Monday, February 20, 2012

Why do dogs jump up on us?


Why do dogs jump up on us? Why do they do behaviours that we find annoying? Well, the simple answer is that if it has worked in the past to get our attention, they will do it again. Think of the way people normally handle a dog jumping up on them. They tell them to get down, shout, push them down or other more punitive (not recommended) measures. Regardless, they get attention even if it is negative.

Now think of what happens when the rules get changed. One of the best ways to get rid of the behaviour is to simply ignore it. For a dog jumping up, fold your arms, turn your back and walk away. When they stop the behaviour, quietly ask for an appropriate behaviour such as a sit and when they give it, treat, praise and/or play with a toy.

One of the side effects of changing the rules is our dogs will often go through what is called an extinction burst. They will do the behaviour with more vigor in hopes of getting the desired attention. (I once had a Lab X jump into my lap during a consultation when the paw on the lap just didn't work with me.)

A great way to illustrate a point is to get a human example. Yesterday morning, I went to yoga class. Their scanner can be a little touchy with the cards. You just have to get the angle right. Sometimes I would need to scan it a couple of times (kind of like a dog jumping up to get attention). So I walked in with my card ready and swipped it under the scanner. I thought nothing of it as I changed the position of the card, how close or far away it was and kept swipping (extinction burst). Now, I won't embarrass myself by saying exactly how many times I trying. The truly embarrassing part was that the machine was off..........

If you have read my blogs before, you know that Kodak is my special needs dog. Since I diagnosed him so early with his anxiety based aggressive issues, I instituted protocol for deference. He has to sit for all attention, then he gets what he wants. I grabbed a picture of him asking for attention to get up on my lap as I was doing a draft of this blog.

Friday, February 10, 2012

MacGyver time


About three weeks ago, a little male dog named Coreo came in for a regular neuter. Normally I don’t get called over to try to intubate by my techs, but this morning I did. For a moment, I thought they were playing a trick on me! He had a severe overbite so I could grab his tongue but the mouth wouldn’t open far enough to place the endotracheal tube in. An inch and a half just doesn’t cut it. We took some radiographs and woke him up. I wasn’t comfortable going forward with surgery if I couldn’t have airway access. If something had gone wrong, I wouldn’t have been able to control the situation.

Once he was awake, I went to take a look at the radiographs. Not only was he born with a congenital overbite, he also had a congenital malformation of the temporomandibular joint (jaw joint) on both sides. The only reason that he was doing was well as he was eating and drinking was because of the overbite allowing the tongue to grab the food. Dogs just never know they are disabled!

As the CT scan and surgery were not in the playing cards and Coreo was finding more things to hump, we agreed to go forward with the castration. I had one major concern; I still needed control of the airway. Since there could be more congenital problems, I needed to bypass the area. So, we did a temporary tracheostomy. I modified an endotracheal tube so it would fit into the trachea. It was cool being able to take the time to place one rather than doing it under the duress of an emergency.

I haven’t been so happy during surgery in quite a while. Every time I looked at Coreo’s oxygenation ranging between 97-98%, I just grinned. The recovery was pretty neat too. Once he woke up, we simply removed the tube. His muscles just covered the trachea sealing the hole and the skin will close shortly. Love my job!!!

Sunday, February 5, 2012

If Dr. Seuss were a vet



I was recently sent this poem. I have tried to find who the author is but to no avail; however, it is practically perfect.












I won't dispense it, Sam I am....
I won't dispense without exam.

I won't dispense it to your dog,
Although you'll bash me in a blog.

I won't dispense it to your friend,
Who yells at me without an end.

I won't dispense it for the ear,
For the eyes, or for the rear.

I won't dispense it though you yell,
How mean I am - the world you'll tell.

I won't dispense it to your cat,
To your bird, or to your rat.

I won't give in - I'm standing tell,
Although you'll whine and cry and call.

I won't dispense it, Sam I am,
You can't have meds without exams!

Sunday, January 29, 2012

A bowlful


So, how do our pets get these tumors called lipomas? Just like any other tissue in thce body, fat cells can become masses. Fatty tissue in a particular area grows more quickly forming a tumor. I generally see them in dogs in their senior years. Our slim dogs and cats don't seem to develop them as easily.

No matter what anyone tells you, you cannot tell if a mass is a lipoma or not without aspirating the contents with a needle. This is a very easy procedure for all involved. I simply use a needle and syringe to remove cells from the mass and look for fat drops on a slide. It is always a relief to see that glossy, clear droplet.

Usually a lipoma is just a cosmetic problem. Only the ones causing issues are generally removed. This one is from a small dog of roughly 22lbs (now 21lbs!). It was growing behind the left shoulder blade and she was starting to have issues walking. Knowing that it was a lipoma before surgery made it much easier to perform. I didn't have to worry about margins, I could just cut over it and scoop it out. It's not a sexy surgery but it sure is fun!

Sunday, January 15, 2012

Oh yes, I took the picture!


These pictures were taken in the name of science.

Many people don't know that intact male cats have barbs on their penises. They are supposed to have two purposes. One is to induce ovulation in the female cat and the other is supposedly to scrape sperm from other male cats out of the female's vagina.

For veterinarians, there is another purpose. If there are no barbs on the penis, the cat has been castrated. I know it is generally very easy to tell if a cat has been castrated (just lift the tail). I have run into a couple cats that had been adopted as neutered males but it turned out they were bilaterally cryptorchid (the testicles were still in the abdomen).

Sunday, January 8, 2012

A dog named Zipper



Well, this past week, they came by two again. This is a little story about a dog that I shall call Zipper. Over the years he has made a habit of eating things that aren't exactly what you would describe as edible. Last year I had to do an emergency exploratory to remove material that had become stuck. One incision was made into his stomach and two into his intestines.

His owners knew something was up when he started to vomit and wouldn't eat. He is a really great dog to work with but there are times when you just shake your head when you see his name on the appointment book. We were pretty busy with multiple surgeries so the girls had him dropped off with automatic radiographs.

When I got out of surgery the radiograph was ready for me. There it was, the classic pattern for a foreign body. All the gas built up in the intestines as well as an incredible amount of gas in the stomach. You can see the arrow where the foreign body was stuck. It was in the large colon so we proceeded with a few enemas. When that didn't produce the foreign body, we sedated him and were able to pull out a small grey sock with pink trim.

We were elated until we did a follow up radiograph just to make sure there wasn't anything else left lurking in his intestines. Now that the gas was moving, it showed up. Another one!!!! He got to stay the night for more enemas. We were so happy when the other one was produced. The daughter did not want the pair back.

Oh yeah, why I call him Zipper. It would be nice to just be able to open his stomach with a zipper to see what he's eaten this time.

Monday, January 2, 2012

They came by two



I have slowly learned that the moment that I think I've seen it all, something new will be right around the corner. So it was when I went to examine a young puppy for the first time. I always start at the head and make my way back. I kind of got stuck on the mouth. As you can see from the picture, this puppy had two baby canine teeth (or 604s using the proper terminology) on her left upper jaw. I told her owners that we would need to remove both teeth when she was under general anesthetic for her spay. This is necessary to make room for the adult tooth to come in properly. Having two teeth blocking the adult tooth is bad news.

We scheduled her spay for 16 weeks of age. Once we were done with that procedure, we did dental radiographs to make sure the adult tooth was there (which it was). Then came the delicate work. In order to remove the two baby teeth, I needed to make a flap which you can see in the bottom picture. I always find it interesting that people think it is so easy to remove baby teeth. The root makes up two-thirds of the whole tooth. Break the root off and you have doubled your work load. In this case you also have to take into account that no harm can come to the adult tooth. It is very delicate at this stage.

Wonder what I'm going to see next!