Bandera's Syndrome in Dogs: Hereditary Disorder Guide

Bandera's Syndrome, sometimes called Bandera's Neonatal Cerebellar Ataxia (BNAt), is a hereditary neurological disorder almost exclusively seen in the Coton de Tulear puppies. This genetic condition specifically affects the cerebellum, the part of the brain responsible for coordinating movement and balance, leading to severe motor impairment.

The Causes of Bandera's Syndrome

This disorder is triggered by a gene mutation identified in the glutamate receptor genes, essential for puppies learning to walk and carry out basic functions such as standing, eating, and toileting. Bandera's Syndrome is inherited as a recessive trait, meaning a puppy must receive two copies of the faulty gene—one from each parent—to develop the disorder. While carriers carrying one copy show no symptoms, breeding two carriers together risks producing affected puppies.

Recognising the Signs Early

Newborn puppies with Bandera's Syndrome initially appear normal, suckling well and gaining weight. However, from about the third week, affected pups show uncoordinated, swimming-like limb movements, inability to stand, intention tremors (head bobbing when focusing), and jerky eye movements. These puppies struggle to move, eat, drink, and toilet independently, requiring full care.

How is Bandera's Syndrome Diagnosed?

Veterinary assessment is vital if puppies show these neurological signs. Diagnosis includes ruling out other causes such as brain injuries or infections. Genetic testing is available to confirm Bandera's Syndrome by identifying the specific gene mutation. Since there is no cure or treatment, vets may recommend humane euthanasia to prevent prolonged suffering due to poor quality of life.

Why Screening and Responsible Breeding Matter

Preventing Bandera's Syndrome relies on comprehensive DNA screening of all potential breeding Coton de Tulear dogs to avoid mating two carriers. Responsible breeders ensure stud dogs undergo routine testing and puppies are also screened to maintain breed health. This proactive approach reduces risks of this fatal disorder and protects future generations of the breed.

Supporting Families and the Breed’s Future

Understanding Bandera's Syndrome helps breeders and owners take informed steps to safeguard their dogs. If you are considering finding a Coton de Tulear puppy, always seek reputable breeders committed to genetic testing and ethical breeding practices. Together, we can support healthy puppies and prevent hereditary diseases like Bandera's Syndrome.