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• Vol.53 No.9
• CLINICA NEUROL, 53: 732−735, 2013
• Vol.53 No.9 contents

Brief Clinical Note

Bilateral sensorineural hearing impairment due to Streptococcus suis meningitis 20 days after swine bite

Kousuke Mori, M.D.¹⁾, Nobuyuki Ishii, M.D.¹⁾, Hitoshi Mochizuki, M.D., Ph.D.¹⁾, Akitoshi Taniguchi, M.D.¹⁾, Kazutaka Shiomi, M.D., Ph.D.¹⁾ and Masamitsu Nakazato, M.D., Ph.D.¹⁾

¹⁾Division of Neurology, Respirology, Endocrinology and Metabolism, Department of Internal Medicine,Faculty of Medicine, University of Miyazaki

Streptococcus suis (S. suis) is a zoonotic pathogen in pigs, which can be transmitted to humans by close contact. Meningitis is the most common clinical manifestations of S. suis infection and hearing impairment is a frequent complication. The risk of S. suis meningitis is higher in people who work in the swine industry. The patient was a 53-year-old woman working in the swine industry, who developed headache and fever 20 days after a swine bite. She was diagnosed as meningitis and S. suis was detected in the cerebrospinal fluid. We treated her with ceftriaxone, vancomycin, and dexamethasone, and signs of meningeal irritation diminished three days after admission. However, bilateral sensorineural hearing impairment occurred on the ninth day after admission. We added methylprednisolone (500 mg, 2 days) but moderate hearing impairment remained on the left. Antibiotic therapy should be considered for wounds of people involved in the swine industry for preventing S. suis infection. When S. suis meningitis occurs, symptoms of hearing impairment must be monitored carefully.
Full Text of this Article in Japanese PDF (1975K)

(CLINICA NEUROL, 53: 732−735, 2013)
key words: Streptococcus suis, meningitis, hearing impairment, MRI

(Received: 19-Jan-13)