13-June-2008, 01:51 PM
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Senior Member
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Join Date: Jul 2005
Posts: 5,589
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Originally Posted by clop
Thanks Grant!
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Pleasure. Here is a review article on pneumoparotid you might like to read. It concentrates on patients who present with swelling of the salivary gland because of recurrent episodes.
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The diagnosis is considered rare, but it might not be as uncommon as previously reported. A review of the literature reveals reports of several etiologies. In 1865, Hyrtl first described this condition in musicians who were learning to play wind instruments. [5] Glassblowers are known to be predisposed to pneumoparotid, as well. [6] Following anesthesia, patients sometimes strain and cough during extubation while receiving positive pressure, which can cause air to insufflate into the parotid gland. [3] Injury during a dental procedure can occur when the dentist is working near the maxillary molars or when the angulation of instruments is improper. [7] Pneumoparotid has also been induced by nose blowing, [1] blowing up balloons, [6] chronic attempts to suppress cough, [8,9] and rapid decompression while scuba diving. [10] It can also be self-induced, and the literature contains an increasing number of reports involving pediatric and adolescent patients who induce parotid insufflation to avoid school or gain attention. [5,1,12]
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This might put you off doing it:
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Air rupturing through the parotid acini can extend to the parapharyngeal space and cause subcutaneous emphysema and airway obstruction. This can progress to involve the retropharyngeal space.
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(My bold)
Grant Hutchison
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