External aortic compression has been investigated as a treatment for non-compressible truncal haemorrhage in trauma patients. We sought to systematically gather and tabulate the available evidence around external aortic compression. We were specifically interested in its ability to achieve hemostasis and aid in resuscitation of traumatic arrest and severe shock and to consider physiological changes and adverse effects. A scoping review approach was chosen due to the highly variable existing literature. We were guided by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses, using the specific extension for scoping reviews. Searches were done on PubMed and Scopus databases in October 2020. We found that a range of studies have investigated external aortic compression in a variety of settings, including case reports and small case series, porcine hemorrhage models and effects on healthy volunteers. External aortic compression for postpartum hemorrhage in a single center provided some evidence of effectiveness. Overall the level of evidence is limited, however, external aortic compression does appear able to achieve cessation of distal blood flow. Furthermore, it appears to improve many relevant physiological parameters in the setting of hypovolemic shock. Application for more than 60 minutes appears to cause increasingly problematic complications. In conclusion we find that the role of external aortic compression warrants further research. The intervention may have a role as a bridge to definitive treatment of noncompressible truncal haemorrahge.

外部主动脉压迫已被研究作为创伤患者不可压缩的躯干出血的治疗方法。我们试图系统地收集和列出围绕外部主动脉压迫的可用证据。我们对它实现止血和帮助复苏创伤性停搏和严重休克以及考虑生理变化和不良反应的能力特别感兴趣。由于现有文献的高度可变性，因此选择了范围审查方法。我们以系统评价和元分析的首选报告项目为指导，使用范围审查的特定扩展。2020 年 10 月对 PubMed 和 Scopus 数据库进行了搜索。我们发现，一系列研究调查了各种环境下的外主动脉压迫，包括病例报告和小型病例系列、猪出血模型和对健康志愿者的影响。单中心产后出血的外主动脉压迫提供了一些有效性证据。总体而言，证据水平有限，然而，外部主动脉压迫似乎确实能够实现远端血流的停止。此外，它似乎可以改善低血容量性休克的许多相关生理参数。超过 60 分钟的应用似乎会导致越来越严重的并发症。总之，我们发现外部主动脉压迫的作用值得进一步研究。干预可能起到明确治疗不可压缩躯干出血的桥梁作用。单中心产后出血的外主动脉压迫提供了一些有效性证据。总体而言，证据水平有限，然而，外部主动脉压迫似乎确实能够实现远端血流的停止。此外，它似乎可以改善低血容量性休克的许多相关生理参数。超过 60 分钟的应用似乎会导致越来越严重的并发症。总之，我们发现外部主动脉压迫的作用值得进一步研究。干预可能起到明确治疗不可压缩躯干出血的桥梁作用。单中心产后出血的外主动脉压迫提供了一些有效性证据。总体而言，证据水平有限，然而，外部主动脉压迫似乎确实能够实现远端血流的停止。此外，它似乎可以改善低血容量性休克的许多相关生理参数。超过 60 分钟的应用似乎会导致越来越严重的并发症。总之，我们发现外部主动脉压迫的作用值得进一步研究。干预可能起到明确治疗不可压缩躯干出血的桥梁作用。外部主动脉压迫似乎能够实现远端血流的停止。此外，它似乎可以改善低血容量性休克的许多相关生理参数。超过 60 分钟的应用似乎会导致越来越严重的并发症。总之，我们发现外部主动脉压迫的作用值得进一步研究。干预可能起到明确治疗不可压缩躯干出血的桥梁作用。外部主动脉压迫似乎能够实现远端血流的停止。此外，它似乎可以改善低血容量性休克的许多相关生理参数。超过 60 分钟的应用似乎会导致越来越严重的并发症。总之，我们发现外部主动脉压迫的作用值得进一步研究。干预可能起到明确治疗不可压缩躯干出血的桥梁作用。