Intratracheal Inbubation
Conditions
Brief summary
This study compares the time required to complete intubation in obese patients (Body Mass Index 40 or greater) when using either the GlideScope or Airway Scope video laryngoscope device to help place the endotracheal tube.
Detailed description
This is a randomized controlled trial of two video laryngoscope devices when used in patients with high (≥40) Body Mass Index (BMI): Airway Scope (Nihon Kohden) and GlideScope (Verathon Inc.). The study compares several outcomes as proxies for ease of intubation including time to complete intubation, number of attempts needed, minimum peripheral oxygen saturation (SpO2) during intubation, and number of episodes of SpO2 falling below 90% before intubation is completed. The patient population is consenting adult patients with BMI ≥40, who are already scheduled for general anesthesia. Intubations will be performed by attending anesthesiologists or anesthesiology residents. Obesity is a known risk factor for difficult intubation due to anatomical changes caused by increased soft tissue around the face and neck. Obese patients' blood oxygen level can rapidly fall during intubation because these patients often have reduced functional residual capacity, and the acuity of any complications may also be increased because these patients also often have additional comorbidities.
Interventions
DEVICEIntubation with GlideScope
Intubation performed by anesthesiologist using the GlideScope video laryngoscope device
DEVICEIntubation with Airway Scope
Intubation performed by anesthesiologist using the Airway Scope video laryngoscope device
Sponsors
University of New Mexico
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
SINGLE (Subject)
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Adult (age ≥18 years) * Body Mass Index (BMI) ≥40 * Scheduled for surgery with general anesthesia
Exclusion criteria
* Pregnancy * Congenital facial or airway anomalies * History of major neck surgery or tracheostomy * History of any lung diseases/conditions such as Chronic Obstructive Pulmonary Disease, lung resection, or lung cancer * History of cardiac failure or myocardial infarction * Prisoners
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Intubation completion time | Perioperative/Periprocedural | Time interval between the start of the intubation procedure and its completion, defined by confirmed end-tidal carbon dioxide (CO2) observation. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Humber of hypoxia episodes | Perioperative/Periprocedural | The number of episodes of hypoxia during the intubation procedure, defined as peripheral oxygen saturation (SpO2) \<90%. |
| Number of intubation attempts | Perioperative/Periprocedural | The count of attempts required to complete the intubation procedure, with completion defined as confirmed end-tidal CO2 |
| Minimum SpO2 observed during intubation | Perioperative/Periprocedural | The minimum value of SpO2 observed during the intubation procedure |
Countries
United States
Contacts
CONTACTYuta Kashiwagi, MD
Outcome results
None listed