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Cytological diagnosis of endometritis in the mare: investigations of sampling techniques and relation to bacteriological results


Walter, Jasmin; Neuberg, Klaus-Peter; Failing, Klaus; Wehrend, Axel (2012). Cytological diagnosis of endometritis in the mare: investigations of sampling techniques and relation to bacteriological results. Animal Reproduction Science, 132(3-4):178-186.

Abstract

Aim of this study was to compare uterine smears made using the Knudsen catheter, the cytology brush and a uterine culture swab with regard to diagnostic usefulness and the occurrence of neutrophils. Additionally correlation between culture results and the occurrence of neutrophils in uterine smears was investigated. Samples were collected from 340 mares, 81.5% of which were in estrus. Smears made using the cytology brush yielded more endometrial cells per high-power field than those made using the other two instruments (p<0.0001), and a larger proportion had PMNs compared with smears made using the uterine swab (p<0.0001). For smears made with the cytology brush, cultures of β-hemolytic streptococci were more often (p=0.002) accompanied by PMNs than cultures of bacteria other than β-hemolytic streptococci, and there was a positive correlation (r(s)=0.2 p=0.01) between the number of PMNs in smears and the number of colonies of β-hemolytic streptococci. The cytology brush was superior to the other methods because it generated a larger proportion of diagnostic useful smears and the occurrence of PMNs in smears was significantly correlated with the occurrence of cultures of β-hemolytic streptococci.

Abstract

Aim of this study was to compare uterine smears made using the Knudsen catheter, the cytology brush and a uterine culture swab with regard to diagnostic usefulness and the occurrence of neutrophils. Additionally correlation between culture results and the occurrence of neutrophils in uterine smears was investigated. Samples were collected from 340 mares, 81.5% of which were in estrus. Smears made using the cytology brush yielded more endometrial cells per high-power field than those made using the other two instruments (p<0.0001), and a larger proportion had PMNs compared with smears made using the uterine swab (p<0.0001). For smears made with the cytology brush, cultures of β-hemolytic streptococci were more often (p=0.002) accompanied by PMNs than cultures of bacteria other than β-hemolytic streptococci, and there was a positive correlation (r(s)=0.2 p=0.01) between the number of PMNs in smears and the number of colonies of β-hemolytic streptococci. The cytology brush was superior to the other methods because it generated a larger proportion of diagnostic useful smears and the occurrence of PMNs in smears was significantly correlated with the occurrence of cultures of β-hemolytic streptococci.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:05 Vetsuisse Faculty > Veterinary Clinic > Department of Farm Animals
Dewey Decimal Classification:570 Life sciences; biology
630 Agriculture
Language:English
Date:2012
Deposited On:22 Feb 2013 09:25
Last Modified:17 Feb 2018 07:58
Publisher:Elsevier
ISSN:0378-4320
OA Status:Green
Publisher DOI:https://doi.org/10.1016/j.anireprosci.2012.05.012
PubMed ID:22727031

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