Pneumomediastinum: Experience with 87 Patients
Dimitrios E Magouliotis1, Ioanna Sgantzou2, Nikolaos S Salemis3
1Department of Cardiothoracic Surgery, University of Thessaly, Larissa, Greece.
Acta Medica Academica
|November 7, 2023
Summary
Spontaneous pneumomediastinum (SPM) has a good prognosis and low mortality. Differentiating SPM from secondary causes is crucial due to the latter's potential for severe outcomes.
Area of Science:
- Thoracic Surgery
- Pulmonology
- Emergency Medicine
Background:
- Spontaneous pneumomediastinum (SPM) is a rare condition characterized by air in the mediastinum without an obvious precipitating event.
- Accurate differentiation between SPM and secondary causes of pneumomediastinum (PM) is essential for appropriate patient management and outcomes.
Purpose of the Study:
- To present clinical experience with 37 patients diagnosed with spontaneous pneumomediastinum.
- To highlight the importance of distinguishing true SPM from secondary PM, as current definitions may be inadequate.
Main Methods:
- A retrospective, single-center study analyzing 87 adult patients with pneumomediastinum (PM) between January 2009 and March 2020.
- Data collected included demographics, symptoms, physical signs, treatments administered, length of hospital stay (LOS), and in-hospital mortality.
Main Results:
- Of 87 PM cases, 37 were spontaneous (SPM) and 50 were secondary.
- Secondary PM patients had higher rates of pneumothorax (58% vs. 19%), chest tube placement (58% vs. 18.9%), pleural effusion (18% vs. 0%), and subcutaneous emphysema (74% vs. 49%).
- Secondary PM was associated with longer LOS (5.3 vs. 3.9 days) and higher mortality (10% vs. 0%).
Conclusions:
- Spontaneous pneumomediastinum is a clinically significant condition with a favorable prognosis, characterized by low mortality and short hospital stays.
- Common symptoms include chest pain, dyspnea, and subcutaneous emphysema.
- Promptly ruling out secondary causes of mediastinal air is critical due to their potentially severe consequences.
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