title: Tetralogy of Fallot in a 2-year-old Holstein heifer.
abstract: A 2-year-old, purebred Holstein heifer with exercise intolerance and cardiovascular compromise was diagnosed at postmortem with tetralogy of Fallot, which typically results in death within a few months of life. Survival past the age of 2 was unexpected. The concurrent endocarditis of the pulmonic valve is discussed.
authors.affiliation: Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, 550 University Drive, Charlottetown, Prince Edward Island C1A 4P3.
authors.forename: Shawn L B
authors.initials: SL
authors.lastname: McKenna
authors.forename: Herman W
authors.initials: HW
authors.lastname: Barkema
authors.forename: J T
authors.initials: JT
authors.lastname: McClure
authors.forename: Laura A
authors.initials: LA
authors.lastname: Rogers
mesh_terms: D000818:Animals; D002417:Cattle / Q000002:abnormalities*; D002418:Cattle Diseases / Q000175:diagnosis / Q000209:etiology; D004696:Endocarditis / Q000209:etiology / Q000662:veterinary; D017809:Fatal Outcome; D005260:Female; D011379:Prognosis; D011664:Pulmonary Valve; D013771:Tetralogy of Fallot / Q000150:complications / Q000175:diagnosis / Q000662:veterinary*