Wednesday, October 19, 2016

More than Meets the Eye


When I was in ER practice I was often asked about what cases terrified me the most. Most people would imagine things like hit by cars or devastating surgeries or obscure toxicity cases.  Those could be scary but my answer was always the same....dog fights. Big dogs attacking little dogs, big dogs attacking big dogs or the worst of them all.....any size dog attacking a cat. Dog bite wounds still scare me more than anything else. And it isn't because of infection or spread of disease or even the obvious things like bleeding or broken bones. It's because these cases often look very simple. From the outside sometimes you may only see a few small, harmless-looking, wounds to the skin. It's what is happening below the surface that frightens me.

When I was teaching the interns at the ER hospital I always told them to expect the worst when it came to bite wounds. "It's the tip of the iceberg" we would say. That little skin wound is hiding a world of disaster below the surface. The cases that presented with huge open wounds were honestly the easy ones...often the owners could see the damage that was done. It was even better if there was a broken bone because that is easy to understand. But trying to explain to an owner that their dog or cat that appears fine and just has a few small wounds to its neck or abdomen could be in life-threatening danger is tough.

Humans produce about 150 pounds of pressure when we bite down on something - compare that to the average dog who ranges between 235 pounds of pressure (American Pit Bull) and over 300 (Rottweiler). Take that force and add in the length, usually around 2 inches in a large breed dog, of the average canine tooth (the long pointy one that usually does the biting) and you can see the damage that can be inflicted.

When we are examining the skin surface we are merely looking at the entrance wound - we don't know what has happened to the underlying muscle, fat or worse. Wounds present over the chest or abdomen can easily have traveled into the body damaging vital organs or lacerating important blood vessels. I encountered this several times in ER practice after taking a patient to surgery to determine any internal injuries - it still amazes me that a dog can look fairly stable on the surface and have catastrophic injuries internally. I have seen intestines ripped apart by dog bite wounds  and the only thing noted on external exam were 2 small puncture wounds over the abdomen. I once saw a pancreas torn in half - again the external wounds were pretty minimal. This is a perfect example where looks can be deceiving.

Our job as doctors in these cases is to try to uncover as much damage as we can - often this can be difficult especially if owners do not feel that their pets are in trouble or are seriously injured. A dog I recently saw came in for several dog wounds that occurred the day before. On initial exam the wounds were numerous and infected but it wasn't until we anesthetized the patient the next day to explore those wounds that everyone could see the extent of the damage present. If we had not opened the wounds up and removed all the dead and infected muscle and tissue we could have set this dog up for disaster.

So when good dogs turn bad or simple playdates turn ugly and Fluffy ends up with some bite wounds, please take the time to have your veterinarian take a look. They may be very minimal wounds but if we can't tell from the surface, how can you?

Original Presentation
Original Presentation
After wound explore

Monday, October 17, 2016

Thank your Tech today




Thank you to all our hard working Vet Technicians. We could not do our jobs without your hard work. You help keep us sane during the day, keep our patients comfortable, our clients happy and keep our hospitals looking beautiful. Thank you from the bottom of my heart

Tuesday, October 11, 2016

Something sounds a bit strange



"Something sounded strange when I tried to get a heartbeat", my technician recently told me as she described a  patient in a room waiting to see me. The dog was an older pet, 9 years old, and had come in for not acting right that day. He had been seen a few weeks ago for similar signs but nothing was found that day on his labwork or exam. Today the owner said he didn't really want to get up and was not interested in eating. So when my skilled technician told me her findings, my interest was peeked. As soon as our techs tell us information regarding our patients, we immediately start running a list of possibilities in our minds - its how we are trained to think. We go over abnormalities, symptoms, differentials, possible explanations and so on and so on.

The combination of an older dog who didn't want to get up and eat, along with the strange thing my tech described made my inner ER doctor come to life. I asked her a little more about what she meant - she said it was hard to hear his heart and that his pulses on his back legs felt funny. Small alarm bells start ringing in my head because I immediately know what I need to do for this poor dog and owner. I go in and approach the concerned owner and let him know that based on what he has described at home and what my technician noted on her initial exam I am concerned that his dog may have some fluid developing around his heart - a condition called pericardial effusion. I do my physical exam and notice that this dog's gums do look a little pale and his heart rhythm is abnormal. I tell dad that our next step to confirm things is to do a quick ultrasound to look for fluid around the heart. If we see some I will come back and talk to him about our next steps.

Our ultrasound confirmed what I had suspected - this poor guy did indeed have pericardial effusion - fluid contained within the sac surrounding the heart. Imagine the heart sits inside a thin balloon - usually there is only a small amount of fluid in that balloon but in some instances we get a large amount of fluid there. This fluid fills up the balloon and puts pressure on the heart, preventing the heart from being able to contract and pump normally. This leads to symptoms such as we saw today - lethargy, pale gums, disinterest in food, and difficulty hearing the heart when listening to the dog with a stethoscope. Imagine trying to listen to music through a wall of water - it would all sound muffled right? That's what it sounded like when we listened to this dog - everything was muffled.


We were able to drain the fluid from around the heart using a long needle (a procedure called a pericardiocentesis). We removed almost 1/2 liter of blood from around his heart.


This instantly made him feel better and when his dad picked him up later that day he eagerly walked into the room, tail wagging the whole time.  Often pericardial effusion is due to an underlying cancer somewhere and in this instance, a large tumor on this dog's spleen had metastasized to his heart which was causing the blood to accumulate around it. Unfortunately, the owners had to make the tough choice to say goodbye to their friend a week later.

I credit my great technical staff for noticing such a slight symptom and clinical sign - it was their keen awareness of what is normal and abnormal that tipped me off to know which direction to head in with this patient.  I was glad we were able to provide some relief to this patient, even if only for a short amount of time.





Wednesday, October 5, 2016

Video Games and Surgery?


I never really played video games growing up - it was never really my thing. I had a Nintendo gaming system (yes I am old) and we would play it but nothing like what some people do nowadays. My husband has a PlayStation 4 or 5 or 20...whatever the latest model is and he does play games from time to time. He invites me to play along with him but I generally decline and go on about my housework, or reading or watching trash TV. Imagine his dismay when I came home a few months ago and said, I am learning how to do 'video game surgery'.

Now it's not really video game surgery - but it feels that way. Minimally invasive surgery is becoming more and more common in veterinary medicine. It already is commonplace in human medicine and often laparoscopic or arthroscopic procedures are done in place of more traditional open surgeries. We know that these surgeries produce less pain, have a quicker recovery and less chance of complications. As with most things, veterinary medicine has lagged behind a little but we are now seeing more and more laparoscopic procedures being performed not only by board-certified surgeons but by general practitioners, like myself.

Why do I call it video-game surgery? Because we do it with a camera placed inside the body through various port sites and use instruments internally to do our work. We do all this while watching a monitor displaying what is happening inside the dog. It feels just like playing a video game or living in virtual reality. Either way...it's super cool!

We all know that elective spay procedures help decrease the incidence of unwanted pregnancies as well as prevent future illness in our female dogs such as pyometra (life threatening uterine infection) and mammary cancer. Most people envision the traditional incision on the belly from a spay as seen here :


What most people may not realize is there is an alternative - laparoscopic ovariectomy. The terminology is a little different in that with this procedure we are only removing the ovaries - we are leaving the uterus. However studies have shown there are no disadvantages to leaving the uterus and removing only the ovaries since it is the ovaries that are producing the hormones and ovulating. Laparoscopic surgery allows us to do our procedures through small incisions that heal quickly and cause less pain. It also gives us the opportunity to evaluate the entire abdomen for any abnormalities and perform additional procedures such as a prophylactic gastropexy in large breed dogs - this is a very important preventative measure wherein we suture the stomach to the muscles of the abdomen to prevent bloating from occurring in the future. If done traditionally, a gastropexy would necessitate an incision from the breastbone all the way to the pelvis to allow enough visualization to do our spay and the gastropexy.  Compare this to the incisions below, recently done, to do the procedures listed above. 


Three nice little incisions right? And I can tell you, this dog was up and bouncing around a few hours after surgery - definitely less sore than the traditional route. I'm lucky to work at a hospital that offers this newer procedure as an alternative to the traditional route. It certainly is less painful, quicker recovery and less chance of adverse events such as infection or breakdown of the incision site. For those considering upcoming spay procedures on their dogs I encourage you to talk with your veterinarian about this option. If you live in the Charlotte area check out our hospital and see if this procedure is right for your dog. Plus, it's pretty cool to say your dog had video game surgery, right?!?