title: [The importance of dental-based treatment shown on the case report of a pontine abscess caused by Streptococcus viridans].
abstract: BACKGROUND
  The treatment of infectious oral lesions is an important prophylactic procedure preceding immunsuppressive therapy. The case reported underlines the importance of this treatment by showing severe complications of an infective dental focus in an immunocompetent patient.
  
  
  METHODS
  A 65 year old patient was referred to hospital due to neurological disorders including hypaesthesia, movement deficits, nausea and falls. Because of progressive aggravation with hemiplegia a craniotomy and biopsy of a suspicious area in the pons was performed. A brain stem abscess caused by Streptococcus viridans was diagnosed. Brain stem abscesses are very rare events who contribute to only about 0.6%-6% of all intracranial abscesses. The intraoral inspection revealed a periodontally diseased and carious affected dentition with many missing teeth. Other foci were ruled out. Because of persistency of the symptoms another operation with abscess drainage was performed. Afterwards the clinical symptoms improved but hemiplegia was still present.
  
  
  CONCLUSIONS
  Even minor dental procedures as well as existence of a carious or periodontal disease may cause bacteremia with severe septical implications. Patients at risk (e.g. dieases of the heart valves or diabetes) should always treated with an antibiotic prophylaxis before treatment according to the guidelines of the DGZMK. All oro-pharyngeal infectious foci have to be treated sufficiently to prevent sceptical complications. Even more important is the prophylactic treatment preceding chemo- or radiation therapy.
authors.affiliation: Universitätsklinikum Regensburg, Klinik für Mund-, Kiefer- und Gesichtschirurgie, Franz-Josef-Strauss-Allee 11, 93053 Regensburg, Germany. urs.mueller-richter@klinik.uni-regensburg.de
authors.forename: U D A
authors.initials: UD
authors.lastname: Müller-Richter
authors.forename: S
authors.initials: S
authors.lastname: Bele
authors.forename: J C
authors.initials: JC
authors.lastname: Roldán
authors.forename: B
authors.initials: B
authors.lastname: Grün
authors.forename: O
authors.initials: O
authors.lastname: Driemel
authors.forename: A
authors.initials: A
authors.lastname: Brawanski
authors.forename: T E
authors.initials: TE
authors.lastname: Reichert
mesh_terms: D000368:Aged; D001922:Brain Abscess / Q000175:diagnosis* / Q000601:surgery; D002908:Chronic Disease; D003399:Craniotomy; D004245:DMF Index; D004292:Dominance, Cerebral / Q000502:physiology; D005260:Female; D006429:Hemiplegia / Q000209:etiology; D006801:Humans; D006849:Hydrocephalus / Q000175:diagnosis / Q000601:surgery; D006987:Hypesthesia / Q000209:etiology; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009894:Opportunistic Infections / Q000175:diagnosis* / Q000601:surgery; D010485:Periapical Periodontitis / Q000150:complications* / Q000175:diagnosis; D011149:Pons / Q000601:surgery; D011862:Radiography, Panoramic; D012086:Reoperation; D013290:Streptococcal Infections / Q000175:diagnosis* / Q000601:surgery*; D017287:Ventriculoperitoneal Shunt; D034363:Viridans Streptococci