Unilateral and bilateral laparoscopic ovariectomy of mares by electrocautery

Abstract

Twelve horses underwent standing laparoscopic ovariectomy using electrocoagulation and fine dissection as the only means of achieving haemostasis of the severed ovarian pedicle. Four mares had bilateral ovariectomy performed as a treatment for aggressive behaviour thought to be associated with the oestrous cycle. Eight mares had unilateral ovariectomy performed for removal of a granulosa thecal cell tumour (GCT). Electrocoagulation provided an effective means of haemostasis in both normal and pathological ovaries. Only one case (removal of a GCT) had mild haemorrhage following electrocoagulation, necessitating the need for the application of endoscopic clips to achieve haemostasis. Six of the horses developed minor wound complications (none of them requiring any additional treatment). Long-term follow-up information showed complete resolution of abnormal behaviour in all eight horses with GCTs, but in one of the four horses with normal ovaries the aggressive behaviour had not been completely resolved.

A novel surgical technique for enucleation in rabbits to reduce the risk of intra‐ and post‐operative orbital hemorrhage

“…The LigaSure™ is a feedback‐controlled bipolar vessel‐sealing device that has a wide surgical utility in human and veterinary medicine, including zoological companion animals . It uses both pressure and energy to permanently fuse vessel walls up to 7 mm in diameter, including those within tissue bundles, minimizing the need for dissection, and vessel isolation.…”

A Review of Equine Laparoscopy

“…Monopolar and bipolar electrosurgery provide opportunities for hemostasis in the abdominal cavity for removal of cryptorchid testes, descended testes, ovariectomy, as well as adhesiolysis [23, 29–31]. Monopolar electrosurgery can be delivered via many configurations of laparoscopic instruments, requires the use of an electrosurgical generator, an active electrode, and a grounding pad.…”

“…The mesovarium should be infiltrated with 10–15 mL of local anesthetic prior to amputation [53]. With normal sized ovaries, the ovarian pedicle can be ligated using ligating loops [24, 30, 82–84], ultrasonic devices [39, 40], vessel sealing devices [30, 36, 37], electrosurgery [31, 35, 85], lasers [45], stapling devices [42], or polyamide tie-raps [28]. When using ligating loops, a shorter knot pusher is used in order to have a larger ligating loop to fit over the ovary.…”

Left paralumbar laparoscopic bilateral ovariectomy in mares

“…Minimally invasive standing laparoscopy is a common and accepted technique for ovariectomy in the mare . Most laparoscopic bilateral ovariectomies require incisions in both paralumbar fossae, with 2‐3 portals per paralumbar fossa . Restricting the number and location of laparoscopic portals within a single paralumbar fossa could minimize surgical morbidity in mares undergoing elective ovariectomy.…”