Comparison of the Pentax AWS s-100 and the new Pentax AWS s-200 in the success rate of tracheal intubation

Comparison of the Pentax AWS s-100 and the new Pentax AWS s-200 in the success rate of tracheal intubation - Comparison of the Pentax AWS s-100 and the new Pentax AWS s-200 in the success rate of tracheal intubation

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000018922

Enrollment

Registered

2015-12-01

Start date

2018-10-01

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

The Pentax AWS s-100 The Pentax AWS s-200

Interventions

Tracheal intubation by AWS s-100 in 35 adult patients (ASA physical status 1-2, aged over 20 years) scheduled for elective surgery in under general anaesthesia, in 1 April 2016 to 31 December 2016.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 70 adult patients (ASA physical status 1-2, aged over 20 years) scheduled for elective surgery in under general anaesthesia,

Exclusion criteria

Exclusion criteria: Patients with any pathology of the neck or upper respiratory tract or at risk of pulmonary aspiration of gastric contents were excluded. Patients in whom ventilation through a facemask and tracheal intubation were predicted to be difficult were also not taken into the study.

Design outcomes

Primary

Measure	Time frame
The primary outcome is the success rate of intubation using AWS s-100 or AWS s-200, and we compare the success rate. We measure the time for traceal intubation(start laryngoscope(by AWS) to the tracheal tube through the glottis). In many reports, the success rate was higher than 95% in first attempt, and average time for traceal intubation was 30 sec by AWS s-100. In our study, we define the intubation is successful within 60 sec by AWS(s-100 or s-200), and failure over 60 sec. If the intubation was failure, we record the reason (tracheal tube hit artenoids et, al). We could not intubate within 60 sec, we can adjusted tube position by pressing the patient's neck, and try the tracheal intubation. Fisher's test is used to compare the success rate of the intubation by AWS s-100 or AWS s-200, and 95% CI for differences in the success rates between the two occasions.	—

Measure

Time frame

The primary outcome is the success rate of intubation using AWS s-100 or AWS s-200, and we compare the success rate. We measure the time for traceal intubation(start laryngoscope(by AWS) to the tracheal tube through the glottis). In many reports, the success rate was higher than 95% in first attempt, and average time for traceal intubation was 30 sec by AWS s-100. In our study, we define the intubation is successful within 60 sec by AWS(s-100 or s-200), and failure over 60 sec. If the intubation was failure, we record the reason (tracheal tube hit artenoids et, al). We could not intubate within 60 sec, we can adjusted tube position by pressing the patient's neck, and try the tracheal intubation. Fisher's test is used to compare the success rate of the intubation by AWS s-100 or AWS s-200, and 95% CI for differences in the success rates between the two occasions.

—

Secondary

Measure	Time frame
Comparison of the time for tracheal intubation by s-100, or s-200. Comparison of the view of the glottis by s-100, or s-200.	—

Countries

Japan

Contacts

Public ContactYuichi Hashimoto

Dokkyo Medical University Koshigaya Hospital Department of Anesthesia

h-yuich@dokkyomed.ac.jp048-965-4948

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026