Skip to main content
OpenTrials
Completed

NCT Number: NCT02159768

Visualization of the Larynx With the Airtraq Laryngoscope and Image Transmission

The Airtraq is a battery powered single use optical laryngoscope with a channel to hold and guide the tracheal tube into the trachea. It enables tracheal intubation in patients with normal and difficult airways, by enabling laryngoscopy without neck movement. As a single use device, it is cost effective to have these placed in emergency equipment kits, and for use by emergency and military personnel.

However, it does have several limitations. The Airtraq requires the user to place his/her eye to the eyepiece in order to see the advancement of the laryngoscope and the tracheal tube, which may be difficult if the patient is on the ground or in emergency scenarios. Only the user can see through the eyepiece and any assistants are unable to view the larynx, this makes it difficult for assistants to help the operator.

Many handphones now incorporate high quality cameras. In this study, we will evaluate the effectiveness of using the iPhone to aid laryngoscopy with the Airtraq optical laryngoscope during laryngoscopy and intubation in 30 patients presenting for elective surgery under general anaesthesia. We have manufactured an attachment that fits over the eyepiece of the Airtraq, to hold an iPhone to the eyepiece. This will enable to operator and assistants to simultaneously view the insertion of the Airtraq, view the larynx and view the passage of the tracheal tube into the trachea.

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Anaesthesia

Age range

21 year–80 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

National University Hospital

Singapore, 119074

About this study

This study is a single-cohort study design. 30 patients undergoing elective surgery under general anaesthesia will be recruited. They will have endotracheal intubation done with the Airtraq optical laryngoscope and handphone camera assisted visualization.

The Airtraq optical laryngoscope fitted with the attachment holding the camera handphone will be prepared and loaded with an appropriately sized endotracheal tube. A standard general anaesthesia technique will be used. This will include standard monitoring including pulse oximetry, non-invasive blood pressure, ECG and capnography, all started before induction of anaesthesia. Anaesthesia will be induced with proprofol and fentanyl, and muscle relaxation with atracurium.

The airway management procedure will start after induction of anaesthesia and muscle relaxation. The Airtraq optical laryngoscope will be used. The Airtraq is fit with an attachment to hold the camera handphone, and loaded with an endotracheal tube. The Airtraq will be inserted and manipulated until the best view of the patient's laryngeal opening can be seen on the camera handphone screen. The endotracheal tube will then be placed in the patient's trachea and the cuff inflated. Successful intubation will be confirmed by 3-point auscultation and presence of end-tidal carbon dioxide tracing.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Adult patients requiring general anaesthesia for elective surgery and who require tracheal intubation as part of the anaesthesia technique.

American Society of Anesthesiologists Class I to III physiological status.

Exclusion criteria

Children Pregnant patients Patients who have not fasted for at least 6 hours pre surgery Patients at risk of regurgitation and aspiration

Treatment and study plan

Airtraq visualization

Device

Larynx visualization with Airtraq and attached handphone

Other names: Airtraq Avant

Primary outcomes

  1. Visualization of Larynx With the Airtraq Laryngoscope and Handphone

    Time frame: Intra operative

    The efficacy of viewing the larynx via the handphone attached to the Airtraq laryngoscope will be assessed.

Secondary outcomes

  1. Transmission of Airtraq View of Larynx

    Time frame: Intra operative measurement, time frame within 5 minutes

    The view of the larynx will be captured by the handphone attached to the Airtraq layryngoscope, and then transmitted to a second investigator.

Sponsors and collaborators

Lead sponsor

National University Hospital, Singapore

Other

Registry information

Important dates

Study start
2013
Primary completion
2015
Study completion
2015
First posted
Jun 10, 2014
Registry last updated
Feb 22, 2016

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.