[Classic laryngeal mask airway vs COBRA-PLA device for airway maintenance during minor urological procedures].
BACKGROUND
In recent years, different supraglottic airway devices became popular and new constructions have been proposed. We compared a classic laryngeal mask airway (LMA-classic) with the COBRA-PLA device (a LMA of different design).


METHODS
Fifty adult ASA 1 and 2 adult patients, scheduled for minor urological interventions were randomly allocated to receive the LMA-Classic or the COBRA-PLA.


RESULTS
Time to secure airway was shorter for the LMA-Classic (16.8+/- 5 sec vs 33.0 +/- 19.6 sec; p<0.0001). The leak pressure was higher in the COBRA group (29.0+/- 7.5 vs 22.2 +/- 3.5 cm H2O; p=0.001). The cuff pressure, necessary for obtaining adequate seal, was higher for the LMA (83.6 +/- 14.1 vs 60.2 +/- 16.4 cm H2O; p<0.0001). We did not observe statistically significant differences in heart rate, arterial blood pressure, pulse oximetry and frequency of sore throat.


CONCLUSIONS
The LMA-classic was easier to insert but the COBRA device had more effective seal. These differences were not clinically important; both devices were found equally effective.
Wrońska-Sewruk
Agnieszka
A
I Klinika Anestezjologii i Intensywnej Terapii UM w Lublinie. anest@am.lublin.pl
Nestorowicz
Andrzej
A
Kowalczyk
Michał
M
D000328:Adult; D000368:Aged; D004867:Equipment Design; D005260:Female; D006801:Humans; D007442:Intubation, Intratracheal / Q000295:instrumentation*; D017214:Laryngeal Masks; D008297:Male; D008875:Middle Aged; D013520:Urologic Surgical Procedures / Q000295:instrumentation*