countries

China

Contacts

Public ContactFu Jianfeng

Fourth Hosiptal of Hebei Medical University

fffjf2008@sohu.com+86 18531116090

Outcome results

None listed

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