Ethanol Ablation for
Hyperparathyroidism in Dogs
What is Ultrasound-Guided Ethanol Ablation?
When a dog has primary hyperparathyroidism, the body produces too much parathyroid hormone (PTH), which can lead to persistently high calcium levels. Ultrasound-guided ethanol ablation is a minimally invasive treatment that targets the parathyroid gland directly – often without surgery.
The procedure involves injecting a small amount of sterile ethanol into the abnormal parathyroid gland, using ultrasound for precise placement. The ethanol causes controlled destruction of the overactive tissue, reducing hormone production and helping blood calcium return to normal.
Why Choose Ethanol Ablation?
For many dogs, ethanol ablation offers a less invasive alternative to traditional surgery. Benefits may include:
- No surgical incision
- Shorter anesthesia or heavy sedation time
- Outpatient or same-day discharge in most cases
- Lower risk of severe post-treatment hypocalcemia (low calcium)
- Faster recovery for most patients
- Reduced cost compared to surgery
Because of these advantages, ethanol guided ablation is considered a preferred first-line option for many dogs with primary hyperparathyroidism.
During Treatment
The procedure typically involves the following steps:
- Your dog is sedated or placed under light anesthesia to ensure they remain comfortable and still during treatment.
- Using advanced ultrasound guidance, our team carefully identifies the abnormal parathyroid gland in the neck.
- A very fine needle is precisely guided into the affected gland under real-time imaging.
- A small amount of sterile ethanol is injected into the gland to destroy the overactive tissue responsible for excess hormone production.
The entire procedure is minimally invasive and does not require a surgical incision. Most dogs recover quickly from sedation. We monitor calcium levels closely and guide you through each step of follow-up care.
After Treatment
Most dogs go home the same day, or after a brief monitoring period to ensure they recover comfortably from sedation and that calcium levels remain stable.
In some cases, a second treatment session may be recommended if hormone levels are not fully controlled after the first procedure. Follow-up visits are typically outpatient and allow us to monitor calcium levels as they return to normal.
As hormone levels rebalance, many dogs begin to show gradual improvements in thirst, appetite, and energy over the following days to weeks. Our focus is not only on correcting lab values, but on helping your dog feel better and return to a healthy, comfortable routine.
Risks and Possible Complications
Complications after ultrasound-guided ethanol ablation are uncommon, and most dogs tolerate the procedure well. Mild swelling, temporary inflammation, or minor discomfort at the injection site may occur. In rare cases, irritation of a nearby nerve can cause temporary voice changes or mild swallowing difficulty, which typically resolve as healing occurs.
Compared to surgery, ethanol ablation carries a lower risk of severe post-treatment hypocalcemia. Calcium levels are still monitored closely after the procedure to ensure a safe and steady return to normal.
Why Choose VSP for Ethanol Ablation?
Ultrasound-guided ethanol ablation requires specialized training and advanced ultrasound expertise. VSP is currently the only veterinary center in Kentucky offering this advanced procedure, helping dogs in the region access a minimally invasive option that may not be available elsewhere.
Our approach includes board-certified internal medicine specialists, advanced ultrasound guidance, comprehensive endocrine evaluation and follow-up, and close collaboration with referring veterinarians.
When Should You Seek Evaluation?
If your dog has persistently elevated calcium levels – or signs like increased thirst/urination, reduced appetite, vomiting, or low energy – an endocrine evaluation can help confirm the cause and determine whether ethanol ablation is a good fit.
Early diagnosis can make a meaningful difference in long-term health and comfort.
Frequently Asked {Questions}
What is ultrasound-guided ethanol ablation?
Ultrasound guided ethanol ablation is a minimally invasive procedure used to treat primary hyperparathyroidism in dogs. Using advanced ultrasound imaging, we precisely guide a small needle into the abnormal parathyroid gland and inject a controlled amount of sterile ethanol. This safety destroys the overactive tissue that is causing high calcium levels. By targeting only the affected gland, the procedure helps restore normal calcium balance without the need for traditional surgery.
Why would my dog need ethanol ablation instead of surgery?
Ethanol ablation offers many dogs a less invasive alternative to surgical removal of the parathyroid gland. Because it does not require a surgical incision, recovery is typically faster, anesthesia time is often shorter, and the overall risk of complications can be lower. Many dogs go home the same day. For appropriate candidates, it provides an effective way to treat the condition while minimizing stress on the body.
Is ethanol ablation considered curative?
In many cases, yes. The goal of ethanol ablation is to eliminate the abnormal tissue responsible for excess hormone production. When successful, calcium levels return to normal and long-term control is achieved. Some dogs may require more than one treatment session depending on how the gland responds, but overall outcomes are very favorable.
Will my dog need to stay at the hospital after ethanol ablation?
Most dogs remain with us for only a short monitoring period after the procedure and are able to return home the same day. We monitor calcium levels carefully and ensure your dog is comfortable before discharge. Our team provides clear instructions and follow-up plans so you feel confident caring for your dog at home.
Is ethanol ablation painful?
The procedure is performed under sedation or light anesthesia, so your dog does not feel discomfort during treatment. Afterward, mild soreness or temporary swelling in the neck area may occur but it typically short-lived. Most dogs resume normal behavior quickly.
What are the risks or possible complications of ethanol ablation?
Complications are uncommon. Mild local inflammation or temporary swelling can occur, and in rare cases, irritation of a nearby nerve may cause short-term voice changes or swallowing difficulty. Compared to surgery, severe post-treatment hypocalcemia is less common with ethanol ablation, although calcium levels are still closely monitored to ensure a safe recovery.
Can my dog develop low calcium after ethanol ablation?
While any treatment that reduces parathyroid hormone can affect calcium levels, ethanol ablation typically results in a more gradual adjustment compared to surgical removal. We monitor calcium levels after the procedure and provide guidance on signs to watch for, helping ensure any changes are addressed promptly.
Will the procedure need to be repeated?
Some dogs may need a second treatment if calcium levels do not fully normalize after the first session. Repeat procedures are generally straightforward and well tolerated. Our goal is to achieve stable, healthy calcium levels while minimizing stress and risk.
How soon will my dog start to feel better?
As calcium levels begin to return to normal, many dogs show gradual improvement in thirst, appetite, and energy over days to weeks. Because high calcium can place strain on the kidneys and other organs, early treatment often helps prevent further complications and supports long-term health.
Is ethanol ablation widely available?
No – ultrasound-guided ethanol ablation requires specialized training and advanced imaging expertise. VSP is currently the only veterinary center in Kentucky offering this procedure! Our internal medicine team is trained to perform with precision and careful monitoring before, during, and after treatment. For families seeking a minimally invasive option for hyperparathyroidism, we are proud to offer advanced treatment that may not be widely available elsewhere.
Will my primary veterinarian stay involved in my pet’s care?
You don’t have to choose between specialty care and your trusted veterinarian. We work closely with referring doctors and share detailed findings and recommendations. This team-based approach ensures your pet receives consistent, coordinated care at every stage.