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Spontaneous pneumomediastinum: A comprehensive review of diagnosis and management.

Intractable Rare Dis Res

August 2024

Division of Pulmonary, Critical Care and Sleep Medicine, Northwell Health, New Hyde Park, NY, USA.

Pneumomediastinum is a rare condition defined by the presence of air in the mediastinum. In the absence of traumatic injury, iatrogenic injury, or clear etiology, it is called spontaneous pneumomediastinum (SPM). Spontaneous pneumomediastinum most commonly occurs in younger individuals and has a self-limiting course with a good outcome.

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Spontaneous pneumomediastinum (SPM) is a rare but potentially life-threatening clinical entity in which free air is introduced into the mediastinum. It most commonly presents in young males and has an incidence of approximately 0.002% of the general population.

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BACKGROUND Spontaneous pneumomediastinum and subcutaneous emphysema (Hamman's syndrome) presents with sudden and life-threatening symptoms. Clinical signs include crackles that synchronize with the heartbeat on chest auscultation (Hamman's sign). This report describes the case of a 29-year-old woman with a protracted second stage of labor at 40 weeks of pregnancy with postpartum dyspnea, acute chest pain, and surgical emphysema due to pneumomediastinum (Hamman's syndrome).

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Hamman's syndrome - with audio file recording Hamman's sign.

BMJ Case Rep

October 2023

Pulmonary Medicine, KS Hegde Medical Academy, Mangaluru, Karnataka, India.

A boy in his late adolescence, with no history of airway disease or medication use, presented with acute history of non-exertional chest pain increased on coughing and deep inspiration accompanied by dysphonia and odynophagia in the last 1 day. He had a notable history of viral fever with non-productive cough 2 weeks prior, which resolved spontaneously. Examination revealed stable haemodynamic parameters.

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