What is Urethral Occluder (Artificial Urethral Sphincter)?

Urethral occluder, also known as an artificial urethral sphincter, is a surgical device designed to address urinary incontinence in dogs. It is primarily used when other medical treatments have not been effective or in cases of refractory incontinence.

How Does Urethral Occluder Work? The urethral occluder consists of an inflatable silicone ring that is surgically placed around the proximal urethra (the tube through which urine flows from the bladder). The device is connected to a subcutaneous injection port. Here’s how it works:

1. Placement: During surgery, the silicone ring is positioned around the urethra.
2. Inflation: The ring can be inflated or deflated using the subcutaneous port. When inflated, it compresses the urethra externally, effectively acting as an artificial sphincter.
3. Continence: Some dogs achieve continence following placement of the device, while others may require inflation of the ring approximately one month after surgery.

Indications for Urethral Occluder:

• Refractory Incontinence: Dogs that do not respond adequately to standard medical treatments (such as alpha agonists or reproductive hormones) may benefit from urethral occluder placement.
• Long-Term Management: For cases where medical management alone is insufficient, the occluder provides an alternative solution.

Considerations:

• Patient Selection: Proper patient selection is crucial. Not all dogs are suitable candidates for urethral occluder placement.
• Monitoring: Regular follow-up visits are necessary to assess the device’s effectiveness and adjust inflation as needed.

Conclusion: Urethral occluder surgery offers a promising option for managing urinary incontinence in dogs. It provides an innovative approach to restoring continence and improving the quality of life for affected pets.

Remember, if you suspect your dog is experiencing urinary incontinence, consult your veterinarian. They can assess the underlying cause and recommend appropriate treatment options, including urethral occluder surgery.