A randomized prospective study comparing the Cobra Perilaryngeal Airway and Laryngeal Mask Airway-Classic during controlled ventilation for gynecological laparoscopy.
BACKGROUND
An increasing number of noninvasive, supraglottic airway devices are currently available. In this randomized single-blind study, we compared the Cobra Perilaryngeal Airway (CobraPLA) to the [Laryngeal Mask Airway (LMA)-Classic] during gynecological laparoscopy.


METHODS
Forty patients received either an LMA-Classic or a CobraPLA. Insertion, ventilation and removal characteristics were noted, as well as any throat morbidity.


RESULTS
Devices were similar for insertion characteristics, adverse events, and throat morbidity. Before pneumoperitoneum, peak airway pressures were 20.3 +/- 4.9 cm H2O in the LMA-Classic group versus 25.5 +/- 7.9 cm H2O in the CobraPLA group, P = 0.01. This difference was maintained during pneumoperitoneum; LMA-Classic (22.8 +/- 6.1 cm H2O) and CobraPLA (28.1 +/- 8.5 cm H2O), P = 0.04. Macroscopic blood occurred only on the CobraPLA, seen on 40% of the devices after removal, P = 0.001.


CONCLUSIONS
During gynecological laparoscopy, the CobraPLA provides similar insertion characteristics, but higher airway sealing pressures than the LMA-Classic. The usefulness of this finding requires further investigation.
Galvin
Eilish M
EM
Department of Anesthesiology, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands. eilishgalvin@hotmail.com
van Doorn
Mirjam
M
Blazquez
Juan
J
Ubben
Johannes F
JF
Zijlstra
Freek J
FJ
Klein
Jan
J
Verbrugge
Serge J C
SJ
D000328:Adult; D005260:Female; D013509:Gynecologic Surgical Procedures; D006801:Humans; D007442:Intubation, Intratracheal / Q000295:instrumentation / Q000379:methods*; D010535:Laparoscopy; D017214:Laryngeal Masks