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Videolaryngoscopes offer the potential to make tracheal intubation easier for the anaesthetist and less traumatic for the patient. This study aims to compare the intubation difficulty scores (a validated scoring system for ease of intubation) using the McGrath MAC as a videolaryngoscope, the McGrath MAC only as a direct laryngoscope (without video screen) and the MacIntosh laryngoscopes.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| MacIntosh | Active Comparator |
| |
| McGrath MAC direct | Active Comparator |
| |
| McGrath MAC indirect | Active Comparator |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Laryngoscopy | Device | After establishing full monitoring, inducing general anaesthesia and ensuring paralysis laryngoscopy is performed and the patient's trachea intubated. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Intubation Difficulty Score | The Intubation Difficulty Scale (IDS) is a numerical score based on seven parameters. The scoring of each parameter represents a divergence from an 'ideal' condition and the total score represents a sum divergence from a zero difficulty ideal intubation. The seven parameters are number of supplementary attempts, number of supplementary operators, number and type of alternative techniques used, laryngoscopic grade, subjective lifting force, the use of external laryngeal manipulation and mobility or position of the vocal cords. | 5 minutes |
| Measure | Description | Time Frame |
|---|---|---|
| Time to intubation | 5 minutes | |
| Number and types of alternative techniques used | 5 minutes | |
| Perception of force used |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Claire D Wallace, MBChB | NHS Tayside | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| NHS Tayside | Tayside | Tayside | United Kingdom |
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| ID | Term |
|---|---|
| D007828 | Laryngoscopy |
| ID | Term |
|---|---|
| D003948 | Diagnostic Techniques, Respiratory System |
| D019937 | Diagnostic Techniques and Procedures |
| D003933 | Diagnosis |
| D004724 | Endoscopy |
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| 5 minutes |
| Complications | 5 minutes |
| Ease of intubation | 5 minutes |
| Failure to intubate | 5 minutes |
| D003949 | Diagnostic Techniques, Surgical |
| D019060 | Minimally Invasive Surgical Procedures |
| D013514 | Surgical Procedures, Operative |
| D013517 | Otorhinolaryngologic Surgical Procedures |