A review of medical literature shows comparatively few cases of invasion of the mediastinal space by air incident to acute obstructive laryngitis. Pneumopericardium has never been so demonstrated. The following cases are therefore presented to the attention of otolaryngologists to indicate the relatively frequent occurrence of these previously held rare conditions. Although the complications in these instances were transitory and all patients recovered, the occurrence of these conditions in the field of otolaryngology was deemed sufficiently important to warrant comment.
All cases studied were encountered in the routine treatment of patients admitted to the croup service of Willard Parker Hospital. Being obstructive infections of the upper part of the respiratory tract, the conditions were brought to the attention of the visiting otolaryngologists. All conditions were identified as nonspecific infectious croup; none were of diphtheritic origin. Of 20 tracheotomized patients observed during the past year, 4 have shown the presence of
GRAEBNER H. PNEUMOPERICARDIUM AND PNEUMOMEDIASTINUM IN CASES OF ACUTE OBSTRUCTIVE LARYNGITIS. Arch Otolaryngol. 1939;29(3):446–456. doi:10.1001/archotol.1939.00650050480005
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