Transcervical endoscope-guided emptying of a transmural uterine cyst in a mare.

This study examines the treatment of a large uterine cyst in a horse using transrectal ultrasonography and videohysteroscopy. The cyst was removed through electrocoagulation and then drained via transrectal massage confirming the connection between intrauterine and subserosal cysts.

Research Background and Objective

• The research revolves around a case study of an 18-year-old Friesian mare that was diagnosed with a large intrauterine cyst. The purpose of the study was to investigate the efficacy and procedure of treating such conditions using transrectal ultrasonography and videohysteroscopy.

Methodology and Procedure

• The mare was first given a thorough examination using transrectal ultrasonography. This identified several small to moderately sized endometrial cysts.
• One of these intraluminal endometrial cysts was found to be connected to a larger subserosal cyst via the myometrium, effectively forming a ‘transmural’ cyst complex.
• During a videohysteroscopy, the intrauterine part of this transmural cyst was removed through a method known as electrocoagulation. The researchers used a polypectomy snare for this procedure, which involves cutting and cauterizing tissues to prevent excessive bleeding.

Results and Findings

• After the electrocoagulation procedure, it was possible to drain the larger subserosal part of the cyst into the uterine lumen. This was done through a process known as transrectal massage.
• The successful drainage confirmed the presence of the transmural connection, i.e., the connection between the smaller intrauterine cysts and the larger subserosal cyst.

Conclusion

• The study concluded that transrectal ultrasonography and videohysteroscopy, coupled with electrocoagulation via a polypectomy snare, can be effective methods for the treatment of large intrauterine cysts in mares. This approach allows for the safe removal and drainage of such cysts.