Gaur Yashshwani, Jaju Rishabh, Paliwal Naveen, Choudhary Usha, Bihani Pooja, Janweja Sarita
Department of Anaesthesiology, S. N. Medical College, Jodhpur, Rajasthan, India.
Department of Anaesthesiology, AIIMS, Deogarh, Jharkhand, India.
Indian J Anaesth. 2023 May;67(5):420-425. doi: 10.4103/ija.ija_286_22. Epub 2023 May 11.
Supraglottic airway (SGA) devices are a boon to paediatric airway management. The clinical performances of the BlockBuster laryngeal mask airway (LMA) and Ambu® AuraGain™ in preschool children were compared in this study.
After ethical approval and trial registration, this randomised controlled study was conducted on 50 children, aged 1-4 years, randomised into two groups. Appropriate sized Ambu® AuraGain™ (group A) and LMA BlockBuster (group B) were placed as per the manufacturer's recommendation under general anaesthesia. Appropriate size of the endotracheal tube was then chosen and inserted through the device. Primary objective of the study was to compare the oropharyngeal seal pressure (OSP), and secondary objectives were the first attempt intubation success rate, overall intubation success rate, SGA insertion time, intubation time, haemodynamic changes and postoperative pharyngolaryngeal complications. The Chi-square test was used to analyse the categorical variables, while the intragroup comparison of mean changes in outcomes was evaluated by the unpaired -test. The level of significance was set at < 0.05.
Demographic parameters were uniformly distributed in both the groups. The mean OSP in group A was 26.6 ± 0.95 cm HO and in group B was 29.08 ± 0.75 cm HO. Both the devices were successfully inserted in all the patients. The success rate of blind endotracheal intubation through the device in first attempt was 4% in group A and 80% in group B. Postoperative pharyngolaryngeal complications were relatively less in group B.
LMA BlockBuster provides higher OSP and provides a higher success rate of blind endotracheal intubation in paediatric patients.
声门上气道（SGA）装置对小儿气道管理大有裨益。本研究比较了BlockBuster喉罩气道（LMA）和Ambu® AuraGain™在学龄前儿童中的临床性能。
经伦理批准和试验注册后，对50名1至4岁的儿童进行了这项随机对照研究，将其随机分为两组。在全身麻醉下，按照制造商的建议放置合适尺寸的Ambu® AuraGain™（A组）和LMA BlockBuster（B组）。然后选择合适尺寸的气管内导管并通过该装置插入。本研究的主要目的是比较口咽密封压（OSP），次要目的是首次尝试插管成功率、总体插管成功率、SGA插入时间、插管时间、血流动力学变化和术后咽喉并发症。采用卡方检验分析分类变量，而结局平均变化的组内比较则通过不成对t检验进行评估。显著性水平设定为P < 0.05。
两组的人口统计学参数分布均匀。A组的平均OSP为26.6±0.95 cm H₂O，B组为29.08±0.75 cm H₂O。所有患者均成功插入了两种装置。A组首次通过该装置进行盲视气管插管的成功率为4%，B组为80%。B组术后咽喉并发症相对较少。
BlockBuster喉罩气道在小儿患者中提供了更高的口咽密封压，并提供了更高的盲视气管插管成功率。
