title: Pulmonary artery dissection in eight dogs with patent ductus arteriosus.
abstract: OBJECTIVE
  To describe a series of dogs with pulmonary artery dissection and patent ductus arteriosus (PDA).
  
  
  METHODS
  Eight dogs.
  
  
  METHODS
  Retrospective case series.
  
  
  RESULTS
  Pulmonary artery dissection was diagnosed in 8 dogs, 3 were Weimaraners. Four dogs presented in left-sided congestive heart failure, 4 presented for murmur evaluation and without clinical signs, and 1 presented in right-sided congestive heart failure. In 7 dogs the dissection was first documented concurrent with a diagnosis of uncorrected PDA. In the other dog, with pulmonary valve stenosis and PDA, the dissection was observed on autopsy examination 17 months after balloon pulmonary valvuloplasty and ductal closure. Median age at presentation for the 7 dogs with antemortem diagnosis of pulmonary artery dissection was 3.5 years (range, 1.5-4 years). Three dogs had the PDA surgically ligated, 2 dogs did not undergo PDA closure, 1 dog failed transcatheter occlusion of the PDA with subsequent surgical ligation, 1 dog underwent successful transcatheter device occlusion of the PDA, and 1 dog had the PDA closed by transcatheter coil delivery 17 months prior to the diagnosis of pulmonary artery dissection. The 2 dogs that did not have the PDA closed died 1 and 3 years after diagnosis due to heart failure.
  
  
  CONCLUSIONS
  Pulmonary artery dissection is a potential complication of PDA in dogs, the Weimaraner breed may be at increased risk, presentation is often in mature dogs, and closure of the PDA can be performed and appears to improve outcome.
authors.affiliation: Department of Veterinary Clinical Sciences, The Ohio State University College of Veterinary Medicine, Columbus, OH, USA. Electronic address: scansen.2@osu.edu.
authors.forename: Brian A
authors.initials: BA
authors.lastname: Scansen
authors.affiliation: Department of Veterinary Clinical Sciences, The Ohio State University College of Veterinary Medicine, Columbus, OH, USA.
authors.forename: Elaine M
authors.initials: EM
authors.lastname: Simpson
authors.affiliation: Small Animal Teaching Hospital, School of Veterinary Science, University of Liverpool, Leahurst, Chester High Road, Neston, Cheshire, UK; Department of Clinical Science and Services, Royal Veterinary College, London, UK.
authors.forename: Jordi
authors.initials: J
authors.lastname: López-Alvarez
authors.affiliation: Veterinary Medical Teaching Hospital, School of Veterinary Medicine, University of California-Davis, Davis, CA, USA.
authors.forename: William P
authors.initials: WP
authors.lastname: Thomas
authors.affiliation: Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA.
authors.forename: Janice M
authors.initials: JM
authors.lastname: Bright
authors.affiliation: Department of Veterinary Clinical Sciences and the Veterinary Teaching Hospital, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA.
authors.forename: Bryan D
authors.initials: BD
authors.lastname: Eason
authors.affiliation: Department of Clinical Sciences, Cummings School of Veterinary Medicine at Tufts University, North Grafton, MA, USA.
authors.forename: John E
authors.initials: JE
authors.lastname: Rush
authors.affiliation: Small Animal Teaching Hospital, School of Veterinary Science, University of Liverpool, Leahurst, Chester High Road, Neston, Cheshire, UK.
authors.forename: Joanna
authors.initials: J
authors.lastname: Dukes-McEwan
authors.affiliation: Department of Veterinary Clinical Sciences and the Veterinary Teaching Hospital, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA.
authors.forename: Henry W
authors.initials: HW
authors.lastname: Green
authors.affiliation: Department of Clinical Sciences, Cummings School of Veterinary Medicine at Tufts University, North Grafton, MA, USA.
authors.forename: Suzanne M
authors.initials: SM
authors.lastname: Cunningham
authors.affiliation: Department of Veterinary Clinical Sciences, The Ohio State University College of Veterinary Medicine, Columbus, OH, USA.
authors.forename: Lance C
authors.initials: LC
authors.lastname: Visser
authors.affiliation: Department of Veterinary Clinical Sciences, The Ohio State University College of Veterinary Medicine, Columbus, OH, USA.
authors.forename: Agnieszka M
authors.initials: AM
authors.lastname: Kent
authors.affiliation: Department of Veterinary Clinical Sciences, The Ohio State University College of Veterinary Medicine, Columbus, OH, USA.
authors.forename: Karsten E
authors.initials: KE
authors.lastname: Schober
mesh_terms: D000784:Aortic Dissection / Q000150:complications / Q000175:diagnosis / Q000662:veterinary*; D000818:Animals; D021721:Balloon Occlusion / Q000662:veterinary; D006328:Cardiac Catheterization / Q000662:veterinary; D004283:Dog Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000628:therapy; D004285:Dogs; D004374:Ductus Arteriosus, Patent / Q000150:complications / Q000175:diagnosis / Q000662:veterinary*; D004452:Echocardiography / Q000662:veterinary; D005260:Female; D008297:Male; D011651:Pulmonary Artery / Q000473:pathology; D013902:Radiography, Thoracic / Q000662:veterinary; D012189:Retrospective Studies
keywords: Angiography; Canine; Congenital heart disease; Echocardiography