title: Left Displacement of the Abomasum in 4 Beef Calves.
abstract: BACKGROUND
  Little is known about the occurrence rate, underlying etiology or treatment of left displacement of the abomasum in beef calves.
  
  
  OBJECTIVE
  Describe the clinical presentation, diagnosis and treatment of left displacement of the abomasum in 4 beef calves.
  
  
  METHODS
  Four client-owned beef breed calves with left displaced abomasum (LDA).
  
  
  METHODS
  Retrospective case series. Hospital medical records were reviewed to identify all beef breed cattle under the age of 6 months diagnosed with LDA.
  
  
  RESULTS
  Four beef calves were treated for left displacement of the abomasum. All four had a history of decreased appetite and left-sided abdominal distention. Two had recently been treated for necrotic laryngitis and one was being treated for clostridial abomasitis. Ultrasonography confirmed the abomasum to be displaced between the rumen and the left body wall in all calves. The calves were initially treated by rolling to correct the abomasal displacement. The abomasum redisplaced in 3 of 4 calves within 1 hour to 6 days; 1 calf developed a mesenteric volvulus. A right paramedian abomasopexy was performed in all cases. Three of 4 calves grew well and remained in the herd 6-18 months later; 1 calf was euthanized because of complications associated with necrotic laryngitis.
  
  
  CONCLUSIONS
  Left displacement of the abomasum should be considered as a differential diagnosis for beef calves with abdominal distention. Concurrent necrotic laryngitis can increase the risk of abomasal displacement in beef calves. Treatment should include surgical correction as rolling is not curative and might be associated with mesenteric volvulus.
authors.affiliation: Department of Clinical Sciences, Oklahoma State University, Stillwater, OK, 74078.
authors.forename: R E
authors.initials: RE
authors.lastname: Oman
authors.affiliation: Department of Clinical Sciences, Oklahoma State University, Stillwater, OK, 74078.
authors.forename: R N
authors.initials: RN
authors.lastname: Streeter
authors.affiliation: Department of Clinical Sciences, Kansas State University College of Veterinary Medicine, Manhattan, KS, 66506.
authors.forename: E J
authors.initials: EJ
authors.lastname: Reppert
authors.affiliation: College of Veterinary Medicine, Midwestern University, Glendale, AZ, 85308.
authors.forename: C Z
authors.initials: CZ
authors.lastname: Chako
mesh_terms: D000018:Abomasum / Q000473:pathology*; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000175:diagnosis* / Q000628:therapy; D013272:Stomach Diseases / Q000175:diagnosis / Q000628:therapy / Q000662:veterinary*
keywords: Bovine; Calf; Gastrointestinal; Left displaced abomasum