Ueno Megumi, Suzuki Akihiro, Takahata Osamu, Iwasaki Hiroshi
Department of Anesthesiology and Critical Care Medicine, Asahikawa Medical College, Asahikawa 078-8510.
Masui. 2008 Sep;57(9):1131-5.
The Laryngeal Tube Suction (LTS : Smith Medical, Tokyo) is a new laryngeal tube that has an additional channel for gastric tube placement. Similarly, the Proseal Laryngeal Mask Airway (PLMA) also has a drain tube for gastric tube placement. This study compared the functions of these two devices.
Forty patients undergoing general anesthesia were randomly allocated to the group LTS (n = 20) or group PLMA (n = 20). Ease of insertion, quality of airway seal, ease of gastric tube insertion, fiberoptic view of the glottis through each device after placement, and postoperative sorethroat/hoarseness were investigated.
There were no differences in patient characteristics and anesthetic background data for both groups. No differences concerning handling, quality of airway seal, ease of gastric tube insertion, and postoperative airway morbidity were detected between LTS and PLMA. In economical terms, LTS was more reasonable compared with PLMA.
With respect to clinical function, the LTS and PLMA were similar and either device can be used to establish an effective airway in anesthetized patients.
喉罩吸引器（LTS：东京史密斯医疗公司）是一种新型喉罩，具有用于放置胃管的额外通道。同样，食管引流型喉罩通气道（PLMA）也有用于放置胃管的引流管。本研究比较了这两种装置的功能。
40例接受全身麻醉的患者被随机分为LTS组（n = 20）或PLMA组（n = 20）。研究了插入的难易程度、气道密封质量、胃管插入的难易程度、放置后通过每种装置观察声门的纤维喉镜视野以及术后咽痛/声音嘶哑情况。
两组患者的特征和麻醉背景数据无差异。在LTS和PLMA之间，未检测到在操作、气道密封质量、胃管插入的难易程度和术后气道并发症方面的差异。在经济方面，与PLMA相比，LTS更合理。
就临床功能而言，LTS和PLMA相似，两种装置均可用于为麻醉患者建立有效的气道。
