McGRATH MAC video-laryngoscope for insertion of a transesophageal echocardiography probe.

McGRATH MAC video-laryngoscope for insertion of a transesophageal echocardiography probe. - McGRATH MAC video-laryngoscope for insertion of a transesophageal echocardiography probe.

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000012970

Enrollment

100

Registered

2014-01-27

Start date

2014-01-29

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, who are scheduled for elective surgery under general anesthesia and required intraoperative monitoring of TEE

Interventions

The Macintosh laryngoscope is used to visualize passage of the TEE probe. McGRATH is used to visualize passage of the TEE probe.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients, who are scheduled for elective surgery under general anesthesia and required intraoperative monitoring of TEE, are included in this study.

Exclusion criteria

Exclusion criteria: Patients with sore throat, oropharyngeal infection, or neck pain are excluded.

Design outcomes

Primary

Measure	Time frame
The outcomes observed are 1) duration of TEE probe insertion, 2) number of attempts, 3) visibility of the esophageal inlet, and 4) presence of an oropharyngeal injury.	—

Countries

Japan

Contacts

Public ContactTakashi Ishida

Shinshu University School of Medicine Department of Anesthesiology and Resuscitology

tisd@shinshu-u.ac.jp0236-37-2670

Outcome results

None listed

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