Les tubes trachéaux de PVC exercent des forces et des pressions de sept à dix fois plus élevées que les tubes en silicone ou les tubes armés — une étude in vitro

Comparison of the air-Q ILA™ and the LMA-Fastrach™ in airway management during general anaesthesia

“…We postulate that the rigid tip of the ETT may have often pushed against the anterior portion of the glottis and vocal cords, which led to an increased incidence of failed intubation and resultant trauma. [22][23][24] It was also noted that proper positioning of the supraglottic airway devices largely influenced successful tracheal intubation. The size of the supraglottic airway devices played a role in this as success was achieved in patients with smaller builds, when another attempt, with a smallersized supraglottic airway device, was made.…”

A comparison of conventional endotracheal tube with silicone wire-reinforced tracheal tube for intubation through intubating laryngeal mask airway

“…They found that the PVC ETT exerted 7-10 times higher forces and pressures than the silicone and armored ETTs. [21] Softening of the PVC tube by prewarming and avoiding force during the tracheal intubation are likely to decrease the incidence of trauma. However, it must be remembered that the softness of the PVC tube warmed to 40° is preserved only over a brief period of 40 s. All tracheal intubations were accomplished within this time in our study.…”

Letter to the Editor

“…This results in significantly lesser trauma to the airway structures and oesophagus. 5 However, unexpected complications during management of the difficult airway can occur in the form of equipment malfunction, or unavailability of necessary equipment at critical junctures. Securing the airway is of prime importance in these circumstances.…”