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Microchipping-Negative Side Effects?

post #1 of 12
Thread Starter 
Just wondering, are there any negative side effects of microchipping? I though someone once told me an animal is at risk for cancer at the injection site....
post #2 of 12
a small risk of cancer since the body may regonize it as a foreign object... another risk is scare tissue
post #3 of 12
Quote:
Originally Posted by white cat lover View Post
Just wondering, are there any negative side effects of microchipping? I though someone once told me an animal is at risk for cancer at the injection site....
The biggest problem that I have heard of with microchipping (both my cats are microchipped) is people forgetting to udate their contact information when they move. It happens more than you might think.
post #4 of 12
The other negative is that not all places use the same chip or chip reader. Too bad there isn't a uniform chip that all readers can read, or a uniform reader that reads all chips.

My question: Since I didn't have my cats chipped at their spay surgery, can it be done under a local anesthetic or no anesthetic? Or does it have to be done under general anesthesia? I don't want to put my CRF kitty under anesthesia, but have been considering chipping for a while.
post #5 of 12
Quote:
Originally Posted by Pookie-poo View Post
The other negative is that not all places use the same chip or chip reader. Too bad there isn't a uniform chip that all readers can read, or a uniform reader that reads all chips.

My question: Since I didn't have my cats chipped at their spay surgery, can it be done under a local anesthetic or no anesthetic? Or does it have to be done under general anesthesia? I don't want to put my CRF kitty under anesthesia, but have been considering chipping for a while.
It doesn't require anaesthesia. It's just inserted by a larger than normal needle and takes but a second.

I would talk to your vet first though as I'm not certain how your CRF kitty would handle any stress. Your vet will be better able to inform you.
post #6 of 12
Quote:
Originally Posted by Yosemite View Post
It doesn't require anaesthesia. It's just inserted by a larger than normal needle and takes but a second.

I would talk to your vet first though as I'm not certain how your CRF kitty would handle any stress. Your vet will be better able to inform you.
Thanks! I guess I didn't realize it could be done without anesthesia. I'm taking Cleo in next week for bloodwork, so I'll ask Dr. Sue about it then. Cleo is the most laid-back, easy going, low stress cat I've ever known! Absolutely nothing fazes her, so chipping her would be a breeze. Maggie, however, would be a nightmare just waiting to happen.
post #7 of 12
Quote:
Originally Posted by Pookie-poo View Post
The other negative is that not all places use the same chip or chip reader. Too bad there isn't a uniform chip that all readers can read, or a uniform reader that reads all chips.

My question: Since I didn't have my cats chipped at their spay surgery, can it be done under a local anesthetic or no anesthetic? Or does it have to be done under general anesthesia? I don't want to put my CRF kitty under anesthesia, but have been considering chipping for a while.
Mine did not have to go under, and the needle didn't bother her one bit. I think it bothered me more, I hate needles and it is a big one!
post #8 of 12
i have several of my kiddos microchippedwe are working on getting everyone done. i think its a good safeteyto have.
post #9 of 12
What you are referring to is called vaccine-associated sarcoma, a tumor which can occur in cats at an injection site. This occurs in only one out of 1,000 to one out of 10,000 cats (likelihood seems to be dependent on the type and volume of vaccine injected); so it is quite rare. It has been known to occur with microchips as well as vaccines.

However, since the diseases which vaccines protect against are much more common than VAS, getting any necessary vaccines is easily the best choice (but this does mean one should not overvaccinate).

Since your pet is much more likely to get lost than to get VAS from a microchip, the decision is heavily in favor of microchipping. One could also choose a tattoo, which may not be as likely to result in VAS (I could not find any studies which tested tattoos for this possibility; however, it seems that the injection is not as deep and does not involve nearly as much material as a microchip or vaccine).

Treatment for VAS is surgery to remove the tumor and surrounding tissue. The average remission time obtained through this method is about a year (full cures are possible).
post #10 of 12
I never realised that about chipping, I thought it was the adjudent thingies in the vaccines that caused the risk? WE dont have the prob in the UK of readers not being able to read the cards fortunately.
Pookie Poo - you might be surprised at your cats reaction - I expected 3 out of the 4 I have had done to turn, and only one did. Molly accepted it, yet taking blood out of her requires an anaesthetic gel!!
post #11 of 12
Quote:
Originally Posted by booktigger View Post
I never realised that about chipping, I thought it was the adjudent thingies in the vaccines that caused the risk? WE dont have the prob in the UK of readers not being able to read the cards fortunately.
I didn't realize this was a problem here in the States either. I was told by the humane society that scanners can read any chip.
post #12 of 12
some stress may be endured while microchipping. It is inserted with a 16g needle and some cats just have such tough skin that a little bit of effort on the vets behalf is needed.

The big problem bout 1-2 yrs ago here in central NJ was that shelters did not have scanners. I think that has all changed(i moved and live in northern nj now where they are on top of things)...yea

The only other thing i have seen is migration of the chip. Working in vet offices for almost 3 yrs now I've only seen it once. The chip migrated all the way to the dogs front leg, very interesting. We took x-rays just to keep on hand to show that it does happen but nothing to scare you away from chipping. If properly scanned (the whole animal underneath also) the scanner will pick up the chip. Good luck and go get that kittie chipped
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