Anesthesia for Dogs

If your dog will be having surgery then they will likely be receiving anesthesia during the procedure. Today, our Brookhaven vets share some useful information about anesthesia for dogs and how you can help your dog recover from the anesthesia.

When is dog anesthesia used?

Some veterinary treatments, such as dentistry, spay and neutering procedures, and surgery, must be performed while your pet is sedated. Anesthesia is regulated unconsciousness, where your pet's degree of consciousness is controlled so that they do not feel pain or move.

Most healthy pets, including senior pets, have no problems with anesthesia, and the dangers are generally tied to the treatment being performed rather than the anesthetic itself.

Are there any risks with anesthesia for dogs?

When we employ any anesthetic drug, there is always the possibility of an unpleasant reaction. Patients who are sedated lose their typical reflex capacity to swallow. If there is food in the stomach, the dog may vomit while under anesthesia or shortly afterward.

Because of breed, size, health, or age, some dogs have a higher anesthetic risk. Because of changes in or immaturity of some of their body's organs or systems, older dogs and very young dogs can also be more vulnerable to anesthesia.

Almost half of all anesthetic-related canine deaths occur within the first few hours after surgery. There are always hazards when administering any anesthetic medication to a patient, regardless of how long the patient remains sedated. Reactions can range from moderate to severe, with many symptoms including edema at the injection site. Fasting before anesthesia, as recommended by your veterinarian, is critical to lowering your dog's risk.

Is there any way to reduce the risk of complications with anesthesia?

Here are some steps you can take to reduce the risk of anesthesia-related complications:

  • Let your veterinarian know if your pet has ever reacted to sedation or anesthesia.
  • Make sure your veterinarian knows of all medications and supplements (including over-the-counter products) your pet takes.
  • Follow your veterinarian’s instructions before anesthesia, especially with regard to withholding food, water, and medications.

The following diagnostic tests before undergoing anesthesia normally include:

  • Chemistry tests to evaluate kidney, liver, and pancreatic function, as well as sugar levels
  • A complete blood count (CBC) to rule out blood-related conditions
  • Electrolyte tests to ensure your dog isn’t dehydrated or suffering from an electrolyte imbalance

In addition to blood tests, your vet might also recommend the following:

  • A catheter is part of the anesthetic preparation. The catheter can be used to provide anesthetics and intravenous fluids to keep your pet hydrated. Further, if needed, it would serve as a pathway to directly administer life-saving medications, should a crisis arise.
  • Intravenous fluids to help maintain hydration and blood pressure. IV fluids also help your dog with recovery by aiding the liver and kidneys in clearing the body of anesthetic agents more quickly.

All of these steps are designed to make sure your pet undergoes a successful treatment without any complications arising from the anesthesia.

Why are anesthesia consent forms necessary?

These forms are necessary to help make sure that you are fully informed when agreeing to the anesthetic and that you understand what will happen to your dog throughout the process.

The form will include consent to perform surgery or another specified diagnostic testing, as well as an estimate of the treatments' projected costs. Before undertaking anesthetic operations, the veterinarian is required by law in many places to seek written agreement from the owner. 

Will my dog be monitored while under anesthesia?

Yes, our veterinary team will work to help ensure your dog's safety throughout the procedure. Some of the steps we take to keep them safe include:

  • A technician or assistant is present during the anesthetic event to monitor your dog’s vital signs and to help adjust anesthetic levels, under the direction of the veterinarian.
  • A heart rate monitor counts your pet’s heartbeats per minute. Anesthesia and other factors can affect heart rate. By monitoring your dog’s heart rate, your veterinarian can make anesthetic adjustments quickly.
  • An electrocardiogram (ECG) measures your dog's heart rate and rhythm. It can detect arrhythmias, which are irregular heartbeats. If an arrhythmia is discovered, your veterinarian can adjust your anesthetic accordingly.
  • If your dog is enduring a lengthy surgical treatment, his core body temperature may be monitored. Body temperature fluctuations might lead to serious problems.
  • A blood pressure monitor measures the blood pressure of your dog. It provides detailed information on your pet's cardiovascular state when used in conjunction with other monitoring equipment.
  • Pulse oximetry may be used to monitor the amount of oxygen in your dog's blood and pulse rate. 
  • Carbon dioxide (CO2) is frequently monitored alongside oxygen because it helps assess if your pet is getting enough oxygen under anesthesia.

How long does anesthesia last in dogs?

Many dogs feel sleepy or tired for 12 to 24 hours after anesthesia. Your dog should be virtually normal by the time he is discharged. If your dog seems to be behaving strangely or you have been unable to wake them easily then you should contact your vet.

By following your vets post-surgery recommendations you can help your dog recover quickly and successfully.

Note: The advice provided in this post is intended for informational purposes and does not constitute medical advice regarding pets. For an accurate diagnosis of your pet's condition, please make an appointment with your vet.

Is your dog scheduled for surgery and you're worried about the anesthesia? Contact North Brookhaven Veterinary Hospital. We're here to answer any questions that you may have.