Pant Deepanjali, Koul Archna, Sharma Bimla, Sood Jayashree
Department of Anaesthesiology, Pain and Perioperative Medicine, Sir Ganga Ram Hospital, New Delhi, India.
Paediatr Anaesth. 2015 Apr;25(4):386-91. doi: 10.1111/pan.12555. Epub 2014 Oct 11.
The i-gel size 1 is a relatively new, single use, second generation supraglottic airway device. This prospective, randomized, observational study compares the suitability of the i-gel size 1 with the classical Laryngeal Mask Airway (cLaryngeal Mask Airway) size 1 in pediatric patients undergoing elective daycare procedures.
Forty ASA I and II children (2-5 kg body weight) were randomized to two groups of 20 each, to receive either the i-gel or the cLaryngeal Mask Airway as an airway device. The primary outcome variable was oropharyngeal seal pressure (OSP). We also assessed ease of insertion, number of insertion attempts, time taken for successful insertion and any intra-operative complications.
Demographic data did not differ between the two groups. The OSP with the i-gel was 22.30 ± 4.72 cm H2O as compared to 18.05 ± 1.95 cm H2O with the cLaryngeal Mask Airway and the difference was statistically significant (P = 0.001). Displacement of the airway device following change of position was reported less often with the i-gel as compared to the cLaryngeal Mask Airway [n = 1 (5%) vs. n = 5 (35%), P = 0.04]. There were no major complications with either device and rest of all the variables were comparable with both the devices.
The OSP of the i-gel size 1 was higher than that of the cLaryngeal Mask Airway. This was statistically significant, although may not be of clinical significance. The i-gel size 1 is less prone to displacement during position changes. However, being a preliminary study carried out on a small number of patients, further trials are warranted to come to any definite conclusion.
i-gel 1号尺寸是一种相对较新的一次性使用的第二代声门上气道装置。这项前瞻性、随机、观察性研究比较了i-gel 1号尺寸与经典1号尺寸喉罩气道（cLaryngeal Mask Airway）在接受择期日间手术的儿科患者中的适用性。
40名美国麻醉医师协会（ASA）分级为I级和II级、体重2 - 5千克的儿童被随机分为两组，每组20名，分别接受i-gel或cLaryngeal Mask Airway作为气道装置。主要观察变量为口咽密封压（OSP）。我们还评估了插入的难易程度、插入尝试次数、成功插入所需时间以及任何术中并发症。
两组之间的人口统计学数据没有差异。i-gel的OSP为22.30±4.72厘米水柱，而cLaryngeal Mask Airway的OSP为18.05±1.95厘米水柱，差异具有统计学意义（P = 0.001）。与cLaryngeal Mask Airway相比，i-gel在体位改变后气道装置移位的报告较少[n = 1（5%）对n = 5（35%），P = 0.04]。两种装置均未出现重大并发症，所有其他变量在两种装置之间具有可比性。
i-gel 1号尺寸的OSP高于cLaryngeal Mask Airway。这具有统计学意义，尽管可能不具有临床意义。i-gel 1号尺寸在体位改变时不易移位。然而，由于这是对少数患者进行的初步研究，需要进一步试验才能得出任何明确结论。
