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  • Title: New techniques using transcervical uterine cannulation for the diagnosis of uterine disorders in bitches.
    Author: Watts JR, Wright PJ, Lee CS, Whithear KG.
    Journal: J Reprod Fertil Suppl; 1997; 51():283-93. PubMed ID: 9404297.
    Abstract:
    A technique for collecting uterine samples from bitches without the need for surgery was developed. This technique involved visualizing the cervix with a rigid endoscope and passing a catheter through the cervix into the uterus. Samples for microbiology and cytology were obtained by the infusion and aspiration of sterile normal saline. This technique allowed uterine microbiology and cytology of the normal bitch throughout the reproductive cycle. Microorganisms were frequently recovered from the uterus during pro-oestrus and oestrus, but rarely at other stages of the reproductive cycle. The uterine microflora often reflected the vaginal microflora during pro-oestrus and oestrus. The cells found in uterine cytology samples from normal bitches included endometrial epithelial cells, leukocytes, erythrocytes, cervical cells, spermatozoa and bacteria. The types, proportions, morphology and numbers of cells varied throughout the reproductive cycle. The endoscope could be passed into the uterus and the endometrium examined from parturition until day 23 post partum. These procedures and contrast hysterography were used to investigate the reproductive tract of bitches. The above techniques have facilitated the diagnosis of postpartum metritis (n = 3), pyometra (n = 2), endometritis (n = 1), abortion (n = 1), retained placenta (n = 1), postpartum uterine rupture (n = 1), endometrial subinvolution (n = 1) and misalliance (n = 1) in 21 bitches investigated.
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