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Published on: June 4, 2012
Destructive otomastoiditis by MRSA from porcine origin
Helen Van Hoecke1, Anne Piette, Els De Leenheer
1Department of Otorhinolaryngology, Ghent University Hospital, Ghent, Belgium. helen.vanhoecke@ugent.be
The Laryngoscope
|January 2, 2009
Summary
A pig farmer developed a severe ear infection with bone destruction and brain fluid leak. The infection was caused by a rare, pig-specific methicillin-resistant Staphylococcus aureus (MRSA).
Area of Science:
- Otolaryngology
- Infectious Diseases
- Zoonotic Infections
Background:
- Protracted otomastoiditis can lead to severe complications, including dural defects and cerebrospinal fluid (CSF) leakage.
- Methicillin-resistant Staphylococcus aureus (MRSA) is a significant pathogen, with increasing reports of community-acquired strains.
- Zoonotic transmission of pathogens from animals to humans poses a public health concern.
Purpose of the Study:
- To report a rare case of complicated otomastoiditis caused by a specific type of MRSA originating from pigs.
- To highlight the potential for zoonotic transmission of pig-associated MRSA in human infections.
- To emphasize the importance of considering animal-to-human pathogen transmission in clinical diagnostics.
Main Methods:
- A 63-year-old female pig farmer presented with otomastoiditis, tympanic roof destruction, and CSF leakage.
- Surgical intervention included a cortical mastoidectomy and closure of a dural defect.
- Cultures of middle ear effusion were analyzed to identify the causative pathogen and its origin.
Main Results:
- The causative agent was identified as methicillin-resistant Staphylococcus aureus (MRSA).
- Further analysis confirmed the MRSA strain to be of porcine origin.
- The patient underwent surgical management for the otomastoiditis and dural defect.
Conclusions:
- This case represents the first reported instance of complicated otomastoiditis due to a pig-type MRSA.
- Zoonotic transmission of MRSA from pigs to humans can result in severe clinical manifestations.
- Clinicians should consider animal contact history in cases of unusual or resistant infections.
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