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Updated: May 28, 2026

International Expert Consensus and Recommendations for Neonatal Pneumothorax Ultrasound Diagnosis and Ultrasound-guided Thoracentesis Procedure
Published on: March 12, 2020
[Pneumomediastinum and subcutaneous emphysema complicating active labour]
Marie Bender Rugaard1, Kathrine Birch Petersen
1Gynækologisk og Obstetrisk Afdeling, Roskilde Sygehus, 4000 Roskilde, Denmark. mariebender@yahoo.dk
Abstract:
Subcutaneous emphysema and pneumomediastinum were first described by Hamman in 1945. Spontaneous pneumomediastinum is an uncommon, self-limiting condition caused by alveolar rupture and usually results from bronchial hyper-reactivity or barotraumas. We report a case describing a 25 year old patient in her first pregnancy, who during active labour developed subcutaneous emphysema and pneumomediastinum. Pneumomediastinum in labour is a rare complication to Valsalva maneuver, and it is diagnosed with a computed tomography. The most common symptoms are chest pain, dyspnea, neck pain and odynophagia.
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