Bonjour Marie-Charlotte, Il est écrit dans l'article de Agro (référence ci-bas, article à lire) que le Combitube peut être laissé en place jusqu'à 8 heures.: The Combitube may be kept in situ for up to 8 hours._[4]_ (http://home.mdconsult.com/das/article/body/1/jorg=journal&source=MI&sp=12520314&sid=180814701/N/ 312357/#R02003562004) The Combitube allows controlled mechanical ventilation at ventilation pressures as high as 50 cm H2O5. In cases of prolonged ventilation, the Combitube can be replaced by deflation of the oropharyngeal balloon and insertion of an ETT with the help of either a laryngoscope or fiberoptic instrument placed anterior or lateral to the Combitube. (...) On y trouve aussi le paragraphe suivant: Effectiveness of ventilation with the Combitube Ventilation and oxygenation via the Combitube showed comparable results to endotracheal intubation in crossover studies involving either cardiopulmonary arrest Patients_[7]_ (http://home.mdconsult.com/das/article/body/1/jorg=journal&source=MI&sp=12520314&sid=180814701/N/312357/#R02003562007) or patients undergoing elective surgery._[8]_ (http://home.mdconsult.com/das/article/body/1/jorg=journal&source=MI&sp=12520314&sid=180814701/N/312357/#R02003562008) Surprisingly, blood gas analysis demonstrated a significantly higher mean arterial oxygen tension (PaO2) in patients ventilated with the Combitube._[7]_ (http://home.mdconsult.com/das/article/body/1/jorg=journal&source=MI&sp=12520314&sid =180814701/N/312357/#R02003562007) The higher PaO2 during ventilation with the Combitube compared with the ETT may be explained by the difference in pressure waveform; with the Combitube, inspiratory pressure increases more slowly and the expiratory-flow time is prolonged with the formation of a small auto-positive end-expiratory pressure._[8]_ (http://home.mdconsult.com/das/article/body/1/jorg=journal&source=MI&sp=12520314&sid=180814701/N/312357/#R0200356200 8) Ventilation (CO2 removal) through the Combitube compared with the ETT is the same. Several noncrossover studies have confirmed that the Combitube provides adequate ventilation and oxygenation, with few complications._[3]_ (http://home.mdconsult.com/das/article/body/1/jorg=journal&source=MI&sp=12520314&si d=180814701/N/312357/#R02003562003) _[6]_ (http://home.mdconsult.com/das/article/body/1/jorg=journal&source=MI&sp=12520314&sid=180814701/N/312357/#R0200356 2006) _[8]_ (http://home.mdconsult.com/das/article/body/1/jorg=journal&source=MI&sp=12520314&sid=180814701/N/312357/#R02003562008) _[9]_ (http://home.mdconsult.com/das/article/body/1/jorg=journal&source=MI&sp=12520314&sid=180814701/ N/312357/#R02003562009) _[10]_ (http://home.mdconsult.com/das/article/body/1/jorg=journal&source=MI&sp=12520314&sid=180814701/N/312357/#R02003562010) Journal of Clinical Anesthesia Volume 14 • Number 4 • June 2002 Current status of the Combitube™: a review of the literature Felice Agro, MD _a_ (http://home.mdconsult.com/das/article/body/1/jorg=journal&source=MI&sp=12520314&sid=180814701/N/312357/#AFF0200356201) , _‖_ (http://home.mdconsult.com/das/article/body/1/jorg=journal&source=MI&sp=12520314&sid=1 80814701/N/312357/#COR0200356201) , _*_ (http://home.mdconsult.com/das/article/body/1/jorg=journal&source=MI&sp=12520314&sid=180814701/N/312357/#FN02003562 01) Michael Frass, MD _b_ (http://home.mdconsult.com/das/article/body/1/jorg=journal&source=MI&sp=12520314&sid=180814701/N/312357/#AFF0200356202) , _†_ (http://home.mdconsult.com/das/article/body/1/jorg=journal&source=MI&sp=12520314&sid= 180814701/N/312357/#FN0200356202) Jonathan L. Benumof, MD _c_ (http://home.mdconsult.com/das/article/body/1/jorg=journal&source=MI&sp=12520314&sid=180814701/N/312357/#AFF0200356203) , _‡_ (http://home.mdconsult.com/das/article/body/1/jorg=journal&source=MI&sp= 12520314&sid=180814701/N/312357/#FN0200356203) Peter Krafft, MD, PhD _d_ (http://home.mdconsult.com/das/article/body/1/jorg=journal&source=MI&sp=12520314&sid=180814701/N/312357/#AFF0200356204) , _§_ (http://home.mdconsult.com/das/article/body/1/jorg=journal&source=MI&sp=12520314&; sid=180814701/N/312357/#FN0200356204)
In a message dated 2007-06-20 17:00:45 Est (heure d'été), [EMAIL PROTECTED] writes: Parlant de combitube Jocelyn, j'ai cherché de la documentation sur le temps qu'il était sûr de le laisser en place et n'ai rien trouvé . Les meilleures réponses étant il va de soi pas plus longtemps qu'il ne faut et le moins longtemps possible évidemment. MCk
