title: Bartonella spp. DNA in cardiac tissues from dogs in Colorado and Wyoming.
abstract: BACKGROUND
  Several Bartonella species (spp.) have been identified in dogs diagnosed with infectious endocarditis (IE) or myocarditis.
  
  
  OBJECTIVE
  To interrogate cardiac tissues of dogs with suspected IE for the presence of Bartonella spp. DNA of dogs in the Rocky Mountain states.
  
  
  METHODS
  Nine dogs with a clinical diagnosis of endocarditis from January 1990 to June 2008 were included.
  
  
  METHODS
  In this retrospective study, medical records at the Veterinary Teaching Hospital were searched. Animals were excluded if there was no diagnosis of IE in the original necropsy report. Paraffin embedded tissue blocks and medical records were available from 9 dogs. Total DNA was extracted from the cardiac tissues and assessed for Bartonella spp. DNA by 3 polymerase chain reaction (PCR) methods. For positive samples, the Bartonella spp. were determined by genetic sequencing or fluorogenic real-time PCR.
  
  
  RESULTS
  Bartonella henselae DNA was amplified from the tissues of 7 dogs; Bartonella vinsonii subsp berkhoffii DNA was amplified concurrently from 3 dogs. Six dogs were from Colorado and 1 was from Wyoming. Flea or tick infestations were reported in 2 dogs.
  
  
  CONCLUSIONS
  Bartonella spp. should be on the differential list for dogs in the Rocky Mountain states. The results emphasize the need for routine use of external parasite control products even in regions perceived to have low risk for flea and tick infestations.
authors.affiliation: Department of Clinical Sciences, Colorado State University, Fort Collins, CO 80523, USA. acfenimo@rams.colostate.edu
authors.forename: A
authors.initials: A
authors.lastname: Fenimore
authors.forename: M
authors.initials: M
authors.lastname: Varanat
authors.forename: R
authors.initials: R
authors.lastname: Maggi
authors.forename: P
authors.initials: P
authors.lastname: Schultheiss
authors.forename: E
authors.initials: E
authors.lastname: Breitschwerdt
authors.forename: M R
authors.initials: MR
authors.lastname: Lappin
mesh_terms: D000818:Animals; D001473:Bartonella / Q000235:genetics* / Q000302:isolation & purification; D001474:Bartonella Infections / Q000453:epidemiology / Q000662:veterinary*; D003120:Colorado / Q000453:epidemiology; D004269:DNA, Bacterial / Q000302:isolation & purification; D004283:Dog Diseases / Q000453:epidemiology / Q000382:microbiology*; D004285:Dogs; D004697:Endocarditis, Bacterial / Q000453:epidemiology / Q000382:microbiology / Q000662:veterinary*; D012189:Retrospective Studies; D014959:Wyoming / Q000453:epidemiology
chemical_list: D004269:DNA, Bacterial