Unexpected Difficult Airway
Conditions
Keywords
difficult airway, indirect laryngoscopy, C-MAC video laryngoscope
Brief summary
The purpose of this study is to evaluate the C-MAC video laryngoscope in difficult airway situations.
Detailed description
Unanticipated difficulties during tracheal intubation and failure to intubate are among the leading causes of anaesthesia related morbidity and mortality. Using the technique of video laryngoscopy, the alignment of the oral and pharyngeal axis to facilitate endotracheal intubation is obsolete. In this study we evaluate the C-MAC video laryngoscope (STORZ, Tuttlingen, Germany) for endotracheal intubation in difficult intubation situations (Cormack & Lehane (CL) grade 3 and 4) validated by Macintosh laryngoscope. We hypothesize that endotracheal intubation is possible using the C-MAC in patients after failed direct laryngoscopy. We also examine whether visualisation of the glottis is improved with this device compared to direct laryngoscopy and possible complications such as soft tissue injury.
Interventions
DEVICEEndotracheal intubation using the C-MAC video laryngoscope
Using the C-MAC video laryngoscope for endotracheal intubation after failed direct laryngoscopy
Sponsors
Johannes Gutenberg University Mainz
Study design
Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Unexpected difficult airway
Exclusion criteria
* History of difficult or impossible mask ventilation * Age \< 18 years * ASA grade \> 3 * Emergency surgery
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Success rate of endotracheal intubation using the C-MAC video laryngoscope | — | The investigators evaluate the C-MAC as an alternative after failed direct laryngoscopy. Primary outcome measure is the success rate using the C-MAC video laryngoscope in unexpected difficult airways. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| - improved glottic view | — | According to the Cormacl-Lehane classification the improved glottis view using the C-MAC is documented. |
| - complications | — | Possible complications are supra glottic trauma, tooth damage, soft tissure bleeding,... |
| - numbers of intubation attempts | — | Necessary intubation attempts using the C-MAC video laryngoscope to secutre the airway. |
| - size of blade (C-MAC) | — | Different blades are available for the C-MAC. We evaluate with which blade securing the airway was possible. |
Countries
Germany
Outcome results
None listed