Comparison of Disposcope Endoscope and Fiberoptic Bronchoscope

A Comparison of Disposcope Endoscope and Fiberoptic Bronchoscope During Awake Orotracheal Intubation in Obese Patients With Anticipated Difficult Airway : A Prospective, Randomised and Controlled Clinical Trial

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT02669550

Enrollment

Registered

2016-02-01

Start date

2012-07-31

Completion date

2015-10-31

Last updated

2017-09-26

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

Conditions

Therapeutic Procedural Complication

Keywords

Fiberoptic bronchoscope, Disposcope endoscope, Awake orotracheal intubation

Brief summary

The fiberoptic bronchoscope (FOB) has been the preferred instrument for many years in the management of difficult tracheal intubation, and it is considered as a gold standard. The disposcope endoscope (DE) is a medical device for endotracheal intubation used in clinical practice recently.This study compares FOB and DE for awake orotracheal intubation in obese patients with anticipated difficult airway.

Detailed description

Forty obese patients with anticipated difficult airways were randomised to undergo awake orotracheal intubation by FOB(group F) or DE(group D) after conscious sedation. The conditions of orotracheal intubation, the time needed to view the vocal cords and to complete the orotracheal intubation, the hemodynamic changes and the adverse events including bradycardia, respiratory depression during orotracheal intubation, throat pain, hoarseness and memory after surgery were recorded. The ease of view the vocal cords and passing the tracheal tube through the glottis were also evaluated by using a visual analogue scale (VAS) by operator.

Interventions

DEVICEFiberoptic bronchoscope

In case of FOB, the FOB was inserted into oral cavity, and the epiglottis and glottis were identified by the FOB. The anterior of FOB was inserted deep into tracheal after the glottis was exposed sufficiently then the tracheal tube was pushed into the trachea via the FOB

DEVICEDisposcope endoscope

In the DE group, the operator gripped the chin and lower incisors of patients with the fingers and thumb to open the mouth adequately wide and grasped the wire body, which was enclosed within the endotracheal tube, by the other hand and held it parallel to,then inserted into oral cavity

Study design

Allocation

RANDOMIZED

Intervention model

FACTORIAL

Primary purpose

OTHER

Masking

DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender

ALL

Age

18 Years to 70 Years

Healthy volunteers

Yes

Inclusion criteria

* ASA classifications of I-II, modified Mallampati classification of 3 or 4, requiring general anesthesia were included.

Exclusion criteria

Design outcomes

Primary

Measure	Time frame
Intubation Time	36 months

Secondary

Measure	Time frame
Occurrence of throat pain measured by VAS	36 months

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026