GlideScope Video Laryngoscope Versus Fiberoptic Intubation

N/ACompletedNCT01091948

The Cleveland Clinic75 enrolled

Overview

Following informed consent, patients will be randomly assigned to oral fiberoptic intubation or to oral intubation using the GlideScope Video Laryngoscope. Following the induction of general anesthesia a sealed envelope would be opened to reveal the technique to be used. A stop watch will be started at the beginning of the procedure. At the completion of intubation the stop watch will be stopped and the time recorded along with other data. Based on a sample size estimation process, it is the investigators plan to study fifty patients. The two techniques will be compared in terms of the average time needed to place the endotracheal tube and studied using a two-sided T-Test with a significance level of 0.05. To ensure comparability between the two methods, all intubators will be required to have at experienced at least 10 uses of the GlideScope and 10 uses with fiberoptic intubation.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

SUPPORTIVE_CARE

Masking

SINGLE

Enrollment

Conditions

Oral Intubation

Interventions

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

Inclusion Criteria: * at least 18 years old * scheduled for elective surgery requiring orotracheal intubation. Exclusion Criteria: * known, difficult airway * loose teeth * pregnant * require a rapid sequence induction, * Body Mass Index under 30 * unable to give consent * if special endotracheal tube (ETT) is needed for the case.

Outcomes

Primary Outcomes

Time to Intubation (TTI) as Measured in Seconds

Time from insertion of either the GlideScope or in the case of fibreoptic intubation, a Williams airway (SunMed, Largo, FL, USA) into the mouth, to the time when end-tidal PCO2 exceeded 2.7 kPa (20 mmHg).

Time frame: from start of intubation to successfully intubated up to 100 seconds

Secondary Outcomes

Intubation Difficulty Score

Intubation difficulty score is a 100-mm-long visual analogue scale (100 mm = extremely difficult);

Time frame: from start of intubation to successfully intubated

Successful Intubation on 1st Attempt

Time frame: from start of first intubation to end of first intubation attempt

Occurrence of Hypoxaemia

Arterial oxygen saturation was recorded at 1 min prior to intubation, intubation, and 2, 4, 6, 8, and 10 min after; hypoxaemia was defined as occurrence of arterial oxygen saturation \<90% at any of the above measurements.

Time frame: at 1 min prior to intubation, intubation, and 2, 4, 6, 8, and 10 min after

Trace Bleeding

Trace bleeding is a binary outcome: yes or no, which is determined based on amount of post-intubation bleeding present in the suction tube

Time frame: Right after intubation

Sore Throat Grade

Time frame: On the first postoperative day

Number of Intubation Attempts