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  • Title: Microbiology of odontogenic infections in deep neck spaces: a retrospective study.
    Author: Al-Qamachi LH, Aga H, McMahon J, Leanord A, Hammersley N.
    Journal: Br J Oral Maxillofac Surg; 2010 Jan; 48(1):37-9. PubMed ID: 19178989.
    Abstract:
    The primary treatment of deep neck spaces odontogenic infection (DNSOI) with suppuration is surgery. Systemic antimicrobial therapy is an important adjunct. The initial prescription of antimicrobial therapy is empirical. Over the last decade we have observed a change in practice with the use of second-generation cephalosporins, in conjunction with metronidazole, replacing benzylpencillin and metronidazole. More recently evidence has emerged suggesting that antimicrobial resistance in nosocomial infections could be related to the widespread use of second and third-generation cephalosporins. This study was therefore initiated to determine whether this change in prescribing was justified. A total of 75 cases were retrospectively identified by scrutiny of the operating theatre data. These patients presented with significant DNSOI that required surgical drainage. Streptococcus milleri and mixed anaerobes were predominant. Only in three cases (4%) there were penicillin-resistant microorganisms. The substitution of benzylpenicillin for cefuroxime as an initial empiric therapy for DNSOI seems likely to have been equally efficacious in the large majority of cases. On the other hand, studies in preference of cephalosporins are based on in vitro trials. A multi-centre randomized controlled clinical trial directly comparing initial empiric second-generation cephalosporin therapy with benzylpenicillin in non-allergic patients is justified.
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