Posted on December 26, 2011
Ovariectomy (OVE) Versus Ovariohysterectomy (OVH) Revisited
If you’ve been reading my blogs for awhile now, you may remember two of my previous posts. While OVH surgery involves removal of the uterus and both ovaries, with OVE surgery just the ovaries are removed. Both are effective techniques for spaying (neutering) female dogs and cats. I am bringing this topic to your attention for a third time based on a recently published article within the Journal of the American Veterinary Medical Association.
The article is titled, “Ovariohysterectomy Versus Ovariectomy for Elective Sterilization of Female Dogs and Cats: Is Removal of the Uterus Necessary?” Let me get right to the article’s punch line by presenting the authors’ final paragraph:
We do not believe that there is any scientific evidence for the preferential teaching of ovariohysterectomy instead of ovariectomy by schools and colleges of veterinary medicine in the United States and Canada, and it is our view that ovariectomy provides an equally effective technique for elective sterilization of female dogs and cats with no recognized disadvantages. Potential advantages of ovariectomy include a smaller incision, better viewing of the ovarian pedicle, and possibly less risk of complications associated with surgical manipulation of the uterus.
The authors’ conclusion is based on a review of recent literature comparing these two surgical techniques. When I’ve previously recommended OVE as the spay surgery of choice, here are the two concerns that you, my readers have voiced:
- You are unable find a surgeon who will perform OVE surgery. Here is what I recommend. Call multiple veterinary hospitals in your community and ask if the vets on staff are willing to perform ovariectomies (if the receptionist is uncertain about what you are asking, you may wish to tactfully ask to speak with a veterinarian or technician). If nothing else, you will be raising awareness about this recommended alternative. Based on what you’ve told me, some of your vets have been willing to educate themselves and perform their very first OVE surgery in response to their client’s request, and the results have been fabulous. If one is adept at removing ovaries and uterus, removing just the ovaries is a “no brainer.” So, it is perfectly fine if your vet performs his or her very first OVE on your dog or cat (I would normally strongly advise against your pet being your vet’s “first” surgery or procedure of any kind). Board certified surgeons gladly perform OVE surgery and may do it the conventional way (incision made on the underside of the abdomen) or via laparoscopy (a method that employs scopes which are introduced into the abdominal cavity via small incisions). The only drawback to having a specialist do the work is that the price tag for the work will be considerably higher than the norm.
- You have voiced concern that if the uterus is not removed, your pet could develop pyometra, an accumulation of pus/infection within the uterus that necessitates its surgical removal. Please don’t buy into this ridiculous notion! Pyometra only occurs under the influence of progesterone, a hormone produced by the ovaries. Without the ovaries no progesterone is produced and there is no risk for development of pyometra. Period!
I want to emphasize that if you cannot find a surgeon who will perform OVE surgery on your dog or cat, no biggee! There is truly nothing wrong with removing the uterus. I only wish to create recognition for the fact that it is completely unnecessary to do so. Lastly, if you are contemplating spaying your older pet (her uterus has been around the block a few times), visual inspection of the uterus at the time of surgery is warranted. If the uterus appears abnormal, it should definitely be removed- the one situation where OVH rather than OVE makes perfect sense.
Has your pet recently been spayed? Which surgical procedure was performed?
Happy holidays to you and your loved ones,
Nancy Kay, DVM
Diplomate, American College of Veterinary Internal Medicine
Author of Speaking for Spot: Be the Advocate Your Dog Needs to Live a Happy, Healthy, Longer Life
Author of Your Dog’s Best Health: A Dozen Reasonable Things to Expect From Your Vet
Recipient, Leo K. Bustad Companion Animal Veterinarian of the Year Award
Recipient, American Animal Hospital Association Animal Welfare and Humane Ethics Award
Recipient, Dog Writers Association of America Award for Best Blog
Recipient, Eukanuba Canine Health Award
Recipient, AKC Club Publication Excellence Award
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Please visit http://www.speakingforspot.com to read excerpts from Speaking for Spot. There you will also find “Advocacy Aids”- helpful health forms you can download and use for your own dog, and a collection of published articles on advocating for your pet’s health. Speaking for Spot is available at Amazon.com, local bookstores, and your favorite online book seller.