Anesthesia
Conditions
Keywords
laryngeal mask, Supreme, Protector
Brief summary
The goal of this study is to compare the oropharyngeal leak pressure of the Protector Laryngeal mask with the Supreme laryngeal mask. Other secondary parameters will be studied.
Detailed description
The OLP as the primary outcome measurement will be evaluated after insertion of the LMA in each group. We hypothesize that there will be a difference of 4 cm H2O between the 2 masks, because of the different material and slightly different form of the masks. Secondary outcomes will be measured after insertion of the LMA as by protocol. Finally postoperative airway morbidity will be evaluated 3 hours after removal of the LMA.
Interventions
DEVICEProtector
All patients which are assigned to the Protector are studied with this laryngeal mask
DEVICESupreme
All patients which are assigned to the Supreme are studied with this laryngeal mask
Sponsors
Schulthess Klinik
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)
Eligibility
Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No
Inclusion criteria
* Age between 18-75 * ASA 1-3 * Operation on limbs * written informed consent
Exclusion criteria
* known difficult airway * anatomical abnormalities on airway, Larynx, oesophagus, stomach * not fastened * high aspiration risk * patients with contraindication of laryngeal mask * BMI \>35 kg/m2 * patients with disease which impairs accurate Investigation of patient * cardiovascular risk factors * COPD * acute disease where anaesthesia is in doubt * no written consent
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| OLP | 5 minutes | oropharyngeal leak pressure |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| CO2 | 5 minutes | endtidal CO2 |
| blood staining | 5 minutes | visible blood staining after removal of the laryngeal mask |
| airway morbidity | 3 hours | assess sore throat, neck pain |
| insertion | 5 minutes | insertion of LMA |
| suctioning fluids | 5 minutes | ml suctioned from suctioning catheter |
| Brimacombe score | 5 minutes | Brimacombe score |
| respiratory pressure | 5 minutes | maximum respiratory pressure for adequate ventilation |
| suctioning catheter | 5 minutes | number needed of insertion of suctioning catheter |
| time of insertion | 5 minutes | time of Insertion of LMA |
Countries
Switzerland
Outcome results
None listed