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Vertebral osteomyelitis caused by Streptococcus agalactiae.
J Solís-Garcia del Pozo1, E Martinez-Alfaro, L Abad
1Department of Internal Medicine, Unit of Infectious Diseases, Albacete General Hospital, Spain.
The Journal of Infection
|August 16, 2000
Summary
Streptococcus agalactiae is a rare cause of vertebral osteomyelitis. This study reviewed 24 cases, finding that while older adults with diabetes or neoplasms are most affected, diagnosis via MRI and 6-week antibiotic treatment leads to favorable outcomes.
Area of Science:
- Infectious Diseases
- Orthopedics
- Microbiology
Background:
- Vertebral osteomyelitis is typically caused by other bacteria.
- Streptococcus agalactiae (Group B Streptococcus) is an uncommon pathogen for this condition.
Observation:
- This study presents four new cases and reviews 20 previously reported cases of vertebral osteomyelitis caused by Streptococcus agalactiae.
- The majority of patients (71%) were over 50 years old.
- Common predisposing factors included diabetes mellitus and neoplasms, though a significant portion had no identifiable risk factors.
Findings:
- Neck or back pain was the most frequent presenting symptom.
- Magnetic resonance imaging (MRI) was the primary diagnostic tool.
- Blood cultures yielded positive results in 50% of cases.
- A standard treatment duration of 6 weeks of antibiotics was generally employed.
Implications:
- Highlights Streptococcus agalactiae as a potential, albeit rare, cause of vertebral osteomyelitis.
- Emphasizes the importance of considering less common pathogens in spinal infections.
- Suggests MRI is crucial for diagnosis and that standard antibiotic protocols are effective, leading to good patient outcomes without significant sequelae.