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首页> 外文期刊>Emergency medicine journal: EMJ >Reduction of gastric inflation by use of a pressure relief valve connected to an acoustic expiration control device during mouth-to-mask ventilation of a manikin model of an unprotected airway
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Reduction of gastric inflation by use of a pressure relief valve connected to an acoustic expiration control device during mouth-to-mask ventilation of a manikin model of an unprotected airway

机译：通过使用压力泄压阀减小胃气膨胀，通过减压阀，该压力泄压阀连接到一个未受保护的气道的Manikin模型的口罩通风期间的声学到期控制装置

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摘要

Background: Gastric inflation is a significant issue when ventilation of the unprotected airway is performed. The purpose of this study was to evaluate a prototype pressure relief valve with an acoustic expiration control mechanism connected to two different masks. Methods: 12 non-physician healthcare professionals (group 1) and 10 newly certified dentists (group 2) performed 10 cycles of cardiopulmonary resuscitation on a manikin using this device compared with mouth-to-mouth technique. Dentists also employed a mask without the valve. Lower oesophageal sphincter pressures had been adjusted to 1.5 kPa (group 1) and 0.3 kPa (group 2); the valve relief pressure to 1.5 kPa (group 1) and 2.0 kPa (group 2). Results: In group 1 tidal volumes by valve mask techniques (medians 350 and 400 ml) differed minimally from mouth-to-mouth ventilation (medians 475 and 600 ml). Almost no gastric inflation was observed. Gastric inflation only occurred using the safety valve connected to the mask (median 122 ml) and the mask alone (median 260 ml) (p=0.004). Only in group 1 the acoustic device delivered adequate signals. Conclusion: Gastric inflation occurred less frequently and to a lesser extent when the valve was connected, going ahead with a trend towards lower tidal volumes. The protective effect of the safety valve may be of benefit even if it leads to smaller tidal volumes.
机译：背景：胃气通胀是在进行无保护的气道的通风时的重要问题。本研究的目的是评估原型减压阀，具有连接到两个不同的面罩的声学到期控制机构。方法：12个非医生医疗保健专业人员（第1组）和10次新认证的牙医（第2组）使用该装置在Manikin上进行了10个心肺复苏循环，使用该装置与口对口技术相比。牙医还使用没有阀门的面罩。较低的食管括约肌压力已调整为1.5kPa（第1组）和0.3kPa（第2组）;阀浮雕压力为1.5kPa（1）和2.0kPa（第2组）。结果：在第1组中，阀门掩模技术（中位数350和400毫升）在口腔通风（中位数475和600毫升）中最小值不同地​​不同。几乎没有观察到胃膨胀。仅使用连接到掩模（中值122mL）和单独的掩模（中值260mL）（P = 0.004）的安全阀发生胃膨胀。仅在第1组中，声学设备提供了足够的信号。结论：当阀门连接时，胃气通胀频率不太频繁，在较小程度上进行，前进趋于降低潮汐量。即使它导致较小的潮气量，安全阀的保护效果也可能是有益的。

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  • 来源
    《Emergency medicine journal: EMJ》 |2013年第5期|共6页
  • 作者

    MutzbauerE.E.; WeissM.; MutzbauerT.S.;

  • 作者单位

    Department of Dental Anesthesiology Mutzbauer and Partner Maxillofacial Surgery Tiefenhoefe 11;

    Department of Anesthesiology University of Ulm Ulm Germany;

    Department of Dental Anesthesiology Mutzbauer and Partner Maxillofacial Surgery Tiefenhoefe 11;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 治疗学;
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