What Researchers Did
Researchers retrospectively reviewed the clinical and microbiological records of 17 patients with Streptococcus milleri group head and neck infections at a Japanese hospital between 2001 and 2002.
What They Found
Among 17 patients (12 males, 5 females; median age 62 years) with head and neck infections caused by Streptococcus milleri group (SMG), the most common infection sites were the maxillary sinus (n=6) and peritonsillar region (n=4). Suppurative diseases were observed in 10 cases (59%), and 6 cases (35%) involved mixed SMG with anaerobic infections. All three cases with deteriorating clinical courses were positive for both SMG and anaerobes.
What This Means for Canadian Patients
Canadian patients presenting with head and neck infections, especially those with abscess formation, should be evaluated for Streptococcus milleri group (SMG) as a potential pathogen. Awareness of SMG, particularly in mixed infections with anaerobes, can help guide appropriate antimicrobial treatment and improve outcomes for these aggressive infections.
Canadian Relevance
This study was conducted in Japan and has no direct Canadian connection.
Study Limitations
As a retrospective study with a small sample size from a single institution, the generalizability of these findings may be limited.