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Newtown Veterinary Specialist
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Newtown, Veterinary, Emergency Care, Speciaists, Fairfeild County, NVS, Connecticut
Newtown, Veterinary, Emergency Care, Speciaists, Fairfeild County, NVS, Connecticut

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Dutchess Visits Newtown Veterinary Specialists

Dutchess, a beloved therapy dog who lost her vision to eye disease, recently visited Newtown Veterinary Specialists for a follow-up examination. A spunky 10-year-old Golden Retriever, Dutchess first met our board-certified veterinary ophthalmologist, Dr. Cory Mosunic, in the summer of 2010. At that time Dr. Mosunic diagnosed Dutchess with a serious eye disease called pigmentary uveitis and immediately prescribed therapeutic medications to slow the progression of the disease. 
Unfortunately, the disease eventually stopped responding to medications and her vision slowly deteriorated. As a result, her eyes became increasingly painful. To eliminate her pain, Dr. Mosunic performed surgery to remove both eyes in the winter of 2011. 
Dutchess is Dr. Mosunic’s hero! She’s amazed by the blind dog’s courage and kindness in continuing her very important therapy work with children and adults with autism as well as the elderly in nursing homes. We were so pleased that Dutchess made a great recovery from surgery and was back at work just three weeks later! According to her owner and handler, Mark Condon, “her blindness has not dampened her joyful and generous personality.” 
Many people may not know that blind dogs can get along quite well as long as they’re pain free. As she was gradually losing sight, Mark taught her new commands such as stop, step up and step down on the curb, which helped her adjust to being blind. Because their other senses are so keen, dogs can navigate around without sight, especially in familiar surroundings, relying on tactile clues from their paws and whiskers. 
A dog’s sense of smell can even improve with loss of vision. For example, Dutchess was performing “nose work” to track scents prior to her blindness. However, after her loss of eye sight she has become even more successful in competitive canine nose work, which Mark says she enjoys immensely. 
Dutchess’ recent visit to NVS was planned weeks in advance, but it couldn’t have come at a more poignant time. Our town had just suffered the devastating tragedy at Sandy Hook only four days earlier. Dutchess got right to work doing what she does best: spreading warmth and love and bringing a little comfort to a few people at the memorial site that day. To learn more about Dutchess, visit her web page at www.dutchessthetherapy dog.com.
Some warning signs of eye problems in dogs include squinting, redness or tearing/discharge. If you have concerns about your pet’s vision please feel free to contact our ophthalmology service at 203-270-VETS (8387).
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Medical Corner


Cold Weather Warning: The Dangers of Antifreeze (Ethylene Glycol)  

As we head full steam into the cold weather season, many people are starting to winterize their homes and property. Winter preparations often include adding fresh antifreeze to car radiators. Unfortunately, many people don’t realize the serious dangers antifreeze presents to pets.
 
Sadly, the Humane Society estimates that 10,000 animals die annually from highly preventable antifreeze poisoning. To help keep pets safe this season, Newtown Veterinary Specialists issues the following warnings and advice:

Ingestion of antifreeze or ethylene glycol (EG) is a true medical emergency as it can result in acute kidney failure and death. Seek immediate veterinary attention if you suspect that your pet has ingested antifreeze!

Five steps to antifreeze poison prevention:
 
1.    Never leave antifreeze containers open, unattended or in reach of pets. Store it safely out of reach in tightly closed containers.
 
2.    Thoroughly clean up all antifreeze spills—even very small ones.

3.    Purchase antifreeze that contains a “bittering” agent that makes the antifreeze less tasty to your pet.  Massachusetts passed a law recently stating that retail antifreeze containers must include a bittering agent.  However, commercial antifreeze is not required to have it. Therefore, if you get your car serviced professionally be aware it may contain the “sweet” EG.

4.    Don’t let your pet roam unattended.  Cats should be kept indoors for maximum security.  Dogs should be leashed or kept in a fenced area.  Even if you don’t have antifreeze on your property, a pet can easily find leaks in parking lots, driveways, farms and near dumps.

5.    If your pets are outdoors, always make sure they have non-frozen water available to drink so they don’t turn to antifreeze instead.

Background

EG is a clear, odorless water soluble liquid used most typically in antifreeze solution.  It’s also used as an industrial solvent in the manufacture of detergents, paints and lacquers, polishes and other compounds.  Most antifreeze solutions contain upwards of 95% of EG.

EG is reported to have a pleasantly sweet taste and may have a warming sensation when swallowed.  Pets may ingest it for the flavor, out of curiosity, out of necessity (if water bowls are frozen over) or if they’re intentionally poisoned.

Both dogs and cats are susceptible to poisoning, but cats are more susceptible.  The minimum dose that is lethal in cats is roughly 1 tenth of an ounce per-pound body weight.  For dogs, 4 tenths of an ounce per-pound body weight may cause death.  Fatality rates for EG intoxication reported by top veterinary schools range from 44–70% for dogs and 78-96% for cats.

Diagnosis
 
Rapid diagnosis of antifreeze poisoning is crucial. Your veterinarian will start with blood and urine analysis.  Certain types of crystals may be seen in the urine and certain blood parameters such as serum osmolality and anion gap will be measured.  However, those specific blood and urine changes are not always seen. There are some commercially available test kits that can measure EG in the blood.  However, EG may no longer be present at 48-72 hours after ingestion.  Because most antifreeze contains a special dye to help find radiator leaks, your veterinarian can examine vomit and urine with a special light as an additional method for screening; however this is not always reliable.

Treatment
 
Treatments for treating EG intoxication are aimed at preventing absorption, increased excretion and preventing metabolism of the drug.  The current drug of choice for inhibiting metabolism EG into its dangerous metabolites is fomepizole (4-methylpyrazole).
 
If you would like more detailed information about the negative effects EG has on the body, then read on:

Metabolism

EG is absorbed rapidly from the gastrointestinal (GI) tract and distributed rapidly throughout all body tissues.  Serum levels can starting rising one hour after ingestion and are at their highest three hours after ingestion.  Usually by 48 hours serum levels are undetectable due to metabolism and excretion of the drug.   Unmetabolized EG is excreted by the kidneys into the urine.   The metabolism of EG occurs in the liver.

It was once thought that the unmetabolized form of EG might be toxic to pets.  The unmetabolized form of EG can cause central nervous system depression.  However, it’s now thought that byproducts of metabolism of EG result in most of the toxicity seen.   The metabolic by-products including glycoaldehyde, glycolate, glyoxylate, and oxalate all have slightly different properties that may contribute to toxicity.

Clinical stages

EG intoxication is classically described in three stages.  The signs owners may see can vary and are related to the amount the pet ingested.

Stage 1
The first stage occurs 30 minutes to 12 hours after ingestion and is associated with central nervous system (CNS) signs.  The following symptoms may be noted: “drunken” or wobbly gait, weakness, seizures, muscle twitching, low body temperature, head tremors, abnormal eye movements, coma and death.  Gastrointestinal symptoms such as vomiting may be seen.  Dogs (but not generally cats) will sometimes display excessive thirst.  Both species can be seen to urinate more than normal.

Stage 2
Stage two is characterized by changes to the heart and lungs; this stage is less well recognized in pets than in people.  Some cats may develop an enlarged heart.  Dogs and cats may also develop fluid in the lungs.

Stage 3
Stage three occurs within 24-72 hours of ingestion and is the stage where kidney failure is seen.  You may notice that your pet is not eating, vomiting or seems depressed.  Blood work can show elevations in kidney values.

Newtown Veterinary Specialists advises you to assist in the treatment of your pet by seeking prompt emergency care if you suspect antifreeze ingestion!

Further, you can help even more pets stay safe this winter by warning family members and friends about the serious dangers of antifreeze.

Our Town

All of us here at Newtown Veterinary Specialists are devastated over the tragic news of the shooting just down the street from our hospital. All of our people and their families were spared from what happened here in our town.

Our hearts go out to all the victims and their families. There are no words that can describe the feelings that we have experienced through out the day as police and ambulances streaked by our building. The Sandy Hook elementary school is just down the street from where we all work.

We would like to thank all our friends/clients, and family members who have reached out to us to offer their concern and help.  We are all prepared to do anything that is required to help those affected by this heinous act. As the hours pass we are here to help in any way we can.

Deb and Scott
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