American Journal of Medical Case Reports
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American Journal of Medical Case Reports. 2020, 8(12), 512-514
DOI: 10.12691/ajmcr-8-12-22
Open AccessCase Report

Pneumomediastinum after Convulsion and Vomiting

Ken-ichi Muramatsu1, Kazuhiko Omori1, Hiroki Nagasawa1, Ikuto Takeuchi1, Kei Jitsuiki1, Yasumasa Oode1 and Youichi Yanagawa1,

1Department of Acute Critical Care Medicine, Shizuoka hospital, Juntendo University

Pub. Date: September 25, 2020

Cite this paper:
Ken-ichi Muramatsu, Kazuhiko Omori, Hiroki Nagasawa, Ikuto Takeuchi, Kei Jitsuiki, Yasumasa Oode and Youichi Yanagawa. Pneumomediastinum after Convulsion and Vomiting. American Journal of Medical Case Reports. 2020; 8(12):512-514. doi: 10.12691/ajmcr-8-12-22


A 15-year-old woman had a vomiting following 10 minutes of clonic convulsion after intentional overdose of cold remedy. When emergency medical technicians checked her, convulsion had subsided, however, she had a convulsion again during transportation. On arrival, she was coma state but had clear airway. Her head computed tomography (CT) was negative, however, chest roentgen and CT showed spontaneous pneumomediastinum (SPM). Initially, physician on duty did not know that she had had overdose, she just underwent infusion of evetiracetam and tazobactam / piperacillin. Her consciousness became clear on day 2. Post admission course was no eventful and she discharged without sequlae. We present extremely rare case of SPM immediately after a convulsion. As mechanism of such complication is poorly understood, further analysis by accumulation of such cases is necessary.

convulsion pneumomediastinum mechanism

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