• A Campillo-Soto, A Coll-Salinas, V Soria-Aledo, A Blanco-Barrio, B Flores-Pastor, M Candel-Arenas, and J L Aguayo-Albasini.
• Servicio de Cirugía General y del Aparato Digestivo, Hospital General Universitario J.M. Morales Meseguer, Murcia, Spain.
• Arch. Bronconeumol. 2005 Sep 1;41(9):528-31.

AbstractSpontaneous pneumomediastinum is defined as a primary process characterized by the presence of air or gas in the mediastinum. We report all the cases of spontaneous pneumomediastinum diagnosed in our hospital between January 1996 and December 2004. We developed a protocol for data collection that included the following: medical history, triggers, signs, radiology, treatment, hospital stay, and complications. During this period we diagnosed 36 cases--25 men (69.4%) and 11 women (27.5%)--with a mean age of 36.8 years (range, 11-90 years) and a mean hospital stay of 8.56 days (range, 1-53 days). The most common clinical presentation was chest pain, either isolated (27%) or with associated dyspnea (19.4%). A triggering factor was identified for 14 patients (38.8%). There was no associated morbidity or mortality. In view of our findings, we concluded that spontaneous pneumomediastinum is an uncommon entity with considerable clinical variability and that correct diagnosis requires a high level of suspicion. Radiography provides the best evidence for diagnosis.

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