今回も菌血症についての文献です。
SRPによって生じる、歯周病原菌及びその他の歯肉縁下の
好気性・嫌気性菌の菌血症の発症頻度を調べています。
42名の重度慢性歯周病と侵襲性歯周炎の患者に対して
SRPを行っています。
The objective of this study was to evaluate the frequency of periodontopathic and other subgingival anaerobic and facultative bacteria in the bloodstream following scaling and root planing (SRP).
Forty-two patients with severe generalized chronic periodontitis (GChP) and generalized aggressive periodontitis (GAgP) were included in the study. Four samples of peripheric blood were drawn from the cubital vein at different times: Pre-treatment: immediately before the SRP procedure (T1), immediately after treatment (T2), 15 min. post-treatment (T3) and 30 min. post-treatment (T4). In order to identify the presence of microorganisms in blood, subcultures were conducted under anaerobic conditions.
80.9% of the patients presented positive cultures after SRP and it occurred more frequently immediately after treatment; however, 19% of the patients still had microorganisms in the bloodstream 30 min. after the procedure. The periodontopathic microorganisms more frequently identified were Porphyromonas gingivalis and Micromonas micros. Campylobacter spp., Eikenella corrodens, Tannerella forsythensis, Fusobacterium spp. and Prevotella intermedia were isolated less often. Actinomyces spp. were also found frequently during bacteraemia after SRP.
SRP induced bacteraemia associated with anaerobic bacteria, especially in patients with periodontal disease.
SRP直後では80.9％の患者の血中から細菌が検出され
30分後でも19％の患者から細菌が検出されました。
そして、最も頻繁に検出されたのはP.g.菌とMicromonas micros
でした。
結論として、歯周炎患者のSRPは
菌血症を生じるリスクがある、ということです。
引用文献
Lafaurie GI1, Mayorga-Fayad I, Torres MF, Castillo DM, Aya MR, Barón A, Hurtado PA.
Periodontopathic microorganisms in peripheric blood after scaling and root planing.
J Clin Periodontol. 2007 Oct;34(10):873-9.