A New Insertion Technique for Laryngeal Mask Airway
Completed · Not applicable
Conditions studied: Airway Morbidity
In brief
A laryngeal mask airway ("LMA") is an airway device that is commonly used and placed under general anesthesia to facilitate ventilation of the patient's lungs while anesthetized. It is similar to an "endotracheal tube" (a breathing tube) but is less invasive. It is also placed as a backup when the Anesthesiologist is unable to pass a breathing tube and the patient is not adequately ventilating. Unfortunately, an LMA may lead to complications similar to those of breathing tube placement, such as sore throat and hoarse voice. Previous studies have examined several variables that may affect how often complications occur; these variables include giving anti-inflammatory medications and inflating the LMA to different pressures (the "working" end of the LMA, which rests in the patient's throat, has a cuff that is inflated to provide a seal). We are studying the effect of the PLACEMENT TECHNIQUE on postoperative sore throat, hoarse voice, and difficulty swallowing. We will be using 3 placement techniques - the traditional placement technique, a slightly different traditional placement technique, and a new technique, abbreviated the "ELLIA" method. The hypothesis of this study is that a new LMA insertion technique will have no difference in postoperative pharyngolaryngeal morbidity including sore throat, dysphagia and dysphonia.
Key facts
- Study ID
- NCT01749033
- Run by
- Northwestern University
- People needed
- 450
- Starts
- 2011-11-01
- Expected to finish
- 2015-12-01
- Last updated by the study team
- 2019-12-17
Who can join
Age: 18 and older, up to 90. Sex: any. Healthy volunteers: not accepted.
You may qualify if…
- ASA (American Society of Anesthesiologists patient fitness category) I, II, III
- Age 18-90
- General anesthetic for where LMA (Laryngeal Mask Airway) placement is not contraindicated will be included
You may not qualify if…
- Small mouth opening
- Preoperative sore throat/dysphagia/dysphonia
- Patients at increased risk for aspiration
- Morbid obesity BMI > 40
- Untreated chronic GERD
- Pregnancy
- Suspected supraglottic abnormalities
- N2O use
- Need for oral-pharyngeal suctioning
- Undergoing oral and nasal surgery
- Intubation or any oral instrumental manipulations other than
- LMA placements intraoperatively or postoperatively
Where it is running
- Northwestern Memorial Hospital — Chicago, Illinois, United States
Full record on ClinicalTrials.gov
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