0:00 introduction
0:10 Clinical signs
2:08 When is surgery indicated
5:25 Myth busting
10:35 Surgical options
14:30 Intraventricular shunt
19:44 Syringopleural shunt
22:48 Craniocervical decompression ( foramen magnum decompression)
28:41 Conclusions and future outlook
Canine Chiari malformation and syringomyelia are neurological disorders commonly found in certain breeds, especially brachycephalic dogs.
Chiari malformation involves the crowding of the brain at the base of the skull, leading to obstruction of cerebrospinal fluid (CSF) flow.
Syringomyelia is the development of fluid-filled cavities (syrinx) within the spinal cord, often associated with Chiari malformation.
Surgical interventions aim to alleviate clinical signs, improve CSF flow, and reduce the progression of syringomyelia.
Ventriculoperitoneal Shunts
• procedure involves the placement of a shunt system to divert excess cerebrospinal fluid from the brain's ventricles to the abdominal cavity.
• Indicated if there is a dilated ventricular system
• Subdural Bleeds are a important post operative complication which may results in further surgical invention or intensive care
Syringo to Pleural Shunts:
• Involves the insertion of a shunt to drain the syrinx fluid into the pleural cavity, reducing spinal cord pressure.
• This procedure aims to prevent further expansion of the syrinx and alleviate associated clinical signs
• Considered in cases where ventriculoperitoneal shunts may not be sufficient or appropriate.
Tethered Spinal Cord Release:
• Tethered spinal cord occurs when the spinal cord is abnormally attached, restricting movement.
• Surgery involves releasing the tethering to improve spinal cord mobility and address associated neurological issues.
Arachnoid Adhesion Removal:
• Arachnoid adhesions can contribute to the obstruction of CSF flow.
• Surgical removal of adhesions aims to restore normal cerebrospinal fluid circulation and alleviate symptoms.
Foramen Magnum Decompression (Craniospinal Decompression):
This procedure involves removing a portion of the skull at the base (foramen magnum) to allow for improved CSF flow.
Some people favour placing an implant.
May improve clinical signs of pain but does not reverse (or shrink) the syrinx in most cases
Conclusion:
Surgical interventions for canine Chiari malformation and syringomyelia aim to reduce signs of pain, improve cerebrospinal fluid dynamics, and enhance the overall quality of life for affected dogs.
The choice of surgery depends on the specific conditions and severity of the disease in each case.
Veterinary consultation and thorough diagnostic evaluation are crucial for determining the most appropriate surgical approach.
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