What are causes of secondary spontaneous pneumomediastinum (PM)?

Updated: Feb 26, 2019
  • Author: Patrick L Carolan, MD; Chief Editor: Girish D Sharma, MD, FCCP, FAAP  more...
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Answer

In a study of 87 patients by Wong et al, the common causes of secondary spontaneous pneumomediastinum included asthmatic exacerbation, infections (eg, pneumonia, lower respiratory tract infections), and choking. [5]


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