What are the complications of tension pneumomediastinum (PM)?

Updated: Feb 26, 2019
  • Author: Patrick L Carolan, MD; Chief Editor: Girish D Sharma, MD, FCCP, FAAP  more...
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Although rare, tension pneumomediastinum may occur, leading to compression of the great veins, compromising venous return, which may result in hypotension and hypoxemia secondary to ventilation/perfusion mismatch.

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