Balloon laryngoscopy reduces head extension and blade leverage in patients with potential cervical spine injury
Background:
Head extension and excessive laryngoscope blade levering motion
(LBLM) are undesirable during airway management of trauma patients. We
hypothesized that laryngoscopy with a modified blade facilitating glottic
exposure by balloon inflation would reduce head extension and LBLM.
Patients and methods:
Seventeen elective surgery patients were enrolled. Patients lay
supine with their heads flat on a rigid board and had a rigid collar around
their necks. Laryngoscopy was performed with the modified blade and a standard
curved blade. Head extension and LBLM angles were determined upon maximal
glottic exposure and compared used paired t-tests. Laryngoscopic view
grade and oxygen saturation were also determined.
Results:
Balloon laryngoscopy resulted in less head extension and LBLM
(P <0.001). Laryngoscopic view was approximately identical with
both blades, and oxygen saturation was always above 97%.
Conclusions:
Balloon laryngoscopy reduces head extension and LBLM under
simulated cervical spine precautions.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
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|
| contactPoint |
{
"fn": "NIH",
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|
| description | Background: Head extension and excessive laryngoscope blade levering motion (LBLM) are undesirable during airway management of trauma patients. We hypothesized that laryngoscopy with a modified blade facilitating glottic exposure by balloon inflation would reduce head extension and LBLM. Patients and methods: Seventeen elective surgery patients were enrolled. Patients lay supine with their heads flat on a rigid board and had a rigid collar around their necks. Laryngoscopy was performed with the modified blade and a standard curved blade. Head extension and LBLM angles were determined upon maximal glottic exposure and compared used paired t-tests. Laryngoscopic view grade and oxygen saturation were also determined. Results: Balloon laryngoscopy resulted in less head extension and LBLM (P <0.001). Laryngoscopic view was approximately identical with both blades, and oxygen saturation was always above 97%. Conclusions: Balloon laryngoscopy reduces head extension and LBLM under simulated cervical spine precautions. |
| distribution |
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"@type": "dcat:Distribution",
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|
| identifier | https://healthdata.gov/api/views/a44t-rhyf |
| issued | 2025-07-13 |
| keyword |
[
"airway-management",
"cervical-spine-injury",
"glottic-exposure",
"laryngoscopy",
"nih"
]
|
| landingPage | https://healthdata.gov/d/a44t-rhyf |
| modified | 2025-09-06 |
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"009:048"
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|
| publisher |
{
"name": "National Institutes of Health",
"@type": "org:Organization"
}
|
| theme |
[
"NIH"
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|
| title | Balloon laryngoscopy reduces head extension and blade leverage in patients with potential cervical spine injury |
