BY KERRI WIEDMEYER, DVM, WVRC

There are many factors that determine how much water a dog drinks in a given day, but if you notice that your dog is drinking bowl after bowl, there may be a cause that warrants investigation.

Thirst is regulated by several different components in the body including blood vessel volume, parts of the brain (pituitary gland, thirst center, hypothalamus) and the kidneys. For example, if a dog is dehydrated, hormones are released from the brain that communicate to the kidneys to keep water in the body and activate the thirst center. If a dog is urinating excessively, the body then responds by having the dog drink more to make up for that loss of water. Unfortunately, certain diseases can interfere with how thirst and urination are regulated, causing your dog to gulp down bowl after bowl of water. Below is a list of a few of these causes.

Kidney Disease: The function of the kidneys is to filter blood and balance electrolytes. They also regulate blood pressure and red blood cell production. Kidneys can become damaged for a multitude of reasons such as chronic disease, infection, toxins or cancer. When they become damaged, they cannot do their job properly and excessive urine is produced. Excessive urination then leads to excessive drinking.

Diabetes Mellitus: Diabetes occurs when there is not enough insulin produced to regulate glucose in the body. This results in excessive amounts of glucose in the bloodstream. When the glucose is excreted from the body, water follows it, producing excessive urine. As with kidney disease, the excessive urination causes excessive thirst/drinking.

Cushing’s Disease (Hyperadrenocorticism): Cushing’s is a disease in which the body overproduces cortisol. Cortisol, in turn, blocks other hormones from doing their job and results in excessive urination and, thus, excessive drinking.

Liver Disease: The liver has many different jobs including protein and hormone production, detoxifying the blood, and metabolism of fats, carbohydrates and drugs. As a result, if the liver is failing, there are several different pathways that can lead to a dog urinating excessively and drinking excessively.

Medications: Unfortunately, some of the medications prescribed for our pets can have side effects that make them drink and urinate more frequently. Examples include steroids, diuretics that are commonly used for heart failure treatment and some anti-seizure medications.

Psychogenic Polydypsia: Psychogenic polydypsia is drinking excessive water without any underlying cause or illness. Many think this is done from boredom or for attention, but it is overall a very rare cause for excessive thirst.

If this sounds like your beloved pup, then consider having him or her checked out by your veterinarian.

BY MEGAN TREMELLING, DVM, LVS

Warm weather is back, and dogs all around Wisconsin agree that the best possible way to enjoy it is to go for a swim in our nearly one million acres of fresh water. If you work in a veterinary clinic, you know when the time has come by the aroma of wet fur and dead fish that clings to about 10 percent of your patients. (More if you see a lot of Labradors.)

Swimming is a wonderful activity for dogs. Most of them seem to love it. Indeed, some dogs can hardly be kept out of water when it is available, and water retrieving and dock diving are favorite pursuits for many. Swimming causes very little impact to the joints, which makes it ideal for dogs with musculoskeletal disease or injury. Many dogs that develop joint pain after running and playing on land can tolerate a good deal of swimming with no discomfort. And while it is possible to overdo swimming, like any other exercise, a dog is unlikely to stumble, fall or otherwise injure his limbs. Swimming burns off an enormous amount of energy and is invaluable for those dogs that need a lot of hard exercise to keep them out of trouble.

Unfortunately, taking a dip can have its downsides. Not all dogs can swim. Most of them can manage a dog paddle, and some swim very well. However there are a few who are just too anxious or awkward. Dogs with big heads, like Boston Terriers, are not particularly seaworthy and tend to sink headfirst unless they are strong and determined enough to keep their balance. Dogs with very short faces, like those aforementioned Bostons as well as Bulldogs and Pugs, sometimes have a lot of difficulty breathing even on dry land and may find that the challenge of splashes and brief submersions is more than their breathing can handle. Owners who take their dogs swimming are cautioned to watch them carefully at all times, to call it quits when the dog is getting tired and always be aware for signs of distress. Don’t let your dog swim in rough water. Flotation devices for dogs do exist and should be used as needed, but they are no substitute for vigilant supervision.

Dogs have a tendency to swallow water when they swim and play in it, and this can become a problem. Open water, of course, may contain dead fish, debris, and other things that your dog shouldn’t be ingesting. Shallow lakes and ponds are especially prone to overgrowth with blue-green algae, which can be poisonous to your dog. Pool water usually contains chlorine or other treatments. And even perfectly clean water can be harmful when consumed in enormous excess, resulting in vomiting or metabolic disorders that can be fatal. Do make fresh water available to reduce your dog’s urge to drink potentially contaminated water. Never allow your dog to swim in water that is deep green or contains obvious algae mats. And if your dog is the type that just can’t stop slurping up the water, you will need to put limits on his access to it.

If your dog has allergies or very sensitive skin, swimming should be considered with caution. Moisture can trigger inflammation and yeast infections, especially in ears and on feet. That doesn’t necessarily mean your dog can’t swim, but you will need to take extra caution to rinse her clean afterward, make sure her coat is thoroughly dried, and watch carefully for any evidence of skin or ear problems. See your veterinarian if you notice any skin that is red or oozing, or if your dog is licking excessively or shaking her ears. Your veterinarian may be able to make a plan that will allow your dog to enjoy the water without triggering skin problems.

Lastly, dogs that swim are at risk for a mysterious ailment that was never on the curriculum in veterinary school. Known by various names such as “cold tail” and “limber tail,” it seems to be a sprain or strain of the tail muscles, and occurs in dogs after vigorous activity or exposure to cold weather. Swimming in cold water definitely qualifies. The classic presentation is a Labrador that has spent the day swimming seems fine when he gets out of the water, then is found to be in significant pain a few hours later. The tail hangs limply, as if broken. It is worth seeing a veterinarian to make sure the dog doesn’t actually have a broken tail or other serious injury, and to provide some pain relief, but limber tail isn’t a serious problem. With some rest, the Labrador will soon be sweeping coffee tables clean, as good as new… and ready to get back in the water.

By MEGAN TREMELLING, DVM, LVS

The practice of medicine is always evolving. Like other forms of science, it follows a meandering path, sometimes getting lost in false trails and dead ends but always working toward better understanding, better accuracy, better tools and better outcomes. It can be frustrating for researchers to struggle for years to understand a thing or to find out that something we thought we understood was actually wrong, but the trend is always positive eventually. Nowhere is this more clear than in the state of care for type 1 (insulin-dependent) diabetes mellitus, which occurs in dogs as well as in humans.

Diabetes has been known to physicians since ancient times, but it was not until the 1700s that scientists began to understand how the disorder worked, and it was not until the 1920s that insulin was named, isolated and purified to a degree that it could be used to treat diabetes effectively.

Dogs have long been part of diabetes research. The Canadian researchers who first developed the use of insulin worked with dogs before attempting the treatment on humans. Unfortunately, dogs’ early role was exclusively as research subject. In the days before animal welfare regulations were enacted, dogs could and did suffer terribly for the sake of knowledge. The silver lining to this grim cloud is that as companion animal medicine became more established, the knowledge gained could be applied to pets as well as to their owners. By the 1940s, veterinary journals were reporting on the diagnosis and treatment of naturally occurring diabetes in dogs. As the care for humans with diabetes has improved, so too the care for pets with diabetes has improved.

For the management of human diabetes, several types of insulin are made, varying mostly in how quickly they are absorbed and how long they last. This allows veterinarians some options in the choice of insulin therapy for dogs.

Another important development in diabetes care has been an improved ability to measure glucose levels in the urine and, later, in blood. Now, instead of choosing insulin doses on the basis of clinical signs, doctors can calculate appropriate doses of insulin that are customized to their patients. For many years, humans with diabetes have used home blood glucose monitors, obtaining small samples of blood from their fingertips with lancet devices designed for the purpose. It is an unpleasant but very beneficial part of diabetes management, and all humans with diabetes who have access to modern medical care are taught to do it. Unfortunately, home monitoring of blood glucose in pets has not become universal.

The obstacles to home monitoring of blood glucose in dogs are several. In the first place, obviously, dogs don’t have fingertips. It is possible for an owner to obtain blood samples at home, using the lancet devices on their dogs’ ears or pads, though some dogs tolerate this procedure better than others. The second challenge, and perhaps more important, is that it can be challenging for veterinarians to teach owners how to correctly interpret the data they obtain. Humans with diabetes get immediate feedback in the form of their physical condition. Low blood glucose and high blood glucose both cause symptoms that often can be recognized and treated before they become too severe. While we think it likely that dogs can feel their lows and highs in a similar fashion, they can’t tell us about it. This means that attempting to keep their blood glucose under very tight control can backfire and cause more serious problems. I know veterinarians who refuse to have their clients check blood glucoses at home because too many clients in the past have misinterpreted the data and caused inadvertent harm to their pets.

How then do veterinarians manage pets with diabetes? We rely on clinical signs and some in-hospital testing. A test called a glucose curve requires the pet to spend the day at the veterinarian’s office having blood drawn frequently for glucose testing; then the veterinarian assesses the information and makes recommendations on how to dose insulin. This test has some serious limitations. A glucose curve paints a picture of one day only, while dogs, like humans, vary day to day, so the glucose curve may give too small a picture. We also use a blood test called fructosamine (similar to the A1C test used in humans) that gives one number to reflect average blood glucose over several weeks, but that may be too big a picture; it doesn’t give details about what time the glucose decreases, how long it stays down or when it goes up.

Enter the newest development in canine diabetes management: continuous glucose monitoring.

Continuous glucose monitors (CGM) have been used for humans for years. They consist of a tiny sensor that is implanted under the skin along with the accompanying equipment to record the information obtained. Glucose readings can be obtained about every five minutes. Many humans with diabetes wear a CGM every day, using the constant stream of glucose readings to guide their insulin therapy. In some cases, the CGM can be paired with an insulin pump so that the human doesn’t even have to intervene to treat highs and lows; it is done automatically.

Recently, veterinarians have begun to adopt the use of CGM for their patients. There were some bugs to work out since some of the systems designed for human use did not work well on veterinary patients, but improvement has been made, and there are now CGMs that are proven to be accurate in dogs, small enough to be used on even tiny dogs, and affordable for owners. There is no need for a dog to wear a CGM all the time. Rather, veterinarians place a CGM on a patient and leave it for a few days to a week, collecting data as the dog goes about its usual routine at home. Then the veterinarian can use all this information to make better recommendations about insulin use.

CGM is blazing new trails in the care of pets with diabetes. We can hardly wait to see what the next technical breakthrough brings us!

By MEGAN TREMELLING

Nobody wants fleas and ticks on their dog. Even people who don’t like spending a lot extra on caring for their dogs don’t want those parasites getting into their homes and biting the humans. Therefore, valuing your dogs’ health and comfort and preventing external parasites is an important part of their overall care. Many people were worried to hear that the FDA had issued an alert in September about a potential danger associated with some flea and tick products that are part of the isoxazoline group: Nexgard (afoxolaner), Bravecto (fluralaner), Simparica (sarolaner) and Credelio (lotilaner).

What exactly is the problem? It seems that some dogs that have been treated with isoxazolines have developed neurologic symptoms, including tremors, ataxia (wobbly gait) and seizures. It is important to understand that millions of doses of these medications have been given to dogs, and that the fact that some dogs developed neurologic signs does not prove that the symptoms were always, or ever, caused by the medication. After all, some of those dogs probably broke a toenail after receiving the treatment, too. The reason this is different is that it is possible that in some cases the medication did cause the problem. We just don’t know enough to be sure. As with every new group of drugs, pre-release clinical studies can only teach us so much, and we learn much more when the medications are approved and used in large numbers of pets with a wide variety of concurrent medical conditions and medications on board. The FDA has more data on these medications than anyone else, and so far their official word is that “the isoxazoline class [is] safe and effective for dogs and cats.”

To get to a more complete understanding, veterinarians are researching possible adverse effects from isoxazolines and similar drugs, including neurologic changes and vision changes. In the meantime, for very young dogs and for dogs that have a history of seizures, tremors, ataxia, or vision loss, isoxazolines may not be the best choice. For dogs with no history of those problems, there is less reason to believe that these medications cause any significant danger.

As with so many things in life, all medical treatments come with risks and benefits. Veterinarians think in terms of minimizing risk because it is impossible to eliminate it. Isoxazolines have the advantage of being very convenient and very effective at killing fleas and ticks and, for most dogs, the benefits far outweigh the risks. I use one for my own dog.

Of course, if you are not comfortable using an isoxazoline for any reason, you should talk to your veterinarian about whether it is the right choice for your dog because many other options exist, with their own benefits and risks. If you think your dog may be having problems caused by an isoxazoline, you need to talk to your vet about that, too. It isn’t as simple as saying “it’s safer not to give the medication” because most of the time that just isn’t true. The benefits of flea/tick medications are enormous and very well documented; they reduce sickness and death from very common diseases that are transmitted by these parasites.

Stories like these sometimes cause people to reach for “natural” remedies in hopes that they will be safer. Unfortunately, they can be, in some cases, far more dangerous than carefully-tested and properly-prescribed medications. Herbal extracts and essential oils may have their uses, but flea and tick control is not among them. On the other hand, harmful effects, including death, are well-documented, especially when used incorrectly. Safety aside, I do not condone putting anything with a strong smell on your dog if you can help it. A dog’s nose is so sensitive that applying any strong smell to their bodies, where they cannot get away from it, is unlikely to be appreciated.

You may feel that your dog is at low risk for getting fleas and ticks, but if he ever sets paw on the ground or comes in contact with dogs that do, then he has the potential to be exposed to them no matter how meticulous your yard care. Never seen a flea or tick on him? You might not; they are pretty good at hiding. However your veterinarian can tell you whether you have a problem and help you find the solution that is right for your pet.

By MEGAN TREMELLING, DVM, LVS

This summer, a Wisconsin woman died of an infection caused by a bacterium called Capnocytophaga canimorsus, and a Wisconsin man suffered serious illness requiring multiple amputations from the same organism. The infections are believed to be derived from contact with family pet dogs. This is scary stuff for those of us who share our lives with dogs, but there is no need to panic about Capnocytophaga.

Capnocytophaga species are found in the mouths of healthy dogs, cats, and humans. Normally it does no harm, but under certain circumstances, it can cause disease. Studies estimate that up to 74 percent of dogs and up to 57 percent of cats have Capnocytophaga living in their oral cavities. In short, if you have a dog, odds are very good that it carries Capnocytophaga.

In spite of how common Capnocytophaga is, however, serious infections are exceedingly rare. Nobody knows exactly how many cases occur, but the Centers for Disease Control and Prevention (CDC) received only 12 case reports in 2017, and only about 200 cases have been reported worldwide since this type of bacteria was first identified in 1976.

Capnocytophaga infections can be transmitted by bites from dogs or cats, or through close contact with an animal, especially contact with its saliva. Since humans also frequently carry Capnocytophaga, it is possible to develop an infection without any animal exposure.

Most of the time, Capnocytophaga is not your main concern after a dog or cat bite. Other bacteria, such as Pasteurella, Streptococcus, and Staphylococcus, cause many more infections. Rabies is uncommon in the United States but is so deadly that any possibility must be taken very seriously. Lastly, deep puncture wounds of any origin can result in tetanus.

When Capnocytophaga does cause problems, they can vary widely. Local cellulitis (tissue swelling, redness, and pain) is the most common finding associated with bite wounds contaminated by Capnocytophaga. In more serious cases, the bacteria can spread to other parts of the body such as the heart, brain, or joints. When the infection affects the whole body in a condition called sepsis, there can be long-term effects from infection, including gangrene that necessitates amputations; heart attacks; or kidney failure. About 3 in 10 people who develop sepsis due to Capnocytophaga will die.

Most people who are exposed to dog saliva don’t get Capnocytophaga infections because their immune systems protect them. However, there are factors that can affect your immune system’s ability to keep you safe. One of the most serious risk factors is having had your spleen removed as a result of an injury or illness. Other risk factors include alcohol abuse, old age, or immune compromise due to disease such as cancer, diabetes, or HIV, or taking certain medications such as chemotherapy or glucocorticoids. Some people do get sick with no known risk factors.

Capnocytophaga infections are hard to test for. The bacteria are very difficult to grow in a lab. Fortunately, new technologies such as PCR amplification and gene sequencing are becoming increasingly useful for identifying challenging organisms like Capnocytophaga. The good news is that Capnocytophaga can be treated with common antibiotics, and so far antibiotic resistance isn’t a big problem. However, treatment must be started quickly, without waiting for a lab to confirm the infection.

There are ways to reduce your risk of a Capnocytophaga infection. Don’t let your pets lick faces, wounds, or irritated skin, and wash with soap and water after handling your animals. Minor bite wounds should be washed thoroughly with soap and water. See a health care provider if the wound is deep or serious; if it becomes red, painful, warm, or swollen; or if you feel feverish or weak. You should also see a doctor if the dog was acting strangely or is not known to be vaccinated against rabies. Most people who are going to become ill with Capnocytophaga will do so within 3 to 5 days after exposure, but it can take as little as a day. If you have any risk factors such as immune compromise, you should see your doctor right away for any bite wound that breaks skin, even if you don’t feel sick.

By MEGAN TREMELLING, DVM, LVS

Ever since humans realized the value of animals, we have wanted to provide some kind of medical care to keep them healthy. And for as long as medical care has existed, people have realized that what works for humans does not necessarily work for animals. However, the importance of veterinary medicine to human health has always been clear.

Veterinary medicine is as old as written history, with Sumerian texts making reference to doctors who treated oxen and donkeys. At the time, illness was believed to be due to malign spiritual forces, and seers and priests were considered to have a role to play in protecting the health of both humans and animals. However, clinical practitioners had developed a tradition of practical medicine in spite of them.

One of the earliest veterinarians, in the sense of a healer who treats animals but not humans, was Shalihotra, son of Hayagosha, said to have lived in Uttar Pradesh, modern India, sometime in the 3rd millennium BCE. The Sanskrit work credited to him is a large treatise on the care and husbandry of horses, including notes on the anatomy of elephants. He was one of many writers in the Indian tradition that discussed veterinary science and may have been trained by the same teachers who laid the foundations for Ayurvedic medicine in humans.

Legend has it that the Chinese veterinarian Zhao Fu was practicing on horses during the Western Zhou dynasty in the 10th century BCE. Unfortunately, he was performing bloodletting procedures that have not stood the test of time. Textbooks of traditional Chinese veterinary medicine were produced regularly and discussed the use of acupuncture and herbal medicine.

By the time of the Roman Empire, veterinarians were recognized as professionals whose work was important enough to the state that they were exempted from public duties, like architects and physicians. The most important veterinary work at that time was the care of horses because they were important to the Roman military, to the post and to the huge horseracing industry.

Modern Western veterinary medicine is usually dated to 1761 when Claude Bourgelat founded the first European veterinary college in Lyon, France. The idea of improving animal care by training practitioners with rational scientific principles soon caught on. Veterinary schools began opening around the world. Daniel Salmon who spent his career in public health and identified the bacterium Salmonella earned the first DVM degree granted in the United States in 1872.

Working in clinical practice or public health, as many veterinarians do, does not lend itself to fame and fortune. Many of the most prominent veterinarians are people whose names are not familiar to the average person, although their work has freed us from diseases that have plagued humans since antiquity. In 1892, Leonard Pearson introduced tuberculin testing to the American dairy industry. In the 1920s, Swiss-born veterinarian Karl Friedrich Meyer developed safe canning procedures for food, saving many from botulism. French veterinarian Camille Guérin worked with physician Albert Calmette to develop one of the first vaccinations against tuberculosis for humans in 1921.

In recent years, American veterinarian James Thomson developed the first human embryonic stem cell line. Australian veterinarian Peter C. Doherty won a Nobel Prize for his research in immunology. Two veterinarians have gone into space, including Martin J. Fettman, a veterinary clinical pathologist who flew on a NASA mission in 1993, and Richard M. Linnehan, who undertook no less than 4 space flights from 1996 to 2008.

Many veterinarians have written about their experience. Most famous of course was Alf Wight, who wrote under the pen name James Herriot. His endearing stories of mixed animal practice in the Yorkshire Dales in the 1940s, published in a series including “All Creatures Great and Small,” inspired innumerable young people to pursue veterinary medicine (your correspondent included) and were made into 2 films and a television series. Louis J. Camuti and Baxter Black are two other veterinarians who have charmed audiences with their writing.

Of course, there are many veterinarians who have turned their talents from practice to less clinical fields. They have served in the U.S. Senate and the Cabinet. The first President of the Gambia was a veterinarian, Dawda Jawara. John Boyd Dunlop, who developed the first practical pneumatic tire in 1887, was a veterinarian. Peter Ostrum, who as a child played Charlie in the original Willie Wonka and the Chocolate Factory movie, is now a large animal veterinarian in New York. Debbye Turner, who took time out from veterinary school to be Miss America in 1990, is a popular TV host and motivational speaker.

Finally, in case there remains any doubt that veterinarians have greatly contributed to the quality of life for humans as much as for animals, no review of famous veterinarians would be complete without a mention of Elmo Shropshire, famous for recording the immortal Christmas song, “Grandma Got Run Over By a Reindeer.”

Did you know that 12 million cats and dogs are diagnosed with cancer every year? With new advancements in veterinary medicine, veterinarians can now diagnose and treat cancer with greater success. There are even veterinary cancer specialists who can provide expert cancer care to your pet. Early detection is crucial when it comes to cancer. Cancer is the number one cause of disease-related deaths in older cats and dogs, and detecting cancer early can make all the difference in the life of your pet.

For young and adult pets, schedule annual visits with your family veterinarian for a full checkup. For older or senior pets, schedule checkups every six months. Animals age quickly, and regularly-scheduled checkups will allow your vet to determine any changes in your pet before they may become severe issues.

Look for these early warning signs of cancer.

Be observant of any changes in your pet’s physical appearance and behavior. Not all cancer warning signs are apparent right away, with some changes developing over time.

Here are the top 10 warning signs of cancer in cats and dogs. If you notice any of these, contact your veterinarian to check things out as soon as possible. Depending on the cancer type and stage, your pet’s health can deteriorate very quickly, so it’s always best to get an exam. When in doubt, get it checked out.

1.) Enlarged or Changing Lumps and Bumps
Once or twice a month, take a few minutes to feel your cat or dog’s body for any lumps, bumps or abnormal swelling. Check for swollen lymph nodes, which can be a sign of lymphoma. Lymph nodes are located throughout the body but most easily detected around the jaw, shoulders, armpits, and behind the legs. Make a note of any bumps (their size and location) to make sure they aren’t growing or changing shape over time.

2.) Sores that do not Heal
If your pet has an open wound that will not heal, it could be a sign of something more serious, such as an unresolved infection or cancer. Tell your veterinarian as soon as possible and have it checked out.

3.) Chronic Weight Loss or Weight Gain
If there is no change in the diet or food, but your pet is gaining or losing weight, this could be a sign of illness. Weight loss or weight gain can indicate a possible tumor in the stomach. Another related symptom could be chronic vomiting or diarrhea.

4.) Change in Appetite
Is your dog or cat eating more than usual? Eating less than normal? Are they trying to eat foods they were previously uninterested in? Drastic changes in your pet’s appetite could be a sign of cancer.

5.) Persistent Cough
There are many reasons why dogs might have a persistent cough. For younger pups that were recently adopted or placed in boarding, a persistent cough could be a sign of kennel cough. In older dogs, a dry persistent cough could indicate a tumor near the heart or lung cancer.

6.) Persistent Lameness or Stiffness
You may find that your pet is limping on one foot or no longer wants to walk or exercise. Persistent lameness or stiffness can be a sign of osteosarcoma or bone cancer.

7.) Unpleasant Odor from the Mouth
A foul smell from the mouth can be a sign of oral cancer. Not all pets that have oral cancer exhibit pain or have trouble eating, so it is a good idea to consult your veterinarian if they have persistent bad breath.

8.) Difficulty Breathing, Eating or Swallowing
A tumor in the mouth or neck can put pressure on the area and make it difficult for your pet to eat or drink. A tumor near the esophagus, nose, or lungs can block airways, making it harder for your pet to breathe.

9.) Difficulty Urinating or Defecating
Dogs and cats can develop tumors in their urinary tracts, which can make it difficult to urinate. Similarly, if you see your pet is having trouble defecating or there is a sustained foul odor from the rear, a mass near the anus may be the culprit.

10.) Bleeding or Discharge from Any Opening
Consult your veterinarian if your pet experiences any unexplained bleeding or discharge from any opening. Bleeding is a common sign of cancer and other illnesses. Oral cancer can cause gums to bleed. Nose cancer can cause the nose to bleed.

Regular wellness exams will provide your veterinarian the opportunity to check for signs of cancer, but you can take a more proactive approach to your pet’s health by looking for these warning signs regularly. Your furry family members depend on you to keep them healthy for as long as possible. And they’ll be sure to thank you for catching their cancer early with cuddles, love, and loyalty!

Courtesy of PetCure Oncology

By KERRI WIEDMEYER, DVM, WVRC

Bloated may be how we all feel after a nice holiday meal, but Bloat in a dog is a very different kind of bloat. Bloat, otherwise known as gastric dilatation and volvulus (GDV), is a very serious condition that occurs when the stomach fills with gas and then rotates, causing further distension and a series of severe complications.

How Do Dogs Get Bloat?

That is the million-dollar question. No one knows the exact cause of bloat; however large breed, deep-chested dogs are more likely to bloat than other breeds. Older dogs are also more commonly seen with bloat than younger dogs. In some cases, eating or drinking large amounts and then being active is thought to cause bloat. There is also thought that eating out of elevated food dishes may increase chances of bloat as dogs may swallow more air when eating.

Unfortunately, there are many times when dogs present with bloat with no predisposing cause; and, although it is much less common, small breed dogs can bloat.

What Does Bloat Look Like?

Dogs with bloat can be restless and unable to get comfortable or lay down. They will hypersalivate/drool and try to vomit, but nothing will come out. They can have very distended abdomens that can be very painful. They may also have very fast heart rates and changes in breathing. In severe cases, they may collapse or be unable to stand. It is very important that if you see any of these signs that you have your dog evaluated by a veterinarian immediately. As veterinarians, we understand that each dog can show different variations of these signs; if there is any concern, an owner can always call a veterinary clinic and ask their opinion.

Why is Bloat an Emergency?

Bloat sets off a cascade of damaging events to the body. As the stomach fills with air, it expands and starts to cut off blood returning to the heart. The expansion of the stomach then puts pressure on the diaphragm, making it difficult for the dog to breath. The stomach then starts to rotate, cutting off the blood supply to the stomach. When the stomach rotates, it can entrap the spleen and thus cause damage or cut off blood supply to the spleen and even rupture blood vessels. All of these changes lead to the dog going into shock. Blood pressure drops, arrhythmias and internal bleeding can occur as well as sepsis. Unfortunately, death can occur in a matter of hours if bloat goes undetected and untreated.

All of these changes happen very quickly, which is why it is so important for an owner to recognize the signs of bloat and get them to a veterinarian as soon as possible.

How do you Treat Bloat?

Unfortunately, there is nothing that an owner can do at home. It is imperative that the dog gets to a veterinarian as soon as possible. Typically, a radiograph will be performed to diagnose a GDV. These dogs then require pain medication, intravenous fluids and emergency surgery immediately. The surgery consists of de-rotating the stomach back to its normal position and then tacking it to the body wall. This is called a gastropexy. If the spleen was involved in the twisting, then it may have to be removed as well. Even after the surgery is performed, these dogs are not out of the woods. There are many complications that can still arise after surgery and it is very common for these dogs to be in the hospital for multiple days. As many as 15 to 30 percent of dogs will not survive bloat even with immediate care and surgery.

Preventing Bloat

Today many people are putting their minds at ease early on by getting prophylactic treatment done. If you own a large breed dog that is more likely to bloat, a gastropexy can be performed when the dog is spayed or neutered.

This procedure will not prevent the stomach from distending with gas, but it will prevent the stomach from twisting/ rotating. The “twisting” is what makes a GDV a surgical emergency. Preventing this by tacking the stomach at an early age will likely save an owner from some sleepless nights and an expensive emergency surgery.

Other considerations to try and prevent bloat are feeding several small meals a day, discouraging drinking large amounts of water at one time, allowing some time between eating and activity, and feeding on the floor.

Hopefully knowing some of these preventative tips will decrease the chances of your furry family member bloating; however, if you see the signs listed above do not wait! Get that loved one to a veterinarian.

By MEGAN TREMELLING, DVM, LVS

In January, someone tried to take a peacock on a United Airlines flight, claiming it was an emotional support animal (ESA). Last June, a 50-pound dog that was traveling on Delta as an ESA badly mauled the face of another passenger. So much for the friendly skies.

Don’t get me wrong here. I’m not opposed to the idea of ESAs. Animals can be an incredible balm to the human psyche even when it is in perfect working order. Mental health is extremely complex, and if somebody needs their dog with them to be able to manage, I’m not going to criticize. Fortunately, the TSA views ESAs as aids that allow people to live their lives, going a step beyond the job of “pet,” and so ESAs are allowed in airports and airplanes. Traveling with a disability can be challenging enough without the airlines placing undue burdens on the people who need these animals to get by.

On the other hand, when an airplane cabin starts to resemble a petting zoo, and passengers are being taken away by ambulance, clearly there is a flaw with the system. A big part of the problem, of course, is the irritating phenomenon of people pretending their dogs are ESAs, or even service animals, when they really aren’t.

Why would someone pretend to have an ESA or service dog, instead of admitting that their dog is a pet? For one thing, traveling with a pet can be challenging. People are understandably wary of putting their pets in cargo, given some tragedies that have occurred there. Whether in cargo or in the cabin, there are fees to be paid, and the airline may turn your pet away if there are already too many animals on the flight. ESAs and service dogs, however, sometimes travel for free, and are more likely to be accommodated in the cabin regardless of the number of animals on the airplane or the size and weight of the dog.

This does not change the fact that pretending your pet is an ESA is clearly unethical in all cases, and is criminal in some areas. There is quite simply a limit to the number of animals that can fit on a given airplane before things get disruptive. Like disabled parking permits, those spaces should be reserved for people who actually need them.

In an attempt to reduce abuse of the system, some airlines have begun to use more stringent restrictions on ESAs. Delta, for example, has quite an extensive list of animal species that are not permitted on board. United now requires customers with ESAs to bring “a veterinary health form documenting the health and vaccination records for the animal as well as confirming that the animal has been trained to behave properly in a public setting.”

Owners are notoriously bad at assessing their own animals’ behavior, so I can see why the airlines want to get a third party to vouch for the dog, but many veterinarians are wary of going on record stating that their patients have been trained to behave properly. For one thing, even a dog that is well-mannered under ordinary circumstances may find the conditions on an airplane to be a little much. Let’s face it, after standing in line at security, navigating the hubbub of the airport, and then getting squeezed for hours into a cramped space that makes deafening noises and ear-popping pressure changes, even the humans are just about ready to bite somebody. There is no way that I or any other veterinarian can tell whether a dog that behaves nicely in the clinic will continue to do so in flight.

People who genuinely need ESAs will be the ones to suffer if they can’t produce the paperwork the airlines now expect. Even service dogs from an accredited training program, which are expertly-trained to tolerate quite challenging conditions without causing trouble, may find it hard to get on board.

It remains to be seen how to best balance the needs of people with disabilities who rely on their animals to function and the other passengers’ basic expectation of reasonable safety. Veterinarians, representatives of the air travel industry, and disability advocates are attempting to work together to find a way to ensure that genuine service dogs and ESAs are accommodated without putting other passengers at risk. But one thing is clear: pretending your pet is a service animal is not okay.

By KERRI WIEDMEYER, DVM, WVRC

Getting a new puppy is a very exciting time in anyone’s life!

It can be such a fun time with much to consider and learn: when to vaccinate, how to train them, what to feed them, etc. But before you even bring that bundle of joy into his or her new forever home, you may have to do some puppy proofing.

Environment

It is very important to make the puppy’s environment safe, and it is similar to baby proofing your home. Use baby gates to keep the pup in or out of rooms. Hide electrical cords, and keep them out of reach. Consider crate training your puppy to keep them both safe and as a potty training tool. Puppies should never be left unsupervised with toys or bones as they may choke or swallow them. Puppies may also try to chew or eat non-edible items in the house, such as clothing items, furniture, carpet, etc. Proper training is very important to avoid such problems.

Toxins

Foods. This is not an all inclusive list, but these are some of the more common foods that are either toxic or cause problems in our pets

  • Chocolate and coffee can cause GI upset, arrhythmia, seizures, potential death
  • Grapes/raisins can causes kidney failure
  • Xylitol products (sugar-free gum and other sugar-free products) can cause hypoglycemia, liver failure
  • Macadamia nuts can cause lethargy, lameness, CNS depression
  • High fat foods can cause GI upset and pancreatitis
  • Fruits with pits can cause GI obstruction
  • Chicken/turkey bones can cause possible GI perforation and upset
  • Moldy garbage can cause GI upset, tremors, seizures
  • Onion/garlic can cause anemia

Medications/Drugs. Alcohol, marijuana, over-the-counter human medications and prescription medications should never be given to dogs or cats without consulting a veterinarian. Also, animal medications should never be given to an animal that they are not prescribed for as this could result in unforeseen complications or illness.

Household products. Once again, this is not an all-inclusive list, and these are items that commonly are ingested, as they may taste good.

  • Rat poison. There are several different kinds: Anticoagulants can cause bleeding, Bromethalin can cause severe neurologic problems
  • Cholecalciferol can cause Vitamin D toxicosis
  • Antifreeze can cause kidney failure
  • Household cleaners (effects vary depending on the product)

House plants: All plants should be investigated if your pup is going to be around them. This is just a short list of common plants.

  • Sago Palm can cause GI upset and liver failure
  • Oleander, Foxglove, Lily of the Valley, Milkweed (can be toxic to the heart)
  • Rhododenrons can cause GI, cardiovascular and neurologic signs
  • Araceae family can cause oral irritation, GI upset, rare respiratory disease

As stated above, these lists are the most common items that we see causing problems. If there is any concern about something a new puppy gets into, please contact your veterinarian to be certain. Now that you have a better idea of how to maximize the safety of your new addition to the family, do not forget to have fun and enjoy every minute with your new puppy!