Otitis externa maligna: Difference between revisions
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It is an infection of the external auditory canal caused by gram-negative Pseudomonas aeruginosa in elderly and diabetic (90%) or otherwise immunosuppressed patients. Inflammation can spread to the mastoid process ( | It is an infection of the external auditory canal caused by gram-negative ''[[wikiskripta:Pseudomonas_aeruginosa|Pseudomonas aeruginosa]]'' in elderly and diabetic (90%) or otherwise immunosuppressed patients. [[wikiskripta:Zánět|Inflammation]] can spread to the mastoid process (''[[wikiskripta:Lebeční_kosti|procesus mastoideus]]'') with mastoiditis and further intracranially. Complications include obstruction of the external auditory canal or damage to the cranial nerves (V – XII). However, some sources define otitis externa maligna by spreading external pseudomonas otitis into the mastoid process. The mortality rate for such infections is then up to 20%. | ||
=== Clinical manifestations === | === Clinical manifestations === | ||
* severe pain in the area | * severe pain in the area | ||
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== Links == | == Links == | ||
[[wikiskripta:Záněty_zevního_ucha|Inflammation of the outer ear]] | |||
=== Sources === | === Sources === | ||
* BENEŠ, Jiří, et al. ''Infekční lékařství. ''1. vydání. Galén, 2009. 651 s. <nowiki>ISBN 978-80-7262-644-1</nowiki>. | * BENEŠ, Jiří, et al. ''Infekční lékařství. ''1. vydání. Galén, 2009. 651 s. <nowiki>ISBN 978-80-7262-644-1</nowiki>. | ||
* eMedicine – Malignant Otitis Externa | * eMedicine – Malignant Otitis Externa | ||
Revision as of 12:34, 12 February 2022
It is an infection of the external auditory canal caused by gram-negative Pseudomonas aeruginosa in elderly and diabetic (90%) or otherwise immunosuppressed patients. Inflammation can spread to the mastoid process (procesus mastoideus) with mastoiditis and further intracranially. Complications include obstruction of the external auditory canal or damage to the cranial nerves (V – XII). However, some sources define otitis externa maligna by spreading external pseudomonas otitis into the mastoid process. The mortality rate for such infections is then up to 20%.
Clinical manifestations
- severe pain in the area
- purulent discharge from the ear canal
- neurological symptoms in case of intracranial infection.
Links
Sources
- BENEŠ, Jiří, et al. Infekční lékařství. 1. vydání. Galén, 2009. 651 s. ISBN 978-80-7262-644-1.
- eMedicine – Malignant Otitis Externa
