Document Type


Publication Date



This article is the author's final published version in Clinical Practice and Cases in Emergency Medicine, Volume 7, Issue 4, November 2023, Pg. 337 - 241.

The published version is available at Copyright © 2023 Daecher et al.


Introduction: Pneumomediastinum is a rare complication of blunt traumatic injury and is thought to be due to the Macklin effect, a pathophysiologic process comprised of three steps: alveolar rupture secondary to blunt injury; air dissecting along bronchovascular sheaths; and spread of pulmonary interstitial edema into the mediastinal space. Pneumomediastinum is rarely associated with pneumoretroperitoneum.

Case Report: We present a case of a patient who suffered a cardiac arrest after a fall during a chronic obstructive pulmonary disease exacerbation, leading to pneumoretroperitoneum.

Conclusion: This case highlights the complications that can arise from blunt trauma and how underlying lung pathology can worsen these complications.

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.