Department of Anaesthesia, University of Copenhagen, Herlev Hospital, Herlev Ringvej 7, DK-2730 Herlev, Denmark.
BMC Anesthesiol. 2010 Dec 3;10:20. doi: 10.1186/1471-2253-10-20.
To prevent endothelium and nerve lesions, tracheal tube and laryngeal mask cuff pressure is to be maintained at a low level and yet be high enough to secure air sealing.
In a prospective quality-control study, 201 patients undergoing surgery during anaesthesia (without the use of nitrous oxide) were included for determination of the cuff pressure of the tracheal tubes and laryngeal masks.
In the 119 patients provided with a tracheal tube, the median cuff pressure was 30 (range 8 - 100) cm H2O and the pressure exceeded 30 cm H2O (upper recommended level) for 54 patients. In the 82 patients provided with a laryngeal mask, the cuff pressure was 95 (10 - 121) cm H2O and above 60 cm H2O (upper recommended level) for 56 patients and in 34 of these patients, the pressure exceeded the upper cuff gauge limit (120 cm H2O). There was no association between cuff pressure and age, body mass index, type of surgery, or time from induction of anaesthesia to the time the cuff pressure was measured.
For maintenance of epithelia flow and nerve function and at the same time secure air sealing, this evaluation indicates that the cuff pressure needs to be checked as part of the procedures involved in induction of anaesthesia and eventually checked during surgery.
为了防止内皮和神经损伤，气管导管和喉罩套囊的压力需要维持在较低水平，但又要足够高以确保密封。
在一项前瞻性质量控制研究中，纳入了 201 名接受麻醉下手术的患者，以确定气管导管和喉罩的套囊压力。
在 119 名接受气管导管的患者中，套囊压力中位数为 30（8-100）cmH2O，54 名患者的压力超过 30cmH2O（推荐上限）。在 82 名接受喉罩的患者中，套囊压力为 95（10-121）cmH2O，56 名患者的压力超过 60cmH2O（推荐上限），其中 34 名患者的压力超过套囊压力上限（120cmH2O）。套囊压力与年龄、体重指数、手术类型或从麻醉诱导到测量套囊压力的时间之间无相关性。
为了维持上皮层血流和神经功能，同时确保密封，这项评估表明，套囊压力需要作为麻醉诱导程序的一部分进行检查，并最终在手术期间进行检查。
