Complete histories and neurologic examinations were obtained before MRI. Images were blindly reviewed and calculations were made by using OsiriX.
All analyses were performed by Student`s t-test, Spearman`s correlation, ANOVA, and chi-square test where appropriate.
Chiari-like malformation and SM were present in 65% and 52% of dogs, respectively.
Twenty-eight percent of dogs had neurologic deficits and 20% had neck pain.
Mean central canal (CC) transverse height was 2.5 mm with a mean length of 3.6 cervical vertebrae.
Neurologic deficits were significantly associated with a larger syrinx (P = .04, P = .08) and syrinx size increased with age (P = .027).
SM was associated with a smaller craniocervical junction (CCJ) height (P = .04) and larger ventricles (P = .0001; P < .001).
Syringomyelia and CM are prevalent in American Brussels Griffon dogs.
Syrinx size is associated with neurologic deficits, CM, larger ventricles, a smaller craniocervical junction height, neurologic deficits, and cerebellar herniation.
Fifty-two percent of dogs with a SM were clinically normal.
Source: Freeman, A.C., Platt, S.R., Kent, M., Huguet, E., Rusbridge, C. and Holmes, S. (2014), Chiari-Like Malformation and Syringomyelia in American Brussels Griffon Dogs. Journal of Veterinary Internal Medicine, 28: 1551–1559. doi: 10.1111/jvim.12421
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