A Prospective study of Appropriate DLT Diameter in Japanese Women Based on Ultrasound Measurement of Circumscribed Cartilage Diameter

A Prospective study of Appropriate DLT Diameter in Japanese Women Based on Ultrasound Measurement of Circumscribed Cartilage Diameter - A Prospective study of Appropriate DLT Diameter in Japanese Women Based on Ultrasound Measurement of Circumscribed Cartilage Diameter

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000049484

Enrollment

500

Registered

2022-11-12

Start date

2022-03-01

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

Patients undergoing elective surgery / Patients undergoing thoracic surgery

Interventions

None listed

Eligibility

Sex/Gender

Female

Inclusion criteria

Inclusion criteria: 1. Patients with height less than 160 cm 2.ASA-PS 1-3/elective surgery 3.Patients with written informed consent

Exclusion criteria

Exclusion criteria: 1.emergency surgery 2.Inability to measure cricoid cartilage diameter with ultrasound equipment (neck surgery, neck trauma, Intubated at the time consent is obtained) 3.Patient with airway narrowing (tumor, radiation, tracheostomy) 4.Airway edema(severe hypothyroid) 5.Malformation of airway or larynx 6.Patient with hoarseness or sore throat

Design outcomes

Primary

Measure	Time frame
Appropriate double rumen tube size	—

Secondary

Measure	Time frame
sex(male/female), age, height, weight, body mass index, tracheal tube size(Internal diameter / outer diameter), tracheal tube type, tracheal tube exchange after tracheal intubation, there throat, hoarseness	—

Countries

Japan

Contacts

Public ContactShinichiro Kusaba

Saga-ken medical centre Koseikan Department of anesthesia

rinsho@koseikan.jp0952242171

Outcome results