[Clinical evaluation of the single use Laryngeal Tube in adults: the LTD].
OBJECTIVE
The Laryngeal Tube (LT) is a supra-laryngeal device indicated to manage upper airway during anaesthesia. Leak pressures were lately reported higher for the LT as compared to the LMA. A recent study found a small amount of proteinaceous material on LMA after classical sterilization suggesting a risk of contamination by unconventional transmissible agents (prions). The aim of this study was to evaluate the effectiveness of the single use Laryngeal Tube: the LTD.


METHODS
Prospective study realized after ethical committee agreement and patient consent for participation.


METHODS
Adults, ASA score< or =3, 18 to 75-year-old, without upper airway abnormality or difficult intubation criteria, anaesthesia< or =2 h, free access to patient's head and LTD. The following criteria were evaluated: easiness of insertion, assisted (AV), controlled (CV) and spontaneous ventilation (SV); leak pressure (LP) 5 and 15 min after insertion; complications during anaesthesia conducted with propofol and remifentanil under bispectral index monitoring.


RESULTS
55 patients were included; only one failure was reported at insertion. AV and CV were easy, SV difficult in 4 patients with chin lift necessary for adequate ventilation. LP was 28.92+/-8.4 and 30.87+/-8.68 cmH2O 5 and 15 min after insertion respectively. No major incident was noticed throughout the study.


CONCLUSIONS
the use of the LTD was easy and successful. Moreover the LTD totally excluded the risk of contamination by unconventional transmissible agents.
Richebé
P
P
Département d'anesthésie et réanimation III, CHU de Bordeaux, hôpital Saint-André, 33075 Bordeaux, France. philippe.richebe@u-bordeaux2.fr
Verdonck
O
O
Biais
M
M
Breton
Y
Y
Cros
A M
AM
Maurette
P
P
D000328:Adult; D000368:Aged; D000768:Anesthesia, General; D000769:Anesthesia, Inhalation / Q000295:instrumentation*; D018686:Anesthetics, Intravenous; D005260:Female; D006801:Humans; D007442:Intubation, Intratracheal / Q000295:instrumentation*; D017214:Laryngeal Masks; D007830:Larynx / Q000502:physiology; D008297:Male; D008875:Middle Aged; D010880:Piperidines; D011446:Prospective Studies; D000077208:Remifentanil; D012121:Respiration, Artificial; D013242:Sterilization
D018686:Anesthetics, Intravenous; D010880:Piperidines; D000077208:Remifentanil