Following on from previous posts and some concerns people had about this operation and pyometra I contacted the vet that does the ops and this was the response from his nurse. Hope this helps with any decision has to make
Thank you for your email regarding laparoscopic spaying.
Dr Page has been performing laparoscopic ovariectomies (as opposed to the routine bitch spay - an ovariohysterectomy), for nearly 2 years now. It has become a highly successful operation mainly due to the fact that the dog is allowed to be running round for off lead exercise usually the next day after surgery, when the anaesthetic has fully worn off. After the routine way of spaying, the dog needs to be rested for 7-10 days. Due to the fact that the operation is much less traumatic (only 2 small holes on the tummy are made, and only the ovaries are removed) than the routine method of spaying, the dogs are generally brighter and are less painful.
In the time we have been carrying out this operation, we have never seen or heard of any problems regarding pyometra's, in the bitches that have had the surgery here. Dr Page spent a long time researching published papers on this topic before undertaking this surgery, and always keeps up to date with recent findings - all the studies found absolutely no problem in leaving the uterus in place. Pyometra's usually occur a few weeks after a bitch's season ends, and after a hormonal change in the bitch. By removal of the ovaries, the source of reproductive hormones oestrogen and progesterone, she cannot come into season.
Stump pyometra's almost always involve hormone changes. In bitches that have had stump pyometra's, studies have shown they were nearly always related to the presence of ovarian tissue, the tissue having been incompletely removed during spaying. Inevitably these bitches would still show signs of a season. The other main reason for a stump pyometra is a reaction to the suture material used to tie off the uterus. Laparoscopic ovariectomised bitches do not have any internal sutures, only skin sutures.
In studies in dogs in Europe that underwent ovariectomies (not laparoscopically, but only the ovaries were
removed) there have not been any reported problems in leaving the uterus. Ovariectomies in Europe have been going on since the 1980's.
I hope this will put people's minds at rest on the forum page, and if you have any further questions please do not hesitate To email again.
Regards
Louise Gardiner RVN
Registered Veterinary Nurse
Ayrton Veterinary Hospital