Leukocyte Esterase Reagent Strips for Stall-Side Diagnosis of Endometritis in Mares

Dale E. Kelley, Maria R. Schnobrich, Stephany Gayer, Charles Scoggin, Etta Bradcamp, Igor F. Canisso

Research output: Contribution to journalReview articlepeer-review

Abstract

The objective of this study was to compare a commercially available leukocyte esterase strip test with endometrial cytology in diagnosing endometritis and establish a cutoff point, sensitivity, and specificity for the leukocyte esterase test (LET). Forty-six light breed mares presented for breeding management were enrolled in this study. Transrectal palpation and ultrasonography examinations were performed to determine when the mares were in estrus. Kalayjian endometrial swabs were used for culture, cytology, and the LET by using the cap to retrieve an endometrial scraping. Thirty-six mares had a negative LET. There was not a significant correlation between cytology results and culture results or between LET results and culture results. The correlation coefficient between LET and cytology was r = 0.698. The LET had a receiver operator curve area under the curve of 0.871 with a test value cutoff point, which was any result that contained trace or greater amounts. The sensitivity at this point was 77.8% and the specificity was 94.6%. The LET could be used to rule in endometritis in severe cases but is not sensitive enough to rule out endometritis.

Original languageEnglish (US)
Article number102672
JournalJournal of Equine Veterinary Science
Volume81
DOIs
StatePublished - Oct 2019

Keywords

  • Cytology
  • Endometritis
  • Leukocyte esterase test
  • Mare

ASJC Scopus subject areas

  • Equine

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