Respiratory failure & ventilation
Regional lung ventilation during supraglottic and subglottic jet ventilation: A randomized cross-over trial
Authors' conclusion
The center of ventilation distribution, a measure of atelectasis, was similar with supraglottic and subglottic jet ventilation. Subglottic jet ventilation improved the dorsal-dependent lung region and provided superior arterial oxygenation. Both techniques effectively eliminated carbon dioxide, with the supraglottic approach demonstrating slightly superior efficacy.
Study context
- Population
- Patients having elective micro-laryngotracheal surgery30 completed
- Comparison
- Supraglottic vs subglottic jet ventilation
- Primary endpoint
- Center of ventilation (measure of ventro-dorsal atelectasis) by electrical impedance tomography
Methodological detailscross-over
- Cross-over
Primary result
As reported in the abstract
Center of ventilation
- No statistically significant or clinically meaningful differences in the center of ventilation between supraglottic and subglottic ventilation
Further findings
Arterial oxygenation
Regional ventilation distribution
- Supraglottic ventilation about 4 % higher in the ventromedial lung region
- Supraglottic ventilation about 4 % lower in the dorsal lung
Arterial oxygenation
- Considerably worse with supraglottic than subglottic ventilation
PaCO2
- Near 40 mmHg with each approach, slightly lower with supraglottic jet ventilation
Original publication
Regional lung ventilation during supraglottic and subglottic jet ventilation: A randomized cross-over trial. J Clin Anesth. Published 10 February 2025. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →