Clinical trial NCT01961817: Airway Management Via the Retromolar Route Access
Official title: Airway Management Via the Retromolar Route Access - a Clinical Study
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Airway Management
Intubation
Keywords: Retromolar
Difficult Intubation
Lead sponsor: Medical University of Vienna
Sponsor class: OTHER
First posted: 2013-10-11
Enrollment: 100
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: CROSSOVER

Brief summary: Is there a difference in vocal cord visualization between the retromolar and conventional access?

Detailed description: Management of the difficult airway is still an essential part of modern anaesthesia. Up to now, there have bee no clinical investigations comparing the intubation method via the retromolar route (RM), with the conventional intubation route (CM).

For the present clinical investigation, 100 patients undergoing elective surgery will be investigated in the General Hospital of Vienna when for the anaesthesia intubation is required. In both intubation methods (RM and CM) the anaesthesiologist will visually determine the Cormack \& Lehane score in a randomly assigned sequence with and without a BURP-manoeuvre (= backwards, upwards and rightwards pressure). Thereafter intubation is performed in all patients by the CM method and if intubation fails the RM technique will be used. Of course, as per usual, every intubation trial is interrupted by a 20 second 100%-oxygen-ventilation period to reach a pulse oximetry oxygen saturation of at least 97% SpO2. Thereafter, if intubation fails again every other intubation technique will be applied, as necessary and called for.

Eligibility criteria: Inclusion Criteria:

* Age \> 18yr
* BMI \< 30kg/m2
* Elective surgery
* Absence of at least one molar of the right mandible

Exclusion Criteria:

* Emergency patients
* Prevalence of reflux disease
* Toothless patients
* Diaphragmatic hernia
* Patient is not sober
* Ventilation problems during induction of anaesthesia
* Gastric regurgitation during induction of anaesthesia
* Patient with a tracheostomy

Primary outcomes:
measure: Comparison of vocal cord visualisation between the retromolar and the conventional method
timeFrame: After Intubation
Secondary outcomes:
Other outcomes:
Locations:
city: Vienna
country: Austria
facility: Medical University of Vienna
Study officials:
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