VetInfo Digest March 2000![]()
This Month:
Keep Searching for Information (we are only part of the search)
Don't Mislead Your Vet
New Products
New Information
Free brochure on avoiding dog attacks from State Farm and Auburn University
What was his name?
This months note:
This year there are even more good ways to control fleas and heartworms. All of the current monthly medications for heartworms work well and the prescription flea products are very good, too.
Depending on the problems in your area, giving separate flea and tick medications may make a lot more sense than using a combination product. On the other hand, some areas are well served by the products that combine flea and heartworm prevention. In this case, the ease of giving only one medication may make a lot of sense. Your vet may favor one combination of ingredients over another, so listen to your vet's recommendation. He or she knows the problems in your particular area better than the marketing department at the pharmaceutical company!
Keep Searching
I practice in a very rural area. Prior to establishing my practice in Mathews County, VA, there had never been a veterinarian who practiced in the county. Some visited, but no one ever tried to build a practice here. It is very hard to run a one-man practice and also find the time to attend continuing education meetings. Even when this is possible, the meetings have many topics being discussed concurrently. It was necessary to pick and chose among the latest information and to try to evaluate which speakers might say something of value to the practice. It was very difficult to stay current with the latest trends in veterinary medicine twenty years ago.
Journals were helpful in keeping up. I am pretty sure that I subscribed to more journals than most vets. But journals are often as much as two years behind in printing information that is received by them. Many times it was impossible to find written information on a new surgical procedure or new medication for months, despite widespread use in more urban areas.
The Internet has changed this situation dramatically. We work hard to make our site informative and to try to address the needs of the people who visit, but there are a great number of very good Internet sites. Check our information against information that you find other places. When you find conflicting information, ask us to defend ours. Several times we have discovered that our information was partially lacking or even completely in error.
Veterinary medicine changes all the time. It is clearly impossible for any one veterinarian to keep completely current with all the latest trends and all the latest information. Worse, it is pretty hard for any veterinarian to avoid believing at least a small amount of the misinformation that is constantly available. Keep this in mind when discussing information with your vet.
Don't mislead your vet
You have a sick or injured pet that needs medical attention. Your vet wants to discover the cause of the illness or the severity of the injury and work out a plan to fix the problem. Ideally, you are working together with your vet, as a team, to resolve the problem your pet has. Unfortunately, it is very easy to mislead your vet and make the diagnostic process more complicated than it needs to be.
I know that many of my clients mislead me about things like the length of time their pet has been ill, whether they have seen another veterinarian prior to seeking my opinion, their pet's actual diet and other factors that might influence my ability to make an accurate diagnosis. These are the easy problems for the client to correct.
Clients who usually come to our practice are often very reluctant to tell me they saw another veterinarian this time, before coming to me. I am not sure if they are embarrassed, don't want to hurt my feelings or are worried that if I know that, I might not be as responsive to them as I would otherwise be. Whatever the worry is, put it aside. Your veterinarian knows that it is sometimes necessary for clients to see someone else. None of us is available twenty-four hours a day, everyday, for every client and none of us has the ability to please every client on every visit. Knowing that someone else has looked at a pet and made a preliminary diagnosis is helpful. Knowing who made the diagnosis and what they thought was wrong is very helpful, especially in an area in which the vets are familiar with each other's practice habits and abilities. Having their lab findings and record of the visit may save you several hundred dollars in repeated lab work. It is important enough for the outcome of a difficult case to be completely honest.
There is a big difference between the possibilities for gastrointestinal disturbances between a house cat with access to its own food only and a dog who roams the neighborhood freely. If you normally feed Eukanuba but were a little short on cash this week and bought "Generic In A Bag", you need to tell this to your vet. Sure you're going to hear that it is a possible cause of the GI problems, but you already knew that. Your vet just didn't. If she does, it could save you money and your pet a lot of discomfort from invasive lab testing.
Sometimes you don't know what is important in a medical history. The following examples of things that impact on a medical history might help you to do a better job letting your vet know what is wrong with your pet in the future.
There are a number of diseases and disorders that only occur in certain geographical areas. If you spend part of the winter in Arizona with your pet, your vet in Massachusetts might not think of fungal disease as a possible cause of coughing or weight loss unless he thinks to ask if your dog stays in Massachusetts all the time. Cats who winter in Florida may have liver flukes that the vet in Pennsylvania is very unfamiliar with. In our practice we have seen foxtail problems in pets coming back from family trips in the West. We have seen leishmaniasis in dogs coming home from the Middle East with soldiers and coccidiodiomycosis in a couple of dogs who spend the winters in Arizona and the summers in Virginia. Without knowing that these pets were not full time residents of our geographical area, I am pretty sure that I would have missed most, if not all, of these diagnoses. If you travel with your pet, it is a very important part of its medical history. Some diseases occur in scattered small areas but have a worldwide distribution of that pattern, so any recent travel history at all could provide an important clue for your vet in a "mystery" illness.
Table of some of the illnesses with strong geographical identities within the United States: |
|
|
|
|
coccidiodiomycosis |
Southwest |
blastomycosis |
Great Lakes, Mississippi, Ohio and Missouri River Valleys |
Lyme disease |
Northeast, Northern Midwest |
foxtail awn migration |
West |
heartworms |
Southern US and Midwest |
babesia |
South |
leishmaniasis |
Texas |
salmon poisoning disease |
Northwest |
echinococcus tapeworms |
Midwest |
plague |
West |
Diet has a major impact on many disease processes. This is a sensitive issue among some pet owners. Most people feel that it is important to feed only a dog or cat food and that failing to do so is somehow wrong. Therefore, they are unwilling to tell the vet that they feed Duchess baked chicken breast with sour cream topping once or twice a week, just because she likes it. Feeding of table scraps is under reported for the same reason. Personally, I don't see much wrong with letting pets have some treats, but that is beside the point. When you tell your vet what your dog eats, it is important that you include not only the things you think are good for your pet, but everything else your dog eats, too. Try to be as honest as you can about the possibility that your pet has access to food that you don't give it. Many of the pets we have seen who have eaten rat or mouse poison were reported by their owners as having absolutely no access to this sort of thing. It isn't until they start bleeding excessively that some pet owners finally admit that their pet does tend to wander the neighborhood and they are not sure what it eats "out there". When you are asked what your pet eats, tell the vet what you know. If your pet does stay at home, you control the diet and it is under your control at all times that is very important. If you feed your dog or cat in the morning and then may not see him again until the next morning at feeding time, that is important, too.Your vet can tell a lot about the cause of diarrhea if you are able to accurately report two things. How frequently does your dog have a bowel movement and how much volume, compared to "normal", does each bowel movement contain? Frequent bouts of diarrhea with small volumes of diarrhea being produced at one time usually represent large intestinal diarrhea. Normal frequency bowel movements with large volumes of diarrhea normally represent small intestinal diarrhea. This isn't a foolproof rule but you can help your vet quite a bit if you report this situation accurately.
Food allergies are very hard to diagnose. One of the reasons for this is that clients do not really understand the information that their vet needs to make it possible to diagnose and treat a food allergy. Dogs and cats with food allergies usually have a sensitivity to one ingredient, or to a very small number of ingredients. Beef is a common food allergy. Any food that contains beef will set off the allergic response. So food allergies are not to whole foods, like "Alpo" or "Pedigree" but to one particular ingredient contained in those foods. It is critically important that your vet know every possible food ingredient that your pet has ever eaten, in its lifetime, when trying to rule in or rule out food allergies. It is best if you make a list, in advance, with all family members helping, when food allergies must be sorted through.
You have to tell your vet what medications you are giving your vet when an illness is present. If you are using St. John's wort to make your dog less anxious about your mother-in-law's visit or you are giving aspirin for hip pain, you must tell your vet. Don't worry about your vet's feelings towards herbs or the fact that you are giving your dog Valium prescribed for you by your physician. Tell your vet what medications might be in your dog's system. Include heartworm prevention medications and flea and tick products, as well. This is important to avoid complications with medications your vet might prescribe and to aid in the diagnostic process.
If your pet is totally inside, that is an important factor in building a list of possible illnesses. If your pet stays outside, that is equally important. Don't mislead your vet, though. Any access to the outside, at all, is important in the medical history. If your cat is mostly an indoor cat but goes outside when you are home, that still makes it an indoor/outdoor cat from the standpoint of a medical history.
If you have other pets in your household, this could impact on your pet's health. Let your vet know if you have two other dogs that you take to a different vet or if your husband has a cat that has to see the vet your husband took him to before you married him. If your vet does not realize that there are other pets in the household, it could contribute to missing a diagnosis of a communicable disease that might affect all the pets. It is also important to let your vet know if you live on a farm and your pet is exposed to many other species, such as cattle, pigs and horses. It isn't very often that this matters in a medical history but it can be very important in some circumstances.
Once in a while I have a client who clearly understands that their pet has important information to its medical history but they can't get that across because they are sidetracked by less important details. You can try to tell your vet too much. Just like other folks, vets often have limited attention spans for stories about why you were visiting Key West. Just let your vet know that your pet was there and any medical history that occurred on the trip. Make sure your vet knows that you fed your dog part of the turkey but go easy on the details about the shopping trip to get it. Just remember that your vet is trying to find the important details in the history you provide so don't hide them in details like "I remember the last time he threw up, because Aunt Martha was visiting and she only visits on Tuesdays, because that's the day Uncle Ted plays golf."
If you have your own theory about what is wrong with your pet, that is OK. Tell your vet. Provide the supporting argument but don't make the classic mistake of selling yourself so strongly on what you believe that you fail to relate conflicting information or exaggerate signs like pain or lethargy. This is particularly important when it comes to making psychological connections to pet disorders, such as diarrhea. I don't think that there is any question that stress causes some dogs to have diarrhea. If your pet only gets diarrhea when your fiancé comes to the house to visit, that is an important factual detail. But make sure you state that and not something less clear, such as "my dog doesn't like my girlfriend".
Sometimes a picture is worth a thousand words. It is really useful to see a video of unusual behaviors. Lameness evaluation is a lot easier if there is a videotape of the activities that lead to lameness . More than few of our patients aren't lame in our office, despite being lame at home. A video allows evaluation of these pets in the office with good working knowledge of the problem that is occurring. Sometimes taking a video of seizure activity allows the episode to be timed accurately. Many clients are really surprised at how short a time the actual seizure is when time can be accurately measured. If you have a camcorder, you may be able to help your vet understand a condition that you couldn't possibly explain.
You are your vet's link to understanding the individual circumstances that your pet encounters, compared to the general pet population. Hopefully, your vet is skilled at asking questions that bring out the facts he or she needs to know to diagnose a particular disease. You can help your vet, though. Don't provide misleading information and make sure your vet knows about travel history, other pets in the household, medications being administered, or anything else that might have a bearing on your pet's illness. You can make your vet's job easier or you can make it much harder. Try for easier, as often as possible!
New Stuff
Fort Dodge Animal Health has updated its Duramune line of vaccines to include the serovars (types) of leptospirosis that have been incriminated in most of the recent outbreaks. If you live in an area in which leptospirosis is a concern (the latest outbreaks were on Long Island and in California), it would be worthwhile to ask your vet if vaccination with these new vaccines would be prudent. These vaccines are manufactured using "sub-unit" technology that should help reduce reactions to the vaccines, which has previously been a problem with leptospirosis vaccinations. The two serovars added to the vaccine are grippotyphosa and pomona.
I know that some of you are very interested in pet nutrition. The new edition of Small Animal Clinical Nutrition, by Hand, Thatcher, Remillard and Roudebush is available now. I have not yet seen this book but the authors are good and the previous editions have been excellent. It is available from the Mark Morris Institute, 1-800-800-9930.
Hypertrophic cardiomyopathy (HCM) was found to be inherited in Maine coon cats and American shorthairs, based on a study by Mark Kittleson published in the December 1999 issue of DVM Magazine. Findings were consistent with an autosomal dominant mode of inheritance with 100 percent penetrance. Stillborn kittens from matings in the study were identified as homozygotes that died in utero. Affected kittens usually did not show phenotypic signs before six months of age, developed HCM during adolescence and developed severe HCM during young adulthood. Some of the studied cats died suddenly while others exhibited signs of heart failure first. There is not a genetic screening test at the present time. While most vets suspected this disease was sometimes genetic it is good to have confirmation of this. It is likely that other breeds have some form of inherited HCM, as well.
The Center for Veterinary Medicine (part of the FDA) has issued a warning about handling meat derived dog treats. Apparently there have been a number of cases of Salmonella infection in humans in Canada that have been traced to meat-basted dog chews. The CVM is also concerned about other dog treats, such as pig ears, which they believe may also be contaminated. While this may be an isolated problem with one or two manufacturers, it is something to think about before purchasing and handling dog treats made with meat coatings or of animal parts.
Placing a feeding tube into the esophagus, rather than the stomach or jejenum (intestine) is much easier and is as effective, according to published reports (Crowe, et. al, Journal of the American Animal Hospital Association, Sept. 1997). Complications occur with this technique but they seem to be less severe than those associated with other feeding tube placements. If your cat or dog ever requires tube feeding, it may be a good idea to ask your vet if he or she is familiar with this method of tube placement.
Due to an article in the Tufts newsletter, a client asked me to look into the side effects of Rimadyl (Rx), again. In the process of doing this, I was able to talk with the technical staff at Pfizer and to clarify some information that I was unsure of. The article suggested that reactions to Rimadyl increased with time on the medication. It was my understanding that the severe reactions, which have included death in at least nine dogs, were thought to be an individual sensitivity to the medication, similar to what happens with acetaminophen (Tylenol Rx) in some humans. These reactions usually happen very early in administration of the medication. This has been Pfizer's experience. However, they do note that in aged patients, decreases in renal function or liver function could eventually lead to problems with processing Rimadyl and they suggest periodic lab work, as often as every three months, to rule out these problems, as there is the possibility of some detrimental effect later in administration of the medication, as well. The severe reactions to the medication have occurred with as little as one tablet, so it is vitally important that you discontinue administration of Rimadyl if your dog is lethargic, stops eating or shows any sign of being ill after administration of Rimadyl. On the other hand, Rimadyl has a very low overall incidence of side effects and is still considered to be one of the safer medications for the long term treatment of osteoarthritis in dogs. It is just necessary to be aware that problems could occur, to stop the medication promptly if they seem to occur and to contact your vet as soon as possible after noticing problems.
Several studies published over the last couple of years have indicated that puppies and kittens are more likely to be euthanized at animal shelters or to be abandoned, than to suffer fatal diseases such as feline leukemia or parvovirus. The major reason given for abandonment at shelters is behavioral problems. Your vet can help, or help you find help, for behavioral problems. Seeking help early can make a big difference in the quality of life with a pet and may even save the pet's life.
A new test has been developed to detect bladder cancer from transitional cell carcinoma in dogs. The test isn't perfect, with only a 78% specificity for identifying this cancer in a mixture of healthy dogs and dogs with urologic disease but it is still much better to have a noninvasive test for bladder cancer. If the test is negative (cancer is not present by test results), it is correct about 95% of the time, making it very useful to rule out transitional cell cancer, which is the most common form of bladder cancer and is a fairly common cause of prostate cancer in dogs, as well. The test is distributed by Polymedco, 1-800-431-2123.
A recent study by the University of Florida indicates that injecting kittens who may not have received colostrum from their mother with serum from adult cats will give them antibody protection similar to that found in kittens who did receive colostrum. Poor immune protection may be responsible for many deaths in kittens less than two weeks of age. As this information is developed further it may be possible to cut down on the number of early kitten deaths dramatically by providing serum injections to kittens suspected to have colostrum deficiency.
We have had good luck recently in treating lick granulomas on dogs with a new product, Facilitator Liquid Bandage (Rx) from Blue Ridge Pharmaceuticals. It is a topically applied medication, hdroxyethylated amylopectin) that forms a liquid bandage over the lick granuloma and allows it to heal. It has to be applied once a day to work effectively, based on our experiences, so far.
Experiences with hurricane Floyd here in Virginia and North Carolina and other natural disasters over the last couple of years have made it clear that the biggest risk to pets in floods, hurricanes and other big-scale natural disasters is being left behind when owners evacuate. This can happen because pets aren't home when evacuation orders come or because pet owners have to resort to staying in shelters which do not allow pets. The best advice is to leave early and take your pets with you to some place that they can stay with you. I know this is contrary to the instinct to stay home with the pets that many people feel, but if you are truly concerned, early evacuation in the face of a natural disaster is probably better for pet owners who wish to be as careful as possible about their pet's chances for survival.
Free Stuff
Auburn University and State Farm insurance have produced a brochure on preventing dog attacks that is available from their website (www.statefarm.com) or by calling 877-254-3436.
What was his name?
Usually, I change the names of the people and pets that I write about. This is necessary because I sometimes combine stories or traits of people and their pets. However, this time, I am going to use the real names of the person and pet, because they are just too much part of the story to change them.
Mrs. Tomkins was about 85 years old when I first met her. She had an air of aristocracy about her. Aristocracy that was a little worn around the edges. She came from Richmond and I assumed she had grown up in one of the old Richmond families that have been in Virginia's capitol for generations. She was the wife of the nephew of Captain Sally Tompkins, the only woman to be a commissioned officer during the Civil War and Mathews County's most famous Civil War hero.
Mrs. Tompkins had either been overly honest all her life, or she had finally reached the age where she felt it unnecessary to shade the truth at all when she spoke. It was easy to tell when Mrs. Tompkins was in the waiting room, because her pronouncements were always startling. Usually, they consisted of something like "Am I going to have to wait long while that young vet sees that fat woman's dog over there in the corner?"
For some reason, it was easy to overlook this part of her personality. She didn't show favoritism at all in her comments. Some people are mean to my staff but very nice to me. Mrs. Tompkins was just the same with everyone. She usually remembered to tell me that I really ought to buy a pair of real shoes instead of those sneakers I wore as to work. On the other hand, if she liked someone or something, she always said so, too. Most people realized this pretty quickly and didn't get too upset about the odd harsh word. Somehow, she just didn't come across as malicious, even though she said things no one else could get away with.
Mrs. Tomkins spoke rather loudly. On our first visit, I had to keep moving back from her to give myself some aural relief. As I backed around the exam room trying to exam the huge Labrador that she had with her, I finally got around to asking his name. "I call him Stud," she said.
I'm pretty sure everyone in the waiting room heard her just about as well as I did. We keep the door open between our exam room and waiting room most of the time and I could see a couple of people laughing. I had to leave the room. The image of this elderly woman, with the loud voice and the aristocratic bearing calling "Here Stud!" just overwhelmed me.
Stud was a great dog for a veterinary practice. He was bigger than any dog for miles around and he truly lived up to his name. He fathered more puppies over an eight mile radius from his home than it seemed possible for one dog to manage. He had to swim the East River, about a mile in width, to get to some of his liaisons but that didn't come close to stopping him. He won every fight he was ever in until he was about twelve years old and I sutured up a number of his victims. Mrs. Tompkins paid their bills as the price for letting him run free. She told me flatly that God intended dogs to run free and hers was going to do that, even if it cost her a fortune.
I felt sorry for Stud and for Mrs. Tompkins when he finally did get old enough for time to take its toll. He was a really proud dog and it was obviously really hard for him when he started to be on the losing end of fights. Of course, I did see the justice in this, especially since his main rival and the new king of the dogs on his street had earned the title after numerous battles in which he had been the loser.
Mrs. Tompkins and Stud both died within a short time of each other. Our office was a lot quieter after that but I sometimes still miss her. There aren't that many people who say exactly what they are thinking without filtering it at all. It was refreshing to listen to her, sometimes. Of course, the tip of my tongue was sometimes sore from biting it after she left, but I knew that if I thought about what she said, there would be at least some truth to it. I miss Stud, too. I can't even come close to condoning letting a dog as aggressive and effective at fighting as Stud run free, but it does sometimes seem like a less exciting world without a dog like him around.
Reviewing Stuff
We have added a number of new subscribers in the last two to three months. We sincerely appreciate all the support that our subscribers have given us. Whenever projects grow, there is some confusion. So, just to review:
To ask Dr. Richards a question, please send the question by e-mail to mervet@inna.net. If you forget this address, there is a "mailto" link in the subscriber area.
If you lose your username or password, we can supply them or create new ones. We didn't add this information to our database until recently, so we sometimes have to create new ones. Please let us know if you have any difficulty signing on. At present the subscriber area mostly consists of the old issues of the VetInfo Digest. We really do hope to expand on this as time allows but in the meantime there may be information you find valuable there.
Dr. Richards will not answer any questions over the phone. We try very hard not to get into any situations in which we might violate practice laws and medical ethics by providing a specific diagnosis for a patient without seeing that patient. We want to have both the question and answer in written form of some sort --- we will answer faxed questions, letters sent by post and e-mail inquiries from subscribers. It is much easier for us to be sure we don't violate our ethical standards when questions are submitted and answered in writing, so we feel strongly about the policy of not taking questions over the phone.
You can ask as many questions as you would like. It helps if you check the search engine to see if a topic has already been covered in detail, but I will review topics again if a subscriber requests information.
Once again, we do appreciate your support in our endeavor to provide a good source of veterinary information on the World Wide Web.
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Opinions expressed are solely those of Michael Richards, DVM, author.
This page was last edited 06/15/04
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