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Transcript from this week’s episode of The Web-DVM:
Secondhand smoke has been implicated in the illnesses and even deaths of non-smokers. What’s even more disturbing is that smokers may have unknowingly contributed to severe disease in pets.
Most people understand that secondhand smoke from cigarettes contains an incredible number of hazardous substances and many of them are carcinogenic. These chemicals are found in high concentrations in carpets and on furniture around the home. Pets sharing this environment will get these toxins on their fur and then ingest them during normal grooming.
Dr. Ann Hohenhaus, a board certified specialist in veterinary internal medicine and certified veterinary journalist, has written that increased numbers of smokers and smoking in households corresponds with higher levels of the by-products of nicotine metabolism in pets sharing that home.
Research is now showing that our pets’ health is affected in ways similar to what is seen in humans.
In the early 1990s, researchers found correlations between nasal cancers in dogs and the presence of smokers in the home. There is also a concern that environmental tobacco smoke may increase the incidence of lung cancer in our canine friends as well.
Cats may actually be at higher risk for serious disease when they live in a smoking environment. As mentioned above, many cigarette smoke toxins settle to low levels in the home and cats will pick up these substances on their fur. Because of their fastidious grooming habits, cats end up ingesting a higher level of chemicals and this leads to a greater chance of several types of cancer.
Lymphoma is a cancer of white blood cells and is one of the most common cancers seen in our pet cats. When smokers are present in the cat’s household, the risk for this killer is increased by two or three times over cats living in non-smoking homes. Sadly, when our feline friends are diagnosed with lymphoma, the prognosis is very poor and many won’t survive another six months.
Another serious cancer with links to secondhand smoke is a cancer of the mouth known as squamous cell carcinoma, or SCC. Studies have linked a higher risk for SCC in cats living in smoking homes. Again, the prognosis is very grave and most pets won’t survive another year.
Of course, the best course of action is to give up the tobacco habit entirely. It’s not only best for the health of the smoker, it will also greatly reduce risks for pets. Understanding that it’s not easy to quit this addictive habit, people who smoke and have pets should attempt to minimize their pets’ exposure by smoking outdoors.
Another important thing to remember is that smoking in the car with pets can create a toxic environment, even with the windows open. If you must smoke when you drive, leave your pets and kids at home!
Pets who are developing illnesses from secondhand smoke may exhibit symptoms ranging from lethargy to coughing to the appearance of masses in the mouth. It’s important to have your pet seen by a veterinarian if any of these signs are noted.
This is Roger Welton reporting, forThe Web-DVM.
Dr. Roger Welton is the President and chief veterinarian at Maybeck Animal Hospital in West Melbourne Florida, as well as CEO of the veterinary advice and health management website Web-DVM.net.