title: Use of colonic luminal pressure to predict outcome after surgical treatment of strangulating large colon volvulus in horses.
abstract: OBJECTIVE
  To evaluate the relationship of colonic luminal pressure (CLP) measurements to outcome in horses with large colon volvulus (LCV) after either manual correction or large colon resection and anastomosis (LCRA).
  
  
  METHODS
  Retrospective study.
  
  
  METHODS
  Horses (n=57) that had LCV.
  
  
  METHODS
  Records for horses with LCV (March 1997-December 2003) were reviewed. Inclusion criteria were strangulating LCV proximal to the cecocolic ligament (>270 degrees), recorded CLP, and successful recovery from anesthesia. CLP measurements and survival/mortality rates were compared between horses that had manual correction (M) or LCRA (R).
  
  
  RESULTS
  Of 57 horses, 27 had M and 30 had LCRA. For group M, CLP measurements had a sensitivity of 0.60 and specificity of 0.77 for predicting survival, whereas for group R, sensitivity was 0.50 and specificity was 0.54.
  
  
  CONCLUSIONS
  In our LCV population, elevated CLP measurements had poor accuracy for predicting outcome in horses after surgical correction, especially after LCRA.
  
  
  CONCLUSIONS
  CLP measurements based on a single hospital population of horses with LCV should be used with caution for other hospital populations of LCV. CLP may be only one of many variables needed for predicting outcome of horses with strangulating LCV, especially after LCRA.
authors.affiliation: Peterson and Smith Equine Hospital, Ocala, FL 34474, USA. scmathis01@yahoo.com
authors.forename: Stephanie C
authors.initials: SC
authors.lastname: Mathis
authors.forename: Donnie E
authors.initials: DE
authors.lastname: Slone
authors.forename: Timothy M
authors.initials: TM
authors.lastname: Lynch
authors.forename: Faith E
authors.initials: FE
authors.lastname: Hughes
authors.forename: Carol K
authors.initials: CK
authors.lastname: Clark
mesh_terms: D000818:Animals; D003106:Colon / Q000503:physiopathology*; D003108:Colonic Diseases / Q000601:surgery / Q000662:veterinary*; D005260:Female; D005431:Florida / Q000453:epidemiology; D006734:Horse Diseases / Q000401:mortality / Q000473:pathology / Q000601:surgery*; D006736:Horses; D045822:Intestinal Volvulus / Q000601:surgery / Q000662:veterinary*; D008297:Male; D008365:Manometry / Q000662:veterinary*; D011183:Postoperative Complications / Q000662:veterinary; D011237:Predictive Value of Tests; D011312:Pressure; D011379:Prognosis; D012372:ROC Curve; D011996:Records / Q000662:veterinary; D012189:Retrospective Studies; D016019:Survival Analysis