Application of PEEP using the i-gel during volume-controlled ventilation in anesthetized, paralyzed patients

作者：Kim Yong Beom; Chang Young Jin; Jung Wol Seon; Byen Sang Ho; Jo Youn Yi^*

来源：Journal of Anesthesia, 2013, 27(6): 827-831.

DOI：10.1007/s00540-013-1628-2

• i-gel
• PEEP
• Controlled ventilation

Purpose This prospective, randomized trial was designed to assess whether the i-gel supraglottic airway device is suitable for volume-controlled ventilation while applying positive end-expiratory pressure (PEEP) of 5 cmH(2)O under general anesthesia. It was believed that this device might improve arterial oxygenation.
Methods Forty adult patients (aged 20-60 years) scheduled for elective orthopedic surgery were enrolled in this study. Twenty patients were ventilated without external PEEP [zero positive end-expiratory pressure (ZEEP) group], and the other 20 were ventilated with PEEP 5 cmH(2)O (PEEP group) after placing an i-gel device. Volume-controlled ventilation at a tidal volume (TV) of 8 ml/kg of ideal body weight, leak volume, and arterial blood gas analysis were investigated.
Results The incidences of a significant leak were similar in the ZEEP and PEEP groups (3/20 and 1/20, respectively; P = 0.605), as were leak volumes. No significant PaO2 difference was observed between the two groups at 1 h after satisfactory i-gel insertion (215 +/- 38 vs. 222 +/- 54; P = 0.502).
Conclusions The use of an i-gel during PEEP application at 5 cmH(2)O did not increase the incidence of a significant air leak, and a PEEP of 5 cmH(2)O failed to improve arterial oxygenation during controlled ventilation in healthy adult patients.

• 出版日期2013-12