Uhm Dongchoon, Kim Ajung
Department of Emergency Medical Technology, Daejeon University, 62 Daehak-ro, Dong-gu, Daejeon 300-716, Korea.
Department of Emergency Medical Technology, Kyungil University, 50 Gamasil-gil, Hayang-eup 38428, Korea.
Healthcare (Basel). 2022 Jul 23;10(8):1365. doi: 10.3390/healthcare10081365.
Bag-valve-mask is a device that manually provides positive oxygen pressure. The grip technique of the character E and C shape is recommended to carry out this effectively. However, when applying this method, the hand in which the direction of the EC technique should be performed and the degree of adhesion pressure while performing the technique are unknown. This study aims to identify the factors influencing tidal volume and to determine the ideal sealing method between mask and face in the one-handed EC technique to optimize the Vt. A simulation study was conducted using a mechanical lung model in a scenario that resembled respiratory arrest. Multiple regression analyses identified high peak pressure, high left spot adhesion strength of the mask, and low right spot and bottom spot adhesion strength of the mask as significant factors. To provide an optimal Vt, it may be necessary to apply more strength to the left area of the mask when forming the "C" shape with the thumb and index finger of left hand using the one-handed EC technique.
袋阀面罩是一种手动提供正压氧气的设备。建议采用字母E和C形状的握持技巧来有效地操作该设备。然而，应用此方法时，进行EC技巧的手的方向以及操作该技巧时的贴合压力程度尚不清楚。本研究旨在确定影响潮气量的因素，并确定单手EC技巧中面罩与面部之间的理想密封方法，以优化潮气量。在模拟呼吸骤停的场景中，使用机械肺模型进行了一项模拟研究。多元回归分析确定，高峰压、面罩左点高贴合强度以及面罩右点和底点低贴合强度为显著因素。为了提供最佳潮气量，使用单手EC技巧用左手拇指和食指形成“C”形时，可能有必要对面罩左侧区域施加更大的力量。
