Effectiveness and risks of permissive hypotension in trauma patients: a systematic review

Authors

  • Amilkar Suárez Pupo
  • Henry Paul Crespo González
  • María Cecibel Vera Márquez
  • Juan Arturo Rodríguez Sacoto
  • Sheyla Steffania Rodríguez Albán

Keywords:

permissive hypotension, hemorrhagic trauma, restrictive resuscitation, tranexamic acid, coagulopathy.

Abstract

Introduction: Permissive hypotension limits blood pressure and fluid volume in hemorrhagic trauma patients to prevent dilutional coagulopathy and complications such as acute respiratory distress syndrome (ARDS) or acute kidney injury (AKI).

Objective: To evaluate the effectiveness and possible risks of permissive hypotension, focusing on outcomes like mortality, AKI, and respiratory or hemostatic complications.

Methods: A qualitative systematic review (2015–present) was conducted in PubMed, EMBASE, Web of Science, Cochrane Library, and SciELO. Studies comparing permissive hypotension with conventional resuscitation protocols were included. Two independent reviewers selected and assessed article quality (Cochrane, Newcastle-Ottawa).

Results: Some trials revealed lower early mortality and reduced crystalloid volume without notably increasing AKI risk in specific scenarios. In burn cases or complex trauma, a higher likelihood of renal injury was reported. Early use of tranexamic acid and balanced transfusions enhanced the benefits of permissive hypotension.

Conclusions: Permissive hypotension helps limit fluid overload and improves early survival, yet it demands individualized targets based on injury type and timely hemorrhage control. Further research is needed to establish precise pressure goals, fluid volumes, and time frames that ensure renal safety and optimize clinical outcomes.

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Published

2025-05-21

How to Cite

1.
Suárez Pupo A, Crespo González HP, Vera Márquez MC, Rodríguez Sacoto JA, Rodríguez Albán SS. Effectiveness and risks of permissive hypotension in trauma patients: a systematic review. Rev Cubana Inv Bioméd [Internet]. 2025 May 21 [cited 2025 Jul. 19];44. Available from: https://revibiomedica.sld.cu/index.php/ibi/article/view/3837