title: Bacteriology of deep neck infections: analysis of 634 patients.
abstract: BACKGROUND
  The aim of this study was to review the bacteriology of deep neck infections (DNI) and identify the factors that influence the incidence of causative bacteria.
  
  
  METHODS
  A retrospective analysis of 634 patients with DNI was performed. Statistical analysis was used to compare the incidence of common pathogens in various conditions such as age of the patients, aetiology and associated diabetes mellitus.
  
  
  RESULTS
  Bacteria were isolated in 514 cultures (81%). Aerobic bacteria were isolated from 246 cultures (39%) and anaerobic bacteria from 61 cultures (10%). Both aerobic and anaerobic bacteria were isolated from 207 cultures (32%). The most common aerobic bacteria were Streptococcus pyogenes (41%) and Staphylococcus aureus (32%). The most common anaerobic bacteria were Peptostreptococcus species (28%), followed by Prevotela species (8%) and Proprionibacterium species (7%). The incidence of anaerobic bacteria was higher in adults, in patients with infections of dental origin and in non-diabetic patients.
  
  
  CONCLUSIONS
  The bacteriology of DNI is polymicrobial, including both aerobic and anaerobic bacteria. The incidence of anaerobic bacteria is higher in adults, in patients with infections of dental origin and in non-diabetic patients.
authors.affiliation: Department of Otorhinolaryngology and Head and Neck Surgery, University Hospital Hradec Kralove, Charles University in Prague, Faculty of Medicine in Hradec Kralove, Czech Republic.
authors.forename: P
authors.initials: P
authors.lastname: Celakovsky
authors.affiliation: Department of Otorhinolaryngology and Head and Neck Surgery, University Hospital Hradec Kralove, Charles University in Prague, Faculty of Medicine in Hradec Kralove, Czech Republic.
authors.forename: D
authors.initials: D
authors.lastname: Kalfert
authors.affiliation: Department of Otorhinolaryngology and Head and Neck Surgery, University Hospital Hradec Kralove, Charles University in Prague, Faculty of Medicine in Hradec Kralove, Czech Republic.
authors.forename: K
authors.initials: K
authors.lastname: Smatanova
authors.affiliation: Department of Dentistry, University Hospital Hradec Kralove, Charles University in Prague, Faculty of Medicine in Hradec Kralove, Czech Republic.
authors.forename: L
authors.initials: L
authors.lastname: Tucek
authors.affiliation: Department of Computed Technology, Charles University in Prague, Faculty of Medicine in Hradec Kralove, Czech Republic.
authors.forename: E
authors.initials: E
authors.lastname: Cermakova
authors.affiliation: Department of Otorhinolaryngology and Head and Neck Surgery, University Hospital Hradec Kralove, Charles University in Prague, Faculty of Medicine in Hradec Kralove, Czech Republic.
authors.forename: J
authors.initials: J
authors.lastname: Mejzlik
authors.affiliation: Department of Otorhinolaryngology and Head and Neck Surgery, Regional Hospital Pardubice, Faculty of Health Studies, University of Pardubice, Czech Republic.
authors.forename: M
authors.initials: M
authors.lastname: Kotulek
authors.affiliation: Department of Oral and Maxillofacial Surgery, Regional Hospital Pardubice, Faculty of Health Studies, University of Pardubice, Czech Republic.
authors.forename: A
authors.initials: A
authors.lastname: Vrbacky
authors.affiliation: Department of Otorhinolaryngology, University Hospital Ostrava, Faculty of Medicine Ostrava, Czech Republic.
authors.forename: P
authors.initials: P
authors.lastname: Matousek
authors.affiliation: Department of Otorhinolaryngology, University Hospital Ostrava, Faculty of Medicine Ostrava, Czech Republic.
authors.forename: L
authors.initials: L
authors.lastname: Stanikova
authors.affiliation: Department of Oral and Maxillofacial Surgery, University Hospital Ostrava, Czech Republic.
authors.forename: T
authors.initials: T
authors.lastname: Hoskova
mesh_terms: D000038:Abscess / Q000453:epidemiology* / Q000382:microbiology / Q000517:prevention & control; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D001420:Bacteria, Aerobic / Q000302:isolation & purification; D001421:Bacteria, Anaerobic / Q000302:isolation & purification; D002648:Child; D002675:Child, Preschool; D018153:Czech Republic / Q000453:epidemiology; D003920:Diabetes Mellitus; D005260:Female; D006801:Humans; D015994:Incidence; D007223:Infant; D008297:Male; D008875:Middle Aged; D009333:Neck; D012189:Retrospective Studies; D012307:Risk Factors; D013203:Staphylococcal Infections / Q000453:epidemiology / Q000382:microbiology / Q000517:prevention & control; D013211:Staphylococcus aureus / Q000302:isolation & purification*; D013290:Streptococcal Infections / Q000453:epidemiology / Q000382:microbiology / Q000517:prevention & control; D013297:Streptococcus pyogenes / Q000302:isolation & purification*; D055815:Young Adult
keywords: Aetiology; bacteriology; deep neck infections; dental infection; treatment