How to Diagnose a Collapsing Trachea in Chihuahuas

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If your Chihuahua has episodes of choking, honking coughs, then it is possible he has a problem with his trachea, also known as the windpipe. There are other possible causes of a cough of this sort and many of these other issues are more common, so don't jump to any conclusions. Instead, get your dog checked out by your veterinarian. [1] If you think your dog has a problem, it is helpful to know what to be alert for and how your vet will make the diagnosis.

Method 1
Method 1 of 3:

Identifying the Symptoms of a Collapsed Trachea

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  1. The main sign of a collapsing trachea is a honking, dry type of cough. The cough may sound like a goose honking. A coughing episode is most likely to be triggered by pulling on a collar or when the dog pants heavily. [2]
    • The cough may happen when you pick up your dog or after they drink water.
  2. In addition to a cough, your dog may have difficulty breathing. This can be when he’s breathing normally, or when he is overly excited. This can lead to respiratory distress. [3] Your dog may also make a wheezing noise when he breathes. [4]
    • Labored breathing can be triggered by irritants, like smoke and dust, obesity, or hot weather. [5]
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  3. Another sign of a collapsed trachea is intolerance during exercise. This might present itself as labored breathing or an inability to perform normal exercise. [6] [7]
  4. If your dog is gagging while eating and drinking, it could be a sign of a collapsed trachea. This can happen because of the restriction in the tubes. [8]
    • While the dog is eating and drinking, look for signs of coughing, too.
  5. In extreme cases, if not enough air is getting into the dog's lungs, then the membranes lining his mouth and his tongue may take on a blue tinge. The dog can also turn blue when he is excited. [9]
    • In extreme cases, the dog could faint or lose consciousness.
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Method 2
Method 2 of 3:

Diagnosing A Collapsed Trachea

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  1. As soon as your dog starts presenting symptoms, take him to the vet. The vet will examine your dog and look for indications of a respiratory infection, such as a raised temperature, swollen lymph nodes, or unusual noises in the lung.
    • Your vet will probably want to perform bloodwork and other routine tests. [10] [11]
    • Other conditions may present like a collapsed trachea. Coughing is a general sign, so not every Chihuahua that coughs is going to have a collapsed trachea. Other coughs that can mimic this problem include having a long soft palate, kennel cough, heart disease, or lungworm. However, any cough should be checked out by your vet. [12]
  2. The next step is for the vet to x-ray the dog's lungs and throat. This will rule out a lung infection as the cause for the cough.
    • Because of the way the collapse shows up on x-rays, the collapsed trachea may not always be visible on the x-rays. [13]
  3. A fluoroscopy is a type of real-time x-ray, where it's possible to watch the actual movements of the trachea. However, this type of equipment is not available at every practice and referral to a specialist center may be necessary. [14]
  4. Your vet can determine if your chihuahua has a collapsed trachea with an endoscopy of the trachea. This involves a small fiber-optic camera being passed down the windpipe while your dog is anesthetized. The operator watches the images to see if the windpipe narrows during certain phases of breathing.
    • However, endoscopy can cause problems in small dogs because the camera can take up most of the diameter of the windpipe and stop the dog from breathing. Thus, the operator can only study the windpipe for brief periods of time before the camera has to be withdrawn and more anesthetic gas given. [15]
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Method 3
Method 3 of 3:

Understanding Collapsing Tracheas

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  1. The trachea, also known as the windpipe, is the tube that takes the air from mouth or nose to the lungs. When a trachea collapses, instead of the rings maintaining a totally open pipe or tube, they collapse or squash down.
    • When this happens, water cannot pass along and it makes it difficult for air to flow along.
    • The trachea can collapse because the cartilage rings are badly formed and are too wide and narrow, because the ligament filling the gap is too long and floppy, or due to a combination of both of these factors. [16]
    • The lining of the windpipe is very sensitive, and in a Chihuahua, this flattening can make the dog cough.
    • Small breeds, such as the Chihuahua, are most at risk, probably because of a genetic tendency for the rings to be malformed. Other breeds commonly affected include Yorkshire terriers, Pomeranians, Shih Tzus, Maltese terriers, toy poodles, and pugs.
  2. Collapsed tracheas can happen at any age. However, the condition generally appears around six to seven years of age. [17] Keep an eye on your chihuahua as he ages.
  3. One reason dogs might end up with a collapsed trachea is from the owner pulling on the collar. Jerking the collar or using a choke chain can put enough pressure on the windpipe with force that can cause it to collapse.
    • Use a dog harness instead of a collar when using a leash on your dog. [18]
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Expert Q&A

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  • Question
    What prevents the collapse of the trachea?
    Pippa Elliott, MRCVS
    Veterinarian
    Dr. Elliott, BVMS, MRCVS is a veterinarian with over 30 years of experience in veterinary surgery and companion animal practice. She graduated from the University of Glasgow in 1987 with a degree in veterinary medicine and surgery. She has worked at the same animal clinic in her hometown for over 20 years.
    Pippa Elliott, MRCVS
    Veterinarian
    Expert Answer
    A normal trachea doesn't collapsed because of two things: the stiffness of the cartilage rings that make up most of the circumference of the trachea, and the firm support given by ligaments that bridge the gap. Only when either the cartilage rings are too soft, or the ligaments stretch, does the trachea collapse.
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  • Question
    Is a collapsed trachea painful for dogs?
    Pippa Elliott, MRCVS
    Veterinarian
    Dr. Elliott, BVMS, MRCVS is a veterinarian with over 30 years of experience in veterinary surgery and companion animal practice. She graduated from the University of Glasgow in 1987 with a degree in veterinary medicine and surgery. She has worked at the same animal clinic in her hometown for over 20 years.
    Pippa Elliott, MRCVS
    Veterinarian
    Expert Answer
    A collapsing trachea is not painful, but if the narrowing is severe, it can be distressing. It becomes hard to breathe so the dog may struggle for breath, which is obviously alarming for the dog.
    Thanks! We're glad this was helpful.
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  • Question
    How do you tell if your dog has a collapsed trachea?
    Pippa Elliott, MRCVS
    Veterinarian
    Dr. Elliott, BVMS, MRCVS is a veterinarian with over 30 years of experience in veterinary surgery and companion animal practice. She graduated from the University of Glasgow in 1987 with a degree in veterinary medicine and surgery. She has worked at the same animal clinic in her hometown for over 20 years.
    Pippa Elliott, MRCVS
    Veterinarian
    Expert Answer
    An owner can get a clue from the way the dog breathes, which tends to be very noisy. But this can be mimicked by other conditions, and the only way to be certain is for a vet to take some radiographs of the neck area.
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      References

      1. ↑ http://www.petmd.com/dog/conditions/respiratory/c_dg_tracheal_collapse
      2. ↑ https://www.acvs.org/small-animal/tracheal-collapse
      3. ↑ http://pets.webmd.com/dogs/tracheal-collapse-dogs
      4. ↑ https://www.acvs.org/small-animal/tracheal-collapse
      5. ↑ http://pets.webmd.com/dogs/tracheal-collapse-dogs
      6. ↑ https://www.acvs.org/small-animal/tracheal-collapse
      7. ↑ http://www.petmd.com/dog/conditions/respiratory/c_dg_tracheal_collapse
      8. ↑ http://www.huffingtonpost.com/dr-karen-becker/tracheal-collapse-dogs_b_1871842.html
      9. ↑ https://www.acvs.org/small-animal/tracheal-collapse
      1. ↑ https://www.acvs.org/small-animal/tracheal-collapse
      2. ↑ http://www.petmd.com/dog/conditions/respiratory/c_dg_tracheal_collapse
      3. ↑ https://www.acvs.org/small-animal/tracheal-collapse
      4. ↑ https://www.acvs.org/small-animal/tracheal-collapse
      5. ↑ https://www.acvs.org/small-animal/tracheal-collapse
      6. ↑ https://www.acvs.org/small-animal/tracheal-collapse
      7. ↑ http://pets.webmd.com/dogs/tracheal-collapse-dogs
      8. ↑ http://pets.webmd.com/dogs/tracheal-collapse-dogs
      9. ↑ http://www.famouschihuahua.com/chihuahua-health-concerns/tracheal-collapse-in-chihuahua-puppies-and-dogs/

      About This Article

      Article Summary X

      To diagnose a collapsing trachea in your Chihuahua, listen for a dry cough that sounds like a goose honking. Additionally, pay attention to your dog’s breathing, since labored breathing or respiratory distress may be caused by problems with its trachea. You can also check to see if your Chihuahua's gums are blue, which might indicate its not getting enough air into its lungs. If you notice any of these symptoms in your dog, take it to the vet as soon as possible for a proper diagnosis and treatment plan. For advice from our Veterinary co-author on how to avoid a collapsing trachea in your dog, read on!

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